IBM PC - Pentium 166, 16MB RAM, Direct3D compliant 3D accelerator card (with 4MB RAM), 6X CD-ROM, any operating system supporting DirectX 5, 40 MB of free Hard Drive space. Recommend Machine Configuration is: IBM PC - Pentium 200 MMX, 32MB RAM, 3DFX based 3d accelerator (Voodoo chipset), 6X CD-ROM, any operating system supporting DirectX 5.