Reference Library

Use as

Study

Code license

AGPL-3.0

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

Browser-port confidence

98% (checked)

Last activity

2026-05-29

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.

Use as

Study

Code license

AGPL-3.0

Asset license

No bundled art or audio; graphics are emoji rendered by the system font.

Engine / build

Custom (JS) / npm

Browser-port confidence

98% (checked)

Last activity

2026-01-07

AGPL-3.0 confirmed; the game draws with emoji and has no separate art or audio files to license.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

98% (checked)

Last activity

2025-11-14

GPL-3.0 (COPYING) with an MIT licence file also included; already a browser game, with no separate statement on its art and sound.

Use as

Study

Code license

AGPL-3.0

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

Browser-port confidence

95% (checked)

Last activity

2026-10-09

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

MIT

Asset license

Models and maps from Kenney and Quaternius (CC0), hosted in the separate Notblox-Assets repo.

Engine / build

Three.js / npm

Browser-port confidence

92% (checked)

Last activity

2026-06-07

MIT confirmed; it is already a Three.js browser game, with models from Kenney and Quaternius (CC0) hosted in a separate assets repo.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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).

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

MIT

Asset license

Kenney and KayKit CC0 models, weapons and skybox (docs/ASSET_CREDITS.md); SFX procedural.

Engine / build

Godot / Godot project

Browser-port confidence

97% (checked)

Last activity

2026-10-07

MIT confirmed; models and audio are Kenney and KayKit CC0, and the repo already has a Godot web export and Pages deploy.

Use as

Study

Code license

zlib

Asset license

Lesson images, fonts and sounds distributed with the zlib-licensed course.

Engine / build

Raylib / Make

Browser-port confidence

95% (checked)

Last activity

2026-08-13

zlib licence confirmed for this raylib teaching course; its small lesson resources come with the course and raylib builds for the web.

Use as

Study

Code license

MIT

Asset license

Images and audio CC BY 4.0 (attribute GDQuest and contributors).

Engine / build

Godot / Godot project

Browser-port confidence

92% (checked)

Last activity

2025-10-06

Code is MIT and art and audio are CC BY 4.0 credited to GDQuest; these Godot 3 demos export to the web easily.

Use as

Study

Code license

GPL-3.0

Asset license

Kenney Tiny Dungeon tiles (CC0); flecs MIT, raylib zlib, tmxlite zlib.

Engine / build

Raylib / Make

Browser-port confidence

92% (checked)

Last activity

2026-02-04

GPL-3.0 confirmed; tile art is Kenney Tiny Dungeon (CC0) and a web build is already on itch.io.

Use as

Study

Code license

MIT

Asset license

Kenney Tiny Dungeon sprites and Kenney fonts CC0; bullets, floor and icons procedural (assets/CREDITS.md).

Engine / build

Godot / Godot project

Browser-port confidence

92% (checked)

Last activity

2026-09-08

MIT confirmed; sprites and fonts are Kenney CC0 and the other art is procedurally generated.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence for assets/ (images, sounds, fonts); covered by repo GPL by default.

Engine / build

Raylib

Browser-port confidence

90% (checked)

Last activity

2026-10-04

GPL-3.0 confirmed; the repo documents an Emscripten web build, though sounds, fonts and images have no separate licence notes.

Use as

Study

Code license

AGPL-3.0

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

Browser-port confidence

90% (checked)

Last activity

2025-04-10

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.

Use as

Study

Code license

zlib

Asset license

No game assets; template only.

Engine / build

Raylib / Make

Browser-port confidence

90% (checked)

Last activity

2026-01-19

zlib licence confirmed; this is a raylib C++ starter template with no game assets.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

85% (checked)

Last activity

2026-09-10

GPL-3.0 confirmed; art is procedurally drawn by the repo's own code, sound and music are CC0, and fonts are OFL.

Use as

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.

Use as

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.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

80% (checked)

Last activity

2026-07-04

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

AGPL-3.0

Asset license

Per-folder licenses.txt: CC0, CC BY-SA 4.0 and MIT assets.

Engine / build

Godot

Browser-port confidence

60% (checked)

Last activity

2026-05-15

AGPL-3.0 confirmed; assets are mixed CC0, CC BY-SA 4.0 and MIT, listed in licenses.txt files in each data folder.

Use as

Study

Code license

AGPL-3.0

Asset license

No separate asset licence; art and models pulled via Git LFS, presumably under the repo licence.

Engine / build

Godot / Godot project

Browser-port confidence

40% (checked)

Last activity

2026-10-04

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.

Use as

Study

Code license

GPL-3.0-or-later

Asset license

assets/LICENSE.txt: CC BY-SA 3.0 for models, textures and sounds (stored in Git LFS).

Engine / build

Godot / dotnet

Browser-port confidence

15% (checked)

Last activity

2026-10-09

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.

Use as

Study

Code license

GPL-2.0

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

Browser-port confidence

95% (checked)

Last activity

2026-09-17

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.

Use as

Study

Code license

MPL-2.0

Asset license

No separate licence for sprites, map data and music in assets/.

Engine / build

SDL2 / Make

Browser-port confidence

95% (checked)

Last activity

2026-05-18

MPL-2.0 confirmed and a WebAssembly build already runs in the browser; the sprite and music files have no separate licence.

Use as

Study

Code license

GPL-2.0

Asset license

Graphics and sounds generated in code under GPL-2.0; no separate asset files.

Engine / build

SDL2 / CMake

Browser-port confidence

95% (checked)

Last activity

2026-09-28

GPL-2.0 confirmed; graphics are built into the code and the repo already ships an Emscripten web build script.

Use as

Study

Code license

GPL-3.0

Asset license

Minimal built-in assets (font, icons) under GPL; third-party libraries listed in README.

Engine / build

SDL2

Browser-port confidence

85% (checked)

Last activity

2026-10-09

GPL-3.0 confirmed; the game has almost no art or audio assets, and its bundled libraries are all permissive or GPL-compatible.

Use as

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.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

70% (checked)

Last activity

2026-10-05

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.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

GPL-3.0

Asset license

No asset licence or credits; files in repo presumed under GPL-3.0.

Engine / build

SDL2 (C++)

Browser-port confidence

70% (checked)

Last activity

2025-09-28

GPL-3.0 confirmed for this small university project; it gives no separate licence or credits for its sprites and sounds.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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).

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

zlib

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

Browser-port confidence

60% (checked)

Last activity

2025-07-12

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.

Use as

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.

Use as

Study

Code license

GPL-3.0

Asset license

Graphics drawn in code (GPL-3.0); music in data/music optionally CC BY 4.0.

Engine / build

SDL2 / Make

Browser-port confidence

60% (checked)

Last activity

2026-05-20

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.

Use as

Study

Code license

BSD-3-Clause

Asset license

No separate asset licence; data/ falls under the repo BSD-3-Clause licence.

Engine / build

SDL2

Browser-port confidence

50% (checked)

Last activity

2026-09-23

BSD-3-Clause (Bithack AB) covers the whole repo, including the data folder; it is SDL2 plus OpenGL ES, with no web build yet.

Use as

Study

Code license

GPL-3.0-or-later

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)

Browser-port confidence

25% (checked)

Last activity

2026-10-06

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.

Use as

Study

Code license

GPL-2.0

Asset license

No game assets; compiler tools plus test maps.

Engine / build

id Tech tools

Browser-port confidence

20% (checked)

Last activity

2026-09-12

GPL-2.0-or-later confirmed (GPL-3.0+ when built with Embree); these are command-line map compilers with no game assets.

Use as

Study

Code license

GPL (with ET terms)

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)

Browser-port confidence

10% (checked)

Last activity

2026-07-17

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.

Use as

Study

Code license

GPL-2.0

Asset license

No game assets; editor tool only.

Engine / build

id Tech tools

Browser-port confidence

10% (checked)

Last activity

2026-10-09

GPL-2.0 confirmed; SLADE is a wxWidgets desktop editor for Doom data with no game assets, so a browser port is unlikely.

Use as

Study

Code license

GPL / LGPL / BSD (mixed)

Asset license

No game assets; editor tool only.

Engine / build

id Tech tools

Browser-port confidence

5% (checked)

Last activity

2026-09-01

Mixed GPL, LGPL and BSD per file, inherited from GtkRadiant; it is a desktop map editor with no game assets.

Use as

Study

Code license

MIT

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

Browser-port confidence

98% (checked)

Last activity

2026-10-06

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.

Use as

Study

Code license

GPL-2.0

Asset license

Original author's art and music released under GPL-2.0 with the code.

Engine / build

Custom (C) / CMake

Browser-port confidence

98% (checked)

Last activity

2026-08-11

GPL-2.0 confirmed with the original author's permission covering every file, and an Emscripten web version is already playable.

Use as

Study

Code license

GPL-3.0

Asset license

DawnLike tileset (CC BY 4.0, attribution required); maps and data under GPL-3.0.

Engine / build

PixiJS / npm

Browser-port confidence

97% (checked)

Last activity

2026-07-01

GPL-3.0 confirmed and it already runs in the browser; tiles come from the DawnLike tileset, which needs attribution.

Use as

Study

Code license

GPL-2.0

Asset license

Needs separate base sets: free OpenGFX/OpenSFX/OpenMSX, or proprietary Transport Tycoon Deluxe files.

Engine / build

C++

Browser-port confidence

90% (checked)

Last activity

2026-10-08

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.

Use as

Study

Code license

AGPL-3.0

Asset license

No separate asset licence; bundled fonts carry their own licences.

Engine / build

Custom (Rust) / Cargo

Browser-port confidence

85% (checked)

Last activity

2026-10-05

AGPL-3.0-or-later confirmed; the art is simple tiles and bundled fonts have no separate notice in the README.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence; assets presumed under GPL-3.0.

Engine / build

Bevy / Cargo

Browser-port confidence

75% (checked)

Last activity

2025-11-04

GPL-3.0 confirmed and CI already builds a WebAssembly release; textures and models carry no separate licence.

Use as

Study

Code license

GPL-3.0

Asset license

No art or audio; text-mode game data under GPL-3.0.

Engine / build

Custom (C++) / CMake

Browser-port confidence

75% (checked)

Last activity

2025-07-26

GPL-3.0-or-later confirmed after the 2008 relicensing; it is a text-mode game with no art or audio.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence; Pixel Dungeon-derived art presumed GPL-3.0.

Engine / build

Custom (Java) / Gradle

Browser-port confidence

75% (checked)

Last activity

2026-10-09

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.

Use as

Study

Code license

MIT OR Apache-2.0

Asset license

Game assets CC BY 4.0 unless noted; Tektur and other fonts SIL OFL 1.1.

Engine / build

Bevy / Cargo

Browser-port confidence

75% (checked)

Last activity

2026-05-11

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.

Use as

Study

Code license

CC BY-SA 3.0

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

Browser-port confidence

70% (checked)

Last activity

2026-08-08

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.

Use as

Study

Code license

Apache-2.0

Asset license

Bundled fonts and icons have separate notices (NOTICE.txt, icons-license.txt).

Engine / build

Custom (Java) / Gradle

Browser-port confidence

70% (checked)

Last activity

2024-10-26

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.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence; LFS assets presumed GPL-3.0.

Engine / build

Bevy / Cargo

Browser-port confidence

70% (checked)

Last activity

2026-09-12

GPL-3.0 confirmed; images and sounds are in Git LFS with no separate licence, and Bevy can target WebAssembly.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence for res/; voxel content largely procedural.

Engine / build

C

Browser-port confidence

65% (checked)

Last activity

2025-08-10

GPL-3.0 confirmed; most content is generated in code and the res folder has no separate licence.

Use as

Study

Code license

GPL-2.0

Asset license

Base sounds, models and UI textures in assets/ have no separate licence; presumed GPL-2.0.

Engine / build

Custom (C++/OpenGL)

Browser-port confidence

60% (checked)

Last activity

2026-08-24

GPL-2.0 confirmed for this Quake II-derived engine; the bundled base assets have no separate licence statement.

Use as

Study

Code license

GPL-3.0

Asset license

Font derived from Spleen (BSD-2-Clause); text-mode game otherwise.

Engine / build

Zig

Browser-port confidence

60% (checked)

Last activity

2026-02-07

GPL-3.0 confirmed; the font is derived from Spleen under BSD-2-Clause and there is no other art.

Use as

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.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

55% (checked)

Last activity

2026-10-09

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/.

Use as

Study

Code license

MIT

Asset license

Original assets MIT; Pixel Perfection-derived textures CC BY-SA 4.0; fonts public domain.

Engine / build

Bevy / Cargo

Browser-port confidence

55% (checked)

Last activity

2025-10-02

Code and original assets are MIT; some textures come from Pixel Perfection (CC BY-SA 4.0) and fonts are public domain.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence; Pixel Dungeon-derived art presumed GPL-3.0.

Engine / build

LibGDX / Gradle

Browser-port confidence

55% (checked)

Last activity

2026-10-09

GPL-3.0 confirmed for this Shattered Pixel Dungeon fork; its art inherits the GPL with no separate asset notice.

Use as

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.

Use as

Study

Code license

CC BY-SA 3.0

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

Browser-port confidence

50% (checked)

Last activity

2026-10-09

The whole game is CC BY-SA 3.0, an unusual choice for code, with OFL fonts; sound packs are separate downloads.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence; credits.txt names contributors only.

Engine / build

Custom (OpenGL) / CMake

Browser-port confidence

50% (checked)

Last activity

2025-12-10

GPL-3.0 confirmed; textures have no separate licence file, and the client-server OpenGL setup would need real porting work.

Use as

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.

Use as

Study

Code license

GPL-2.0

Asset license

Graphics and music under GPL-2.0 per LICENSING; Font2.png CC BY-SA 3.0.

Engine / build

Custom (C++) / CMake

Browser-port confidence

50% (checked)

Last activity

2026-09-09

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.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

LGPL-2.1-or-later

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

Browser-port confidence

45% (checked)

Last activity

2026-10-07

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.

Use as

Study

Code license

GPL-3.0

Asset license

README states code and assets are both GPL-3.0.

Engine / build

Rust / Cargo

Browser-port confidence

45% (checked)

Last activity

2026-10-06

GPL-3.0 confirmed, and the README says the assets are covered by it too; the game targets NumWorks calculators.

Use as

Study

Code license

GPL-3.0

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)

Browser-port confidence

45% (checked)

Last activity

2026-09-06

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.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

45% (checked)

Last activity

2024-11-09

GPL-3.0 confirmed; music credits list Kevin MacLeod and Musopen tracks under CC BY 3.0, but one track has no licence.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence for resources/.

Engine / build

Custom (C++/OpenGL) / CMake

Browser-port confidence

45% (checked)

Last activity

2025-12-15

GPL-3.0 confirmed for this small OpenGL student game; resources have no separate licence.

Use as

Study

Code license

LGPL-2.1

Asset license

LICENSE.txt: media CC BY-SA 3.0; per-mod README files list other authors and licences.

Engine / build

Luanti

Browser-port confidence

40% (checked)

Last activity

2026-08-16

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.

Use as

Study

Code license

LGPL-3.0-or-later

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

Browser-port confidence

40% (checked)

Last activity

2026-10-07

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.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence for content/; presumed GPL-3.0.

Engine / build

Custom (C++/OpenGL)

Browser-port confidence

40% (checked)

Last activity

2026-07-22

GPL-3.0 confirmed; the content folder of maps, models and sounds has no separate licence.

Use as

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.

Use as

Study

Code license

GPL-3.0

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)

Browser-port confidence

35% (checked)

Last activity

2025-12-15

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.

Use as

Study

Code license

AGPL-3.0

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

Browser-port confidence

35% (checked)

Last activity

2026-05-19

AGPL-3.0 confirmed; game assets live in a separate GitLab repo and third-party assets are listed in thirdpartylegalassets.txt.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

35% (checked)

Last activity

2026-09-18

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.

Use as

Study

Code license

GPL-3.0

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

Browser-port confidence

35% (checked)

Last activity

2026-10-01

GPL-3.0-only confirmed; bundled fonts are OFL, but it is a native Android app that would need a rewrite for the web.

Use as

Study

Code license

LGPL-2.1-or-later

Asset license

LICENSE.txt: Luanti textures and sounds CC BY-SA 3.0, a few files Apache-2.0.

Engine / build

Luanti

Browser-port confidence

30% (checked)

Last activity

2026-02-17

Luanti fork for reinforcement learning: code is LGPL-2.1-or-later and built-in textures and sounds are CC BY-SA 3.0.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence for Assets/Models/Substance folders.

Engine / build

Unity / Unity project

Browser-port confidence

30% (checked)

Last activity

2026-05-12

GPL-3.0 confirmed for this Unity shooter; models and textures in the repo have no separate licence.

Use as

Study

Code license

MIT

Asset license

No separate asset licence for resources/ (textures, music, sounds, skins).

Engine / build

Custom (OpenGL)

Browser-port confidence

25% (checked)

Last activity

2026-06-17

MIT confirmed for the code; textures, music, sounds and skins in resources/ have no separate licence.

Use as

Study

Code license

GPL-3.0

Asset license

No separate asset licence; assets/cubyz presumed under GPL-3.0.

Engine / build

Zig / zig build

Browser-port confidence

15% (checked)

Last activity

2026-10-08

GPL-3.0 confirmed; textures and sounds have no separate licence, and the Zig plus modern OpenGL engine has no web target.

Use as

Study

Code license

LGPL-3.0

Asset license

Content lives in separate mod repos with no licence stated here.

Engine / build

Kotlin / Gradle

Browser-port confidence

15% (checked)

Last activity

2025-04-21

The engine implementation is LGPL-3.0; game content ships as separate mods, and the current master is heavy work in progress.

Use as

Study

Code license

GPL-3.0

Asset license

Assets GPL-3.0 unless credits.ron lists another licence (several CC BY / CC BY-SA entries).

Engine / build

Rust / Cargo

Browser-port confidence

10% (checked)

Last activity

2026-10-08

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.

Use as

Study

Code license

GPL-3.0

Asset license

Small built-in content set under GPL; most vehicles and terrains are separately licensed community mods.

Engine / build

C++

Browser-port confidence

5% (checked)

Last activity

2026-10-09

GPL-3.0-or-later confirmed; the base game ships little content and most vehicles and maps are community mods with their own licences.

Use as

Study

Code license

GPL-3.0

Asset license

Sample maps and meshes in Content/ with no separate licence; presumed GPL-3.0.

Engine / build

Unreal / Unreal project

Browser-port confidence

3% (checked)

Last activity

2026-09-05

GPL-3.0 confirmed for this Unreal Engine plugin (a paid Fab edition exists separately); there is no web target.

Use as

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.

Use as

Foundation

Code license

n/a

Asset license

CC0

Engine / build

n/a

Browser-port confidence

5 of 5 (rough guess)

Safe art for prototypes.

Use as

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.

Use as

Foundation

Code license

MIT

Asset license

Mixed per example

Engine / build

Phaser

Browser-port confidence

5 of 5 (rough guess)

Browser 2D snippets.

Use as

Foundation

Code license

MIT

Asset license

Mixed per example

Engine / build

Three.js

Browser-port confidence

5 of 5 (rough guess)

Browser 3D snippets.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

GPLv2+

Asset license

Mixed

Engine / build

C++

Browser-port confidence

3 of 5 (rough guess)

Light-cycle game with network play.

Use as

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.

Use as

Study

Code license

AGPLv3

Asset license

Unclear

Engine / build

C

Browser-port confidence

3 of 5 (rough guess)

Tight, readable roguelike design.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

GPLv2+

Asset license

Mixed

Engine / build

C

Browser-port confidence

3 of 5 (rough guess)

Turn-based strategy with web client.

Use as

Study

Code license

GPLv3

Asset license

GPLv3

Engine / build

Java / libGDX

Browser-port confidence

3 of 5 (rough guess)

Factory/tower-defense hybrid.

Use as

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.

Use as

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.

Use as

Study

Code license

GPLv3

Asset license

Mixed

Engine / build

Java / libGDX

Browser-port confidence

3 of 5 (rough guess)

Polished mobile-style roguelike.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

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.

Use as

Study

Code license

GPLv3

Asset license

Mixed

Engine / build

Lua / T-Engine

Browser-port confidence

2 of 5 (rough guess)

Deep RPG systems; moddable.

Use as

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.

Use as

Study

Code license

GPLv3

Asset license

Mixed

Engine / build

C++ / Lua

Browser-port confidence

1 of 5 (rough guess)

Open-world space game.

Use as

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.

Use as

Study

Code license

GPLv2

Asset license

Original Doom data is proprietary

Engine / build

C / SDL

Browser-port confidence

4 of 5 (rough guess)

Faithful, readable Doom source port.

Use as

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 reference for Quake III. Never ship original Q3 assets.

Use as

Study

Code license

GPLv2

Asset license

Original Doom data is proprietary

Engine / build

C++ / SDL

Browser-port confidence

3 of 5 (rough guess)

Multiplayer Doom port; netcode reference.

Use as

Study

Code license

GPLv3

Asset license

Needs original X-COM data

Engine / build

C++ / SDL

Browser-port confidence

3 of 5 (rough guess)

Tactical game engine reimplementation.

Use as

Study

Code license

GPLv2

Asset license

Original Quake data is proprietary

Engine / build

C / SDL

Browser-port confidence

3 of 5 (rough guess)

Clean Quake 1 engine port.

Use as

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 reference for Quake II.

Use as

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)

Build-engine source port.

Use as

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 reference for a modern Doom source port with scripting.

Use as

Study

Code license

GPLv3

Asset license

Needs original Morrowind data

Engine / build

C++

Browser-port confidence

1 of 5 (rough guess)

Engine reimplementation; scripting reference.

Use as

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

Use as

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.

Use as

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

Use as

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.

Use as

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"

Use as

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

Use as

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。

Use as

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

Use as

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

Use as

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。

Use as

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

Use as

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