I want an emotionally moving game.

To the moon. Link There's a free 1 hr trial. Non steam sadly but one of the most emotional games out there recently. You can also check out youtube playthoughs.

If you find anything sad about pixels on the PC or gaming in general, then when this world comes to hell, I'm sure you won't survive.

If you want some emotionally moving game, try visual novels. Usually great plots and not bad characters

Metal gear solid 4

bastion

Journey fot the ps3

Heavy Rain.

ever 17 out of infinity

Machinarium

limbo

The Half-life series

Metro 2033, Red Dead Redemption (console only), Mirrors Edge, Mass Effect series

Mass Effect trilogy.
At the ending of 3, you will cry...
Because it's so bad it'll emotionally hurt you as you see your favorite franchise be completely and utterly destroyed.

Pokemon mistery dungeon red rescue team?

Bastion.
The Kingdom Hearts series might be interesting for you, but you need to be into that kind of games ;)

Get Bastion though!

Tetris

Hmm, nobody said Warcraft 3. I think Arthas's story is really great. You won't cry, but it will leave a bitter taste in your mouth. :)

Heavy Rain !

Black Ops' story moved me.

MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3 MOTHER 3

You should try Trauma or The Void ;)

God of War 3 :PPP

POP: Methodology Experiment 1 an indie game, or Heavy Rain for ps3, or Red Dead Redemption

to the moon

I've heard that The Walking Dead game is really good at this. But in all honesty its I'd suggest watching Indie Game The Movie its not a game but its about gaming and its very emotional.