Assassins Creed was a really incredible game.
Assassins Creed was an unbelieveably good game, and still seems to be the best out of all of the franchise.
Assassins Creed Brotherhood felt like they were somewhat adding an "expansion" rather than a new game.
Assassins Creed Revelations felt like a whole bunch of good DLC put together.
Revelations is nice, the art is amazing: some good points (art, new movement + combat), some bad points (tower defense, facial re-work, story isn't as strong).
The story seems to feel like it has almost no weight.
Which makes a lot of the game feel less engrossing.
That all being said, its still a really fun game to play, but the engrossing elements from Assassins Creed II are lacking - it basically feels like a game made out of DLC.
Ubisoft said: "We always planned for 3 Assassins Creed games. But we could probably make a dozen if we wanted"
They released Assassins Creed, Assassins Creed II, Assassins Creed Brotherhood, Assassins Creed Revelations.
"We have a game planned for 2012 which will finish the story."
It seems that Brotherhood and Revelations were just "fillers", hopefully the 5th game will be better than Revelations, the past 2 games just felt dry.