game

:iphone: Collaborative List of Open-Source iOS Apps

The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.

The automation tower defense RTS

🎮 Open-source, cross-platform 2D/3D/multiplayer game engine designed for everyone.

Desktop/Android/HTML5/iOS Java game development framework

CSS is powerful, you can do a lot of things without JS.

rhythm is just a *click* away!

♞ lichess.org: the forever free, adless and open source chess server ♞

💿 Free software that works great, and also happens to be open-source Python.

A retro game engine for Python

Open Source real-time strategy game engine for early Westwood games such as Command & Conquer: Red Alert written in C# using SDL and OpenGL. Runs on Windows, Linux, *BSD and Mac OS X.

An open source re-implementation of RollerCoaster Tycoon 2 🎢

Clone of the Age of Empires II engine 🚀

A dead simple 2D game engine for Go

The source code for 2048

Scalable open-source game backend server: multiplayer, matchmaking, leaderboards, chat, and social features for games.

Cataclysm - Dark Days Ahead. A turn-based survival game set in a post-apocalyptic world.

Flexible level editor

Open-source Android/Desktop remake of Civ V

A simple Minecraft clone written in C using modern OpenGL (shaders).

A Flutter based game engine.

🎮 Chinese DOS games collections.

Unity3D Client And C# Server Framework

Diablo build for modern operating systems

🏰 An exciting game of programming and Artificial Intelligence

UI Automation Framework for Games and Apps

Diablo devolved - magic behind the 1996 computer game

Complete Open Source and Modular solution for MMO

A curated list of Multiplayer Game Network Programming Resources

Reduce the space taken up by games and programs on disk by using native Windows APIs