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Awesome List
Collection of Games that have the source code available on GitHub
GitHub stars and default-branch commits for michelpereira/awesome-open-source-games.
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Godot Engine – Multi-platform 2D and 3D game engine
Phaser is a fun, free and fast 2D game framework for making HTML5 games for desktop and mobile web browsers, supporting Canvas and WebGL rendering.
Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.
Desktop/Android/HTML5/iOS Java game development framework
Cocos2d-x is a suite of open-source, cross-platform, game-development tools utilized by millions of developers across the globe. Its core has evolved to serve as the foundation for Cocos Creator 1.x & 2.x.
Powerful web graphics runtime built on WebGL, WebGPU, WebXR and glTF
Clone of the Age of Empires II engine 🚀
One framework for creating powerful cross-platform games.
Flexible level editor
Space exploration, trading, and combat game.
a modern & lightweight HTML5 game engine
Shattered Pixel Dungeon is an open-source traditional roguelike dungeon crawler with randomized levels and enemies, and hundreds of items to collect and use. It's based on the source code of Pixel Dungeon, by Watabou.
Game engine
Terasology - open source voxel world
The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript
The ioquake3 community effort to continue supporting/developing id's Quake III Arena
🎮 The best way to play your itch.io games
Community effort to maintain and improve Jedi Academy (SP & MP) + Jedi Outcast (SP only) released by Raven Software
The official Allegro 5 git repository. Pull requests welcome!
Python MUD/MUX/MUSH/MU* development system
:bird: :video_game: A MelonJS port of the famous Flappy Bird Game
Multiplayer top-down shooter made from scratch in C++. Web version: https://play.hypersomnia.io Made in 🇵🇱
a 2D Game Development Framework
Unvanquished is a free and open source FPS/RTS hybrid game powered by the Daemon game engine. Historically based on Tremulous as a continuation with decades of work over it.
Flash + AIR sound effects generator. Based on Sfxr.
A collection of JS engine implementations of Breakout
A nonlinear 2D puzzle platformer taking place in impossible spaces.
Exclusively Co-Op Metroidvania with Movement as smooth as Smash Bros Melee