Best game atmosphere ?

Take On Mars :D

The first one I can think about is Deus Ex

Metro 2033 and Metro: Last Light! :D And many more!

Deus Ex is amaizing! :) I can recommend also Stalker Shadow of Chernobyl

Kentucky Route Zero, Sword & Sworcery, AC2, and Shadowrun: Returns had the most immersive and interesting/enjoyable environments I can think of right now.

Stalker Shadow of Chernobyl and Call of Pripyat, BioShock 1 and 2, Half-Life 2 + episodes.

Easy, Silent Hill 2.

the walking dead survival instinct, half life 1,2; duke nukem (that new one), enemy territory

new cod's have a nice looking graphic, but there's lack of truly good atmosphere, which make them kid's game.

Wonder why nobody said Bioshock Infinite. It's the only game that got my sister interested, because Columbia was populated with people who weren't trying to kill you.

Then they tried to kill you, and she wasn't interested anymore.

Alan Wake Call of duty ghosts metal gear rising revengeance :)

Metro 2033 and Last Light, Alan Wake, original Penumbra, Amnesia: The Dark Descent, World in Conflict, Anno 2070, Star Wars Republic Commando, Limbo, Sleeping Dogs, The Swapper, Vessel, WH40k Dawn of War 2, WH40k Space Marine

DARK SOULS

Oh man, Arcanum. The memories. I should dig that out again, I bet I can enjoy another hour or so without it crashing. We used to be so patient back in the day. :L

Mafia 1
King's Bounty: series
Stalker Shadow of Chernobyl

Mafia 1
King's Bounty: series
Stalker Shadow of Chernobyl

Bioshock, the first one.
Deus Ex: Human Revolution's atmosphere is neat as well.

Ed: oh, oh and Gemini Rue! <3 The rain!

Mafia I was the first (and for long I thought only) game that really-really got to me, both as the atmosphere, and emotionally through the story.
THEN!!!!!
Tomb Raider 2013. That game have some shortcomings, painfull multiplayer, but the single player's atmosphere was just stunning. This whole japaneese culture with tribal crazyness, and the rusty battered island. Was amazing. A lot of little things like candles, shrines, decorations on walls are so well done, it really does took me there. Alto the story wasn't as coherent, and epic as Mafia I, it was good enough.

´tis a thread ´bout atmosphere and nobody even mentioned Portal (the first one)?
Shame on you!.

Fable TLC. Still get the guild announcement sound in my head and it makes me feel nice.

Deus Ex Human Revolution, hands down. Rate the game itself as you will, but the atmosphere is cyberpunk heaven.

I liked the suffocatingly isolated atmosphere of Legend of Grimrock. Always loved Fallout 2's atmosphere too.

S.T.A.L.K.E.R. SoC, Thief.

Killzone 2. That loud propaganda playing under the sounds of warfare was a nice addition.

Morrowind - simply amazing

Let's see... aside from all the mentioned ones (did anyone mention the first Deus Ex?) I'd say: KOTOR2 (actually both, but the second one is better by a mile); Mass Effect games; Fahrenheit (Indigo Prophecy);The Witcher (the first one mainly); Return to Castle: Wolfenstein; Operation Flashpoint; Dragon Age: Origins; Call of Juarez and surprisingly Black & White 1

Nobody's gonna say it? Well, alright then.

• Fallout 3. Turn the radio off to experience just how alone and desolate a post-apocalyptic world can be
• Mother 2. I really don't know how at any point in this game you AREN'T immersed