The Universal Military Simulator (UMS), released for DOS in 1987, is a groundbreaking strategy and wargame that lets players recreate historical battles or design their own. Featuring a 3D battlefield view, unit customization, and detailed tactical control, UMS covers conflicts from ancient to modern times. Its mix of simulation depth, flexibility, and historical scenarios appealed to serious wargamers, establishing it as an early and influential title in the military strategy genre.