What launched early on during the previous generation has become Ubisoft's biggest franchise of all time.
Ubisoft updated their Facts & Figures page to reveal overall sales numbers for each of their franchises.
This includes popular, long-running IPs such as Splinter Cell (30 million), Prince of Persia (20 million) and Far Cry (18 million). But by far the most successful has been the vaunted Assassin's Creed series, which has moved over 73 million units globally thus far. Way behind in second place is Just Dance with 48 million copies sold. You may also notice that Driver has sold 19 million to date; I say we could really use a next-gen Driver installment.
And how Petz has sold more than the likes of Far Cry is beyond me, but whatever.