Hi impixi, I can't test the Blitz3D Version, maybe you could compile it. The MiniB3D version runs ok here, I get ~40 Frames/Sec on an old Pentium 4 2,66 MhZ with a prehistoric GraKa GeForce Ti4200. Of course for a shooter it would be too slow in the end. Without debug it only runs slightly faster . Nice trees you've got.