Ogre3D : OGRE has grown to become one of the most popular open-source graphics rendering engines, and has been used in a large number of production projects, i...
Irrlicht Engine - A free open source 3d engine : The Irrlicht Engine is an open source high performance realtime 3D engine written and usable in C++ and also available for .NET languages. It is compl...
Fluxus is a rapid prototyping, playing and learning environment for 3D graphics, sound and games.