Ubisoft has so much passion for the Assassin's Creed series that it can't imagine a time when the franchise sees its quality fall off. That's according to Assassin's Creed Unity creative director Alex Amancio, who told Game Informer that one of the secrets of the franchise's enduring success is the developers themselves.

"We've done this for a long time and we've gotten it down to a science," Amancio said. "Maybe the first one it was like, 'Oh, what do we do?' But now, it's just our daily business. We've been lucky, and I think it's mostly because of the people who are behind the product. The Assassin's Creed people, we're a huge family, and we love this brand so much that I think it's unimaginable for us to ever let this ball drop. We need to always make the best game that we can possibly make. And so far, that heart and that level of effort and professionalism, has always pulled us through."

The first Assassin's Creed title was released in 2007, and, after no new game in 2008, Ubisoft has released at least one new entry in the series every year since. This year, Ubisoft will release two installments, Assassin's Creed Rogue for Xbox 360 and PlayStation 3; and Assassin's Creed Unity for Xbox One, PlayStation 4, and PC. Both games will be released on November 11.

Eddie Makuch is a news editor at GameSpot, and you can follow him on Twitter @EddieMakuch