AC has made a facebook game called AC Project Legacy. You can link this game to your AC Brotherhood file and recieve some bonuses in the game. So far i've gotten extra money for owning territories on both games, and XP to train Assassin recruits. There may be more but thats all i've gotten so far. If you start to play AC Project Legacy, all you have to do to sync your game fill to it is: When you start up AC Brotherhood press the single player once. Don't load your game file. Scroll to whatever one you want to link up to and press triangle or Y. It should ask you if this is the file you want to sync to. If you have earned anything it will tell you then load you game.