Orx: Data-Driven Game Engine
mGSTEP port of the Cube game engine
An advanced flexible game engine for Java.
Multimedia asset management and manipulator for Étoilé
3D Game engine
2D top down arcade shooter
A cross-platform OpenGL based lightweight scenegraph library
Basic real-time simulation engine in C++
The Objective-C Interactive Simulation Abstraction Layer
CM Game Development Kit