Just saw this today - was tempted!!
It's £27 new or £28 pre-owned(!). Still showing as over £36 on their website, so I'm guessing it's in-store only.
Saw this in the Stockton-on-Tees store
Here's the blurb on the game:
Set in the cold blackness of deep space, the atmosphere is soaked with a feeling of tension, dread and sheer terror. In Dead Space, players step into the role of engineer Isaac Clarke an ordinary man on a seemingly routine mission to fix the communications systems aboard a deep space mining ship. It is not long before Isaac awakes to a living nightmare when he learns that the ships crew has been ravaged by a vicious alien infestation. He must fight through the dead silence and darkness of deep space to stay alive.