Steam Most Game Hours on Steam?

i have 17,321 hours in tf2 on an alt account. but i dont know if it counts since it is only being used as a victim on one of my strange weapon leveling servers.

on my real account however its also tf2 but only with 1,353 hours BUT i also idled a lot on there. good old days. since i wouldnt consider it playing it would be AdVenture Capitalist with 411 but again thats not rly playing its and idle game after all same for clicker heros which is right after it with 382 hours.

So my real most played game would be terraria with only 323 (but i also idled a little bit in there since i hosted a server)