30 hours of Unreal Tournament 1999.

Y'all should've seen my Xfire account when that client still ran towards the end of its lifespan in 2016.
-69 hours of Hello Kitty Online (idk why but it was a huge meme to rename an exe file to HKO.exe and have that running in the background on my friends list so I joined in)
-75 hours of Enemy Territory: Quake Wars
-120 hours of Unreal Tournament 2003
-950 hours of Halo Combat Evolved
-3,100 hours of Halo Custom Edition. Straight no-lifed that game from 2007 until 2011.

what the fuck is so great about warframe that everyone seems to be dedicating thousands of hours to it

it's not that great but its not bad

there are new content updates fairly regularly, though that also means some of the older unpolished mechanics end up being forgotten about and become a sort of broken relic that never has it's spring cleaning

it's honestly a mess of a game but still manages to be a refreshing powetrip sometimes, the new content usually does bring something new to the table, for a short while at least

1. Age Of Mythology
2. Team Fortress 2
3. Halo: The Master Chief Collection
4. FarCey 2
5. Left 4 Dead

Currently;

S.T.A.L.K.E.R. ‒ 800+ hours
Fallout: New Vegas ‒ 416 hours
Warframe ‒ 287 hours
Mount and Blade: Warband ‒ 195 hours
War Thunder ‒ 120 Hours

Right now I'm playing the shit out of Red Dead 2 and am already at like 90 hours for a forty percent completion rate. Haven't don't much story shit yet.