"The story picks up 3 years after the concluding events of the original game and finds Engineer Isaac Clarke in unfamiliar surroundings. It seems that after escaping the USG Ishimura, Isaac was rescued and brought to a space station known as The Sprawl to recuperate. As it happens, The Sprawl is located on the remnants of Saturn’s moon Titan, the site of the first planet cracking experiment. It is this vast complex that serves as the primary, although not the only, setting for Dead Space 2."
Jason from That Gamer Hub