Team Fortress 2 - 1139 Hours

Mount and Blade: Warband - 554 Hours

PSO for the Dreamcast, logged over 3000 hrs. Met my wife there too.

cs

1. Forsaken World - 792h (most of time idle)
2. Saints Row 3 - 49.5h
3. GTA 4 - 37h
4. Mafia 2 - 35.5h
5. Blocks That Matter, Faerie Solitaire - 30h

Sounds like nothing compared to other posters...i guess it's because i dislike multiplayers and easily get bored of singleplayers.

after about three years, 5658 hours on Garry's Mod

Football Manager 2012, 1073 hours, since November last year.

On Steam? Most recorded is BF:BC2 at 55 hours. Unrecorded, not sure, could be Diablo 2, Starcraft, or Warcraft III. Spent my childhood playing those games.

Battlefield 3

Pokemon ruby. not sure how long, but it was a lot.

Dungeons of Dredmor. Not sure why.

Dota2 : 765 hours
LoL : Around 1400 games
HoN : Around 800 games ¨

MW2 for 2years...5-6h a day, almost every day

Super Meat Boy. Steam thinks I have a couple more hours in TF2 because I forgot to close it when I left the house once. It's second place though.

Cod 4 (xfire): 1000+ hours

230 hours of skyrim in a short period of time...

And Modern Warfare 2 on my Xbox... countless hours every day.... Shame on me.

18days and 33minutes of Modern Warfare 2....

This Thread may contain people with (almost) no life...

Dota 2, 170ish hours, followed by New Vegas, 105ish hours.

...

Borderlands of Fallout: New Vegas on my Xbox.
If those don't count then I guess it'll have to go to Sven Co-Op back when Steam didn't record that sort of information.

StarCraft2 : 1000+hrs

263 hours of the binding of isaac. Probably mostly because it's a great game to play if you also want to be doing something else at the same time, i.e. watching movies or listening to podcasts or music, etc.

mine dota 2 i.e. 550hrs now will make more than 50000+

The fun is never ending in this game :D

Acording to Steam it's Skyrim with 83 hours but I definitely spent more time playing Morrowind which has got to be 100+ hours.

omfg 140 hours of dota 2, how did that happend

801 hours Dungeon Defenders

According to Steam it would be Titan Quest: Immortal Throne at 328 hours. However, I've been playing Diablo 2 since release, I have the feeling I've clocked in way more hours into that game.