Looking for a good single player game.

I am looking for a good single player game to dive into. Below is what I have already played.

Kotor, Kotor 2, Mass effect, mass effect 2, Bioshock, bioshock 2, Swat series, CoH, Age of empires series, Dragon age, Dragon age 2, Fable, Portal 1 and 2, COD series, left 4 dead series. Diablo 1 and 2, Fear series, Fallout 3, fallout new vegas, GTA Series, the orange box.

I know that is alot of great games that I have played to death, but im looking for something iv not played yet. Age of the game is not important. The only game type I do not like it turn based RPG's.

Edit: please stop saying witcher 1 and 2 :P tried the demo a bit ago and I hated it. Just felt clunky and not very fun. To each there own tho, I am sure plenty of you do enjoy it. And additional thanks to everyone who has provided me with some feed back.

the witcher 2

Singularity, Condemed, StarCraft 2, Assassins Creed 2, Dead Rising 2, Batman Arkam Asylum, Indigo Prophecy(Awesome single player experience), Metro 2033, All of the Prince of Persia games, Xmen Orgins wolverine, Trine, etc.

Don't see STALKER on that list.

thanks for the suggestions guys, played stalker but never finished it. Did not like it. AC and AC 2, and deadrising 2. Also played arkam asylum and the price of persia games. Tho the others you listed I have not, will look into them. Before anyone suggests it I have also played Oblivion and did not like them.

Edit: thanks chilli for the additional games to look into.

witcher 1 and witcher 2.

the total war series. try shogun 2 total war. its fantastic. my favorite tho is rome total war or medieval 2 total war.

zeno clash is really weird but good, (and cheap)

Machinarium (an awesome and gorgeous point and click adventure game)

dead space 1 and 2

Half life 1 and the expansions

Metro 2033

Singularity, Batman: Arkham Asylum, Darksiders and Amnesia: The Dark Descent.

the witcher 2

Im looking for a good single player game too. And The witcher 2 looks rly boring to me.. even if I havent played it. From the videos, the combat looks rly repetetive. Idk.

Im looking for a good single player game too. And The witcher 2 looks rly boring to me.. even if I havent played it. From the videos, the combat looks rly repetetive. Idk.

Kocelot

Yeah, I tried the demo for the whitcher just now and hated it. The controls were horrible. Did not even finish the demo, just not the kind of game for me. But ima look into some of these other games they have sujested.

The witcher 1 and 2

Metro 2033

mhofever

Batman Arkham Asylum

Metro 2033

Dragon Age Origins