IGN writes: "This is the year of quick turnaround sequels. Games like Dragon Age and Assassin's Creed are getting follow-ups just a year after their release. The big innovation of Assassin's Creed: Brotherhood is a new multiplayer mode that lets several players act as assassins at once. But there is also a full single-player mode that serves as the true sequel to Assassin's Creed II. Ubisoft says the campaign should take about 15 hours to play through. It may end up being "more Assassin's Creed II" (aesthetically it looks just like it), but as a huge ACII fan I wouldn't say that's a bad thing. We have a few new features of the single-player game to report".