Windows XP, Me, 2000, or 98;700 MHz or faster processor; 128 MB RAM or more (256 MB for Windows XP); 8x or faster CD/DVD drive; 600 MB or more free hard drive space
DirectX 9.0a compatible video card; 
Video card must have 32 MB or more memory and use one of these chipsets: NVIDIA GeForce FX series, GeForce4 Ti/MX series, GeForce3; GeForce2 (except MX), ATI Radeon 9000 series, ATI Radeon 8500; Matrox Parhelia