OS: Windows XP SP3 /Vista SP2 /7 SP1 Processor: 2.2GHz Intel Core 2 Duo or 2.6GHz AMD Athlon 64 X2 5000+ RAM: 1 GB Hard Drive: 10.5 GB available space Video Card: NVIDIA GeForce 8800 / 512MB RAM or better, ATI Radeon HD3850 / 512MB RAM (with Pixel Shader 3.0 support), 1280×720 minimum supported resolution DirectX: Version 9.0c