WindowsOS: Windows 7 SP1 or Windows 8/8.1 (64 bit versions only)CPU: Intel Core2Quad Q6600 @ 2.4GHz or AMD Athlon II X4 620 @ 2.6 GHzRAM: 2GBVideo card: nVidia GeForce GTS450 or AMD Radeon HD5670 (1024MB VRAM) or Intel HD4600DirectX: DirectX June 2010 RedistributableHard disk: 11.4 GBSound card: DirectX-compatible sound card with latest driverSupported peripherals: Xbox 360 controller, Tobii EyeX Controller, SteelSeries SentrySupported video cards at launch: NVIDIA GeForce GTS 450 or better, GeForce 500, 600, 700, 900 series, AMD Radeon HD 5670 or better, Radeon HD 6000, 7000, R7, R9 seriesIntel HD4600, HD5200 (Note: Laptop versions of these cards may work but are NOT officially supported.)