Most are in Skyrim for me as well, nearing 4 digits. Haven't been playing this for years. Next is Monster Hunter World with about 800. Can't wait for Wilds.
so according to steam i have 5753 hours in lost ark but im sure i have more hours in runescape, wow and gw2 but im not going to go out of my way to check them seeing that i dont really play them anymore. but outside of mmos its baldurs gate 3 with 210 hours closely followed by witcher 3 with 209
i used to camp notorious monsters in final fantasy XI online in the early 2000s. one of my accounts was over 39days before i stopped playing. was nothing compared to my alt account that i left logged in and afk all night for years to sell crap out of bazaar. anyway to me 39 real life days spent on a single game single character is crap load. most of it i was stuck in bed due to an injury though, soi dont feel bad or lazy about it.
Such a Sharp Pain, only because I'm a 'complete-ist' and couldn't get one or two last things done. I tend to stay away from Ren'Py games that are more than 3GB because I already know they are likely going to be over done dialogue soap operas.
According to Steam. Fallout 4. Finished it with each faction. Then the DLC came out and finished it again. Then another DLC came out and again, I finished it. Now I'm thinking about going to London
it would probably be fortnite. I was in love with the game when i was a kid. 2000~ hours. But the game i play the most now is elden ring with around 300+ hours