Post which game on steam you’ve played the most hours on and how many hours.
Mine is MW2: 756 hours.
:fffuuu:
CSS: 154 hours… i feel noob here… xD
Well: SW:BF2 54 hours, Gmod 'bout 80 hours…
1st is TF2 - 491 hours
2nd is ME2 - 71 hours
Garry’s Mod -241 Hrs played since 2007
I’d just like to add a some more games that I have spent way too much time on.
Garrys mod: 169 hours
Half life 2: 101 hours
Half life 1: 84 hours
Lost Coast: 23 hours. I dont even know how thats possible. :hmph:
I spent 12 minutes on Lost Coast.
tic-tac-toe
200+ realtime days on WoW when I was in college (since its release in 2004), so at least 4800 hours of that. Not sure how much exactly, since I don’t play anymore as I have better things to do.
Runner up: TF2, 88 hours.
178 hours in TF2. Other long times in games are usually because I forgot to shut them down and left my computer for several days with them running. Never happened with TF2.
200 hours or something on New Super Mario Bros. DS.
Well, that beats my mw2 record. 
Back in the good old days I played Call of Duty 2 multiplayer for 2200+ hours. I barely games now.
Portal with 23 hours.
played it much more before that, tho, but then it was pirated …
i’m not much of a gamer 
Fallout 3 GOTY Edition with several hundreds of hours and more than six playthroughs with different characters. Having lost count at 200 a year ago.
620 of TF2
150 of L4D2
84 of HL2
82 of L4D
And the rest:
https://steamcommunity.com/id/cameron_d/games?tab=all
Battlefield: Bad Company 2 with 39 hours. 7 of those are for the single player campaign, the rest is online. I only got it about 3 weeks ago, though. Otherwise it would be a lot more.
TF2 - 42 hours
HL2 - 16 hours
Some of you guys are insane :fffuuu: .
I played Planetside for about three or four years, for around 3000 to 5000 hours. Damn I loved that game…
Guild Wars - over 3000 hours.
I would kill the guy who had stolen almost everything from my account.