Windows
OS: Windows XP or later Processor: AMD Athlon 64 X2 Dual-Core 4000+ / Intel Core 2 Duo 2.0GHz or better RAM: Windows Vista and Windows 7: 2GB RAM Video: minimum of 256MB of on-board RAM as well as support for Shader 3.0 or better (nVidia 7800 or better) HDD: 8x speed or better (required for installation from physical editions only) Internet connection required to play. Note: PCs using a built-in graphical chipset are recommended to have 2GB of RAM.