The game, when it first came out, was an groundbreaking and original game. There's really nothing to compare it with. Future games may have added adjectives, but they still derive heavily from the original game.

One of the best parts of the game, that I think a lot of people miss out on, is the joy of finding seemingly random objects that happen to be massively useful. Not every level has to be solved with a gun, Trex, and car, when you can use tommy gun, Shoggoth, and hovertank.