According to an image posted in the PlayStation forums, the upcoming PlayStation 4-exclusive Infamous: Second Son will need 24 GB install.
Compared to its predecessor, the PlayStation 3 game Infamous 2 was clocked in at 14GB, according to the game’s product page on the Sony Entertainment Network website. And thanks to the new PlayGo system, the PS4 allows you to start playing before downloads are complete.
Infamous: Second Son launches exclusively for the PS4 on the 21st of March. It is the third main entry in the series, following 2009’s original Infamous and 2011’s Infamous 2.
Source: Eddie Makuch