Casual games?

[STREEM]

Maplestory 

+1

--
 you still play it ? o;

[Sheep]

any MMO will do.

[Simon]

any Skate or Tony hawk game. Also if you're just lurking about in Prototype/infamous you can chill I guess...

Also minesweeper.

[A maid]

While listening to your own music, not in-game I suppose?
Well Solitaire does the trick for me, no kidding.

You can import your own music and have it play in the vehicle and also on foot.

[Caio]

boxhead 

If you like puzzles, try colourshift or loops of zen.
Shockwave has a Daily Jigsaw which is enternaining.
Heli Attack 2 is awesome too but I don't know if you can mute it.

And my current addiction: New Star Soccer (the flash version)

[Determined]

There's this great invention in gaming called an SNES, I heard that you can actually get an emulator for PC, that's crazy! Seriously though, snes games are fucking addictive, not to mention that a lot of games have custom built levels to keep you entertained. Super mario world alone has over 9000 rom hacks.

Other than that, The Incredible Machine. Doesn't matter which one, they're all great physics/logic puzzle games.

[JustCaus3]

Heroes of Newerth is a good game to play with mates  It's also free so..

[Rainbow]

Maplestory 

+1

--
 you still play it ? o;

Maple Europe sometimes.. Am around lvl 50 or smth. Gets boring pretty quick now though because I played private servers before and know anything about the game now 

[Basiµm]

NFS probably. 

[灰野 敬二]

There's this great invention in gaming called an SNES, I heard that you can actually get an emulator for PC, that's crazy! Seriously though, snes games are fucking addictive, not to mention that a lot of games have custom built levels to keep you entertained. Super mario world alone has over 9000 rom hacks.

This.

The World of Goo, Super Meat Boy, Limbo etc. they're all great, but SNES games are just incredible.