Your top 10 most played games on Steam?

[PixelPerfect]

Team Fortress 2 - 451 hours
Garry's Mod - 258 hours
Awesomenauts - 38 hours
Sunrider Academy - 18.2 hours
Counter Strike: Global Offensive - 11 hours
Guns of Icarus Online - 10.8 hours
Borderlands 2 - 10.1 hours
Huniepop ( ͡° ͜ʖ ͡°) - 8.1 hours
Left 4 Dead 2 - 8 hours
Fistful of Frags - 6.1 hours