It's Like a surprisingly complete Dead Space experience on the Wii. Other than a switch from a third-person to a first-person on-rail shooter, Visceral Games compromised very little in bringing their survival horror franchise to the Wii. Extraction serves as a prequel to Dead Space. The story revolves around a group of space colonists from the Aegis VII colony who are fighting against the infection of Necromorphs created when the Red Marker was removed. You'll experience the evolving terror from the perspective of four playable characters which, spoilers aside, leads to twists and turns not often possible or nearly as effective in games featuring a single playable protagonist.