System requirements:
Minimum: Windows XP SP2, AMD Athlon 3000+/Intel P4 2.2GHz or equivalent, 1GB of RAM, 6GB free on HD, nVidia GeForce 6 series/ATI X1800 or better, DX9c or 10 compatible sound.
Recommended: Windows Vista SP1, AMD Athlon X2 (3500+)/Intel Core 2 Duo (2.6GHz) or equivalent, 2GB of RAM, 10GB free on HD, nVidia GeForce 6800 or better/ATI X1900 or better.
An internet connection is required to activate for online gaming.
from wikipedia
所以應該玩到