inFAMOUS: Second Son is building up to be a very interesting game, but how long will it keep you busy, especially considering that it doesn't have multiplayer? Sucker Punch Productions Co-Founder Chris Zimmerman gave some more details during a livestream on Destructoid.

Zimmerman explained that the game will last about 10-12 hours to complete the main story (we also know that there are collectibles and side missions), depending on how fast you play. If you play evil, since it's a bit more about dashing in and destroying everything, it may last a little less. Of course this is for each playthrough, and since the story is very different depending on whether you play good or evil, you can multiply that at least by two.

In addition to this, we finally learn something about a power that isn't neon or smoke, even if we're told about that just because it didn't make it into the game.  Sycker Punch experimented "steel", did "a whole bunch of stuff," and it was cool but it felt "been there done that," so they decided to discard the idea.

Finally we learn more about one of the coolest elements in the game, environmental destruction: not only all black and yellow elements in the game (that belong to the DUP) are destructible, but they're actually "perma-destructible". If you take something down, it'll stay down for the whole playthrough. This will influence the DUP control percentage of each district.