It revolves around a group of space colonists from the Aegis VII colony fighting against the infection of Necromorphs created when the Red Marker is removed. Necromorphs are the re-animated, mutated corpses of humans and serve as the major antagonists of the game. It was developed by Visceral Games and published by EA Games. The game was released in September 2009 in North America, with the PAL region release following in October. Although initially a Wii exclusive, it was announced during E3 2010 that a port of the game would be included in the PlayStation 3 version of Dead Space 2, using the PlayStation Move controller.