Here's a list of free FULL games I've got with PS+. This list doesn't have those games I already had (for example, Red Dead Redemption, Hitman Absolution, Uncharted 3 etc. and all of the PS Vita games). I've been member since 27.9.2010 and I've always bought one year subscription with a deal (around 40 per year). In addition I've got tons of PSOne games, minis, avatars, themes, betas, discounts, early access (Journey)... 100 games in this list.

PART 1 

Altered Beast

Astro Tripper

Awesomenauts

Batman Arkham City

Big Sky Infinity

Bioshock 2

Borderlands

Bulletstorm

Burnout Paradise

Castle Crashers

Catherine

Chime Super Deluxe

Comet Crash

Comix Zone

Costume Quest

Crash Commando

Critter Crunch

Crysis 2

Cubixx HD

Cuboid

DarkSiders

Dead or Alive 5

Dead Space 2

Demon's Souls

Deus Ex: Human Revolution

Double Dragon Neon

F1 Race Stars

Far Cry 2

God of War HD

Golden Axe

Gotham City Impostors

Guardians of Middle Earth

Hamsterball

Hell Yeah: Wrath of the Dead Rabbit

Hydrophobia Prophecy

ICO Classic HD

Infamous 2

Joe Danger 2: The Movie