Originally Posted by http://www.crystalspace3d.org/main/Download
Binary SDK packages are not yet prepared. Stay tuned. We will upload them here as soon as they are ready.
I'm sorry, I saw that the last time I checked Crystal Space. I guess this one does look usable. I've downloaded both Crystal Space and Cube 2 and I'm starting to compare the engines.
I'll let you guys know how it goes. Also, any other suggestions?