Rookeh

Baldur’s Gate 3 (~600 hours), BeamNG.drive (~550), Cities Skylines (~300), Space Engineers (~300), 7 Days to Die (~250) and Satisfactory (~230).

These are all stats from Steam and probably not fully representative. Satisfactory for example I used to play on Epic when I got it as a free game over there, probably logged at least another 500 hours or so on that platform.

My most played game of all time is most likely TES: Oblivion, which I started playing at release back when I was a teenager and had almost infinite free time. I’m not sure if I still have my oldest save to confirm, but I suspect it would be at least 1,500 hours, probably more across several characters.