Indi Developed Game Environment/Engine
A complete 2D Game Engine with built in drag and drop editor
Quick Road Visualizer
Multi-Language Wrapper Collection for the Irrlicht Engine
Easy Terrain editing and Heightmap creation
PixelLight is a cross-platform application framework
A cross-platform OpenGL based lightweight scenegraph library
Misfit Cubed is a mod of Misfit3D that includes an MD5 exporter
Megalui: 2D/3D OpenGL & C/C++ Library for Scientific Visualizations
An OpenGL sample application
small cross platform 3d game engine
A home-base for Lego Hobbyists.
A cross platform 3d c++ game engine
Free and open source FPS based on Quake III Arena
Game engine supporting many 3D/2D formats and graphic effects
A DirectX based graphics/physics engine
The Lambda-Engine is a cross platform game engine.