The average player who spends a bit of time free roaming takes 35 to 40 hours to complete Ubisoft's open world hacking game Watch Dogs, creative director Jonathan Morin said on Twitter.However, to do and see everything the game has to offer will take closer to 100 hours, Morin added.And that's not taking online play, about which Eurogamer's Tom Phillips wrote about last week, into the mix.