Dead Space Extraction is a sci-fi survival horror shooter made exclusively for Wii, based 2008's Dead Space for high-def consoles and home computers. Players use the Wii Remote as a light gun, to aim and fire at onscreen enemies and other objects. The game is played as an on-rails shooter, with the lead character moving ahead automatically through dark and twisting caverns and corridors, challenging players to watch for upcoming enemies and react quickly. As a prequel to the original, Extraction puts players in the role of deep space explorers in the distant future, battling creepy alien entities that can mutate and animate human corpses. To keep these alien Necromorphs from repeatedly coming back to life, their space zombie hosts need to be systematically dismembered. The game also features environmental puzzles, and players must choose the direction to take when the on-rails path splits, as it does often throughout the adventure. Sci-fi circumstances and space suit abilities featured in the original Dead Space, such zero gravity areas and "stasis" slow-down powers, are factors in combat and puzzle solving. A second Wii player can join the Extraction action at almost any time, through the game's drop-in cooperative multiplayer features.