Ayam is a free 3D modelling environment for the RenderMan interface.
Mac OS X and Windows OpenGL 3D Engine tools, content and code to create games and applications. Newton physics, OpenAL sound with OGG Vorbis, Lua, Revolution, written in C.
3D Online Content Management System
ZATURN: Visual, Interactive, Intuitive, Emmersive User Experience with Mac OS X and Object Orientated Programming -- Think Tank and Sandbox