Windows
OS: Microsoft Windows Vista (Windows XP is unsupported) Processor: Dual-core CPU with SSE3 (Athlon 64 X2 4200 / Pentium D 3GHz) Memory: 2GB System Memory Hard Drive: 10GB of free drive space Graphics: DX10 compatible graphics card with 256 MB of memory (Nvidia GeForce 8800 series/ ATI Radeon HD 2600 Pro) Sound: 100% DirectX 10 compatible sound card DirectX®: Microsoft DirectX 10