Got this as a gift for my husband and he has played all the games except Revelations. He is currently working on it. Each game is an update of the previous one and the story is excellent. I can't wait to play it myself. Sometimes he gets a little frustrated with the game mechanics. He said that after AC II climbing became more difficult and there were some weird places where his character "got stuck". I think you have to have more patience when you play. After all, we're talking about assassins, not just running and shooting games.