Operating System Windows XP; Processor Intel ® Core / AMD Athlon64 X2 or better; 512 MB (XP) / 1 GB (Vista ®) or more of RAM; 8 GB or more free hard disk space; Video Card NVIDIA ® GeForce ® 6800 or better (except for a series NVIDIA GeForce 7300) / ATI Radeon ™ HD 2400 Pro or better with 256 MB or more VRAM compatible with DirectX ® 9.0c, with support for Shader 3.0; Sound card compatible with DirectSound and DirectX 9.0; DirectX 9.0c