NVIDIA GeForce 6800 or better (7300, 7600 GS, and 8500 are below minimum system requirements), ATI X1600 Pro or better (X1300, X1300 Pro and HD2400 are below minimum system requirements), 256MB Video Card and Shader Model 3.0 required
NVIDIA GeForce 6800 or better (7300, 7600 GS, and 8500 are too weak video cards), ATI X1600 Pro or better (X1300, X1300 Pro and HD2400 are too weak video cards) with 256 MB videos and support to Shader Model 3.0
Storage
at least 10 GB free space for the game itself and an additional space for file-saves