Minimum: OS: Windows XP SP2, Windows Vista or Windows 7 Processor: Core 2 Duo 2.4 GHz or Althon X2 2.7 GHz Memory: 2GB (XP), 3GB (Vista, Win7) Hard Disk Space: 10 GB free Video Card: ATI or Nvidia graphics card with 512MB video ram or better and Shader Model 3.0+ support. (ATI Radeon 3870 or higher, Nvidia GeForce 8800 GT or higher). DirectX®: 9.0c Sound: DirectX compatible sound card