Minimum system requirements:

CPU:Intel Pentium IV 2.4GHz or equivalent processor
RAM:1GB RAM
VGA:DirectX 9.0c compatible video card. 128MB Pixel Shader 3.0 (NVIDIA GeForce 6200 / ATI Radeon X1300 / Intel HD Graphics 2000/3000)
OS:Windows XP SP3, Vista SP2, 7
HDD:8GB free hard disk space