GMT Games
GMT Games is a California-based wargaming publisher founded in 1990. The current management and creative team includes Tony Curtis, Rodger MacGowan, Mark Simonitch, and Andy Lewis. The company has become well known for graphically attractive games that range from "monster games", of many maps and counters, to quite simple games suitable for introducing new players to wargaming. They also produce card games and family games. "The Washington Post" called GMT "the modern hobby's highest-profile wargame publisher".
Guerrilla Games
In mid-2003, due to a variety of mergers and corporate reshuffling, the gaming unit was sold off to Media Republic, a media venture by original Lost Boys' founder Michiel Mol, and in July of that year was renamed to Guerrilla Games. The developer began work on its first two titles, "Killzone", in development for Sony Computer Entertainment for the PlayStation 2, and "", in development for Eidos Interactive, for the PlayStation 2, Xbox and Microsoft Windows.