4Gamers.be talks to Nate Fox, game director for Infamous 2, about the length of the game. For a single playthrough, focusing on one karma path, it'll take at least 12 hours to reach the end.
Want to know the other ending, then you'll need at least 12 more hours to walk the other path. Add in additional missions and collectibles and the hours add up even more.
More news on Infamous 2 and a hands-on will appear soon on 4Gamers.be