Most hours spent on one game?

also have 2600hrs in Gmod lol
Uncounted days of my lifetime in other games

+40 days in Gears 2, +50 days in Gears 3...
Battlefield 1 also +20 days...

Garry's mod - 4,474
CS:GO - 3,280
Warframe - 1,329

I have about 4000 matches played on FAF (forged alliance forever) - total waste of life I know, but fun!

Europa Universalis 4.. Addictive game insane DLC Policy. Thx Paradox..

I think that in GTA V I stayed for up to 16 hours playing. It was too much. I would almost have finished all the missions

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Oh, in total. I think 2300 hours between all the games. (PUBG, COD, CS: GO, GTA V, GTA SA, GTA VC, RDR2)

Probably Counter Strike: Global Offensive. I think I have like 1500+ hours.

Most hours i have probably in minecraft. But on second place is Garry's Mod with 753 h

i have spent so many hours on fortnite like 2000 hours

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Another game i have alot of hours in is COD BO2 I have around 5000 mostly on Zombies

Most Ive spend on a game was 50hrs online kill one 2