Supreme Ruler DOS game

Supreme Ruler is a computer strategy game in which a player controls a region's government and attempts to conquer a fictional world of fragmented states. The game simulates raising funds through taxes and spending on agriculture, government services, and the military. Up to 9 regions play at once, either human hotseat or AI controlled, and all actions are resolved simultaneously at the end of each turn. The design of Supreme Ruler was influenced by earlier nation-state simulations such as Sumer, though the concept is taken further with the addition of multiplayer, military battles, and a more sophisticated design.

The game was created by George Geczy and produced and published by JMG Software International, released for the TRS-80 microcomputer system in October 1982. An updated and expanded version, Supreme Ruler Plus, was released in May 1983.

The original Supreme Ruler games were the inspiration for George Geczy and David Thompson to create a new, modern version of the game, for the Windows PC platform. This project began in January 2000 with the formation of BattleGoat Studios and culminated with the release of Supreme Ruler 2010, and sequels Supreme Ruler 2020 and Supreme Ruler Cold War.