The “Previously, on Dead Space” video is a nice touch, though it reminds me how similar Dead Space 2’s premise and gameplay are to the last one. This time Isaac Clarke awakens on a facility on Saturn’s moon Titan, three years after the rescue-mission-gone-awry on the mining ship Ishimura, and finds a very familiar situation: Titan is overrun with space zombies called Necromorphs that have set about the meticulous dismemberment of everyone in sight—and he’s still having hallucinations of his dead girlfriend.