Do virtual gear shifting (and more) in any rider app
A certain block game
Xash3D FWGS engine
A dead simple 2D game engine for Go
Open source library for creative expression on the web, desktop, etc.
UCI chess engine
Free, cross-platform 2D game engine powered by Haxe and OpenFL
Multi-platform 2D and 3D game engine
Cross-platform game engine in Rust
Gideros Release version
Scan, identify and collect your Pokémon TCG cards.
A MUD client for Android, iOS, Linux, Mac OS X and Windows
GemRB is a portable open-source implementation of the Infinity Engine
Platform independent browser based Str8ts solver
Platform independent browser based Sudoku solver
Open source reimplementation of GTA San Andreas game engine in Unity
Reactive extensions for Unity
The Atomic Game Engine is a multi-platform 2D and 3D engine
Open-source, cross-platform, C++ game engine for creating 2D/3D games
Modern AS3 Game Engine
Turbulenz is a modular 3D and 2D game framework
Cross platform 2D/3D game engine written in C++11 & OpenGL ES 2/3
Cross platform Game Creation Software
Wireless computer game controller for people with low arm mobility.
Free Android 2D OpenGL Game Engine