Originally posted by Twistin'Ghost
I suppose someone will need to code FPS Construction Kit first, though...
Just stumbled upon this site www.blender3d.org
"Blender is the first and only fully integrated 3D graphics creation suite allowing modeling, animation, rendering, post-production, realtime interactive 3D and game creation and playback with cross-platform compatibility - all in one tidy, easily and free downloadable package!"
games created with this software - might inspire someone.