Minimum: OS: XP SP3, Vista SP1, Windows 7 Processor: Intel Core 2 Duo 1.8 GHz or Athlon 64X2 2.4 GHz Memory: 2 GB for XP, 3 GB for Vista, 2 GB for Windows 7 Hard Disk Space: 10 GB Video Card: nVidia GeForce 6600 or ATI Radeon X1300 DirectX®: 9.0c (XP), 10 (Vista)