OS: Windows 8.1/8/7 Service Pack 1 (64 bit) Processor: Intel Core 2 Quad CPU Q6600 / 2.40GHz (4 CPUs) / AMD Phenom 9850 Quad-Core Processor (4 CPUs) / 2.5GHz RAM: 4 GB Hard Drive: 10 GB available space Video Card: NVIDIA 9800 GT 1GB / AMD HD 4870 1GB (DX 10, 10.1, 11) DirectX: Version 11
