Minimum Requirements at 800x600 resolution @ 30FPS): OS: Windows XP Processor: Intel Dual Core 1.8GHz (or higher) or AMD Athlon II X2 (or higher) Memory: 1GB (or higher) Hard Disk Space: 10GB of free space Video Card: nVidia GF6600 (or higher) or ATi X1600 (or higher) with 256MB of RAM DirectX®: 9.0c Sound: DirectSound compatible, DirectX 9.0c (or higher) compatible Other Requirements: Online play requires software installation of and log-in to Games For Windows - LIVE