PS Plus: Free Games for December 2016
Invisible, Inc., PS4
Stories: Path of Destinies, PS4
Hyper Void, PS3
Tiny Troopers Joint Ops, PS3 (Cross buy on PS4 and Vita)
Color Guardians, PS Vita (Cross buy on PS4)
VVVVVV, PS Vita
I have literally never heard of any of these.
Okay, after watching all the trailers, I have seen that Invisible Inc game at some point. Also, the EU blog lists Hyper Void as a PS4 cross-buy and it has a VR mode... so potentially 5 PS4 games in December.
Stories: The Path of Destinies (PS4)
Invisible, Inc. (PS4)
Hyper Void (PS4, PS3, PS Vita)
Tiny Troopers Join Ops (PS4, PS3, PS Vita)
Color Guardians (PS4, PS Vita)
VVVVVV (PS Vita)