What game on steam did you play the most?

TBOI - 190

440 no idle

Counting Team Fortress 2: 56.3 hours

Not counting TF2: Tomb Raider - 31.2 hours

My post was deleted. 1867-tf2.

Counter Strike: Source. 561 Hours.

killing floor and titan quest

1144 - Stronghold Kingdom & it's F2P .

Dota 2 - 1384 Hours Played

1144 - Stronghold Kingdoms & it's F2P .

Dungeons of Dredmor.

Stronhold Kingdoms - 127 hours. But that's because I left it running when not actually playing

Team Fortress 2, 1300 hours. Outside of Steam probably Diablo II - Lord Of Destruction.

Civ 5.

Call of duty: black ops (ps3) 567h on pc my most played game is Civilization V with 66h played

TF2

TF2 - 3331hours and i have neved been using for idle farm.

Dungeon Defenders with 712 hours.

Dota 2. Close to 500 hours. I'm sorry. XD Next is Borderlands 2 with 70 hours and counting. \m/

Counter-Strike: source 1251 Hours i would have more but steam only started keeping track 4 or 5 years ago

Wasn't there a topic about the same thing a while ago?

Anyway mine is TF2.

For Steam, Terraria by a long shot. For non-Steam, Minecraft, by a LONG shot. I currently have 182 hours in Terraria,(will be more once the update comes out) and for Minecraft, I wouldn't be surprised if I've played over 500 hours of it. I've been playing Minecraft pretty consistintly since Beta 1.7.3.

Killing Floor. 700+ hours and counting

Civ 5, 212 h.

Dota 2 with 124 hours but i have only had it for a month or so

Dota 2 almost 1K