Coming up on PS+ in January are
DmC: Devil May Cry and Bioshock: Infinite (plus a few other things).
In terms of current offerings, PS+ currently offers:
- Resogun (PS4)
- Contrast (PS4) - (Leaving on Jan 7th)
- Binary Domain (PS3)
- Borderlands 2 (PS3)
- Dyad (PS3)
- Grid 2 (PS3) - (Leaving on Jan 7th)
- Ibb Obb (PS3)
- Sonic & Allstars Racing Transformed (Vita)
- Soul Sacrifice (Vita)
- Urban Trial Freestyle (Vita)
- Oddworld: Stranger's Wrath (Vita)
- WipeOut 2048 (Vita) - (has been there since last year...)
- Gravity Rush (Vita) - (has been there since last year...)
- Uncharted: Golden Abyss (Vita) - (has been there since last year...)
In the past they have offered:
On PS3 -
Dragon's Dogma: Dark arisen (November 2013)
Kingdoms of Amalur: Reckoning (September 2013)
Battlefield 3 (July 2013 )
Saints Row 3 (June 2013 )
Sleeping Dogs (May 2013 )
Ratchet & Clank: All 4 One (December 2012)
On Vita:
Sine More (October 2013 )
Blaz Blue: Continuum Shift Extend (May 2013 )
Disgaea 3: Absense of Detention (March 2013 )
Plants vs Zombies (Feb 2013)
PSP games (also on Vita):
Final Fantasy Tactics: War of the Lions (December 2012 )
Maverick Hunter X (February 2013 )
Soul Calibur: Broken Destiny (May 2013 )
Gods Eather Burst (July 2013 )
Darkstalkers Chronicles: The Dark Tower (September 2013 )
Metal Slug XX (September 2013 )
GTA: Liberty City Stories (September 2013 )
Also, they list what they're offering
here. (And that'll let you search back to see when things have been offered.)
Note: For all of the above lists, there is more than just what I've written... I just don't remember all of it. I'm trying to go off my memory as much as possible and there are games I don't remember. And I don't recall the exact dates when games were released. So I approximated the month. You'll have to check to verify them yourself off the PS+ blog I linked to a few times (or by using google).