Looking for a game engine

Well, I'm no longer looking for one.

I found one, and it's called Cube 2: Sauerbraten.
I played Cube a lot before, and Assault Cube, which was based on Cube a lot.
Cube 2 is the redesigned version.

I probably won't end up creating anything playable, but I will have fun trying.

EDIT


I'll probably end up using Crystal Space 3D for the engine, simply because it has Python scripting, and because a part of Cube 2 doesn't quite work for me, and I can't seem to figure it out.