Reference Library

Reference library entries, sortable by column

slaytheweb (opens in a new tab)	Verified	Roguelike	AGPL-3.0 (copyleft)	mixed	98%	Study	317	2026-05-29
Note AGPL-3.0 confirmed; art comes from public-domain old-book prints, game-icons (CC BY 3.0) and RPGUI, but the typeface is a paid licence from mbtype.com. Asset license Artwork from public-domain old-book sources, game-icons.net (CC BY 3.0) and RPGUI; typeface commercially licensed from mbtype.com (swap it). Engine / build Custom (JS) / npm Use as Study Repo https://github.com/oskarrough/slaytheweb Checked 2026-10-09
rogule.com (opens in a new tab)	Verified	Roguelike	AGPL-3.0 (copyleft)	clear	98%	Study	205	2026-01-07
Note AGPL-3.0 confirmed; the game draws with emoji and has no separate art or audio files to license. Asset license No bundled art or audio; graphics are emoji rendered by the system font. Engine / build Custom (JS) / npm Use as Study Repo https://github.com/chr15m/rogule.com Checked 2026-10-09
pvp (opens in a new tab)	Verified	3D shooter	GPL-3.0 (copyleft)	unknown	98%	Study	55	2025-11-14
Note GPL-3.0 (COPYING) with an MIT licence file also included; already a browser game, with no separate statement on its art and sound. Asset license No separate asset licence; sprites, textures, voice and fonts sources sit in the repo under the repo licence by default. Engine / build Three.js / npm Use as Study Repo https://github.com/kesiev/pvp Checked 2026-10-09
client (opens in a new tab)	Verified	3D shooter	AGPL-3.0 (copyleft)	mixed	95%	Study	257	2026-10-09
Note AGPL-3.0 confirmed (relicensed from MIT in Aug 2026); models and textures are stated as original, but audio is kept out of the repo because its rights are uncertain. Asset license README says code, textures, characters and logo are original (AI-assisted pipeline); Three.js MIT; audio pack not in repo, rights uncertain, falls back to synthesized sounds. Engine / build Three.js / npm Use as Study Repo https://github.com/corosolto/client Checked 2026-10-09
raylib-games (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	unknown	92%	Foundation	847	2026-08-13
Note zlib (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Make Use as Foundation Repo https://github.com/raysan5/raylib-games Checked 2026-10-09
Raylib-CPP-Starter-Template-for-VSCODE (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	92%	Foundation	800	2026-04-25
Note MIT (LICENSE.txt). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Make Use as Foundation Repo https://github.com/educ8s/Raylib-CPP-Starter-Template-for-VSCODE Checked 2026-10-09
raylib-game-template (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	unknown	92%	Foundation	711	2026-08-13
Note zlib (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Make Use as Foundation Repo https://github.com/raysan5/raylib-game-template Checked 2026-10-09
odin-raylib-hot-reload-game-template (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	unknown	92%	Foundation	629	2026-08-08
Note zlib (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib Use as Foundation Repo https://github.com/karl-zylinski/odin-raylib-hot-reload-game-template Checked 2026-10-09
NotBlox (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	clear	92%	Study	184	2026-06-07
Note MIT confirmed; it is already a Three.js browser game, with models from Kenney and Quaternius (CC0) hosted in a separate assets repo. Asset license Models and maps from Kenney and Quaternius (CC0), hosted in the separate Notblox-Assets repo. Engine / build Three.js / npm Use as Study Repo https://github.com/iErcann/NotBlox Checked 2026-10-09
Midless (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	92%	Foundation	140	2026-10-02
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib Use as Foundation Repo https://github.com/Sirvoid/Midless Checked 2026-10-09
RPGExample (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	unknown	92%	Study	135	2025-04-13
Note zlib (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Make Use as Study Repo https://github.com/raylib-extras/RPGExample Checked 2026-10-09
cTetris (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	92%	Study	116	2026-08-20
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Make Use as Study Repo https://github.com/tmpstpdwn/cTetris Checked 2026-10-09
raylib-gamejam-template (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	unknown	92%	Foundation	99	2026-08-13
Note zlib (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Make Use as Foundation Repo https://github.com/raysan5/raylib-gamejam-template Checked 2026-10-09
LambdaHack (opens in a new tab)	Verified	Roguelike	BSD-3-Clause (permissive)	unknown	90%	Foundation	664	2026-09-14
Note BSD-3-Clause (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build SDL2 / Cabal Use as Foundation Repo https://github.com/LambdaHack/LambdaHack Checked 2026-10-09
blocks (opens in a new tab)	Verified	Sandbox	Unlicense (permissive)	unknown	90%	Study	300	2026-10-05
Note Unlicense (LICENSE.txt). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build SDL2 Use as Study Repo https://github.com/jsoulier/blocks Checked 2026-10-09
SDLShooter (opens in a new tab)	Verified	2D shooter	CC0-1.0 (permissive)	unknown	90%	Study	102	2026-03-17
Note CC0-1.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build SDL2 / CMake Use as Study Repo https://github.com/WispSnow/SDLShooter Checked 2026-10-09
server-survival (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Study	6.4k	2026-10-08
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/pshenok/server-survival Checked 2026-10-09
Claude-of-Duty (opens in a new tab)	Verified	3D shooter	MIT (permissive)	clear	88%	Study	3.5k	2026-07-25
Note MIT (LICENSE). README says every texture, mesh and sound is generated. Uses the Call of Duty name/theme: rename before shipping. Asset license Procedural, no art assets Engine / build Three.js / npm Use as Study Repo https://github.com/mshumer/Claude-of-Duty Checked 2026-10-09
k8sgames (opens in a new tab)	Verified	Engine / starter kit	Apache-2.0 (permissive)	unknown	88%	Study	1.4k	2026-04-28
Note Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/rohitg00/k8sgames Checked 2026-10-09
template-webpack (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Foundation	1.2k	2026-04-10
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Foundation Repo https://github.com/phaserjs/template-webpack Checked 2026-10-09
pillar-valley (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Study	772	2026-05-26
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/EvanBacon/pillar-valley Checked 2026-10-09
viber3d (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Study	625	2025-03-16
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/instructa/viber3d Checked 2026-10-09
inkwave (opens in a new tab)	Verified	3D shooter	MIT (permissive)	clear	88%	Study	475	2026-10-09
Note MIT (LICENSE). README says sounds and graphics are generated in code. Asset license Procedural, no asset files Engine / build Three.js / npm Use as Study Repo https://github.com/jaydendavisnc/inkwave Checked 2026-10-09
koil (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	88%	Study	381	2025-05-11
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (raycaster) Use as Study Repo https://github.com/tsoding/koil Checked 2026-10-09
enari-engine (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	88%	Foundation	278	2025-07-09
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Foundation Repo https://github.com/iErcann/enari-engine Checked 2026-10-09
vue-phaser3 (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Study	224	2026-10-03
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Study Repo https://github.com/Sun0fABeach/vue-phaser3 Checked 2026-10-09
template-react-ts (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Foundation	202	2026-04-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Foundation Repo https://github.com/phaserjs/template-react-ts Checked 2026-10-09
template-vite-ts (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Foundation	196	2026-04-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Foundation Repo https://github.com/phaserjs/template-vite-ts Checked 2026-10-09
template-react (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Foundation	154	2026-04-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Foundation Repo https://github.com/phaserjs/template-react Checked 2026-10-09
template-nextjs (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Foundation	153	2026-04-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Foundation Repo https://github.com/phaserjs/template-nextjs Checked 2026-10-09
SunnyLand (opens in a new tab)	Verified	Platformer	CC0-1.0 (permissive)	unknown	88%	Study	138	2026-03-15
Note CC0-1.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build SDL3 / CMake Use as Study Repo https://github.com/WispSnow/SunnyLand Checked 2026-10-09
template-vite (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	88%	Foundation	138	2026-04-29
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Foundation Repo https://github.com/phaserjs/template-vite Checked 2026-10-09
operation-ironhold (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	88%	Study	100	2026-10-08
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/StarKnightt/operation-ironhold Checked 2026-10-09
three-descent (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	88%	Study	90	2026-08-16
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/mrdoob/three-descent Checked 2026-10-09
tidewright (opens in a new tab)	Verified	Sandbox	MIT (permissive)	clear	88%	Study	76	2026-08-06
Note MIT (LICENSE). README says sounds and graphics are generated in code. Asset license Procedural, no asset files Engine / build WebGL / npm Use as Study Repo https://github.com/winchxyz/tidewright Checked 2026-10-09
wglt (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	88%	Foundation	67	2026-07-23
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build TypeScript / npm Use as Foundation Repo https://github.com/codyebberson/wglt Checked 2026-10-09
TFPS (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	88%	Study	46	2026-06-26
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Three.js / npm Use as Study Repo https://github.com/xjown/TFPS Checked 2026-10-09
gra (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	88%	Study	38	2025-08-02
Note MIT (LICENSE.md). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (JS) / npm Use as Study Repo https://github.com/tmptrash/gra Checked 2026-10-09
poke-survivors (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	88%	Study	10	2026-04-06
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Phaser / npm Use as Study Repo https://github.com/giovanneluna/poke-survivors Checked 2026-10-09
godot-open-rpg (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	clear	85%	Study	3.0k	2026-05-01
Note MIT (LICENSE). CREDITS.md lists external assets, all CC0 in the entries read. Asset license Credited CC0 (Kenney, Zane Little) Engine / build Godot / Godot project Use as Study Repo https://github.com/gdquest-demos/godot-open-rpg Checked 2026-10-09
Microverse (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	85%	Study	2.5k	2026-04-10
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot Use as Study Repo https://github.com/KsanaDock/Microverse Checked 2026-10-09
Godot-Game-Template (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Foundation	1.7k	2026-09-10
Note MIT (LICENSE.txt). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/Maaack/Godot-Game-Template Checked 2026-10-09
Metroidvania-System (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	85%	Foundation	1.6k	2026-10-07
Note MIT (LICENSE.txt). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/KoBeWi/Metroidvania-System Checked 2026-10-09
libtcod (opens in a new tab)	Verified	Roguelike	BSD-3-Clause (permissive)	unknown	85%	Foundation	1.2k	2026-10-06
Note BSD-3-Clause (LICENSE.txt). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (C) / Make Use as Foundation Repo https://github.com/libtcod/libtcod Checked 2026-10-09
godot-game-template (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Foundation	990	2026-06-21
Note MIT (license file via API). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/crystal-bit/godot-game-template Checked 2026-10-09
godot-tactical-rpg (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Study	971	2026-02-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/ramaureirac/godot-tactical-rpg Checked 2026-10-09
godot-gamejam (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Study	812	2026-08-19
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/bitbrain/godot-gamejam Checked 2026-10-09
LabyrinthOfTheDragon (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	85%	Study	732	2025-08-24
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (C) / Make Use as Study Repo https://github.com/NesHacker/LabyrinthOfTheDragon Checked 2026-10-09
GameDemo (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	clear	85%	Study	629	2026-10-06
Note MIT (LICENSE). README credits Kenney/CC0 packs. Asset license Credited CC0 (Kenney etc.) Engine / build Godot / Godot project Use as Study Repo https://github.com/chickensoft-games/GameDemo Checked 2026-10-09
deck_builder_tutorial (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	85%	Study	456	2024-10-16
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/guladam/deck_builder_tutorial Checked 2026-10-09
Cats-Godot4-Modular-Souls-like-Template (opens in a new tab)	Verified	Action RPG	Unlicense (permissive)	unknown	85%	Foundation	430	2025-12-21
Note Unlicense (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/catprisbrey/Cats-Godot4-Modular-Souls-like-Template Checked 2026-10-09
Godot-PerfBullets (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	85%	Foundation	423	2025-03-06
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot Use as Foundation Repo https://github.com/Moonzel/Godot-PerfBullets Checked 2026-10-09
GodotGame (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Study	422	2026-09-25
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/chickensoft-games/GodotGame Checked 2026-10-09
BulletUpHell (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	85%	Foundation	368	2026-05-13
Note MIT (LICENSE.md). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/Dark-Peace/BulletUpHell Checked 2026-10-09
ROTA (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	85%	Study	333	2026-06-25
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/HarmonyHoney/ROTA Checked 2026-10-09
tiny_crate (opens in a new tab)	Verified	Platformer	Unlicense (permissive)	unknown	85%	Study	238	2026-06-25
Note Unlicense (UNLICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/HarmonyHoney/tiny_crate Checked 2026-10-09
godot-roguelite (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	85%	Study	221	2026-07-06
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/vorlac/godot-roguelite Checked 2026-10-09
godot-xr-template (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Foundation	216	2026-10-08
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/GodotVR/godot-xr-template Checked 2026-10-09
aarpg-tutorial (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	85%	Study	191	2026-02-05
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/michaelmalaska/aarpg-tutorial Checked 2026-10-09
godot-2d-topdown-template (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Foundation	191	2026-09-07
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/stesproject/godot-2d-topdown-template Checked 2026-10-09
sand-slide (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	85%	Study	142	2026-09-08
Note MIT (LICENSE.md). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot Use as Study Repo https://github.com/kiwijuice56/sand-slide Checked 2026-10-09
surfacer (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	85%	Study	118	2026-05-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/SnoringCatGames/surfacer Checked 2026-10-09
abyssal-walker (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	85%	Study	95	2026-03-12
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/EeroLai/abyssal-walker Checked 2026-10-09
CandyWrapper (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	85%	Study	88	2026-06-26
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/HarmonyHoney/CandyWrapper Checked 2026-10-09
Manymies (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	85%	Study	82	2025-06-03
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/Griiimon/Manymies Checked 2026-10-09
bread-adventure (opens in a new tab)	Verified	Platformer	Apache-2.0 (permissive)	unknown	85%	Study	70	2026-04-15
Note Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/wheafun/bread-adventure Checked 2026-10-09
OpenFPS (opens in a new tab)	Verified	3D shooter	MIT (permissive)	clear	85%	Study	62	2025-05-27
Note MIT (LICENSE). README: all assets CC BY 4.0 (attribution required). Asset license CC BY 4.0 assets Engine / build Godot / Godot project Use as Study Repo https://github.com/IMYdev/OpenFPS Checked 2026-10-09
Godot-Small-FPS (opens in a new tab)	Verified	3D shooter	CC0-1.0 (permissive)	mixed	85%	Study	53	2026-02-24
Note CC0-1.0 (LICENSE). Code CC0; sound effects credited to third parties in the README, check each. Asset license Code CC0; credited SFX Engine / build Godot / Godot project Use as Study Repo https://github.com/brodcoli/Godot-Small-FPS Checked 2026-10-09
BoomerShooter (opens in a new tab)	Verified	3D shooter	MIT (permissive)	clear	85%	Study	34	2026-07-19
Note MIT (LICENSE.md). README credits Kenney/CC0 packs. Asset license Credited CC0 (Kenney etc.) Engine / build Godot / Godot project Use as Study Repo https://github.com/bearlikelion/BoomerShooter Checked 2026-10-09
no-survivor-game (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	85%	Study	32	2026-10-02
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/Mocas-12/no-survivor-game Checked 2026-10-09
ARPG (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	85%	Study	29	2026-01-24
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/WithinAmnesia/ARPG Checked 2026-10-09
SimpleTopDownShooterTemplate2D (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	85%	Foundation	7	2026-07-15
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/Unchained112/SimpleTopDownShooterTemplate2D Checked 2026-10-09
SuperStarFighter (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	85%	Study	3	2026-10-01
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Study Repo https://github.com/DumpsterFireLabs/SuperStarFighter Checked 2026-10-09
Horde_Survival_3D_Godot (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	clear	97%	Study	5	2026-10-07
Note MIT confirmed; models and audio are Kenney and KayKit CC0, and the repo already has a Godot web export and Pages deploy. Asset license Kenney and KayKit CC0 models, weapons and skybox (docs/ASSET_CREDITS.md); SFX procedural. Engine / build Godot / Godot project Use as Study Repo https://github.com/mohsen-niksirat/Horde_Survival_3D_Godot Checked 2026-10-09
raylib-intro-course (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	clear	95%	Study	403	2026-08-13
Note zlib licence confirmed for this raylib teaching course; its small lesson resources come with the course and raylib builds for the web. Asset license Lesson images, fonts and sounds distributed with the zlib-licensed course. Engine / build Raylib / Make Use as Study Repo https://github.com/raysan5/raylib-intro-course Checked 2026-10-09
godot-3-demos-2022 (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	clear	92%	Study	423	2025-10-06
Note Code is MIT and art and audio are CC BY 4.0 credited to GDQuest; these Godot 3 demos export to the web easily. Asset license Images and audio CC BY 4.0 (attribute GDQuest and contributors). Engine / build Godot / Godot project Use as Study Repo https://github.com/gdquest-demos/godot-3-demos-2022 Checked 2026-10-09
ecs-survivors (opens in a new tab)	Verified	Engine / starter kit	GPL-3.0 (copyleft)	clear	92%	Study	68	2026-02-04
Note GPL-3.0 confirmed; tile art is Kenney Tiny Dungeon (CC0) and a web build is already on itch.io. Asset license Kenney Tiny Dungeon tiles (CC0); flecs MIT, raylib zlib, tmxlite zlib. Engine / build Raylib / Make Use as Study Repo https://github.com/ptidejteam/ecs-survivors Checked 2026-10-09
brotato-mini (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	clear	92%	Study	2	2026-09-08
Note MIT confirmed; sprites and fonts are Kenney CC0 and the other art is procedurally generated. Asset license Kenney Tiny Dungeon sprites and Kenney fonts CC0; bullets, floor and icons procedural (assets/CREDITS.md). Engine / build Godot / Godot project Use as Study Repo https://github.com/BLXCKBXXST/brotato-mini Checked 2026-10-09
circuit-artist (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	unknown	90%	Study	480	2026-10-04
Note GPL-3.0 confirmed; the repo documents an Emscripten web build, though sounds, fonts and images have no separate licence notes. Asset license No separate asset licence for assets/ (images, sounds, fonts); covered by repo GPL by default. Engine / build Raylib Use as Study Repo https://github.com/lets-all-be-stupid-forever/circuit-artist Checked 2026-10-09
hypnagonia (opens in a new tab)	Verified	Roguelike	AGPL-3.0 (copyleft)	mixed	90%	Study	111	2025-04-10
Note AGPL-3.0 plus a Steam addendum; assets and shaders carry their own per-folder licences, mostly CC BY-SA 4.0, and much art is AI-generated. Asset license Assets and shaders list licences in their folders, mostly CC BY-SA 4.0; card art largely AI-generated. Engine / build Godot / Godot project Use as Study Repo https://github.com/db0/hypnagonia Checked 2026-10-09
raylib-cpp-starter (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	clear	90%	Study	106	2026-01-19
Note zlib licence confirmed; this is a raylib C++ starter template with no game assets. Asset license No game assets; template only. Engine / build Raylib / Make Use as Study Repo https://github.com/CapsCollective/raylib-cpp-starter Checked 2026-10-09
riftbound-survivors (opens in a new tab)	Verified	Top-down shooter	GPL-3.0 (copyleft)	clear	85%	Study	2	2026-09-10
Note GPL-3.0 confirmed; art is procedurally drawn by the repo's own code, sound and music are CC0, and fonts are OFL. Asset license Art generated by repo code (GPL); SFX and music CC0; Orbitron and Rajdhani fonts OFL (see assets/ATTRIBUTION.md). Engine / build Godot / Godot project Use as Study Repo https://github.com/notAnKy/riftbound-survivors Checked 2026-10-09
SadConsole (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	80%	Foundation	1.4k	2026-09-25
Note MIT (LICENSE.md). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build MonoGame / dotnet Use as Foundation Repo https://github.com/Thraka/SadConsole Checked 2026-10-09
GoRogue (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	80%	Study	531	2026-09-13
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (C#) / dotnet Use as Study Repo https://github.com/Chris3606/GoRogue Checked 2026-10-09
SuperTux-Classic (opens in a new tab)	Verified	Platformer	GPL-3.0 (copyleft)	unknown	80%	Study	68	2026-07-04
Note GPL-3.0 confirmed; remastered art and music derive from SuperTux media, which is GPL / CC BY-SA, but no per-file asset licence is given. Asset license Remastered sprites, music and sound derived from SuperTux's GPL / CC BY-SA media; no explicit per-asset licence in repo. Engine / build Godot / Godot project Use as Study Repo https://github.com/Alzter/SuperTux-Classic Checked 2026-10-09
Wrecker (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	80%	Study	56	2026-10-05
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build C# / dotnet Use as Study Repo https://github.com/generatives/Wrecker Checked 2026-10-09
airplanes (opens in a new tab)	Verified	2D shooter	MIT (permissive)	clear	78%	Study	325	2024-11-03
Note MIT (LICENSE). README credits Kenney/CC0 packs. Asset license Credited CC0 (Kenney etc.) Engine / build Ebitengine / Go Use as Study Repo https://github.com/m110/airplanes Checked 2026-10-09
locas-ants (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	78%	Study	166	2025-06-06
Note MIT (LICENSE). Code license confirmed; assets not documented. Asset license Not stated Engine / build Lua Use as Study Repo https://github.com/piXelicidio/locas-ants Checked 2026-10-09
mr_snuggles_dungeon_adventure (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	78%	Study	110	2025-08-15
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Raylib / Go modules Use as Study Repo https://github.com/unklnik/mr_snuggles_dungeon_adventure Checked 2026-10-09
mineblox (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	78%	Study	69	2025-07-06
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Luau Use as Study Repo https://github.com/real2nix/mineblox Checked 2026-10-09
WildWorld (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	78%	Study	40	2026-03-31
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Love2D Use as Study Repo https://github.com/MarvelWild/WildWorld Checked 2026-10-09
TopHat-Shooter (opens in a new tab)	Verified	Top-down shooter	Apache-2.0 (permissive)	clear	78%	Study	7	2026-10-06
Note Apache-2.0 (LICENSE). README says sounds and graphics are generated in code. Asset license Procedural, no asset files Engine / build Raylib (Nim) / Nimble Use as Study Repo https://github.com/Paycei/TopHat-Shooter Checked 2026-10-09
Vampire_Survivors-clone (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	78%	Study	3	2026-07-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Pygame / pip Use as Study Repo https://github.com/yagizkoryurek/Vampire_Survivors-clone Checked 2026-10-09
pyxel-survivors (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	78%	Study	1	2026-09-29
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Pyxel / pip Use as Study Repo https://github.com/seanGSISG/pyxel-survivors Checked 2026-10-09
bonsai (opens in a new tab)	Verified	Sandbox	WTFPL (permissive)	unknown	75%	Foundation	1.4k	2026-10-05
Note WTFPL (LICENSE). LICENSE text matches WTFPL (permissive); assets ship as release binaries, license not stated. Asset license Assets via separate release download Engine / build Custom (OpenGL) Use as Foundation Repo https://github.com/scallyw4g/bonsai Checked 2026-10-09
exengine (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	75%	Foundation	789	2026-02-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (C++/OpenGL) Use as Foundation Repo https://github.com/solenum/exengine Checked 2026-10-09
Nuake (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	75%	Foundation	496	2025-09-03
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (C++/OpenGL) Use as Foundation Repo https://github.com/antopilo/Nuake Checked 2026-10-09
libTech (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	75%	Foundation	64	2026-04-16
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (C++/OpenGL) Use as Foundation Repo https://github.com/sbarisic/libTech Checked 2026-10-09
tinybox (opens in a new tab)	Verified	Sandbox	AGPL-3.0 (copyleft)	mixed	60%	Study	55	2026-05-15
Note AGPL-3.0 confirmed; assets are mixed CC0, CC BY-SA 4.0 and MIT, listed in licenses.txt files in each data folder. Asset license Per-folder licenses.txt: CC0, CC BY-SA 4.0 and MIT assets. Engine / build Godot Use as Study Repo https://github.com/caelan-douglas/tinybox Checked 2026-10-09
Reia (opens in a new tab)	Verified	Action RPG	AGPL-3.0 (copyleft)	unknown	40%	Study	970	2026-10-04
Note AGPL-3.0 confirmed; art lives in Git LFS with no separate asset licence, and the Godot 4 plus Rust GDExtension and server stack makes a web build hard. Asset license No separate asset licence; art and models pulled via Git LFS, presumably under the repo licence. Engine / build Godot / Godot project Use as Study Repo https://github.com/Quaint-Studios/Reia Checked 2026-10-09
Thrive (opens in a new tab)	Verified	Sandbox	GPL-3.0-or-later (copyleft)	clear	15%	Study	3.7k	2026-10-09
Note GPL-3.0-or-later with a modding exception; assets are CC BY-SA 3.0 (assets/LICENSE.txt), but the Godot C# build has no web export. Asset license assets/LICENSE.txt: CC BY-SA 3.0 for models, textures and sounds (stored in Git LFS). Engine / build Godot / dotnet Use as Study Repo https://github.com/Revolutionary-Games/Thrive Checked 2026-10-09
hyperrogue (opens in a new tab)	Verified	Roguelike	GPL-2.0 (copyleft)	unknown	95%	Study	712	2026-09-17
Note GPL-2.0 confirmed and an official browser build exists; fonts are OFL / DejaVu, but the music files have no licence file in the repo. Asset license Fonts DejaVu and OFL licences in licenses/; music tracks by named composers have no licence file in the repo. Engine / build SDL2 / CMake Use as Study Repo https://github.com/zenorogue/hyperrogue Checked 2026-10-09
basque (opens in a new tab)	Verified	Engine / starter kit	MPL-2.0 (copyleft)	unknown	95%	Study	451	2026-05-18
Note MPL-2.0 confirmed and a WebAssembly build already runs in the browser; the sprite and music files have no separate licence. Asset license No separate licence for sprites, map data and music in assets/. Engine / build SDL2 / Make Use as Study Repo https://github.com/ryanpcmcquen/basque Checked 2026-10-09
sdl-sopwith (opens in a new tab)	Verified	2D shooter	GPL-2.0 (copyleft)	clear	95%	Study	118	2026-09-28
Note GPL-2.0 confirmed; graphics are built into the code and the repo already ships an Emscripten web build script. Asset license Graphics and sounds generated in code under GPL-2.0; no separate asset files. Engine / build SDL2 / CMake Use as Study Repo https://github.com/fragglet/sdl-sopwith Checked 2026-10-09
The-Powder-Toy (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	clear	85%	Study	5.4k	2026-10-09
Note GPL-3.0 confirmed; the game has almost no art or audio assets, and its bundled libraries are all permissive or GPL-compatible. Asset license Minimal built-in assets (font, icons) under GPL; third-party libraries listed in README. Engine / build SDL2 Use as Study Repo https://github.com/The-Powder-Toy/The-Powder-Toy Checked 2026-10-09
bracket-lib (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	70%	Foundation	1.7k	2025-12-05
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (Rust) / Cargo Use as Foundation Repo https://github.com/amethyst/bracket-lib Checked 2026-10-09
flare-engine (opens in a new tab)	Verified	Action RPG	GPL-3.0 (copyleft)	clear	70%	Study	1.3k	2026-10-05
Note GPL-3.0 confirmed for the engine; the default mod is GPL-3.0 and CC BY-SA 3.0, with OFL and GPL fonts. Asset license Default mod GPL v3 and CC BY-SA 3.0; Liberation Sans (OFL) and GNU Unifont (GPL v2 with font exception). Engine / build FLARE engine (custom C++/SDL2) / CMake Use as Study Repo https://github.com/flareteam/flare-engine Checked 2026-10-09
termsand (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	70%	Study	317	2026-07-21
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Rust / Cargo Use as Study Repo https://github.com/cgsdev0/termsand Checked 2026-10-09
open-strike (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	70%	Study	244	2026-10-06
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (Rust) / Cargo Use as Study Repo https://github.com/pocket-nexus/open-strike Checked 2026-10-09
FallingSandEngine (opens in a new tab)	Verified	Sandbox	BSD-3-Clause (permissive)	unknown	70%	Foundation	75	2026-04-20
Note BSD-3-Clause (LICENSE). BSD-3 confirmed; assets under gamedir/assets not separately licensed. Asset license Not stated Engine / build Rust / Cargo Use as Foundation Repo https://github.com/PieKing1215/FallingSandEngine Checked 2026-10-09
roguelike (opens in a new tab)	Verified	Top-down shooter	GPL-3.0 (copyleft)	unknown	70%	Study	2	2025-09-28
Note GPL-3.0 confirmed for this small university project; it gives no separate licence or credits for its sprites and sounds. Asset license No asset licence or credits; files in repo presumed under GPL-3.0. Engine / build SDL2 (C++) Use as Study Repo https://github.com/Chubbynumnum/roguelike Checked 2026-10-09
RedRunner (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	68%	Study	924	2026-01-29
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/BayatGames/RedRunner Checked 2026-10-09
zircon (opens in a new tab)	Verified	Roguelike	Apache-2.0 (permissive)	unknown	68%	Foundation	795	2026-06-24
Note Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Kotlin Use as Foundation Repo https://github.com/Hexworks/zircon Checked 2026-10-09
lsss-wip (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	68%	Study	244	2026-10-08
Note MIT (LICENSE.md). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/Dreaming381/lsss-wip Checked 2026-10-09
PanguEngine (opens in a new tab)	Verified	Sandbox	Apache-2.0 (permissive)	unknown	68%	Foundation	179	2026-05-10
Note Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Java / Gradle Use as Foundation Repo https://github.com/UnknownDomainGames/PanguEngine Checked 2026-10-09
unity-metroidvania (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	68%	Study	147	2025-01-13
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/kennedyvnak/unity-metroidvania Checked 2026-10-09
spacescape (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	68%	Study	134	2025-10-12
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Flame / Flutter Use as Study Repo https://github.com/ufrshubham/spacescape Checked 2026-10-09
dinosaur-exploder (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	68%	Study	110	2026-10-05
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build FXGL / Maven Use as Study Repo https://github.com/jvondermarck/dinosaur-exploder Checked 2026-10-09
Quilly-s-Adventure (opens in a new tab)	Verified	Platformer	MIT (permissive)	unknown	68%	Study	100	2024-10-26
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build LibGDX / Gradle Use as Study Repo https://github.com/Quillraven/Quilly-s-Adventure Checked 2026-10-09
Neon (opens in a new tab)	Verified	2D shooter	MIT (permissive)	unknown	68%	Study	82	2025-11-22
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Android Compose / Gradle Use as Study Repo https://github.com/mariodujic/Neon Checked 2026-10-09
hack-and-slash-framework-OLD (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	68%	Foundation	69	2025-08-02
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Foundation Repo https://github.com/christides11/hack-and-slash-framework-OLD Checked 2026-10-09
ARPGGame (opens in a new tab)	Verified	Action RPG	Apache-2.0 (permissive)	unknown	68%	Study	63	2026-09-07
Note Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/houko/ARPGGame Checked 2026-10-09
Clonecraft (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	68%	Study	32	2026-09-07
Note MIT (LICENSE.md). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / dotnet Use as Study Repo https://github.com/NotHyper-474/Clonecraft Checked 2026-10-09
UnityGameplayAbilitySystemSample (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	68%	Study	26	2026-05-27
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/MaiKuraki/UnityGameplayAbilitySystemSample Checked 2026-10-09
sentaur-survivors (opens in a new tab)	Verified	Top-down shooter	Apache-2.0 (permissive)	clear	68%	Study	18	2026-08-21
Note Apache-2.0 (LICENSE). README: code, art and SFX Apache-2.0; music track CC BY 4.0 (needs credit). Asset license Apache-2.0 art/sfx; music CC BY 4.0 Engine / build Unity / Unity project Use as Study Repo https://github.com/getsentry/sentaur-survivors Checked 2026-10-09
TopDownShooter (opens in a new tab)	Verified	Top-down shooter	MIT (permissive)	unknown	68%	Study	12	2026-09-19
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/daltonbr/TopDownShooter Checked 2026-10-09
vx_bevy (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	65%	Study	332	2024-12-11
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Bevy / Cargo Use as Study Repo https://github.com/Game4all/vx_bevy Checked 2026-10-09
godot-3d-multiplayer-template (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	65%	Foundation	171	2026-09-02
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Godot project Use as Foundation Repo https://github.com/devmoreir4/godot-3d-multiplayer-template Checked 2026-10-09
teeworlds (opens in a new tab)	Verified	Engine / starter kit	zlib (permissive)	clear	60%	Study	2.6k	2025-07-12
Note Code is under the zlib licence; everything in data and datasrc is CC BY-SA 3.0, except the font, which has its own licence. Asset license license.txt: all content under data/ and datasrc/ is CC BY-SA 3.0; font has its own licence. Engine / build SDL2 / CMake Use as Study Repo https://github.com/teeworlds/teeworlds Checked 2026-10-09
DungeonTemplateLibrary (opens in a new tab)	Verified	Roguelike	BSL-1.0 (permissive)	unknown	60%	Foundation	1.5k	2025-04-09
Note BSL-1.0 (license file via API). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Godot / Unreal project Use as Foundation Repo https://github.com/AsPJT/DungeonTemplateLibrary Checked 2026-10-09
azimuth (opens in a new tab)	Verified	Platformer	GPL-3.0 (copyleft)	clear	60%	Study	62	2026-05-20
Note GPL-3.0 confirmed; vector graphics are drawn in code and the music may also be used under CC BY 4.0, but the old OpenGL renderer needs work for the web. Asset license Graphics drawn in code (GPL-3.0); music in data/music optionally CC BY 4.0. Engine / build SDL2 / Make Use as Study Repo https://github.com/mdsteele/azimuth Checked 2026-10-09
principia (opens in a new tab)	Verified	Sandbox	BSD-3-Clause (permissive)	clear	50%	Study	420	2026-09-23
Note BSD-3-Clause (Bithack AB) covers the whole repo, including the data folder; it is SDL2 plus OpenGL ES, with no web build yet. Asset license No separate asset licence; data/ falls under the repo BSD-3-Clause licence. Engine / build SDL2 Use as Study Repo https://github.com/Bithack/principia Checked 2026-10-09
xonotic (opens in a new tab)	Verified	3D shooter	GPL-3.0-or-later (copyleft)	clear	25%	Study	533	2026-10-06
Note Game code is GPL-3.0-or-later and the DarkPlaces engine is GPL-2.0-or-later; data lives in a separate repo under the same terms. Asset license Data (xonotic-data.pk3dir) covered by the GPL-3.0+ grant in COPYING; contributors certify rights. Engine / build DarkPlaces (id Tech 1 derived) Use as Study Repo https://github.com/xonotic/xonotic Checked 2026-10-09
ericw-tools (opens in a new tab)	Verified	Engine / starter kit	GPL-2.0 (copyleft)	clear	20%	Study	505	2026-09-12
Note GPL-2.0-or-later confirmed (GPL-3.0+ when built with Embree); these are command-line map compilers with no game assets. Asset license No game assets; compiler tools plus test maps. Engine / build id Tech tools Use as Study Repo https://github.com/ericwa/ericw-tools Checked 2026-10-09
Unvanquished (opens in a new tab)	Verified	3D shooter	GPL (with ET terms) (copyleft)	clear	10%	Study	1.1k	2026-07-17
Note Code is GPL (with Wolfenstein ET additional terms) and media are CC BY-SA 2.5, but assets download separately and the Daemon engine has no web build. Asset license COPYING.txt: media under CC BY-SA 2.5; asset paks downloaded separately from unvanquished.net. Engine / build Daemon (id Tech 3 derived) Use as Study Repo https://github.com/Unvanquished/Unvanquished Checked 2026-10-09
SLADE (opens in a new tab)	Verified	Engine / starter kit	GPL-2.0 (copyleft)	clear	10%	Study	872	2026-10-09
Note GPL-2.0 confirmed; SLADE is a wxWidgets desktop editor for Doom data with no game assets, so a browser port is unlikely. Asset license No game assets; editor tool only. Engine / build id Tech tools Use as Study Repo https://github.com/sirjuddington/SLADE Checked 2026-10-09
netradiant-custom (opens in a new tab)	Verified	Engine / starter kit	GPL / LGPL / BSD (mixed) (copyleft)	clear	5%	Study	465	2026-09-01
Note Mixed GPL, LGPL and BSD per file, inherited from GtkRadiant; it is a desktop map editor with no game assets. Asset license No game assets; editor tool only. Engine / build id Tech tools Use as Study Repo https://github.com/Garux/netradiant-custom Checked 2026-10-09
taisei (opens in a new tab)	Verified	2D shooter	MIT (permissive)	mixed	98%	Study	1.6k	2026-10-06
Note Code is MIT and an experimental WebGL build is already playable; music and portraits are CC BY 4.0, and it is a Touhou fan game using ZUN's characters. Asset license Soundtrack (Tuck V) and portraits (afensorm) CC BY 4.0; background photos public domain or CC0; Touhou characters under ZUN's fan-work terms. Engine / build Custom (C/OpenGL) / Meson Use as Study Repo https://github.com/taisei-project/taisei Checked 2026-10-09
hydracastlelabyrinth (opens in a new tab)	Verified	Platformer	GPL-2.0 (copyleft)	clear	98%	Study	96	2026-08-11
Note GPL-2.0 confirmed with the original author's permission covering every file, and an Emscripten web version is already playable. Asset license Original author's art and music released under GPL-2.0 with the code. Engine / build Custom (C) / CMake Use as Study Repo https://github.com/ptitSeb/hydracastlelabyrinth Checked 2026-10-09
Rotten-Soup (opens in a new tab)	Verified	Roguelike	GPL-3.0 (copyleft)	clear	97%	Study	406	2026-07-01
Note GPL-3.0 confirmed and it already runs in the browser; tiles come from the DawnLike tileset, which needs attribution. Asset license DawnLike tileset (CC BY 4.0, attribution required); maps and data under GPL-3.0. Engine / build PixiJS / npm Use as Study Repo https://github.com/Larkenx/Rotten-Soup Checked 2026-10-09
OpenTTD (opens in a new tab)	Verified	Sandbox	GPL-2.0 (copyleft)	mixed	90%	Study	8.3k	2026-10-08
Note GPL-2.0 confirmed with an in-tree Emscripten port; it needs a base set, and the free OpenGFX, OpenSFX and OpenMSX sets avoid the proprietary original TTD data. Asset license Needs separate base sets: free OpenGFX/OpenSFX/OpenMSX, or proprietary Transport Tycoon Deluxe files. Engine / build C++ Use as Study Repo https://github.com/OpenTTD/OpenTTD Checked 2026-10-09
dose-response (opens in a new tab)	Verified	Roguelike	AGPL-3.0 (copyleft)	unknown	85%	Study	115	2026-10-05
Note AGPL-3.0-or-later confirmed; the art is simple tiles and bundled fonts have no separate notice in the README. Asset license No separate asset licence; bundled fonts carry their own licences. Engine / build Custom (Rust) / Cargo Use as Study Repo https://github.com/tryjumping/dose-response Checked 2026-10-09
Ethertum (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	unknown	75%	Study	544	2025-11-04
Note GPL-3.0 confirmed and CI already builds a WebAssembly release; textures and models carry no separate licence. Asset license No separate asset licence; assets presumed under GPL-3.0. Engine / build Bevy / Cargo Use as Study Repo https://github.com/Dreamtowards/Ethertum Checked 2026-10-09
umoria (opens in a new tab)	Verified	Roguelike	GPL-3.0 (copyleft)	clear	75%	Study	454	2025-07-26
Note GPL-3.0-or-later confirmed after the 2008 relicensing; it is a text-mode game with no art or audio. Asset license No art or audio; text-mode game data under GPL-3.0. Engine / build Custom (C++) / CMake Use as Study Repo https://github.com/dungeons-of-moria/umoria Checked 2026-10-09
remixed-dungeon (opens in a new tab)	Verified	Roguelike	GPL-3.0 (copyleft)	unknown	75%	Study	295	2026-10-09
Note GPL-3.0 confirmed for this Pixel Dungeon fork; art inherits the GPL with no separate notice, and an HTML build module exists in the repo. Asset license No separate asset licence; Pixel Dungeon-derived art presumed GPL-3.0. Engine / build Custom (Java) / Gradle Use as Study Repo https://github.com/NYRDS/remixed-dungeon Checked 2026-10-09
TheSeeker (opens in a new tab)	Verified	Platformer	MIT OR Apache-2.0 (permissive)	clear	75%	Study	110	2026-05-11
Note Code is MIT or Apache-2.0, project-owned assets are CC BY 4.0 and fonts are OFL 1.1; Bevy can target WebAssembly. Asset license Game assets CC BY 4.0 unless noted; Tektur and other fonts SIL OFL 1.1. Engine / build Bevy / Cargo Use as Study Repo https://github.com/TheSeekerGame/TheSeeker Checked 2026-10-09
flare-game (opens in a new tab)	Verified	Action RPG	CC BY-SA 3.0 (copyleft)	clear	70%	Study	1.3k	2026-08-08
Note All Flare: Empyrean Campaign art and data are CC BY-SA 3.0 or later, and fonts are OFL; it needs the GPL-3.0 flare-engine to run. Asset license Art and data CC BY-SA 3.0+; Liberation, Bona Nova SC, Noto and Marck Script fonts under OFL 1.1. Engine / build FLARE engine / CMake Use as Study Repo https://github.com/flareteam/flare-game Checked 2026-10-09
SquidLib (opens in a new tab)	Verified	Roguelike	Apache-2.0 (permissive)	mixed	70%	Study	472	2024-10-26
Note Apache-2.0 confirmed for this Java roguelike library; it ships fonts and icons with their own notices, and libGDX demos already run in the browser. Asset license Bundled fonts and icons have separate notices (NOTICE.txt, icons-license.txt). Engine / build Custom (Java) / Gradle Use as Study Repo https://github.com/yellowstonegames/SquidLib Checked 2026-10-09
shooter-rs (opens in a new tab)	Verified	Top-down shooter	GPL-3.0 (copyleft)	unknown	70%	Study	34	2026-09-12
Note GPL-3.0 confirmed; images and sounds are in Git LFS with no separate licence, and Bevy can target WebAssembly. Asset license No separate asset licence; LFS assets presumed GPL-3.0. Engine / build Bevy / Cargo Use as Study Repo https://github.com/Aunmag/shooter-rs Checked 2026-10-09
zoxel (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	unknown	65%	Study	40	2025-08-10
Note GPL-3.0 confirmed; most content is generated in code and the res folder has no separate licence. Asset license No separate asset licence for res/; voxel content largely procedural. Engine / build C Use as Study Repo https://github.com/deus369/zoxel Checked 2026-10-09
qengine (opens in a new tab)	Verified	3D shooter	GPL-2.0 (copyleft)	unknown	60%	Study	890	2026-08-24
Note GPL-2.0 confirmed for this Quake II-derived engine; the bundled base assets have no separate licence statement. Asset license Base sounds, models and UI textures in assets/ have no separate licence; presumed GPL-2.0. Engine / build Custom (C++/OpenGL) Use as Study Repo https://github.com/klaussilveira/qengine Checked 2026-10-09
roguelike (opens in a new tab)	Verified	Roguelike	GPL-3.0 (copyleft)	clear	60%	Study	144	2026-02-07
Note GPL-3.0 confirmed; the font is derived from Spleen under BSD-2-Clause and there is no other art. Asset license Font derived from Spleen (BSD-2-Clause); text-mode game otherwise. Engine / build Zig Use as Study Repo https://github.com/kiedtl/roguelike Checked 2026-10-09
Terasology (opens in a new tab)	Verified	Sandbox	Apache-2.0 (permissive)	unknown	55%	Study	3.9k	2026-10-08
Note Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Java / Gradle Use as Study Repo https://github.com/MovingBlocks/Terasology Checked 2026-10-09
opensurge (opens in a new tab)	Verified	Engine / starter kit	GPL-3.0 (copyleft)	mixed	55%	Study	482	2026-10-09
Note GPL-3.0 confirmed; art, music and fonts use assorted free licences (CC0, CC BY, CC BY-SA, OFL, GPL) with texts kept in licenses/. Asset license Per-asset free licences (CC0, CC BY 3.0/4.0, CC BY-SA 3.0/4.0, OFL, GPL); licence texts in licenses/. Engine / build Allegro / CMake Use as Study Repo https://github.com/alemart/opensurge Checked 2026-10-09
rustcraft (opens in a new tab)	Verified	Sandbox	MIT (permissive)	clear	55%	Study	203	2025-10-02
Note Code and original assets are MIT; some textures come from Pixel Perfection (CC BY-SA 4.0) and fonts are public domain. Asset license Original assets MIT; Pixel Perfection-derived textures CC BY-SA 4.0; fonts public domain. Engine / build Bevy / Cargo Use as Study Repo https://github.com/c2i-junia/rustcraft Checked 2026-10-09
Magic_Ling_Pixel_Dungeon (opens in a new tab)	Verified	Roguelike	GPL-3.0 (copyleft)	unknown	55%	Study	89	2026-10-09
Note GPL-3.0 confirmed for this Shattered Pixel Dungeon fork; its art inherits the GPL with no separate asset notice. Asset license No separate asset licence; Pixel Dungeon-derived art presumed GPL-3.0. Engine / build LibGDX / Gradle Use as Study Repo https://github.com/LingASDJ/Magic_Ling_Pixel_Dungeon Checked 2026-10-09
LuaSTG-Sub (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	55%	Foundation	61	2026-08-29
Note MIT (license file via API). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build LuaSTG / CMake Use as Foundation Repo https://github.com/Legacy-LuaSTG-Engine/LuaSTG-Sub Checked 2026-10-09
Cataclysm-BN (opens in a new tab)	Verified	Roguelike	CC BY-SA 3.0 (copyleft)	mixed	50%	Study	1.3k	2026-10-09
Note The whole game is CC BY-SA 3.0, an unusual choice for code, with OFL fonts; sound packs are separate downloads. Asset license Data, tiles and code CC BY-SA 3.0; Terminus font OFL; soundpacks are third-party downloads with their own licences. Engine / build Custom (C++) / CMake Use as Study Repo https://github.com/cataclysmbn/Cataclysm-BN Checked 2026-10-09
open-builder (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	unknown	50%	Study	713	2025-12-10
Note GPL-3.0 confirmed; textures have no separate licence file, and the client-server OpenGL setup would need real porting work. Asset license No separate asset licence; credits.txt names contributors only. Engine / build Custom (OpenGL) / CMake Use as Study Repo https://github.com/Hopson97/open-builder Checked 2026-10-09
Glide (opens in a new tab)	Verified	Engine / starter kit	MIT (permissive)	unknown	50%	Foundation	505	2024-12-02
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Custom (Swift) Use as Foundation Repo https://github.com/cocoatoucher/Glide Checked 2026-10-09
ivan (opens in a new tab)	Verified	Roguelike	GPL-2.0 (copyleft)	mixed	50%	Study	351	2026-09-09
Note GPL-2.0 confirmed; LICENSING lists bundled libraries and one CC BY-SA 3.0 font, with the rest of the art and music under the game licence. Asset license Graphics and music under GPL-2.0 per LICENSING; Font2.png CC BY-SA 3.0. Engine / build Custom (C++) / CMake Use as Study Repo https://github.com/Attnam/ivan Checked 2026-10-09
xsofy (opens in a new tab)	Verified	Roguelike	MIT (permissive)	unknown	50%	Study	209	2026-10-07
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Clojure Use as Study Repo https://github.com/nooga/xsofy Checked 2026-10-09
Multiplayer-FPS (opens in a new tab)	Verified	3D shooter	MIT (permissive)	unknown	48%	Study	1.3k	2024-12-30
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/Armour/Multiplayer-FPS Checked 2026-10-09
UnityMultiplayerARPG_MMO (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	48%	Study	497	2026-09-30
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unity / Unity project Use as Study Repo https://github.com/suriyun-mmorpg/UnityMultiplayerARPG_MMO Checked 2026-10-09
luanti (opens in a new tab)	Verified	Sandbox	LGPL-2.1-or-later (copyleft)	clear	45%	Study	13.7k	2026-10-07
Note Engine code is LGPL-2.1-or-later; built-in textures and sounds are CC BY-SA 3.0 with a few Apache-2.0 files, and only experimental web ports exist. Asset license LICENSE.txt: textures and sounds CC BY-SA 3.0, a few files Apache-2.0; fonts with their own licences. Engine / build Luanti Use as Study Repo https://github.com/luanti-org/luanti Checked 2026-10-09
NumcraftRust (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	clear	45%	Study	144	2026-10-06
Note GPL-3.0 confirmed, and the README says the assets are covered by it too; the game targets NumWorks calculators. Asset license README states code and assets are both GPL-3.0. Engine / build Rust / Cargo Use as Study Repo https://github.com/yannis300307/NumcraftRust Checked 2026-10-09
naikari (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	mixed	45%	Study	91	2026-09-06
Note Code is GPL-3.0 (later versions for most contributors), other data is CC BY-SA 4.0, and art, font and sound licences are tracked per file in YAML. Asset license gfx/ARTWORK_LICENSE.yaml, fonts/FONT_LICENSE.yaml and snd/SOUND_LICENSE.yaml list per-file free licences; other data CC BY-SA 4.0. Engine / build Custom (OpenGL) Use as Study Repo https://github.com/naikari/naikari Checked 2026-10-09
Stella-Dei (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	mixed	45%	Study	46	2024-11-09
Note GPL-3.0 confirmed; music credits list Kevin MacLeod and Musopen tracks under CC BY 3.0, but one track has no licence. Asset license assets/CREDITS.txt: CC BY 3.0 music (Kevin MacLeod, Natalia Ensemble); 'Curiosity' by Aipasikon has no stated licence. Engine / build Zig / zig build Use as Study Repo https://github.com/zenith391/Stella-Dei Checked 2026-10-09
Zombie-Annihilator (opens in a new tab)	Verified	Top-down shooter	GPL-3.0 (copyleft)	unknown	45%	Study	14	2025-12-15
Note GPL-3.0 confirmed for this small OpenGL student game; resources have no separate licence. Asset license No separate asset licence for resources/. Engine / build Custom (C++/OpenGL) / CMake Use as Study Repo https://github.com/szymmirr/Zombie-Annihilator Checked 2026-10-09
minetest_game (opens in a new tab)	Verified	Sandbox	LGPL-2.1 (copyleft)	clear	40%	Study	1.6k	2026-08-16
Note Lua code is LGPL-2.1 and textures and sounds are CC BY-SA 3.0 (some mods credit other authors); it runs only inside the Luanti engine. Asset license LICENSE.txt: media CC BY-SA 3.0; per-mod README files list other authors and licences. Engine / build Luanti Use as Study Repo https://github.com/luanti-org/minetest_game Checked 2026-10-09
MultiCraft (opens in a new tab)	Verified	Sandbox	LGPL-3.0-or-later (copyleft)	clear	40%	Study	162	2026-10-07
Note Engine code is LGPL-3.0-or-later and textures and sounds are CC BY-SA 3.0 / 4.0; it is a Luanti-based fork with only experimental web paths. Asset license LICENSE.txt: textures and sounds CC BY-SA 3.0 (Zughy and MultiCraft team), newer content CC BY-SA 4.0. Engine / build Luanti Use as Study Repo https://github.com/MultiCraft/MultiCraft Checked 2026-10-09
hate (opens in a new tab)	Verified	3D shooter	GPL-3.0 (copyleft)	unknown	40%	Study	82	2026-07-22
Note GPL-3.0 confirmed; the content folder of maps, models and sounds has no separate licence. Asset license No separate asset licence for content/; presumed GPL-3.0. Engine / build Custom (C++/OpenGL) Use as Study Repo https://github.com/hatearena/hate Checked 2026-10-09
ActionRPG (opens in a new tab)	Verified	Action RPG	MIT (permissive)	unknown	40%	Study	30	2026-08-31
Note MIT (LICENSE). Code license confirmed; asset provenance not audited. Asset license No asset license stated Engine / build Unreal / Unreal project Use as Study Repo https://github.com/mirchd/ActionRPG Checked 2026-10-09
CavEX (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	mixed	35%	Study	384	2025-12-15
Note GPL-3.0 confirmed; textures are the Isabella II pack (CC BY 3.0) and the font is CC BY 4.0, but the Wii controller icons have unknown licence. Asset license Isabella II textures CC BY 3.0, font CC BY 4.0, pointer GPL-2.0, Wii controller icons licence unknown (assets/README.md). Engine / build Custom (OpenGL) Use as Study Repo https://github.com/xtreme8000/CavEX Checked 2026-10-09
Team-Capture (opens in a new tab)	Verified	3D shooter	AGPL-3.0 (copyleft)	mixed	35%	Study	187	2026-05-19
Note AGPL-3.0 confirmed; game assets live in a separate GitLab repo and third-party assets are listed in thirdpartylegalassets.txt. Asset license Own assets in separate Team-Capture-Assets repo; third-party fonts, shaders and models listed with MIT and similar notices. Engine / build Unity / Unity project Use as Study Repo https://github.com/Voltstro-Studios/Team-Capture Checked 2026-10-09
VoxeLibre (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	clear	35%	Study	168	2026-09-18
Note GPL-3.0-or-later confirmed; LEGAL.md says no non-free media, with textures mostly from Pixel Perfection (CC BY-SA 4.0); it needs the Luanti engine to run. Asset license Textures mostly Pixel Perfection CC BY-SA 4.0, some CC BY 4.0; LEGAL.md states no non-free licences. Engine / build Luanti Use as Study Repo https://github.com/VoxeLibre/VoxeLibre Checked 2026-10-09
astro-loop (opens in a new tab)	Verified	2D shooter	GPL-3.0 (copyleft)	clear	35%	Study	132	2026-10-01
Note GPL-3.0-only confirmed; bundled fonts are OFL, but it is a native Android app that would need a rewrite for the web. Asset license Exo 2 and Orbitron fonts under SIL OFL 1.1 (THIRD_PARTY_NOTICES.md); other art presumed GPL-3.0. Engine / build Android / Gradle Use as Study Repo https://github.com/PubDeer/astro-loop Checked 2026-10-09
craftium (opens in a new tab)	Verified	Sandbox	LGPL-2.1-or-later (copyleft)	clear	30%	Study	214	2026-02-17
Note Luanti fork for reinforcement learning: code is LGPL-2.1-or-later and built-in textures and sounds are CC BY-SA 3.0. Asset license LICENSE.txt: Luanti textures and sounds CC BY-SA 3.0, a few files Apache-2.0. Engine / build Luanti Use as Study Repo https://github.com/mikelma/craftium Checked 2026-10-09
voxelfield (opens in a new tab)	Verified	3D shooter	GPL-3.0 (copyleft)	unknown	30%	Study	62	2026-05-12
Note GPL-3.0 confirmed for this Unity shooter; models and textures in the repo have no separate licence. Asset license No separate asset licence for Assets/Models/Substance folders. Engine / build Unity / Unity project Use as Study Repo https://github.com/qhdwight/voxelfield Checked 2026-10-09
ourCraft (opens in a new tab)	Verified	Sandbox	MIT (permissive)	unknown	25%	Study	510	2026-06-17
Note MIT confirmed for the code; textures, music, sounds and skins in resources/ have no separate licence. Asset license No separate asset licence for resources/ (textures, music, sounds, skins). Engine / build Custom (OpenGL) Use as Study Repo https://github.com/meemknight/ourCraft Checked 2026-10-09
Cubyz (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	unknown	15%	Study	3.7k	2026-10-08
Note GPL-3.0 confirmed; textures and sounds have no separate licence, and the Zig plus modern OpenGL engine has no web target. Asset license No separate asset licence; assets/cubyz presumed under GPL-3.0. Engine / build Zig / zig build Use as Study Repo https://github.com/PixelGuys/Cubyz Checked 2026-10-09
chunkstories (opens in a new tab)	Verified	Sandbox	LGPL-3.0 (copyleft)	unknown	15%	Study	223	2025-04-21
Note The engine implementation is LGPL-3.0; game content ships as separate mods, and the current master is heavy work in progress. Asset license Content lives in separate mod repos with no licence stated here. Engine / build Kotlin / Gradle Use as Study Repo https://github.com/Hugobros3/chunkstories Checked 2026-10-09
veloren (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	mixed	10%	Study	7.6k	2026-10-08
Note GPL-3.0 confirmed; assets default to GPL-3.0 with per-file CC exceptions in assets/credits.ron, but a browser port of this large Rust/wgpu game is unrealistic. Asset license Assets GPL-3.0 unless credits.ron lists another licence (several CC BY / CC BY-SA entries). Engine / build Rust / Cargo Use as Study Repo https://github.com/veloren/veloren Checked 2026-10-09
rigs-of-rods (opens in a new tab)	Verified	Sandbox	GPL-3.0 (copyleft)	mixed	5%	Study	1.3k	2026-10-09
Note GPL-3.0-or-later confirmed; the base game ships little content and most vehicles and maps are community mods with their own licences. Asset license Small built-in content set under GPL; most vehicles and terrains are separately licensed community mods. Engine / build C++ Use as Study Repo https://github.com/RigsOfRods/rigs-of-rods Checked 2026-10-09
DungeonGenerator (opens in a new tab)	Verified	Roguelike	GPL-3.0 (copyleft)	unknown	3%	Study	154	2026-09-05
Note GPL-3.0 confirmed for this Unreal Engine plugin (a paid Fab edition exists separately); there is no web target. Asset license Sample maps and meshes in Content/ with no separate licence; presumed GPL-3.0. Engine / build Unreal / Unreal project Use as Study Repo https://github.com/shun126/DungeonGenerator Checked 2026-10-09
Godot demo projects (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	clear	~100%	Foundation	–	–
Note Clean starting points that export to HTML5. Asset license Mostly CC0 / MIT Engine / build Godot Use as Foundation Repo https://github.com/godotengine/godot-demo-projects
Kenney asset packs (opens in a new tab)	Unverified	Assets (2D / 3D / audio)	n/a (permissive)	clear	~100%	Foundation	–	–
Note Safe art for prototypes. Asset license CC0 Engine / build n/a Use as Foundation Repo https://kenney.nl/assets
OpenGameArt (opens in a new tab)	Unverified	Assets (2D / 3D / audio)	n/a (unclear / restricted)	mixed	~100%	Foundation	–	–
Note Check the license of each asset. Asset license Mixed per asset Engine / build n/a Use as Foundation Repo https://opengameart.org
Phaser examples (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	mixed	~100%	Foundation	–	–
Note Browser 2D snippets. Asset license Mixed per example Engine / build Phaser Use as Foundation Repo https://phaser.io/examples
Three.js examples (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	mixed	~100%	Foundation	–	–
Note Browser 3D snippets. Asset license Mixed per example Engine / build Three.js Use as Foundation Repo https://threejs.org/examples/
Freedoom (opens in a new tab)	Unverified	3D shooter	n/a (content) (permissive)	clear	~80%	Study / Foundation	–	–
Note Free replacement data for Doom engines. Asset license BSD 3-clause Engine / build Game data (WAD) for Doom engines Use as Study / Foundation Repo https://freedoom.github.io
raylib examples (opens in a new tab)	Unverified	Engine / starter kit	zlib (permissive)	mixed	~80%	Foundation	–	–
Note Small C starter games and samples. Asset license Mixed per example Engine / build raylib / C Use as Foundation Repo https://www.raylib.com/examples.html
SDL2 (opens in a new tab)	Unverified	Engine / starter kit	zlib (permissive)	clear	~80%	Foundation	–	–
Note Platform layer used by many references. Asset license n/a Engine / build SDL2 / C Use as Foundation Repo https://libsdl.org
Armagetron Advanced (opens in a new tab)	Unverified	Arcade	GPLv2+ (copyleft)	mixed	~60%	Study	–	–
Note Light-cycle game with network play. Asset license Mixed Engine / build C++ Use as Study Repo https://www.armagetronad.org
AssaultCube (opens in a new tab)	Unverified	3D shooter	Custom (zlib-like) (unclear / restricted)	mixed	~60%	Study	–	–
Note Compact realistic FPS from the Cube lineage. Asset license Mixed Engine / build C++ / Cube engine Use as Study Repo https://assault.cubers.net
Brogue CE (opens in a new tab)	Unverified	Roguelike	AGPLv3 (copyleft)	unknown	~60%	Study	–	–
Note Tight, readable roguelike design. Asset license Unclear Engine / build C Use as Study Repo https://github.com/tmewett/BrogueCE
Cube 2: Sauerbraten (opens in a new tab)	Unverified	3D shooter	zlib (permissive)	mixed	~60%	Study / Foundation	–	–
Note Small readable engine with in-game level editor. Cube lineage. Asset license Mixed per asset Engine / build C++ / SDL Use as Study / Foundation Repo https://sauerbraten.org
DDNet (opens in a new tab)	Unverified	2D shooter	zlib-style (permissive)	mixed	~60%	Study / Foundation	–	–
Note Teeworlds fork with cooperative maps. Asset license CC-BY-SA mix Engine / build C++ Use as Study / Foundation Repo https://ddnet.org
Endless Sky (opens in a new tab)	Unverified	Action RPG	GPLv3 (copyleft)	mixed	~60%	Study	–	–
Note Top-down space trading and combat. Asset license Mixed CC-BY-SA / CC0 Engine / build C++ / SDL Use as Study Repo https://endless-sky.github.io
Freeciv (opens in a new tab)	Unverified	Strategy	GPLv2+ (copyleft)	mixed	~60%	Study	–	–
Note Turn-based strategy with web client. Asset license Mixed Engine / build C Use as Study Repo https://www.freeciv.org
Mindustry (opens in a new tab)	Unverified	Strategy	GPLv3 (copyleft)	clear	~60%	Study	–	–
Note Factory/tower-defense hybrid. Asset license GPLv3 Engine / build Java / libGDX Use as Study Repo https://github.com/Anuken/Mindustry
OpenArena (opens in a new tab)	Unverified	3D shooter	GPLv2 (copyleft)	clear	~60%	Study	–	–
Note Quake III-style game with replacement assets. Asset license GPLv2 Engine / build C / ioquake3 Use as Study Repo https://openarena.ws
Red Eclipse (opens in a new tab)	Unverified	3D shooter	zlib (permissive)	mixed	~60%	Study / Foundation	–	–
Note Parkour-style arena shooter on the Cube 2 engine. Asset license Mostly CC-BY-SA, mixed Engine / build C++ / SDL (Cube 2 fork) Use as Study / Foundation Repo https://redeclipse.net
Shattered Pixel Dungeon (opens in a new tab)	Unverified	Roguelike	GPLv3 (copyleft)	mixed	~60%	Study	–	–
Note Polished mobile-style roguelike. Asset license Mixed Engine / build Java / libGDX Use as Study Repo https://github.com/00-Evan/shattered-pixel-dungeon
SuperTux (opens in a new tab)	Unverified	Platformer	GPLv3 (copyleft)	clear	~60%	Study	–	–
Note Level format and enemy behaviors. Asset license CC-BY-SA / GPL Engine / build C++ / SDL Use as Study Repo https://www.supertux.org
Battle for Wesnoth (opens in a new tab)	Unverified	Strategy	GPLv2+ (copyleft)	clear	~40%	Study	–	–
Note Data-driven campaigns and units. Asset license GPLv2+ Engine / build C++ + Lua scripting Use as Study Repo https://www.wesnoth.org
Cataclysm: Dark Days Ahead (opens in a new tab)	Unverified	Roguelike	CC-BY-SA 3.0 (copyleft)	clear	~40%	Study	–	–
Note Huge content system and data-driven mods. Asset license CC-BY-SA 3.0 Engine / build C++ / curses+SDL Use as Study Repo https://cataclysmdda.org
Dungeon Crawl Stone Soup (opens in a new tab)	Unverified	Roguelike	GPLv2+ (copyleft)	mixed	~40%	Study	–	–
Note Mature balance and content data. Asset license Mixed (CC0 tiles) Engine / build C++ Use as Study Repo https://crawl.develz.org
Hedgewars (opens in a new tab)	Unverified	Artillery	GPLv2 (copyleft)	mixed	~40%	Study	–	–
Note Weapons and physics tuning. Asset license Mixed free Engine / build Haskell / C++ / Lua Use as Study Repo https://hedgewars.org
OpenRA (opens in a new tab)	Unverified	Strategy	GPLv3 (copyleft)	mixed	~40%	Study	–	–
Note RTS engine with a mod system. .NET build. Asset license Mixed Engine / build C# / .NET Use as Study Repo https://www.openra.net
Tales of Maj'Eyal (opens in a new tab)	Unverified	Roguelike	GPLv3 (copyleft)	mixed	~40%	Study	–	–
Note Deep RPG systems; moddable. Asset license Mixed Engine / build Lua / T-Engine Use as Study Repo https://te4.org
0 A.D. (opens in a new tab)	Unverified	Strategy	GPLv2+ (copyleft)	clear	~20%	Study	–	–
Note Large RTS; strong modding data. Asset license CC-BY-SA Engine / build C++ / JS scripting Use as Study Repo https://play0ad.com
Pioneer (opens in a new tab)	Unverified	Simulation	GPLv3 (copyleft)	mixed	~20%	Study	–	–
Note Open-world space game. Asset license Mixed Engine / build C++ / Lua Use as Study Repo https://pioneerspacesim.net
SuperTuxKart (opens in a new tab)	Unverified	Racing	GPLv3 (copyleft)	mixed	~20%	Study	–	–
Note Kart racer with large asset set. Asset license Mixed free Engine / build C++ Use as Study Repo https://supertuxkart.net
Chocolate Doom (opens in a new tab)	Unverified	3D shooter	GPLv2 (copyleft)	proprietary	~80%	Study	–	–
Note Faithful, readable Doom source port. Asset license Original Doom data is proprietary Engine / build C / SDL Use as Study Repo https://www.chocolate-doom.org
ioquake3 (opens in a new tab)	Unverified	3D shooter	GPLv2 (copyleft)	proprietary	~60%	Study	–	–
Note Code reference for Quake III. Never ship original Q3 assets. Asset license Original Quake III data is proprietary Engine / build C / own engine Use as Study Repo https://ioquake3.org
Odamex (opens in a new tab)	Unverified	3D shooter	GPLv2 (copyleft)	proprietary	~60%	Study	–	–
Note Multiplayer Doom port; netcode reference. Asset license Original Doom data is proprietary Engine / build C++ / SDL Use as Study Repo https://odamex.net
OpenXcom (opens in a new tab)	Unverified	Strategy	GPLv3 (copyleft)	proprietary	~60%	Study	–	–
Note Tactical game engine reimplementation. Asset license Needs original X-COM data Engine / build C++ / SDL Use as Study Repo https://openxcom.org
Quakespasm (opens in a new tab)	Unverified	3D shooter	GPLv2 (copyleft)	proprietary	~60%	Study	–	–
Note Clean Quake 1 engine port. Asset license Original Quake data is proprietary Engine / build C / SDL Use as Study Repo https://quakespasm.sourceforge.net
Yamagi Quake II (opens in a new tab)	Unverified	3D shooter	GPLv2 (copyleft)	proprietary	~60%	Study	–	–
Note Code reference for Quake II. Asset license Original Quake II data is proprietary Engine / build C / SDL Use as Study Repo https://www.yamagi.org/quake2/
EDuke32 (opens in a new tab)	Unverified	3D shooter	GPL (build engine license) (copyleft)	proprietary	~40%	Study	–	–
Note Build-engine source port. Asset license Original Duke3D data is proprietary Engine / build C / SDL Use as Study Repo https://eduke32.com
GZDoom (opens in a new tab)	Unverified	3D shooter	GPL-style (custom terms) (copyleft)	proprietary	~40%	Study	–	–
Note Code reference for a modern Doom source port with scripting. Asset license Original Doom data is proprietary Engine / build C++ / OpenGL Use as Study Repo https://zdoom.org
OpenMW (opens in a new tab)	Unverified	Action RPG	GPLv3 (copyleft)	proprietary	~20%	Study	–	–
Note Engine reimplementation; scripting reference. Asset license Needs original Morrowind data Engine / build C++ Use as Study Repo https://openmw.org
actionhero (opens in a new tab)	Unverified	Engine / starter kit	Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-07-23
Note The reusable, scalable, and quick node.js API server for stateless and stateful applications Asset license Not listed Engine / build JS (npm) HTML5/JS Use as Study / Foundation Repo git://github.com/actionhero/actionhero
antha (opens in a new tab)	Unverified	Engine / starter kit	(MIT OR CC0-1.0) (permissive)	unknown	~80%	Study / Foundation	–	2026-09-28
Note A simple-to-use all-in-one Antha engine variant with default mods. Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/electrovir/antha
box3d-wasm (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-07-02
Note Box3D, Erin Catto's 3D physics engine, compiled to WebAssembly with SIMD and optional wasm threads. Isomorphic: works in browsers and Node.js, auto-detecting th Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/monteslu/box3d-wasm
claude-tetris (opens in a new tab)	Unverified	Puzzle	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Play Tetris in a split pane beside Claude Code — auto-pauses when Claude is done, resumes on your next prompt. Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/philppplik/claude-tetris
cli-legend (opens in a new tab)	Unverified	Roguelike	MIT (permissive)	unknown	~80%	Study / Foundation	–	2025-03-10
Note "A fun command-line rogurelike dungeon game" Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/SamparkBhol/roguemaze
crashcat (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-07-06
Note a 3d physics library for games and simulations Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/isaac-mason/crashcat
create-pixifact (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-09-30
Note 创建 Pixifact 游戏项目。 Asset license Not listed Engine / build JS (npm) PixiJS Use as Study / Foundation Repo https://github.com/hxg2050/pixifact
create-playcanvas (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-10-08
Note Scaffold a PlayCanvas project Asset license Not listed Engine / build JS (npm) WebGL Use as Study / Foundation Repo https://github.com/playcanvas/create-playcanvas
create-vimp-game (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-10-07
Note Scaffolder for VIMP game plugins Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo ssh://git@github.com/lgick/vimp
dsh-agentnoodle (opens in a new tab)	Unverified	RPG	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-08-31
Note 可扩展的 AI 群像聊天游戏框架（DeepSeek Harness 插件）：输入一个行动，多个 NPC 各自回应，带头像插图；世界、地点、NPC 与功能扩展都可在对话里让 agent 直接添加修改，无需写代码。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/bigharm/dsh-agentnoodle
dsh-running-liang (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-08-21
Note A Chrome dino-run style mini-game for DeepSeek Harness Web: play while waiting for the agent, score from 梁子 to 梁圣. / 为 DeepSeek Harness Web 打造的等待小游戏：agent 回复时玩一 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/skiuniverse/dsh-running-liang
emeraldengine (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-09-19
Note 2D graphics library for Web Asset license Not listed Engine / build JS (npm) WebGL Use as Study / Foundation Repo https://github.com/vahan-gev/emeraldengine
enable3d (opens in a new tab)	Unverified	Engine / starter kit	LGPL-3.0 (permissive)	unknown	~80%	Study / Foundation	–	2025-03-08
Note 3D Framework for Web, Mobile and PC Asset license Not listed Engine / build JS (npm) Three.js Use as Study / Foundation Repo https://github.com/enable3d/enable3d
excalibur (opens in a new tab)	Unverified	Engine / starter kit	BSD-2-Clause (permissive)	unknown	~80%	Study / Foundation	–	2025-12-23
Note Excalibur.js is a simple JavaScript game engine with TypeScript bindings for making 2D games in HTML5 Canvas. Our mission is to make web game development as sim Asset license Not listed Engine / build JS (npm) Canvas Use as Study / Foundation Repo git://github.com/excaliburjs/Excalibur
fondue-city-mcp (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-09-24
Note MCP server for Fondue City — let any MCP-capable agent play the persistent AI-run restaurant world at https://fondue.city. Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/Edward-CH-Wang/The-Restaurant-Universe
gamedig (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-05-26
Note Query for the status of any game server in Node.JS Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/gamedig/node-gamedig
iris-ecs (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-09-06
Note Entity Component System implementation for TypeScript Asset license Not listed Engine / build JS (npm) HTML5/JS Use as Study / Foundation Repo https://github.com/r04423/iris
jclic (opens in a new tab)	Unverified	Puzzle	EUPL-1.2 (copyleft)	unknown	~80%	Study	–	2026-06-11
Note HTML5 player for JClic activities Asset license Not listed Engine / build JS (npm) HTML5/JS Use as Study Repo https://github.com/projectestac/jclic.js
kahoot.js-latest (opens in a new tab)	Unverified	Engine / starter kit	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-04-29
Note Answer, Join Kahoot Quizzes with nodejs Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo git://github.com/LimitFinity/kahoot.js-latest
koishi-plugin-bull-card (opens in a new tab)	Unverified	Card / board	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Koishi 插件：斗牛牌局，支持娱乐比牌与金币下注两种模式。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-bull-card
koishi-plugin-card-21-game (opens in a new tab)	Unverified	Card / board	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Koishi 插件：21 点，支持玩家对战、庄家模式与货币下注。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-card-21-game
koishi-plugin-ciyi (opens in a new tab)	Unverified	Engine / starter kit	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-09-26
Note Koishi 群聊猜词：每天一个两字词，支持续猜和排行榜。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-ciyi
koishi-plugin-lom-bridge (opens in a new tab)	Unverified	RPG	MIT (permissive)	unknown	~80%	Study / Foundation	–	2026-10-06
Note 《诡秘之主：群星低语》同人文字游戏 —— 内核一起打包，装完就能玩 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/Juenia/lomgame
koishi-plugin-mcdle (opens in a new tab)	Unverified	Engine / starter kit	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Koishi 插件：玩《我的世界》猜谜，凭属性提示从生物、物品、方块中锁定唯一答案。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-mcdle
koishi-plugin-number-merge-game (opens in a new tab)	Unverified	Engine / starter kit	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Koishi 插件：2048 数字合并小游戏，支持同频道对局、生涯战绩与排行榜。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-number-merge-game
koishi-plugin-see-color (opens in a new tab)	Unverified	Engine / starter kit	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Koishi 插件：在群里玩找异色块的拼眼力小游戏，支持积分排行。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-see-color
koishi-plugin-wordle-game (opens in a new tab)	Unverified	Engine / starter kit	MIT OR Apache-2.0 (permissive)	unknown	~80%	Study / Foundation	–	2026-10-02
Note Koishi 插件：猜词游戏，支持单词、成语、数字与方程式等多种模式。 Asset license Not listed Engine / build JS (npm) Use as Study / Foundation Repo https://github.com/araea/koishi-plugin-wordle-game
U3-SDK (opens in a new tab)	Problem	Sandbox	Proprietary (U3 SDK licence) (unclear / restricted)	proprietary	5%	Study	3.9k	2026-09-21
Note This is Smartly Dressed Games' proprietary U3 SDK licence, limited to non-commercial modding, not an open-source licence. Asset license All rights reserved; SDK assets usable only under the U3 SDK License Agreement for non-commercial mods. Engine / build C# / dotnet Use as Study Repo https://github.com/SmartlyDressedGames/U3-SDK Checked 2026-10-09
Godot-GameTemplate (opens in a new tab)	Problem	Top-down shooter	MIT (permissive)	mixed	85%	Study	1.7k	2026-06-18
Note Code MIT (LICENSE). README adds its own asset terms (no resale as your own creation); not a standard license. Asset license Custom 'free to use, not to sell as your own' wording Engine / build Godot / Godot project Use as Study Repo https://github.com/nezvers/Godot-GameTemplate Checked 2026-10-09
opensoldat (opens in a new tab)	Problem	2D shooter	MIT (permissive)	unknown	35%	Study	1.5k	2026-09-26
Note Code MIT (LICENSE.md). Code MIT; assets come from a separate download with no license found in the repo. Study only until checked. Asset license Assets downloaded separately, license not found Engine / build Custom (Pascal) Use as Study Repo https://github.com/opensoldat/opensoldat Checked 2026-10-09
doukutsu-rs (opens in a new tab)	Problem	Platformer	MIT (permissive)	proprietary	70%	Study	1.3k	2026-09-04
Note Code MIT (LICENSE). Engine reimplementation, MIT code, but the game data is not redistributable. Study only. Asset license Needs original Cave Story data Engine / build Custom (Rust) / Cargo Use as Study Repo https://github.com/doukutsu-rs/doukutsu-rs Checked 2026-10-09
drl (opens in a new tab)	Problem	Roguelike	GPL-2.0 (copyleft)	mixed	20%	Study	1.2k	2026-10-09
Note Code is GPL-2.0 and art is CC BY-SA 4.0, but music and sound must be copied from the binary release with no stated licence. Asset license Art and sprites CC BY-SA 4.0 (Derek Yu, Lukasz Sliwinski); music and sound effects not in repo and unlicensed in the source release. Engine / build Custom (Free Pascal) Use as Study Repo https://github.com/chaosforgeorg/drl Checked 2026-10-09
Expo-Crossy-Road (opens in a new tab)	Problem	Engine / starter kit	MIT (permissive)	proprietary	88%	Study	1.2k	2026-03-26
Note Code MIT (LICENSE). README says it uses copyrighted work under a fair-use/educational claim. Study only. Asset license Copyrighted Crossy Road work, fair-use claim Engine / build Three.js / npm Use as Study Repo https://github.com/EvanBacon/Expo-Crossy-Road Checked 2026-10-09
godot-4-3d-third-person-controller (opens in a new tab)	Problem	Engine / starter kit	MIT (permissive)	proprietary	90%	Study	1.0k	2026-08-15
Note Code is MIT, but all textures and 3D models are CC BY-NC-SA 4.0, which forbids commercial use. Asset license Art assets (textures, 3D models) CC BY-NC-SA 4.0, non-commercial. Engine / build Godot / Godot project Use as Study Repo https://github.com/gdquest-demos/godot-4-3d-third-person-controller Checked 2026-10-09
TetraForce (opens in a new tab)	Problem	Action RPG	MIT (permissive)	proprietary	85%	Study	667	2026-09-05
Note Code MIT (LICENSE). Zelda-style fan game; Nintendo-derived content likely. Study only. Asset license Zelda fan-game content Engine / build Godot / Godot project Use as Study Repo https://github.com/loudsmilestudios/TetraForce Checked 2026-10-09
ZQuestClassic (opens in a new tab)	Problem	Action RPG	GPL-3.0 (copyleft)	proprietary	90%	Study	558	2026-10-09
Note Code is GPL-3.0 and an experimental web version exists, but the bundled classic quest and tileset are built on Nintendo Zelda graphics. Asset license Classic tileset and quests use Nintendo-derived Zelda sprites and music; other resources GPL-3.0. Engine / build Custom (C++/Allegro) / CMake Use as Study Repo https://github.com/ZQuestClassic/ZQuestClassic Checked 2026-10-09
sandboxels (opens in a new tab)	Problem	Sandbox	R74n Content License (all rights reserved) (unclear / restricted)	proprietary	98%	Study	465	2026-06-03
Note The custom R74n Content License is all rights reserved, bans commercial use and lets the owner demand removal at any time. Asset license Same R74n Content License covers code, images and audio. Engine / build JavaScript / npm Use as Study Repo https://github.com/R74nCom/sandboxels Checked 2026-10-09
bull-rush (opens in a new tab)	Problem	Engine / starter kit	MIT (permissive)	proprietary	88%	Study	352	2026-07-20
Note Code MIT (LICENSE). Its own ASSET_PROVENANCE.md lists unlicensed music and undocumented images. Code only. Asset license Unlicensed music and images Engine / build Three.js / npm Use as Study Repo https://github.com/winsznx/bull-rush Checked 2026-10-09
Moondust-Project (opens in a new tab)	Problem	Engine / starter kit	GPL-3.0 (copyleft)	proprietary	45%	Study	281	2026-10-05
Note GPL-3.0 confirmed for code, but the usual playable content packs reuse Nintendo Mario graphics, so the assets are not cleanly licensed. Asset license Repo has themes and configs; playable config packs (SMBX integration) are distributed separately and are built on Nintendo-derived sprites. Engine / build SDL2 / CMake Use as Study Repo https://github.com/WohlSoft/Moondust-Project Checked 2026-10-09
pebble (opens in a new tab)	Problem	Sandbox	MIT (permissive)	proprietary	10%	Study	235	2026-07-24
Note Code is MIT, but it bundles the third-party Faithful 32x Minecraft texture pack and is a native macOS Swift and Metal app. Asset license Faithful 32x textures (third-party, Minecraft-derived, own terms); all audio synthesized in code. Engine / build Swift Use as Study Repo https://github.com/thebriangao/pebble Checked 2026-10-09
sour (opens in a new tab)	Problem	3D shooter	MIT (permissive)	mixed	45%	Study	213	2026-06-05
Note Code MIT (LICENSE). ~1 GB of Cube 2 assets with varied per-file licenses; repo ships a subset. Needs per-asset review. Asset license Sauerbraten assets with mixed licenses Engine / build Cube 2 (Sauerbraten) Use as Study Repo https://github.com/cfoust/sour Checked 2026-10-09
OpenTournament (opens in a new tab)	Problem	3D shooter	All rights reserved (unclear / restricted)	proprietary	3%	Study	208	2026-07-14
Note All rights reserved: source is provided only for developing the official Open Tournament, and assets are used with permission exclusively for it. Asset license Assets licensed exclusively to Open Tournament; Credits.txt includes CC BY-NC 3.0 sounds. Engine / build Unreal Use as Study Repo https://github.com/OpenTournament/OpenTournament Checked 2026-10-09
forsaken (opens in a new tab)	Problem	3D shooter	GPL-2.0 (copyleft)	proprietary	40%	Study	180	2025-10-01
Note New code is GPL-2.0, but the LICENSE says the original Forsaken code is abandonware, and the game data comes from the original commercial release. Asset license Game data comes from the original commercial Forsaken release and has no free licence. Engine / build Custom (C/OpenGL) Use as Study Repo https://github.com/ForsakenX/forsaken Checked 2026-10-09
GnollHack (opens in a new tab)	Problem	Roguelike	NetHack General Public License (copyleft)	unknown	30%	Study	161	2026-10-09
Note Code is under the NetHack General Public License, but the GnollHack art, music and voiceovers carry no stated licence. Asset license No licence stated for the animated graphics, music and voiceovers; not covered in LICENSE.md. Engine / build Custom (C) / Make Use as Study Repo https://github.com/hyvanmielenpelit/GnollHack Checked 2026-10-09
frontier-station-14 (opens in a new tab)	Problem	Sandbox	AGPL-3.0 (copyleft)	mixed	5%	Study	155	2026-10-08
Note Code is AGPL-3.0 with MIT parts, but some assets are CC BY-NC-SA (non-commercial) alongside the usual CC BY-SA 3.0. Asset license Most assets CC BY-SA 3.0 per metadata files; some CC BY-NC-SA 3.0 non-commercial assets must be removed for commercial use. Engine / build C# / dotnet Use as Study Repo https://github.com/new-frontiers-14/frontier-station-14 Checked 2026-10-09
tails-adventure (opens in a new tab)	Problem	Platformer	GPL-3.0 (copyleft)	proprietary	70%	Study	150	2026-08-26
Note Code is GPL-3.0, but this is a remake of Sega's Tails Adventure and its sprites and music are Sega-derived. Asset license Game assets recreate Sega's Game Gear Tails Adventure; no free licence for them is stated. Engine / build Custom (C++) / CMake Use as Study Repo https://github.com/mechakotik/tails-adventure Checked 2026-10-09
eagler-touhou (opens in a new tab)	Problem	2D shooter	GPL-3.0 (copyleft)	proprietary	85%	Study	148	2026-10-09
Note Launcher code is GPL-3.0-or-later, but it exists to run ZUN's proprietary Touhou games, whose data each player must supply. Asset license Site UI fonts OFL; all game data, music and title art come from the user's own copies of the proprietary Touhou games and are not in the repo. Engine / build Custom (JS) / npm Use as Study Repo https://github.com/YomotsuHisami/eagler-touhou Checked 2026-10-09
madness-interactive-reloaded (opens in a new tab)	Problem	Sandbox	GPL-3.0 (copyleft)	unknown	15%	Study	146	2025-03-21
Note Code is GPL-3.0, but the game is based on the Madness Combat franchise and gives no licence for its art and audio. Asset license No asset licence stated; characters and art belong to the Madness Combat franchise. Engine / build C# / dotnet Use as Study Repo https://github.com/studio-minus/madness-interactive-reloaded Checked 2026-10-09
celeste (opens in a new tab)	Problem	Platformer	MIT (permissive)	proprietary	65%	Study	145	2024-12-25
Note Code MIT (LICENSE). Recreation of Celeste Classic; game design/art are third-party IP. Study only. Asset license Celeste Classic IP Engine / build Bevy / Cargo Use as Study Repo https://github.com/NightsWatchGames/celeste Checked 2026-10-09
Polymer (opens in a new tab)	Problem	Sandbox	MIT (permissive)	proprietary	35%	Study	137	2025-09-04
Note Code MIT (LICENSE). Minecraft client; downloads original Mojang assets at first run. Study only. Asset license Downloads Minecraft assets Engine / build Custom (Vulkan) Use as Study Repo https://github.com/atxi/Polymer Checked 2026-10-09
Super-Mario-Phaser (opens in a new tab)	Problem	Platformer	MIT (permissive)	proprietary	88%	Study	122	2026-09-19
Note Code MIT (LICENSE). Super Mario clone; characters/art are Nintendo IP regardless of the MIT code. Study only. Asset license Nintendo Mario IP Engine / build Phaser / npm Use as Study Repo https://github.com/pablogozalvez/Super-Mario-Phaser Checked 2026-10-09
danmokou (opens in a new tab)	Problem	2D shooter	MIT (permissive)	mixed	20%	Study	114	2025-01-20
Note Engine code is MIT, but its own licence file says many non-code assets (such as those by DD and dairi) are not allowed for commercial use. Asset license Mixed: Kenney CC0, Bagoum SFX CC BY 4.0, some Taisei resources, plus Pixiv and other art not licensed for commercial use. Engine / build Unity / Unity project Use as Study Repo https://github.com/Bagoum/danmokou Checked 2026-10-09
3D-Survival-Game-Unity (opens in a new tab)	Problem	Sandbox	MIT (permissive)	mixed	68%	Study	95	2026-06-15
Note Code MIT (LICENSE). Kenney assets are CC0, but Lmhpoly Low Poly Pack is a store asset that likely cannot be redistributed. Asset license Kenney CC0 + Lmhpoly store assets Engine / build Unity / dotnet Use as Study Repo https://github.com/sevketbinali/3D-Survival-Game-Unity Checked 2026-10-09
friendlyfiregame (opens in a new tab)	Problem	Platformer	None (personal use only) (unclear / restricted)	proprietary	99%	Study	90	2026-09-01
Note No licence has been chosen yet; the LICENSE file only allows personal use and forbids repackaging. Asset license Artwork and soundtrack are covered by the same personal-use-only notice. Engine / build Custom (TypeScript) / npm Use as Study Repo https://github.com/friendlyfiregame/friendlyfiregame Checked 2026-10-09
warbell (opens in a new tab)	Problem	Action RPG	PolyForm Noncommercial 1.0.0 (unclear / restricted)	mixed	60%	Study	90	2026-10-09
Note PolyForm Noncommercial 1.0.0 is source-available, not open source, and reserves all commercial use. Asset license Assets carry their own terms: game-icons.net CC BY 3.0, Cinzel and EB Garamond fonts OFL, other audio and art may be separately licensed. Engine / build Bevy / Cargo Use as Study Repo https://github.com/miskibin/warbell Checked 2026-10-09
backrooms-noclip (opens in a new tab)	Problem	Roguelike	PolyForm Noncommercial 1.0.0 (unclear / restricted)	proprietary	95%	Study	89	2026-07-17
Note Code and game are under PolyForm Noncommercial 1.0.0, so commercial use is not allowed; lore text is CC BY-SA 3.0 from the Backrooms wiki. Asset license Original sprites under the same non-commercial licence; wiki-derived lore CC BY-SA 3.0; fonts OFL; Three.js MIT. Engine / build Custom (JS) / npm Use as Study Repo https://github.com/AgenteMaxo/backrooms-noclip Checked 2026-10-09
tomenet (opens in a new tab)	Problem	Roguelike	Moria/Angband (non-commercial) (unclear / restricted)	unknown	25%	Study	85	2026-10-08
Note Most code is under the non-commercial Moria/Angband licence, and the networking code needs written permission for derivatives. Asset license Text and tile data fall under the same non-commercial Angband-family licence. Engine / build Custom (C) / Make Use as Study Repo https://github.com/TomenetGame/tomenet Checked 2026-10-09
binding-of-isaac-webgame (opens in a new tab)	Problem	Roguelike	MIT (permissive)	proprietary	88%	Study	75	2026-07-30
Note Code MIT (LICENSE). Binding of Isaac clone; theme/characters are third-party IP (art is code-drawn per README). Treat as study only. Asset license Isaac-derived content Engine / build Custom (JS) / npm Use as Study Repo https://github.com/liyupi/binding-of-isaac-webgame Checked 2026-10-09
zorbash (opens in a new tab)	Problem	Roguelike	GPL-3.0 (copyleft)	proprietary	40%	Study	74	2026-04-01
Note Code is GPL-3.0 (src/LICENSE), but art and sound come from paid packs such as Oryx Design Lab and itch.io creators. Asset license Sprites from Oryx, Henry Software, DeepDiveGameStudio and Pixel Overlord packs; Oryx 8-bit sounds; freesound effects; licences not stated. Engine / build Custom (C++/OpenGL) / CMake Use as Study Repo https://github.com/goblinhack/zorbash Checked 2026-10-09
Wolfenshine (opens in a new tab)	Problem	3D shooter	MIT (permissive)	proprietary	88%	Study	72	2026-08-13
Note Code MIT (LICENSE). Engine reimplementation, MIT code, but reads the original game's maps, art and sound. Study only. Asset license Needs your own Wolfenstein 3D data Engine / build Custom (Wolfenstein-style raycaster) Use as Study Repo https://github.com/deanthecoder/Wolfenshine Checked 2026-10-09
Doom2D-Forever (opens in a new tab)	Problem	Platformer	GPL-3.0 (copyleft)	proprietary	35%	Study	68	2026-09-12
Note Code is GPL-3.0, but the game resources are kept separately and derive from the 1996 Doom 2D, with no free licence stated. Asset license Game data not in this repo; Doom 2D resources have no stated free licence. Engine / build Custom (Pascal) Use as Study Repo https://github.com/Doom2D/Doom2D-Forever Checked 2026-10-09
flame_simple_platformer (opens in a new tab)	Problem	Platformer	MIT (permissive)	mixed	68%	Study	66	2025-11-21
Note Code MIT (LICENSE). README: some assets belong to others with individual terms. Code only. Asset license Some assets not owned by author Engine / build Flame / Flutter Use as Study Repo https://github.com/ufrshubham/flame_simple_platformer Checked 2026-10-09
Unangband (opens in a new tab)	Problem	Roguelike	GPL-2.0 (copyleft)	unknown	60%	Study	66	2025-05-26
Note Only UnAngband's changes are GPL; the underlying Angband 2.9.1 code still carries the non-commercial Moria/Angband licence. Asset license Text-mode game; lib data files fall under the same mixed Angband licence. Engine / build Custom (C) / Make Use as Study Repo https://github.com/DGoldDragon28/Unangband Checked 2026-10-09
Obsidian (opens in a new tab)	Problem	Action RPG	GPL-3.0 (copyleft)	proprietary	2%	Study	62	2026-10-07
Note Code is GPL-3.0, but the README says many referenced assets are not in the repo, so the Unreal project cannot be built as is. Asset license Many assets are git-ignored and missing (likely marketplace content); no asset licence. Engine / build Unreal / Unreal project Use as Study Repo https://github.com/intrxx/Obsidian Checked 2026-10-09
claude-of-duty (opens in a new tab)	Problem	3D shooter	MIT (permissive)	proprietary	88%	Study	52	2026-10-09
Note Code MIT (LICENSE). Fan project; its own ASSET_NOTICE says MIT covers code only, not derived maps/models/audio/names. Code-only study reference. Asset license Third-party game assets not licensed Engine / build Three.js / npm Use as Study Repo https://github.com/luckeyfaraday/claude-of-duty Checked 2026-10-09
javascript-delta (opens in a new tab)	Problem	2D shooter	MIT (permissive)	mixed	88%	Study	51	2025-06-01
Note Code MIT (LICENSE). README: sounds are CC-licensed from freesound.org (per-file terms, some may be BY-NC). Asset license Freesound CC sounds, per-file terms Engine / build Custom (JS) Use as Study Repo https://github.com/jakesgordon/javascript-delta Checked 2026-10-09
th06-sdl2 (opens in a new tab)	Problem	2D shooter	CC0-1.0 (permissive)	proprietary	90%	Study	47	2026-05-20
Note Code CC0-1.0 (LICENSE). Port of a copyrighted game built on a reconstruction; needs the original DAT files. CC0 label does not cover the game. Study only. Asset license Requires original Touhou 6 data files Engine / build SDL2 / CMake Use as Study Repo https://github.com/CNTianQi233/th06-sdl2 Checked 2026-10-09
godot-cmvalley (opens in a new tab)	Problem	3D shooter	MIT (permissive)	proprietary	85%	Study	44	2026-03-19
Note Code MIT (LICENSE.md). README: textures licensed under various proprietary licenses. Code only. Asset license Textures under various proprietary licenses Engine / build Godot / Godot project Use as Study Repo https://github.com/Calinou/godot-cmvalley Checked 2026-10-09
youtube-action-rpg (opens in a new tab)	Problem	Action RPG	MIT (permissive)	proprietary	85%	Study	44	2025-09-19
Note Code MIT (LICENSE.txt). README: sprites are CC BY-NC-SA 4.0 (non-commercial, share-alike). Code only. Asset license CC BY-NC-SA 4.0 sprites Engine / build Godot / Godot project Use as Study Repo https://github.com/uheartbeast/youtube-action-rpg Checked 2026-10-09
galangua (opens in a new tab)	Problem	2D shooter	MIT (permissive)	proprietary	70%	Study	42	2026-05-26
Note Code MIT (LICENSE). Galaga clone; name/characters are Bandai Namco IP. Study only. Asset license Galaga IP Engine / build Custom (Rust) / Cargo Use as Study Repo https://github.com/tyfkda/galangua Checked 2026-10-09
survivors-roguelike-kit (opens in a new tab)	Problem	Top-down shooter	MIT (permissive)	mixed	68%	Study	40	2026-07-26
Note Code MIT (LICENSE). README: pixel art generated with AI tools; DOTween has a separate license; third-party assets to be checked. Asset license AI-generated art; DOTween needs its own license Engine / build Unity / Unity project Use as Study Repo https://github.com/Roo-Roo-Roo/survivors-roguelike-kit Checked 2026-10-09
pk2_greta (opens in a new tab)	Problem	Platformer	CC BY-NC 4.0 (unclear / restricted)	proprietary	70%	Study	37	2026-10-06
Note The whole work, code and assets alike, is licensed CC BY-NC 4.0, which forbids commercial use. Asset license licence.txt: CC BY-NC 4.0 for code and assets (Janne Kivilahti and Piste Gamez community). Engine / build SDL2 / CMake Use as Study Repo https://github.com/SaturninTheAlien/pk2_greta Checked 2026-10-09
2d-minecraft (opens in a new tab)	Problem	Sandbox	zlib (permissive)	proprietary	90%	Study	36	2026-04-04
Note Code zlib (LICENSE). Minecraft-themed; asset provenance not documented (inferred, not confirmed). Study only. Asset license Minecraft-style assets (LFS), source not documented Engine / build SDL2 Use as Study Repo https://github.com/cheyao/2d-minecraft Checked 2026-10-09
quick-dungeon-crawler-rpg-od (opens in a new tab)	Problem	Action RPG	AGPL-3.0 (copyleft)	proprietary	98%	Study	34	2026-10-09
Note Code is AGPL-3.0 and it already runs in the browser, but monster sprites and music are third-party itch.io and SoundCloud packs with their own terms. Asset license Aekashics monster sprites, phoenix1291 SFX, Leviathan_Music and Sonatina music; licences not stated. Engine / build Custom (HTML5/JS) / npm Use as Study Repo https://github.com/Werkstattl/quick-dungeon-crawler-rpg-od Checked 2026-10-09
skynet-godot (opens in a new tab)	Problem	3D shooter	GPL-3.0 (copyleft)	proprietary	40%	Study	33	2026-10-09
Note The port's own code is GPL-3.0, but it needs the original Terminator SkyNET game data, which is proprietary and must be supplied by the player. Asset license All maps, textures, sounds, music and art are converted at runtime from the player's copy of the proprietary original game. Engine / build Godot / Godot project Use as Study Repo https://github.com/nemo22/skynet-godot Checked 2026-10-09
retro-action-rpg (opens in a new tab)	Problem	Action RPG	MIT (permissive)	proprietary	85%	Study	22	2024-11-19
Note Code MIT (LICENSE.txt). README: all sound, music and sprites are CC BY-NC-SA 4.0 (non-commercial). Code only. Asset license CC BY-NC-SA 4.0 sfx/music/sprites Engine / build Godot / Godot project Use as Study Repo https://github.com/uheartbeast/retro-action-rpg Checked 2026-10-09
Monkanics (opens in a new tab)	Problem	Top-down shooter	AGPL-3.0 (copyleft)	proprietary	75%	Study	7	2026-10-08
Note Code is AGPL-3.0, but every model, texture, sound and music file is CC BY-NC-SA 4.0 (non-commercial). Asset license ART_LICENSE.txt: all art, SFX, VFX and music CC BY-NC-SA 4.0; Kenney prototype textures CC0. Engine / build Godot / Godot project Use as Study Repo https://github.com/Demetrius-Dixon/Monkanics Checked 2026-10-09