OS: Windows XP Service Pack 3 Processor: Dual-Core processor Intel 2Ghz or AMD 2.8Ghz Memory: 2 GB RAM Hard Disk Space: 1.2 GB free space Video Card: 512MB and Shader Model 3.0 (ATI 3870, Nvidia GeForce 8800 GTS) DirectX: 9.0c Sound: DirectX 9.0 sound device