System Shock (PowerMac version / Official GPL Release)
Hexgrid-based clone of 2048
Open source HTML5 / JS entirely base browser game (base version) - Online version is playable...
The Ren'Py Visual Novel Engine
Code and bugfixes for Instant Kingdom's Notrium, a topdown survival game
Manic Digger - a multiplayer block-building voxel game, Minecraft clone
A free, single-player roguelike dungeon exploration game
Matching Pairs - HTML5 Game
🐍 html5 snake game written in coffee script
Documentation for the World of Warcraft web APIs.
A Starcraft 2 replay parser written in pure Ruby
A cross-platform, open source, and super fast MUD client with scripting in Lua
Drivers and libraries for the Xbox Kinect device on Windows, Linux, and OS X
Leaderboards backed by Redis in Scala
Leaderboards backed by Redis in Ruby
Leaderboards backed by Redis in Python
Leaderboards backed by Redis in PHP
A collection of JS engine implementations of Breakout
Leaderboards backed by Redis in Java
Ruby gem for interacting with the Halo:Reach API
a node.js plugin to integrate nw.js/electron games with steamworks
A gem for retrieving Xbox Live Gamertag information from the XboxLeaders API.
Brood War API
A simple set of 2d physics + collision demos for flixel v2.0
Flash + AIR sound effects generator. Based on Sfxr.
XLE -- the "hackable" 3D game rendering engine
Isometric game engine. Open world, block/voxel based and sprite rendering.
Tesseract - repo moved to http://tesseract.gg
A powerful free cross-platform RTS game engine
Simple and Fast Multimedia Library
Quasi Engine is a framework that intends to be a complete toolset to ease 2d game...
Fast and lightweight WebGL game engine
Cyan Worlds's Plasma game engine
Panda Engine - HTML5 Game Engine
The HTML5 Creation Engine: Create beautiful digital content with the fastest, most flexible 2D WebGL renderer.
Real-Time Strategy game 3D engine coded in pure java
Oxygine is C++ engine and framework for 2D games on iOS, Android, Windows, Linux and Mac
One framework for creating powerful cross-platform games.
🌱 Next-Gen AI-Assisted Isomorphic Application Engine for Embedded, Console, Mobile, Server and Desktop
a 2D rigid body physics engine for the web ▲● ■
libRocket - The HTML/CSS User Interface library
C++11 bindings/wrapper for SDL2
Desktop/Android/HTML5/iOS Java game development framework
A complete 3D game development suite written purely in Java.
Open Source Php Online RPG and Trading Game Engine for Drupal
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Godot Engine – Multi-platform 2D and 3D game engine