Zoo Tycoon (Marine Mania is an add-on product for Zoo Tycoon) ;
Multimedia PC with a 233 MHz processor, 300 MHz recommended. 
Windows® 98, 2000, Me or XP operating system ;
DirectX®8.0a or greater ;
64MB RAM for Windows 98, Windows Me, and Windows 2000, 128MB RAM for Windows XP (Does not support Windows 95) ;
Minimum 650MB of available hard disk space ;
4x or higher CD ROM ;
4MB graphics card, 16-bit color capable, 16MB recommended ;
Super VGA video display capable of 800x600 resolution ;
Microsoft Mouse or compatible pointing device ;
Audio board and speakers recommended