Windows
OS: Microsoft Windows XP, Vista or Windows 7 Processor: Dual Core 2.4Ghz Memory: 1GB (2GB for Vista) Hard Disk Space: 8GB Video Card: ATI Radeon X1800 256mb, NVIDIA 7800 256mb DirectX®: DirectX 9c Sound: DirectX compatible soundcard Additional: Online play requires log-in to Games For Windows - Live.Click here for a list of countries/regions with service.