AMOS BASIC reimplementation in Java
A framework for games with defense towers along a path.
Tween for Torque
Sourceport of the classic Descent Level Editor
Game framework on top of Python, Panda3D and Twisted
also download updates from files section
A DirectX based graphics/physics engine
Read and write PGN format and test moves for legality.
C++ SDL/Box2d Programming
A cross-platform Java 2D graphics library using OpenGL.
Zap Engine