OS: Windows XP/Vista/7 Processor: Intel Core 2 Duo E4300 1.8 GHz or AMD Ahtlon 64 x2 Dual-Core 4000+ 2.0 GHz4 2.4 GHz RAM: 512 MB RAM Hard Drive: 9GB 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