Infamous: Second Sun is a fantastic superhero game and is an absolute steal at £14, especially as this deal is £7 cheaper than the other sites.
I've been through the game three times now and enjoyed playing it as both good and evil Delsins. The movement styles afforded by the different powers are enormously fun. The combat options vary enough to make it worth multiple playthroughs, although the moral choices have a disappointing impact on the story. Seattle's design feels a bit generic (it's another open world city), but the graphical detail in everything from worn tarmac, rainy streets and the sun's real-time lighting make it gaming's best-looking city. The First Light standalone DLC is well worth a look too.