This is the kind of social network gaming we can really get bgehind. Ubisoft has promised that if it can get one million likes on the Assassin's Creed Facebook page, then everyone gets a new multiplayer map for Assassin's Creed: Brotherhood - among other delightful bonuses.
In addition to the new map - Venezia by Night, pictured above - Ubisoft will post a new developer diary to say thank you, and run several give-aways via the Facebook page.
Additionally, UbiWorkshop will release a commemorative t-shirt, and throw 24-hour 15 percent discount sale on all items.
The total - as of just then, but extremely likely to change in the next, oh, three seconds - is 953,266. Go forth and add your digit, children.