OS: Windows Vista (Service Pack 2 and all available windows updates) 32-Bit Processor: 2 GHz Dual Core (Core 2 Duo 2. 4 GHZ or Atlhon X2 2. 7 GHz) Memory: 2 GB Hard Drive: 20 GB Disk Drive: DVD ROM Drive Graphics Card (AMD): DirectX 10. 1 compatible with 512 MB RAM (ATI RADEON 3000, 4000, 5000 OR 6000 series, with ATI RADEON 3870 or higher performance) Graphics Card (NVIDIA): DirectX 10. 0 compatible with 512 MB RAM (NVIDIA GEFORCE 8, 9, 200, 300, 400 OR 500 series with NVIDIA GEFORCE 8800 GT or higher performance) Sound card: DirectX compatible Peripherals: Keyboard and Mouse