Assassin's Creed Facebook game arrives Oct. 1, interacts with Brotherhood [update: live now]

Leading the charge of what Ubisoft is calling "companion games," Assassin's Creed: Project Legacy will launch on Facebook tomorrow, October 1 immediately (guess it just couldn't wait). The strategy title, described as being similar to Mafia Wars, will "unlock extra content" in Assassin's Creed: Brotherhood, which hits on November 16, in addition to providing a way to gain bonus XP in the console game.

On the flipside, playing Assassin's Creed: Brotherhood will "unlock up to 25 exclusive missions" in the Facebook game, as well as experience and in-game currency. It's what Ubisoft is calling a "virtuous cycle." Hey -- isn't that what Big Boss went on in Snake Eater? Oh. Guess not.

This article was originally published on Joystiq.