OS: Windows® XP/Vista/Windows 7 (Does not support Windows 2000) Processor: Intel Dual Core 2.8 GHz or AMD Ahtlon 64 x2 Dual-Core 4800+ or better Memory: 1GB for XP, 2GB for Vista/Win7 Graphics: 3D hardware accelerator card required - 100% DirectX® 9.0c-compliant 256 MB video card and drivers* DirectX®: DirectX® 9.0c (Included) Hard Drive: 8GB of uncompressed hard disk space (plus 400 MB for the Windows® swap file and 12 KB free for saved games) Sound: 100% DirectX® 9.0c-compliant true 16-bit sound card and drivers Other Requirements: A 100% Windows® XP/Vista/Windows 7-compatible computer system Keyboard/Mouse:100% Windows® XP/Vista/Windows 7-compatible mouse, keyboard and drivers *Supported Chipsets for Windows® XP/Vista/Windows 7 &nbsp - All NVIDIA® GeForce® 8800 GT 256 MB RAM and better chipsets (excluding 9400 cards) &nbsp - All ATI Radeon™ X1800 256 MB RAM and better (excludes X1800 GTO, HD2400, HD2600, and HD3450) &nbsp - Motherboard integrated video chipsets not supported