Sure, it’s easy enough for us to call our game highly anticipated. After all, we saw the copious comments from the community and amongst the media – all that lovely chatter about how everyone can’t wait to get their paws on Watch Dogs. And, after a modest delay, we couldn’t wait to deliver Ubisoft Montreal’s innovative take on the open-world adventure. The good news: You really meant it. In its first 24 hours of availability, Watch Dogs sold more copies than any previous title in Ubisoft’s history!“Watch Dogs is an amazing achievement and our teams should be proud that the creativity, innovation and long hours they invested in making this game are paying off,” said Ubisoft’s co-founder and CEO Yves Guillemot. “It’s great to see so many customers enjoy playing the game, and it shows that Watch Dogs has cracked the code for developing a new blockbuster IP and a thoroughly new-gen experience.”
http://blog.ubi.com/...-sales-day-one/
I'm guessing probably 2 or 3 million.