OS: Windows XP/ Windows Vista / Windows 7 Processor: Intel Core 2 Duo E6600 or AMD Phenom X3 8750 processor or better Memory: 2 GB RAM Graphics: Shader 3.0 or better 256 MB NVIDIA GeForce 8600GT / ATI Radeon X1950 or better DirectX: DirectX 9.0c or later Hard Drive: 16 GB free hard drive space Sound: DirectX 9.0c or later Internet: Broadband connection and service required for Multiplayer Connectivity. Internet connection required for activation.