CrystalSpace is an Open Source 3D SDK for Unix, Windows, and MacOS/X. It renders with OpenGL and features GLSL shaders, CG shaders, deferred rendering, dynamic shadows, bullet based physics library, terrain engine, skeleton based animation meshes, exporter for Blender, portals, etc...
MetaWars will be an network game based on the famous comics of Jodorowski, The Metabarons.
This space battle game will allows you to take part in the famous history of the Metabaron's family, and, maybe, some day, become THE Metabaron.