As announced recently, the PS4's lineup is headlined by Killing Floor 2 and Life Is Strange. Thanks to Cross-Buy support, both of the games available to Vita owners--Neon Chrome and Spy Chameleon--can also be downloaded and played on PS4, for a total of four games this month.
All six games can be downloaded now from the PlayStation Store through the links below. They'll be available through July 3.
PlayStation Plus Lineup For June 2017