OS: Windows XP/Vista Processor: Pentium 4 1.7GHz or Athlon AMD 2100 or higher processor RAM: 512 MB for XP / 1 GB for Vista Hard Drive: 8 GB available space Video Card: D hardware accelerator card required – 100% DirectX 9.0c-compliant 128 MB video card and drivers / NVIDIA GeForce FX 6600 128 MB RAM and better chipsets / ATI Radeon X1300 128 MB RAM and better chipsets