Dead Space and Dead Space 2 are two of this generation's few legitimately scary games. They might be a bit too scary for many players to handle, according to EA Marketing executive Laura Miele.

Ms. Miele says that's exactly why co-operative play is being introduced into the series with Dead Space 3. "We were hearing feedback that they love the thriller game, but it was pretty scary," she says, "and the obvious next step was that they wanted to play with someone. So we introduced co-op into the game."

She does go on to add that the third game in the series is "no less scary" and "true to its roots." Market research just shows that those scares are easier to take with a friend.