An open source skateboard games engine written in C# and .NET.
Pear3DEngine is a modern and modular 3D development framework
An extensible development framework for roleplay games.
Open Source Virtual World and MMOG Development Platform
cross-platform 2d game engine
Java game engine for shoot 'em ups, using Java2D.
A game engine in java for 2D strategy games
Cross-platform reimplementation of AMOS BASIC (runtime)
Multi-Language Wrapper Collection for the Irrlicht Engine
Formerly CraveJs, it's for creating JavaScript applications and games.
AS3 Utilities library (Games Development Framework)
A cross-platform OpenGL based lightweight scenegraph library
Cross-platform 2D game engine
Game framework on top of Python, Panda3D and Twisted
AMOS BASIC reimplementation in Java
Tween for Torque
A cross platform 3d c++ game engine
The Lambda-Engine is a cross platform game engine.
Basic real-time simulation engine in C++