Luna Game Engine that based on irrlicht. Project has moved to github for now.
https://github.com/tecan/Luna
https://github.com/tecan/LunaLibs
https://github.com/tecan/IrrlichtDemos
Bullet Physics
Python, LUA , squirrel and angelscript options and it is codebase is zLib media is GPL for now but probably zLib too when it has more developers/artists.