Dead Space is a personal favorite of mine. The first one is one of the best horror games I've played, complete with a pretty deep story. The graphics are very neat and polished, though they've aged.
Isaac, the protagonist, is quested with boarding the Ishimura to repair its communications after the ship comes in contact with an alien artifact. Terror ensues.
I didn't particularly enjoy the second or third installments, so this rating is only for the first title.
Dead Space and 2 are available on Steam; Dead Space 3 is available on Origin. Both sequels are placed in the original Dead Space universe, and the third introduces a multiplayer feature.