OS: Windows XP, Vista or Windows 7 CPU: Intel Core 2 Duo E6550 2.33GHz or Athlon 64 X2 Dual Core 5600 RAM: 2 GB HDD: 10 GB free disk space Graphics: Minimum: NVIDIA GeForce 8800 GT 512 MB RAM, ATI Radeon HD 3850 512 MB RAM or better Sound Card: DirectX 9 Compatible DirectX: Version 9.0c