"Doom Trooper Theme. Various races fight for control of the planet Mars." The players take control of one of seven Factions: Capitol, Imperial, Bauhaus, Mishima, Cybertronic, Brotherhood, and Dark Legion. Each faction has a unique set of units. The object of the game is to control all of the cities on Mars. Components include an area movement map of Terraformed Mars, a deck of Action Cards tailored to the theme, and sets of unit counters. This game is a module for the Warp Empires system, the core rules are required for play.