OS: Windows XP/Vista/7 (Does not support Windows 2000) Processor: Intel Dual Core 2.8 GHz or AMD Ahtlon 64 x2 Dual-Core 4800+ or better RAM: 1GB for XP, 2GB for Vista/Win7 Hard Drive: 8GB of uncompressed hard disk space (plus 400 MB for the Windows swap file and 12 KB free for saved games) Video Card: 3D hardware accelerator card required – 100% DirectX 9.0c-compliant 256 MB video card and drivers. DirectX: Version 9.0c