Most hours spent on one game?

My top is 500h+ playing Warframe and after is Lineage 2 in the old times )

1k+ hrs on stellaris already, really like strategy games started with civ but grand strategy games like the ones paradox make are my favorites, and now with the new stellaris dlc coming i may get more 1k hrs XD

garry's mod, with over 700 hours on it. I don't have any remorse, I am proud of how many hours I've spent on this game

most hours on one game for me is dayz, 596 hours. im sure its more on other consoles for games like cod.

I spent 5k hours on gmod and 10k on l4d2 yes im a no life

1000 in Elder Scrolls Morrowind. I don't think I could do that again though

i've spend over 600 hours in dark souls 2 for ps4..
i also played a little in the pc

Minecraft - Way too much
Dungeon Defenders - 400 (First video game I ever had on steam)

8K hours on Warface, after being disappointed withlack of changeI stopped playing about 2 years ago

2,784 FUCKING HOIURS ON LEAGUE OF LEGENDS, im not even joking, HOLY. fucking, crap! Why did u make me look this up, now i feel fucking depressed.

But i actually got unaddicted of that shit ass game, now i dont play games as much, and focus on other things, although i did manage to wrap up 300 hours on csgo.