PC OS: Windows XP (Service Pack 2) OR Windows Vista (service pack 1) CPU: (XP) 20GHz processor or equivelent (VISTA) 2.4GHz processor or equivelent RAM: (XP) 1GB RAM (VISTA) 1.5GB RAM HARD DRIVE: 6.1 GB of hard drive o espaço with at least 1GB of additional o espaço for custom content & saved games VIDEO: 128MB Video card, with support for Pixel shader 2.0