Minimum requirements Hard Drive Space : 3.5 GB (Multiple saves and user created maps will increase the amount of needed hard disk space.) Processor : Pentium 4 3.2 Ghz, Pentium D 2.66 Ghz, AMD Athlon 64 3500+ or better RAM : 1 GB Video Card : NVIDIA® 6800 or ATI®X1650 or better Shader Model 3 required 256 Mb of graphic memory

Recommended Hard Drive Space : 3.5 GB (Multiple saves and user created maps will increase the amount of needed hard disk space.) Processor : Intel® Core 2 Duo Family, AMD®64 X2 5200+, AMD® Phenom or better RAM : 2 GB Video Card : NVIDIA® 8600 GTS or better, ATI®X1900 or better 512 Mb of graphic memory