Similar to Far Cry 3 and other Ubisoft titles, those who purchase Watch Dogs on Steam will also need a Uplay account to use the mandatory Uplay client.
Watch Dogs' recommended system specs were revealed earlier this week, and the game takes 40 hours to complete on average.
Look for more on Watch Dogs soon on IGN. Mitch Dyer is an associate editor at IGN. He's trying to read 50 books in 2014. These are the 50. Talk to Mitch about books and other stuff on Twitter at @MitchyD and subscribe to MitchyD on Twitch.