Oregairu on PS Vita only, being published by 5pb. [Official Site] Full name is, “Yahari Game demo Ore no Seishun Love Come wa Machigatteiru.” Release date: September 19th. They’re claiming that the author of the LN Watari Wataru is “supervising” the creation of the game (but not writing it). And if you buy the limited version you get the obligatory original unaired anime episode on blu-ray. Very standard. (but limited version cost 9,975 yen which is 2835 yen more than regular version!).
Some screenshots of the unaired episode here: