C/C++ , PHP, PYTHON, 3D ENGINES, CHROME NATIVE CLIENT
Event driven concurrent framework for Python
2D ARPG Engine
3D .NET engine for Windows, Linux, Mac
Open Game Bootstrap
evolution for vegastrike SpaceSim/Combat/Trade game
Gives agents personality, moods, emotions and emotional attachments.
Cross-platform C framework very compact libraries and tools.
A generic 2D engine for any kind of game
AutoTeach makes kids study and learn in exchange for internet access.
A mobile tower 3D tower defense/defend the flag game
A world editor for HGE game engine written in python and uses OpenGL.
C++ Framework for slot machine games
Pygrid is an open-source and cross-platform pygame/python 2D engine.
A graphics engine + toolkit.
Sprite Font Creator
A truly extensible cross-platform game engine
Open Source Virtual World and MMOG Development Platform
cross-platform 2d game engine