But be prepared to have that low, nervous feeling in your stomach the entire time, avoiding (not just dodging) enemies, guessing what's going to happen next, and randomly having the urine scared out of you as you are attacked from out of nowhere. Have to restart a generator? Have to find a certain beaker? Fine. There are elements coyly taken from countless, influential sci-fi/horror films out there already: after all, as the looming sense of dread pervades every scene and every small mission, the recollections of similar scenes in past movies or horror novels will keep you with many a nervous twitch. Hybrids, degrading weapons, cyborg mid-wives, and an omniscient computer personality out to get you.

Utterly immersive in its use of character attachment and amnesiac story-telling, it is a game that will honestly give you the sweats.

Think what the word actually means - and that's the simplest, easiest way to describe a game like System Shock 2. Yes, a bit of an over-used and almost meaningless word these days.

Old games similar to system shock 2