Pentium 90 MHz (for 320x200 resolution with textures turned off), Pentium 166 Mhz recommended (for 640x480 resolution with textures on), 16MB RAM, 24 MB for multiplayer (32 MB recommended), 195 MB of uncompressed hard disk space for installation, 16-bit High Color (640 x 480) PCI or VLB video card with 1 MB RAM, 100% Sound Blaster 16 compatible sound card, Quad-speed CD-ROM drive (600 K/second sustained transfer rate), 100% Microsoft-compatible mouse and driver.