SDK for Resident Evil Games
Create your own online real-time browser-based MMO in your website
Simple Point & Click Game
AMOS BASIC reimplementation in Java
Cross-platform 2D game engine
A framework for games with defense towers along a path.
Tween for Torque
A cross platform 3d c++ game engine
Game framework on top of Python, Panda3D and Twisted
also download updates from files section
The Lambda-Engine is a cross platform game engine.
Read and write PGN format and test moves for legality.
Zap Engine
A cross-platform Java 2D graphics library using OpenGL.