What's the game you've played themost on Steam ?

[Prez]

1188 hours in CSS, but I swear that HL2:DM is probably higher than that as it wasn't tracked until after I stopped playing

[Frostbitten]

close to hitting 2000 hours on CS:GO. C:SS used to be my most played with slightly above 1500 hours.

[Labarr]

4,939 hrs on record for CS:S

 

2nd game would be Diablo 2 (Though it isn't tracked on steam... but I really wish I knew how many hours I played.)

[michellec]

1,791 hours on CS:GO and 929 hours on L4D2

[Cam]

I have almost 400 hrs on cs go

[williamc_d]

[frankie]

about 2300 Hours on CSGO

[Spiritwind]

Rust

1,967 hrs on record

[Motox]

CS:S 1,654

http://steamcommunity.com/id/dubersduders/games/?tab=all