System requirements: Operating system Microsoft Windows XP / Vista/7 Pentium 4 3.2 GHz or equivalent Athlon 64 1 GB of RAM 5 GB of free hard disk space 3D-graphics adapter with 256 MB memory, compatible with DirectX 9.0c (GeForce 8600GTS or Radeon HD2600XT) Sound device compatible with DirectX 9.0c DirectX 9.0c Device for reading DVD-ROM drive