Cross-platform C framework very compact libraries and tools.
A generic 2D engine for any kind of game
C++ game libraries plus server.
Multi-threaded 2D Renderer licensed under the Mozilla Public License
A 2D game engine base on OpenGL and SDL,support for Windows & Linux
Take the chess graphism, and use it with a chess engine.
TurboSphere is an easy to learn and powerful JS based game engine.
Minecraft side viewed game made in Java
A mobile tower 3D tower defense/defend the flag game
A world editor for HGE game engine written in python and uses OpenGL.
Kinect based controller.
3D Interactive sandbox environment
A cross-platform game framework based on OpenGL and GObject.
2D Game Engine, based on OpenGL and focused on Isometric Games
A graphics engine + toolkit.
Extremely simple joystick rumble / vibration library