Arma 3 and that is mostly "Escape From" as it's an easy drop in game mode. Although I think I still have way more hours in Europa Universalis 4 but that isn't counted for... reasons.
Also I swear my hours used to be way bigger years ago. I am not crazy right? Like only 170+ hours in TF2 I have definitely played that way more.
I know you went on a whole thing in the other thread but. There is a reason why Windows has automatic updates and sometimes forces a restart on you. It's because the average user never update anything. Ever.