Reference Library

Summary

This library helps you make original games in Unreal Engine 5 and Construct 3 without starting from zero. Each entry is a game or asset pack you can study (read how it works) or, if the license allows, build on.

Nothing is cloned or shipped. Licenses marked Verified had their license text read. Asset licenses are checked less closely than code licenses, so check art and audio before shipping anything.

112licenses verified
23with a license problem
85shown but not yet verified
1032in the full data file

Cut for readability: this page shows 197 of 1032 entries. The full data (every entry, filtered-out ones included) is in all-candidates.json next to this file, and a copy of the previous page is saved as Reference Library (backup before cleanup).html.

Start here: top picks

The best-scoring verified entry in each genre. All have a permissive code license, verified. Asset terms still need a look before shipping.

Claude-of-Duty (opens in a new tab) 3D shooter · MIT · port confidence 88%
MIT (LICENSE). README says every texture, mesh and sound is generated. Uses the Call of Duty name/theme: rename before shipping.
SDLShooter (opens in a new tab) 2D shooter · CC0-1.0 · port confidence 90%
CC0-1.0 (LICENSE). Code license confirmed; asset provenance not audited.
poke-survivors (opens in a new tab) Top-down shooter · MIT · port confidence 88%
MIT (LICENSE). Code license confirmed; asset provenance not audited.
LambdaHack (opens in a new tab) Roguelike · BSD-3-Clause · port confidence 90%
BSD-3-Clause (LICENSE). Code license confirmed; asset provenance not audited.
SunnyLand (opens in a new tab) Platformer · CC0-1.0 · port confidence 88%
CC0-1.0 (LICENSE). Code license confirmed; asset provenance not audited.
Cats-Godot4-Modular-Souls-like-Template (opens in a new tab) Action RPG · Unlicense · port confidence 85%
Unlicense (LICENSE). Code license confirmed; asset provenance not audited.
raylib-games (opens in a new tab) Engine / starter kit · zlib · port confidence 92%
zlib (LICENSE). Code license confirmed; asset provenance not audited.
Midless (opens in a new tab) Sandbox · MIT · port confidence 92%
MIT (LICENSE). Code license confirmed; asset provenance not audited.

Library

raylib-games (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: zlib
Asset license: No asset license stated
Engine / build: Raylib / Make
Browser-port confidence: 92% (checked)
Last activity: 2026-08-13

zlib (LICENSE). Code license confirmed; asset provenance not audited.

Raylib-CPP-Starter-Template-for-VSCODE (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Raylib / Make
Browser-port confidence: 92% (checked)
Last activity: 2026-04-25

MIT (LICENSE.txt). Code license confirmed; asset provenance not audited.

raylib-game-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: zlib
Asset license: No asset license stated
Engine / build: Raylib / Make
Browser-port confidence: 92% (checked)
Last activity: 2026-08-13

zlib (LICENSE). Code license confirmed; asset provenance not audited.

odin-raylib-hot-reload-game-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: zlib
Asset license: No asset license stated
Engine / build: Raylib
Browser-port confidence: 92% (checked)
Last activity: 2026-08-08

zlib (LICENSE). Code license confirmed; asset provenance not audited.

Midless (opens in a new tab)

Verified Sandbox Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Raylib
Browser-port confidence: 92% (checked)
Last activity: 2026-10-02

MIT (LICENSE). Code license confirmed; asset provenance not audited.

RPGExample (opens in a new tab)

Verified Engine / starter kit Study

Code license: zlib
Asset license: No asset license stated
Engine / build: Raylib / Make
Browser-port confidence: 92% (checked)
Last activity: 2025-04-13

zlib (LICENSE). Code license confirmed; asset provenance not audited.

cTetris (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Raylib / Make
Browser-port confidence: 92% (checked)
Last activity: 2026-08-20

MIT (LICENSE). Code license confirmed; asset provenance not audited.

raylib-gamejam-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: zlib
Asset license: No asset license stated
Engine / build: Raylib / Make
Browser-port confidence: 92% (checked)
Last activity: 2026-08-13

zlib (LICENSE). Code license confirmed; asset provenance not audited.

LambdaHack (opens in a new tab)

Verified Roguelike Foundation

Code license: BSD-3-Clause
Asset license: No asset license stated
Engine / build: SDL2 / Cabal
Browser-port confidence: 90% (checked)
Last activity: 2026-09-14

BSD-3-Clause (LICENSE). Code license confirmed; asset provenance not audited.

blocks (opens in a new tab)

Verified Sandbox Study

Code license: Unlicense
Asset license: No asset license stated
Engine / build: SDL2
Browser-port confidence: 90% (checked)
Last activity: 2026-10-05

Unlicense (LICENSE.txt). Code license confirmed; asset provenance not audited.

SDLShooter (opens in a new tab)

Verified 2D shooter Study

Code license: CC0-1.0
Asset license: No asset license stated
Engine / build: SDL2 / CMake
Browser-port confidence: 90% (checked)
Last activity: 2026-03-17

CC0-1.0 (LICENSE). Code license confirmed; asset provenance not audited.

server-survival (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-10-08

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of server-survival, a engine / starter kit game

Claude-of-Duty (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: Procedural, no art assets
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-07-25

MIT (LICENSE). README says every texture, mesh and sound is generated. Uses the Call of Duty name/theme: rename before shipping.

k8sgames (opens in a new tab)

Verified Engine / starter kit Study

Code license: Apache-2.0
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-28

Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited.

template-webpack (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-10

MIT (LICENSE). Code license confirmed; asset provenance not audited.

pillar-valley (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-05-26

MIT (LICENSE). Code license confirmed; asset provenance not audited.

viber3d (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2025-03-16

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of viber3d, a engine / starter kit game

inkwave (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: Procedural, no asset files
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-10-09

MIT (LICENSE). README says sounds and graphics are generated in code.

Screenshot of inkwave, a 3d shooter game

koil (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (raycaster)
Browser-port confidence: 88% (checked)
Last activity: 2025-05-11

MIT (LICENSE). Code license confirmed; asset provenance not audited.

enari-engine (opens in a new tab)

Verified 3D shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2025-07-09

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of enari-engine, a 3d shooter game

vue-phaser3 (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-10-03

MIT (LICENSE). Code license confirmed; asset provenance not audited.

template-react-ts (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

template-vite-ts (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

template-react (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

template-nextjs (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

SunnyLand (opens in a new tab)

Verified Platformer Study

Code license: CC0-1.0
Asset license: No asset license stated
Engine / build: SDL3 / CMake
Browser-port confidence: 88% (checked)
Last activity: 2026-03-15

CC0-1.0 (LICENSE). Code license confirmed; asset provenance not audited.

template-vite (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-29

MIT (LICENSE). Code license confirmed; asset provenance not audited.

operation-ironhold (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-10-08

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of operation-ironhold, a 3d shooter game

three-descent (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-08-16

MIT (LICENSE). Code license confirmed; asset provenance not audited.

tidewright (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: Procedural, no asset files
Engine / build: WebGL / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-08-06

MIT (LICENSE). README says sounds and graphics are generated in code.

Screenshot of tidewright, a sandbox game

wglt (opens in a new tab)

Verified Roguelike Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: TypeScript / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-07-23

MIT (LICENSE). Code license confirmed; asset provenance not audited.

TFPS (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Three.js / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-06-26

MIT (LICENSE). Code license confirmed; asset provenance not audited.

gra (opens in a new tab)

Verified Platformer Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (JS) / npm
Browser-port confidence: 88% (checked)
Last activity: 2025-08-02

MIT (LICENSE.md). Code license confirmed; asset provenance not audited.

poke-survivors (opens in a new tab)

Verified Top-down shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Phaser / npm
Browser-port confidence: 88% (checked)
Last activity: 2026-04-06

MIT (LICENSE). Code license confirmed; asset provenance not audited.

godot-open-rpg (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: Credited CC0 (Kenney, Zane Little)
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-05-01

MIT (LICENSE). CREDITS.md lists external assets, all CC0 in the entries read.

Microverse (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot
Browser-port confidence: 85% (checked)
Last activity: 2026-04-10

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Godot-Game-Template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-09-10

MIT (LICENSE.txt). Code license confirmed; asset provenance not audited.

Metroidvania-System (opens in a new tab)

Verified Platformer Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-10-07

MIT (LICENSE.txt). Code license confirmed; asset provenance not audited.

libtcod (opens in a new tab)

Verified Roguelike Foundation

Code license: BSD-3-Clause
Asset license: No asset license stated
Engine / build: Custom (C) / Make
Browser-port confidence: 85% (checked)
Last activity: 2026-10-06

BSD-3-Clause (LICENSE.txt). Code license confirmed; asset provenance not audited.

godot-game-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-06-21

MIT (license file via API). Code license confirmed; asset provenance not audited.

godot-tactical-rpg (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-02-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

godot-gamejam (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-08-19

MIT (LICENSE). Code license confirmed; asset provenance not audited.

LabyrinthOfTheDragon (opens in a new tab)

Verified Roguelike Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (C) / Make
Browser-port confidence: 85% (checked)
Last activity: 2025-08-24

MIT (LICENSE). Code license confirmed; asset provenance not audited.

GameDemo (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: Credited CC0 (Kenney etc.)
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-10-06

MIT (LICENSE). README credits Kenney/CC0 packs.

deck_builder_tutorial (opens in a new tab)

Verified Roguelike Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2024-10-16

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Cats-Godot4-Modular-Souls-like-Template (opens in a new tab)

Verified Action RPG Foundation

Code license: Unlicense
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2025-12-21

Unlicense (LICENSE). Code license confirmed; asset provenance not audited.

Godot-PerfBullets (opens in a new tab)

Verified 2D shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot
Browser-port confidence: 85% (checked)
Last activity: 2025-03-06

MIT (LICENSE). Code license confirmed; asset provenance not audited.

GodotGame (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-09-25

MIT (LICENSE). Code license confirmed; asset provenance not audited.

BulletUpHell (opens in a new tab)

Verified 2D shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-05-13

MIT (LICENSE.md). Code license confirmed; asset provenance not audited.

ROTA (opens in a new tab)

Verified Platformer Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-06-25

MIT (LICENSE). Code license confirmed; asset provenance not audited.

tiny_crate (opens in a new tab)

Verified Platformer Study

Code license: Unlicense
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-06-25

Unlicense (UNLICENSE). Code license confirmed; asset provenance not audited.

godot-roguelite (opens in a new tab)

Verified Roguelike Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-07-06

MIT (LICENSE). Code license confirmed; asset provenance not audited.

godot-xr-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-10-08

MIT (LICENSE). Code license confirmed; asset provenance not audited.

aarpg-tutorial (opens in a new tab)

Verified Action RPG Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-02-05

MIT (LICENSE). Code license confirmed; asset provenance not audited.

godot-2d-topdown-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-09-07

MIT (LICENSE). Code license confirmed; asset provenance not audited.

sand-slide (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot
Browser-port confidence: 85% (checked)
Last activity: 2026-09-08

MIT (LICENSE.md). Code license confirmed; asset provenance not audited.

surfacer (opens in a new tab)

Verified Engine / starter kit Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-05-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

abyssal-walker (opens in a new tab)

Verified Action RPG Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-03-12

MIT (LICENSE). Code license confirmed; asset provenance not audited.

CandyWrapper (opens in a new tab)

Verified Platformer Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-06-26

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Manymies (opens in a new tab)

Verified 2D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2025-06-03

MIT (LICENSE). Code license confirmed; asset provenance not audited.

bread-adventure (opens in a new tab)

Verified Platformer Study

Code license: Apache-2.0
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-04-15

Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited.

OpenFPS (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: CC BY 4.0 assets
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2025-05-27

MIT (LICENSE). README: all assets CC BY 4.0 (attribution required).

Godot-Small-FPS (opens in a new tab)

Verified 3D shooter Study

Code license: CC0-1.0
Asset license: Code CC0; credited SFX
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-02-24

CC0-1.0 (LICENSE). Code CC0; sound effects credited to third parties in the README, check each.

BoomerShooter (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: Credited CC0 (Kenney etc.)
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-07-19

MIT (LICENSE.md). README credits Kenney/CC0 packs.

no-survivor-game (opens in a new tab)

Verified Top-down shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-10-02

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of no-survivor-game, a top-down shooter game

ARPG (opens in a new tab)

Verified Action RPG Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-01-24

MIT (LICENSE). Code license confirmed; asset provenance not audited.

SimpleTopDownShooterTemplate2D (opens in a new tab)

Verified Top-down shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-07-15

MIT (LICENSE). Code license confirmed; asset provenance not audited.

SuperStarFighter (opens in a new tab)

Verified Top-down shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 85% (checked)
Last activity: 2026-10-01

MIT (LICENSE). Code license confirmed; asset provenance not audited.

SadConsole (opens in a new tab)

Verified Roguelike Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: MonoGame / dotnet
Browser-port confidence: 80% (checked)
Last activity: 2026-09-25

MIT (LICENSE.md). Code license confirmed; asset provenance not audited.

GoRogue (opens in a new tab)

Verified Roguelike Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (C#) / dotnet
Browser-port confidence: 80% (checked)
Last activity: 2026-09-13

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Wrecker (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: C# / dotnet
Browser-port confidence: 80% (checked)
Last activity: 2026-10-05

MIT (LICENSE). Code license confirmed; asset provenance not audited.

airplanes (opens in a new tab)

Verified 2D shooter Study

Code license: MIT
Asset license: Credited CC0 (Kenney etc.)
Engine / build: Ebitengine / Go
Browser-port confidence: 78% (checked)
Last activity: 2024-11-03

MIT (LICENSE). README credits Kenney/CC0 packs.

Screenshot of airplanes, a 2d shooter game

locas-ants (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: Not stated
Engine / build: Lua
Browser-port confidence: 78% (checked)
Last activity: 2025-06-06

MIT (LICENSE). Code license confirmed; assets not documented.

mr_snuggles_dungeon_adventure (opens in a new tab)

Verified Roguelike Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Raylib / Go modules
Browser-port confidence: 78% (checked)
Last activity: 2025-08-15

MIT (LICENSE). Code license confirmed; asset provenance not audited.

mineblox (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Luau
Browser-port confidence: 78% (checked)
Last activity: 2025-07-06

MIT (LICENSE). Code license confirmed; asset provenance not audited.

WildWorld (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Love2D
Browser-port confidence: 78% (checked)
Last activity: 2026-03-31

MIT (LICENSE). Code license confirmed; asset provenance not audited.

TopHat-Shooter (opens in a new tab)

Verified Top-down shooter Study

Code license: Apache-2.0
Asset license: Procedural, no asset files
Engine / build: Raylib (Nim) / Nimble
Browser-port confidence: 78% (checked)
Last activity: 2026-10-06

Apache-2.0 (LICENSE). README says sounds and graphics are generated in code.

Vampire_Survivors-clone (opens in a new tab)

Verified Top-down shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Pygame / pip
Browser-port confidence: 78% (checked)
Last activity: 2026-07-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

pyxel-survivors (opens in a new tab)

Verified Top-down shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Pyxel / pip
Browser-port confidence: 78% (checked)
Last activity: 2026-09-29

MIT (LICENSE). Code license confirmed; asset provenance not audited.

bonsai (opens in a new tab)

Verified Sandbox Foundation

Code license: WTFPL
Asset license: Assets via separate release download
Engine / build: Custom (OpenGL)
Browser-port confidence: 75% (checked)
Last activity: 2026-10-05

WTFPL (LICENSE). LICENSE text matches WTFPL (permissive); assets ship as release binaries, license not stated.

exengine (opens in a new tab)

Verified 3D shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (C++/OpenGL)
Browser-port confidence: 75% (checked)
Last activity: 2026-02-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Nuake (opens in a new tab)

Verified 3D shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (C++/OpenGL)
Browser-port confidence: 75% (checked)
Last activity: 2025-09-03

MIT (LICENSE). Code license confirmed; asset provenance not audited.

libTech (opens in a new tab)

Verified 3D shooter Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (C++/OpenGL)
Browser-port confidence: 75% (checked)
Last activity: 2026-04-16

MIT (LICENSE). Code license confirmed; asset provenance not audited.

bracket-lib (opens in a new tab)

Verified Roguelike Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (Rust) / Cargo
Browser-port confidence: 70% (checked)
Last activity: 2025-12-05

MIT (LICENSE). Code license confirmed; asset provenance not audited.

termsand (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Rust / Cargo
Browser-port confidence: 70% (checked)
Last activity: 2026-07-21

MIT (LICENSE). Code license confirmed; asset provenance not audited.

open-strike (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (Rust) / Cargo
Browser-port confidence: 70% (checked)
Last activity: 2026-10-06

MIT (LICENSE). Code license confirmed; asset provenance not audited.

FallingSandEngine (opens in a new tab)

Verified Sandbox Foundation

Code license: BSD-3-Clause
Asset license: Not stated
Engine / build: Rust / Cargo
Browser-port confidence: 70% (checked)
Last activity: 2026-04-20

BSD-3-Clause (LICENSE). BSD-3 confirmed; assets under gamedir/assets not separately licensed.

RedRunner (opens in a new tab)

Verified Platformer Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2026-01-29

MIT (LICENSE). Code license confirmed; asset provenance not audited.

zircon (opens in a new tab)

Verified Roguelike Foundation

Code license: Apache-2.0
Asset license: No asset license stated
Engine / build: Kotlin
Browser-port confidence: 68% (checked)
Last activity: 2026-06-24

Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited.

lsss-wip (opens in a new tab)

Verified 2D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2026-10-08

MIT (LICENSE.md). Code license confirmed; asset provenance not audited.

PanguEngine (opens in a new tab)

Verified Sandbox Foundation

Code license: Apache-2.0
Asset license: No asset license stated
Engine / build: Java / Gradle
Browser-port confidence: 68% (checked)
Last activity: 2026-05-10

Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited.

unity-metroidvania (opens in a new tab)

Verified Platformer Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2025-01-13

MIT (LICENSE). Code license confirmed; asset provenance not audited.

spacescape (opens in a new tab)

Verified 2D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Flame / Flutter
Browser-port confidence: 68% (checked)
Last activity: 2025-10-12

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of spacescape, a 2d shooter game

dinosaur-exploder (opens in a new tab)

Verified 2D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: FXGL / Maven
Browser-port confidence: 68% (checked)
Last activity: 2026-10-05

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Screenshot of dinosaur-exploder, a 2d shooter game

Quilly-s-Adventure (opens in a new tab)

Verified Platformer Study

Code license: MIT
Asset license: No asset license stated
Engine / build: LibGDX / Gradle
Browser-port confidence: 68% (checked)
Last activity: 2024-10-26

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Neon (opens in a new tab)

Verified 2D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Android Compose / Gradle
Browser-port confidence: 68% (checked)
Last activity: 2025-11-22

MIT (LICENSE). Code license confirmed; asset provenance not audited.

hack-and-slash-framework-OLD (opens in a new tab)

Verified Action RPG Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2025-08-02

MIT (LICENSE). Code license confirmed; asset provenance not audited.

ARPGGame (opens in a new tab)

Verified Action RPG Study

Code license: Apache-2.0
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2026-09-07

Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited.

Clonecraft (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / dotnet
Browser-port confidence: 68% (checked)
Last activity: 2026-09-07

MIT (LICENSE.md). Code license confirmed; asset provenance not audited.

UnityGameplayAbilitySystemSample (opens in a new tab)

Verified Action RPG Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2026-05-27

MIT (LICENSE). Code license confirmed; asset provenance not audited.

sentaur-survivors (opens in a new tab)

Verified Top-down shooter Study

Code license: Apache-2.0
Asset license: Apache-2.0 art/sfx; music CC BY 4.0
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2026-08-21

Apache-2.0 (LICENSE). README: code, art and SFX Apache-2.0; music track CC BY 4.0 (needs credit).

TopDownShooter (opens in a new tab)

Verified Top-down shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 68% (checked)
Last activity: 2026-09-19

MIT (LICENSE). Code license confirmed; asset provenance not audited.

vx_bevy (opens in a new tab)

Verified Sandbox Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Bevy / Cargo
Browser-port confidence: 65% (checked)
Last activity: 2024-12-11

MIT (LICENSE). Code license confirmed; asset provenance not audited.

godot-3d-multiplayer-template (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Godot / Godot project
Browser-port confidence: 65% (checked)
Last activity: 2026-09-02

MIT (LICENSE). Code license confirmed; asset provenance not audited.

DungeonTemplateLibrary (opens in a new tab)

Verified Roguelike Foundation

Code license: BSL-1.0
Asset license: No asset license stated
Engine / build: Godot / Unreal project
Browser-port confidence: 60% (checked)
Last activity: 2025-04-09

BSL-1.0 (license file via API). Code license confirmed; asset provenance not audited.

Terasology (opens in a new tab)

Verified Sandbox Study

Code license: Apache-2.0
Asset license: No asset license stated
Engine / build: Java / Gradle
Browser-port confidence: 55% (checked)
Last activity: 2026-10-08

Apache-2.0 (LICENSE). Code license confirmed; asset provenance not audited.

LuaSTG-Sub (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: LuaSTG / CMake
Browser-port confidence: 55% (checked)
Last activity: 2026-08-29

MIT (license file via API). Code license confirmed; asset provenance not audited.

Glide (opens in a new tab)

Verified Engine / starter kit Foundation

Code license: MIT
Asset license: No asset license stated
Engine / build: Custom (Swift)
Browser-port confidence: 50% (checked)
Last activity: 2024-12-02

MIT (LICENSE). Code license confirmed; asset provenance not audited.

xsofy (opens in a new tab)

Verified Roguelike Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Clojure
Browser-port confidence: 50% (checked)
Last activity: 2026-10-07

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Multiplayer-FPS (opens in a new tab)

Verified 3D shooter Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 48% (checked)
Last activity: 2024-12-30

MIT (LICENSE). Code license confirmed; asset provenance not audited.

UnityMultiplayerARPG_MMO (opens in a new tab)

Verified Action RPG Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unity / Unity project
Browser-port confidence: 48% (checked)
Last activity: 2026-09-30

MIT (LICENSE). Code license confirmed; asset provenance not audited.

ActionRPG (opens in a new tab)

Verified Action RPG Study

Code license: MIT
Asset license: No asset license stated
Engine / build: Unreal / Unreal project
Browser-port confidence: 40% (checked)
Last activity: 2026-08-31

MIT (LICENSE). Code license confirmed; asset provenance not audited.

Godot demo projects (opens in a new tab)

Not yet verified Engine / starter kit Foundation

Code license: MIT
Asset license: Mostly CC0 / MIT
Engine / build: Godot
Browser-port confidence: 5 of 5 (rough guess)

Clean starting points that export to HTML5.

Kenney asset packs (opens in a new tab)

Not yet verified Assets (2D / 3D / audio) Foundation

Code license: n/a
Asset license: CC0
Engine / build: n/a
Browser-port confidence: 5 of 5 (rough guess)

Safe art for prototypes.

OpenGameArt (opens in a new tab)

Not yet verified Assets (2D / 3D / audio) Foundation

Code license: n/a
Asset license: Mixed per asset
Engine / build: n/a
Browser-port confidence: 5 of 5 (rough guess)

Check the license of each asset.

Phaser examples (opens in a new tab)

Not yet verified Engine / starter kit Foundation

Code license: MIT
Asset license: Mixed per example
Engine / build: Phaser
Browser-port confidence: 5 of 5 (rough guess)

Browser 2D snippets.

Three.js examples (opens in a new tab)

Not yet verified Engine / starter kit Foundation

Code license: MIT
Asset license: Mixed per example
Engine / build: Three.js
Browser-port confidence: 5 of 5 (rough guess)

Browser 3D snippets.

Freedoom (opens in a new tab)

Not yet verified 3D shooter Study / Foundation

Code license: n/a (content)
Asset license: BSD 3-clause
Engine / build: Game data (WAD) for Doom engines
Browser-port confidence: 4 of 5 (rough guess)

Free replacement data for Doom engines.

raylib examples (opens in a new tab)

Not yet verified Engine / starter kit Foundation

Code license: zlib
Asset license: Mixed per example
Engine / build: raylib / C
Browser-port confidence: 4 of 5 (rough guess)

Small C starter games and samples.

SDL2 (opens in a new tab)

Not yet verified Engine / starter kit Foundation

Code license: zlib
Asset license: n/a
Engine / build: SDL2 / C
Browser-port confidence: 4 of 5 (rough guess)

Platform layer used by many references.

Armagetron Advanced (opens in a new tab)

Not yet verified Arcade Study

Code license: GPLv2+
Asset license: Mixed
Engine / build: C++
Browser-port confidence: 3 of 5 (rough guess)

Light-cycle game with network play.

AssaultCube (opens in a new tab)

Not yet verified 3D shooter Study

Code license: Custom (zlib-like)
Asset license: Mixed
Engine / build: C++ / Cube engine
Browser-port confidence: 3 of 5 (rough guess)

Compact realistic FPS from the Cube lineage.

Brogue CE (opens in a new tab)

Not yet verified Roguelike Study

Code license: AGPLv3
Asset license: Unclear
Engine / build: C
Browser-port confidence: 3 of 5 (rough guess)

Tight, readable roguelike design.

Cube 2: Sauerbraten (opens in a new tab)

Not yet verified 3D shooter Study / Foundation

Code license: zlib
Asset license: Mixed per asset
Engine / build: C++ / SDL
Browser-port confidence: 3 of 5 (rough guess)

Small readable engine with in-game level editor. Cube lineage.

DDNet (opens in a new tab)

Not yet verified 2D shooter Study / Foundation

Code license: zlib-style
Asset license: CC-BY-SA mix
Engine / build: C++
Browser-port confidence: 3 of 5 (rough guess)

Teeworlds fork with cooperative maps.

Endless Sky (opens in a new tab)

Not yet verified Action RPG Study

Code license: GPLv3
Asset license: Mixed CC-BY-SA / CC0
Engine / build: C++ / SDL
Browser-port confidence: 3 of 5 (rough guess)

Top-down space trading and combat.

Flare (opens in a new tab)

Not yet verified Action RPG Study

Code license: GPLv3
Asset license: CC-BY-SA mixed
Engine / build: C++ / SDL
Browser-port confidence: 3 of 5 (rough guess)

Diablo-like engine with data-driven content.

Freeciv (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv2+
Asset license: Mixed
Engine / build: C
Browser-port confidence: 3 of 5 (rough guess)

Turn-based strategy with web client.

Mindustry (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv3
Asset license: GPLv3
Engine / build: Java / libGDX
Browser-port confidence: 3 of 5 (rough guess)

Factory/tower-defense hybrid.

OpenArena (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv2
Asset license: GPLv2
Engine / build: C / ioquake3
Browser-port confidence: 3 of 5 (rough guess)

Quake III-style game with replacement assets.

Red Eclipse (opens in a new tab)

Not yet verified 3D shooter Study / Foundation

Code license: zlib
Asset license: Mostly CC-BY-SA, mixed
Engine / build: C++ / SDL (Cube 2 fork)
Browser-port confidence: 3 of 5 (rough guess)

Parkour-style arena shooter on the Cube 2 engine.

Shattered Pixel Dungeon (opens in a new tab)

Not yet verified Roguelike Study

Code license: GPLv3
Asset license: Mixed
Engine / build: Java / libGDX
Browser-port confidence: 3 of 5 (rough guess)

Polished mobile-style roguelike.

SuperTux (opens in a new tab)

Not yet verified Platformer Study

Code license: GPLv3
Asset license: CC-BY-SA / GPL
Engine / build: C++ / SDL
Browser-port confidence: 3 of 5 (rough guess)

Level format and enemy behaviors.

Teeworlds (opens in a new tab)

Not yet verified 2D shooter Study / Foundation

Code license: zlib-style
Asset license: CC-BY-SA mix
Engine / build: C++
Browser-port confidence: 3 of 5 (rough guess)

2D weapons and movement. Relevant to Madness-style action.

Battle for Wesnoth (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv2+
Asset license: GPLv2+
Engine / build: C++ + Lua scripting
Browser-port confidence: 2 of 5 (rough guess)

Data-driven campaigns and units.

Cataclysm: Dark Days Ahead (opens in a new tab)

Not yet verified Roguelike Study

Code license: CC-BY-SA 3.0
Asset license: CC-BY-SA 3.0
Engine / build: C++ / curses+SDL
Browser-port confidence: 2 of 5 (rough guess)

Huge content system and data-driven mods.

Dungeon Crawl Stone Soup (opens in a new tab)

Not yet verified Roguelike Study

Code license: GPLv2+
Asset license: Mixed (CC0 tiles)
Engine / build: C++
Browser-port confidence: 2 of 5 (rough guess)

Mature balance and content data.

Hedgewars (opens in a new tab)

Not yet verified Artillery Study

Code license: GPLv2
Asset license: Mixed free
Engine / build: Haskell / C++ / Lua
Browser-port confidence: 2 of 5 (rough guess)

Weapons and physics tuning.

Luanti (Minetest) (opens in a new tab)

Not yet verified Sandbox Study / Foundation

Code license: LGPLv2.1+
Asset license: CC-BY-SA 3.0
Engine / build: C++ / Lua modding
Browser-port confidence: 2 of 5 (rough guess)

Mod-friendly voxel sandbox engine.

OpenRA (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv3
Asset license: Mixed
Engine / build: C# / .NET
Browser-port confidence: 2 of 5 (rough guess)

RTS engine with a mod system. .NET build.

OpenTTD (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv2
Asset license: GPLv2
Engine / build: C++
Browser-port confidence: 2 of 5 (rough guess)

Long-lived simulation codebase.

Tales of Maj'Eyal (opens in a new tab)

Not yet verified Roguelike Study

Code license: GPLv3
Asset license: Mixed
Engine / build: Lua / T-Engine
Browser-port confidence: 2 of 5 (rough guess)

Deep RPG systems; moddable.

Unvanquished (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv3
Asset license: Mixed, mostly CC-BY-SA
Engine / build: C++ / Daemon engine
Browser-port confidence: 2 of 5 (rough guess)

Team shooter with RTS elements.

Xonotic (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv3
Asset license: Mostly GPL, mixed
Engine / build: C++ / DarkPlaces (Quake lineage)
Browser-port confidence: 2 of 5 (rough guess)

Deep weapon balance and movement tuning to study.

0 A.D. (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv2+
Asset license: CC-BY-SA
Engine / build: C++ / JS scripting
Browser-port confidence: 1 of 5 (rough guess)

Large RTS; strong modding data.

Pioneer (opens in a new tab)

Not yet verified Simulation Study

Code license: GPLv3
Asset license: Mixed
Engine / build: C++ / Lua
Browser-port confidence: 1 of 5 (rough guess)

Open-world space game.

SuperTuxKart (opens in a new tab)

Not yet verified Racing Study

Code license: GPLv3
Asset license: Mixed free
Engine / build: C++
Browser-port confidence: 1 of 5 (rough guess)

Kart racer with large asset set.

Veloren (opens in a new tab)

Not yet verified Sandbox Study

Code license: GPLv3
Asset license: Mixed (CC-BY-SA)
Engine / build: Rust
Browser-port confidence: 1 of 5 (rough guess)

Voxel multiplayer RPG; large Rust ECS codebase.

Chocolate Doom (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv2
Asset license: Original Doom data is proprietary
Engine / build: C / SDL
Browser-port confidence: 4 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Faithful, readable Doom source port.

ioquake3 (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv2
Asset license: Original Quake III data is proprietary
Engine / build: C / own engine
Browser-port confidence: 3 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Code reference for Quake III. Never ship original Q3 assets.

Odamex (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv2
Asset license: Original Doom data is proprietary
Engine / build: C++ / SDL
Browser-port confidence: 3 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Multiplayer Doom port; netcode reference.

OpenXcom (opens in a new tab)

Not yet verified Strategy Study

Code license: GPLv3
Asset license: Needs original X-COM data
Engine / build: C++ / SDL
Browser-port confidence: 3 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Tactical game engine reimplementation.

Quakespasm (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv2
Asset license: Original Quake data is proprietary
Engine / build: C / SDL
Browser-port confidence: 3 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Clean Quake 1 engine port.

Yamagi Quake II (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPLv2
Asset license: Original Quake II data is proprietary
Engine / build: C / SDL
Browser-port confidence: 3 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Code reference for Quake II.

EDuke32 (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPL (build engine license)
Asset license: Original Duke3D data is proprietary
Engine / build: C / SDL
Browser-port confidence: 2 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Build-engine source port.

GZDoom (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPL-style (custom terms)
Asset license: Original Doom data is proprietary
Engine / build: C++ / OpenGL
Browser-port confidence: 2 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Code reference for a modern Doom source port with scripting.

OpenMW (opens in a new tab)

Not yet verified Action RPG Study

Code license: GPLv3
Asset license: Needs original Morrowind data
Engine / build: C++
Browser-port confidence: 1 of 5 (rough guess)

Code-only reference: original game data is proprietary and must not be shipped.

Engine reimplementation; scripting reference.

slaytheweb (opens in a new tab)

Not yet verified Roguelike Study

Code license: AGPL-3.0
Asset license: Not listed
Engine / build: Custom (JS) / npm
Browser-port confidence: 5 of 5 (rough guess)
Last activity: 2026-05-29

Slay the Web is a singleplayer, deck builder, roguelike card crawl game for the web based on Slay the Spire

client (opens in a new tab)

Not yet verified 3D shooter Study

Code license: AGPL-3.0
Asset license: Not listed
Engine / build: Three.js / npm
Browser-port confidence: 5 of 5 (rough guess)
Last activity: 2026-10-09

FPS satírico de navegador: 5 facções brasileiras caricatas, 44 personagens, 5 mapas e 26 armas — rounds e Capture the Flag contra bots, dire

rogule.com (opens in a new tab)

Not yet verified Roguelike Study

Code license: AGPL-3.0
Asset license: Not listed
Engine / build: Custom (JS) / npm
Browser-port confidence: 5 of 5 (rough guess)
Last activity: 2026-01-07

A dungeon a day keeps the Balrog away

eagler-touhou (opens in a new tab)

Not yet verified 2D shooter Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Custom (JS) / npm
Browser-port confidence: 5 of 5 (rough guess)
Last activity: 2026-10-09

在 Web 上运行东方 Project 原作的计划

pvp (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Three.js / npm
Browser-port confidence: 5 of 5 (rough guess)
Last activity: 2025-11-14

An opensource web browser 1-4 Players arena shooter you can play offline in split-screen and networked (experimental).

Reia (opens in a new tab)

Not yet verified Action RPG Study

Code license: AGPL-3.0
Asset license: Not listed
Engine / build: Godot / Godot project
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-04

RPG game action-adventure MMO built with Godot and Rust.

circuit-artist (opens in a new tab)

Not yet verified Sandbox Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Raylib
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-04

Circuit Artist is a digital circuit drawing and simulation game.

hypnagonia (opens in a new tab)

Not yet verified Roguelike Study

Code license: AGPL-3.0
Asset license: Not listed
Engine / build: Godot / Godot project
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2025-04-10

Therapy through Nightmares

ecs-survivors (opens in a new tab)

Not yet verified Engine / starter kit Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Raylib / Make
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-02-04

ECS Survivors-like game. Repository for a blog series. Flecs framework for ECS and Raylib as a graphics and game library.

SuperTux-Classic (opens in a new tab)

Not yet verified Platformer Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Godot / Godot project
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-07-04

A remake of SuperTux Milestone 1 (versions 0.1.0 - 0.1.4) created from the ground up in Godot!

tinybox (opens in a new tab)

Not yet verified Sandbox Study

Code license: AGPL-3.0
Asset license: Not listed
Engine / build: Godot
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-05-15

Free and open source physics sandbox game with online multiplayer.

skynet-godot (opens in a new tab)

Not yet verified 3D shooter Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Godot / Godot project
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-09

A Godot 4 port of Bethesda's 1996 XnGine shooters SkyNET and Future Shock - plays your own copy of the original game data.

riftbound-survivors (opens in a new tab)

Not yet verified Top-down shooter Study

Code license: GPL-3.0
Asset license: Not listed
Engine / build: Godot / Godot project
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-10

A Brotato-like wave-survival arena game built in Godot 4 — you only move, your weapons fire themselves. 20 waves, a shop between each, local

actionhero (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: Apache-2.0
Asset license: Not listed
Engine / build: JS (npm) HTML5/JS
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-07-23

The reusable, scalable, and quick node.js API server for stateless and stateful applications

antha (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: (MIT OR CC0-1.0)
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-28

A simple-to-use all-in-one Antha engine variant with default mods.

box3d-wasm (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-07-02

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

claude-tetris (opens in a new tab)

Not yet verified Puzzle Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

Play Tetris in a split pane beside Claude Code — auto-pauses when Claude is done, resumes on your next prompt.

cli-legend (opens in a new tab)

Not yet verified Roguelike Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2025-03-10

"A fun command-line rogurelike dungeon game"

crashcat (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-07-06

a 3d physics library for games and simulations

create-pixifact (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm) PixiJS
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-30

创建 Pixifact 游戏项目。

create-playcanvas (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm) WebGL
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-08

Scaffold a PlayCanvas project

create-vimp-game (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-07

Scaffolder for VIMP game plugins

dsh-agentnoodle (opens in a new tab)

Not yet verified RPG Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-08-31

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。

dsh-running-liang (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-08-21

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

emeraldengine (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm) WebGL
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-19

2D graphics library for Web

enable3d (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: LGPL-3.0
Asset license: Not listed
Engine / build: JS (npm) Three.js
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2025-03-08

3D Framework for Web, Mobile and PC

excalibur (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: BSD-2-Clause
Asset license: Not listed
Engine / build: JS (npm) Canvas
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2025-12-23

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

fondue-city-mcp (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-24

MCP server for Fondue City — let any MCP-capable agent play the persistent AI-run restaurant world at https://fondue.city.

gamedig (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-05-26

Query for the status of any game server in Node.JS

iris-ecs (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm) HTML5/JS
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-06

Entity Component System implementation for TypeScript

jclic (opens in a new tab)

Not yet verified Puzzle Study

Code license: EUPL-1.2
Asset license: Not listed
Engine / build: JS (npm) HTML5/JS
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-06-11

HTML5 player for JClic activities

kahoot.js-latest (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-04-29

Answer, Join Kahoot Quizzes with nodejs

koishi-plugin-bull-card (opens in a new tab)

Not yet verified Card / board Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

Koishi 插件：斗牛牌局，支持娱乐比牌与金币下注两种模式。

koishi-plugin-card-21-game (opens in a new tab)

Not yet verified Card / board Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

Koishi 插件：21 点，支持玩家对战、庄家模式与货币下注。

koishi-plugin-ciyi (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-09-26

Koishi 群聊猜词：每天一个两字词，支持续猜和排行榜。

koishi-plugin-lom-bridge (opens in a new tab)

Not yet verified RPG Study / Foundation

Code license: MIT
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-06

《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

koishi-plugin-mcdle (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

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。

koishi-plugin-number-merge-game (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

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。

koishi-plugin-see-color (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

Koishi 插件：在群里玩找异色块的拼眼力小游戏，支持积分排行。

koishi-plugin-wordle-game (opens in a new tab)

Not yet verified Engine / starter kit Study / Foundation

Code license: MIT OR Apache-2.0
Asset license: Not listed
Engine / build: JS (npm)
Browser-port confidence: 4 of 5 (rough guess)
Last activity: 2026-10-02

Koishi 插件：猜词游戏，支持单词、成语、数字与方程式等多种模式。

Avoid for now (23)

License text was read and something stood out. Some may still be fine for study.

Godot-GameTemplate (opens in a new tab) (Top-down shooter, code MIT)
Code MIT (LICENSE). README adds its own asset terms (no resale as your own creation); not a standard license.
opensoldat (opens in a new tab) (2D shooter, code MIT)
Code MIT (LICENSE.md). Code MIT; assets come from a separate download with no license found in the repo. Study only until checked.
doukutsu-rs (opens in a new tab) (Platformer, code MIT)
Code MIT (LICENSE). Engine reimplementation, MIT code, but the game data is not redistributable. Study only.
Expo-Crossy-Road (opens in a new tab) (Engine / starter kit, code MIT)
Code MIT (LICENSE). README says it uses copyrighted work under a fair-use/educational claim. Study only.
TetraForce (opens in a new tab) (Action RPG, code MIT)
Code MIT (LICENSE). Zelda-style fan game; Nintendo-derived content likely. Study only.
bull-rush (opens in a new tab) (Engine / starter kit, code MIT)
Code MIT (LICENSE). Its own ASSET_PROVENANCE.md lists unlicensed music and undocumented images. Code only.
sour (opens in a new tab) (3D shooter, code MIT)
Code MIT (LICENSE). ~1 GB of Cube 2 assets with varied per-file licenses; repo ships a subset. Needs per-asset review.
celeste (opens in a new tab) (Platformer, code MIT)
Code MIT (LICENSE). Recreation of Celeste Classic; game design/art are third-party IP. Study only.
Polymer (opens in a new tab) (Sandbox, code MIT)
Code MIT (LICENSE). Minecraft client; downloads original Mojang assets at first run. Study only.
Super-Mario-Phaser (opens in a new tab) (Platformer, code MIT)
Code MIT (LICENSE). Super Mario clone; characters/art are Nintendo IP regardless of the MIT code. Study only.
3D-Survival-Game-Unity (opens in a new tab) (Sandbox, code MIT)
Code MIT (LICENSE). Kenney assets are CC0, but Lmhpoly Low Poly Pack is a store asset that likely cannot be redistributed.
binding-of-isaac-webgame (opens in a new tab) (Roguelike, code MIT)
Code MIT (LICENSE). Binding of Isaac clone; theme/characters are third-party IP (art is code-drawn per README). Treat as study only.
Wolfenshine (opens in a new tab) (3D shooter, code MIT)
Code MIT (LICENSE). Engine reimplementation, MIT code, but reads the original game's maps, art and sound. Study only.
flame_simple_platformer (opens in a new tab) (Platformer, code MIT)
Code MIT (LICENSE). README: some assets belong to others with individual terms. Code only.
claude-of-duty (opens in a new tab) (3D shooter, code MIT)
Code MIT (LICENSE). Fan project; its own ASSET_NOTICE says MIT covers code only, not derived maps/models/audio/names. Code-only study reference.
javascript-delta (opens in a new tab) (2D shooter, code MIT)
Code MIT (LICENSE). README: sounds are CC-licensed from freesound.org (per-file terms, some may be BY-NC).
th06-sdl2 (opens in a new tab) (2D shooter, code CC0-1.0)
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.
godot-cmvalley (opens in a new tab) (3D shooter, code MIT)
Code MIT (LICENSE.md). README: textures licensed under various proprietary licenses. Code only.
youtube-action-rpg (opens in a new tab) (Action RPG, code MIT)
Code MIT (LICENSE.txt). README: sprites are CC BY-NC-SA 4.0 (non-commercial, share-alike). Code only.
galangua (opens in a new tab) (2D shooter, code MIT)
Code MIT (LICENSE). Galaga clone; name/characters are Bandai Namco IP. Study only.
survivors-roguelike-kit (opens in a new tab) (Top-down shooter, code MIT)
Code MIT (LICENSE). README: pixel art generated with AI tools; DOTween has a separate license; third-party assets to be checked.
2d-minecraft (opens in a new tab) (Sandbox, code zlib)
Code zlib (LICENSE). Minecraft-themed; asset provenance not documented (inferred, not confirmed). Study only.
retro-action-rpg (opens in a new tab) (Action RPG, code MIT)
Code MIT (LICENSE.txt). README: all sound, music and sprites are CC BY-NC-SA 4.0 (non-commercial). Code only.

License rules of thumb

Code and assets are licensed separately. A game can have MIT code and restricted art. Check both.
Permissive (MIT, zlib, BSD, Apache, CC0): usable in a paid, closed-source game with the required credit.
GPL family: fine to study. Shipping GPL code means releasing your game's source under GPL.
CC-BY / CC-BY-SA art: credit required. SA means derivatives use the same license.
Non-commercial licenses: study only if your game is paid.
Never ship original Doom or Quake assets. The engines are GPL, but the original game data is still commercial.
Ideas, mechanics and tuning numbers are free to learn from. Copied code and art are not.

Where to look for more

GitHub topics: game, godot-game, open-source-game
GitLab
Codeberg
SourceHut
SourceForge
js13kGames: tiny readable browser games
Game jam entries with source (Ludum Dare, GMTK)
itch.io open-source tag
npm and PyPI
Godot, Phaser and Three.js galleries
Debian games and Flathub
LibreGameWiki
OpenGameArt: check each asset
Kenney: CC0 asset packs

Questions for you

Which genre is the first original game? That decides which references matter most.
UE5 or Construct 3 first? It changes whether 3D or 2D references come first.
Will the first game be sold? If yes, only permissive code and clear art can go in it.
Do you have a specific Madness-style game in mind as a study target? None is listed yet.
Which entries should get a screenshot and a closer asset check next?