scene-oriented, flexible 3D engine (C++, Python, C#, Java)
GemRB is a portable open-source implementation of the Infinity Engine
... the open-source glide computer
PyMancala: A Python API for the Mancala game
Free and open source Avatar Webgame made by Vietnam
The AWS GameKit Plugin for Unreal
ZED OS the clone of Windows XP
Character animation system for games and simulations.
Website to host funny pictures, movies etc.
Open-DIS implements the IEEE DIS protocol in multiple languages.
3D .NET engine for Windows, Linux, Mac
Mobile viewer for Kendo Tournament Manager tool.
c# lua bind with unity3d project for game development
Cross-platform 2D game engine
Modified Pokemon games for emulators or devices.