The game of the film, though it was only loosely based on the David Fincher movie (& would probably have been better if the film, had more closely followed the game!).
Though the film had a troubled route to existence, the game knew exactly what it was doing. With great animation & sound effects, tight claustrophobic corridors, limited ammunition & time limits so tight you couldn’t breath till the end of the level..
One thing that puzzled me though was the happy ending. Did the game makers even watch the film?