Rewatched the original Alien in cinema last week and it made me think of this. Both absolutely masterful in their respected artforms! The level design is used so sneakily against you and the threat of the alien is unmatched. even when he's not in the set piece, the atmosphere is more choking than actually being in space. Totally awesome and somehow IGN thinks this is a 5.9 (they're unreliable and wrong).