GAMES I HAVE YET TO COMPLETE
(that I do have interest in playing)

This is just a list of games that I can think of off the top of my head - there are probably ~30 more games that I can't think of right now that I really do want to play some time 

AssBro + AssRev
Batman Arkham City
Dead Island
Deus Ex Human Revolution
RAGE (about 70% complete already)
Braid
Limbo
Super Meat Boy
Bastion
Trine and eventually Trine 2
Uncharted 1
Uncharted 2
Uncharted 3
Borderlands
Machinarium
Star Wars KOTOR (please don't hurt me)
Crysis 1
Crysis 2
Cave Story
From Dust
Insanely Twisted Shadow Planet
Bioshock 1
Bioshock 2
That new Rayman game
That new Sonic game
The most recent few Tomb Raider games
Dead Space 1
Dead Space 2
Dragon Age Origins
Dragon Age 2
Morrowind
Oblivion
Mafia
Mafia 2

Also fyi:
Never played a Mario game
Never played a Zelda game
Never played a Metroid Prime game
Never played a Sonic game (beyond a few on Amiga over a decade 

ago)
Did play Golden Eye 64 ;)

- I've never much been into Nintendo but I'm starting to gain a 

little interest recently but I probably would never have enough 

interest to actively go play all those games.