The version of MYST on steam is not the original 1993 release(?) This is a 3D version of the game with a weather system. Its basically the same game just not pre-rendered images. I bought this game and it sure does bring back some memories of the original MYST. If you read the books in the Red Blue book room it tells you a lot about the story line. (Personally I enjoyed all of the books. It also gives clues on what to do.) I recommend this game to anyone that wants a challenge. It is very hard to beat this with and without a walk through.