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
Hungry Hero is an open source Flash game built on Starling Framework.
Allows the Sourcemod FunCommands to be limited
Open Source Virtual World and MMOG Development Platform
cross-platform 2d game engine
Investigo - DX9 Performance and Debugging Toolkit
A cross-platform OpenGL based lightweight scenegraph library
AMOS BASIC reimplementation in Java
Cross-platform 2D game engine
A cross platform 3d c++ game engine
Game framework on top of Python, Panda3D and Twisted
This game is a 2d arcade game. You can move, jump, kill monster.
also download updates from files section
Read and write PGN format and test moves for legality.
The Lambda-Engine is a cross platform game engine.
Basic real-time simulation engine in C++