"Fifth Corps: The Soviet Breakthrough at Fulda" is one of several games in the Central Front Series published by SPI in the 1980s. "Fifth Corps" appeared in the September/October 1980 issue of Strategy & Tactics magazine #82. Both the game and series depict the early days of World War III in West Germany. Combat is conducted at the company, battalion, and regiment level, with a map scale of 4 km per hex. The map covers the Fulda Gap and includes the major West German cities of Frankfurt and Mainz.
Fifth Corps uses a collection of mechanics, including "Operations Points" and "Friction Points", variable length game turns, and Zones of Control to simulate modern battlefield conditions. As with most modern warfare games, Fifth Corps includes rules for airpower, airmobile operations, and nuclear/chemical warfare. The game includes three scenarios: an introductory "Rhein-Main Raid", a more advanced "The Battle for Fulda", and the campaign game, "Fifth Corps".