Probably Gary's Mod. I haven't played it in years but as a poor kid I loved it. I can't recall the exact amount but it was a couple thousand.

The Civ games and Fallout NV probably follow it

around 2500 hrs in Smash Ultimate

yeah I still suck lol

2200 hours, Warframe

I have ~500 hours on Team Fortress 2

3,237.5 hours, Star Trek Online. I recently started playing again after a 9-year hiatus, so about 2,900 of those hours are from like a decade ago.

Btw (shameless plug), we're trying to get a STO community up and running in the verse: https://kbin.social/m/sto. Any other captains around here, feel free to drop by!

Minecraft, happily, and across devices it'd be hard to get something even close to the number of hours pinned down. Don't even have a count on the number of sleepless nights.

A few thousand on The Last Of Us, between PS3, PS4, and PS5. Such a good game.

On a non-MMO/non-online play game - 127 in AC: Odyssey

On a MMO/online play game- 3200 in Destiny 2

In order, I think: Civ, Minecraft, rocket league, no man's sky, Skyrim, missile command, Mario kart, Mario 64, ocarina of time

~450hrs in Overwatch 1

MMOs are a different class. Thousands in WoW. Second most of Chivalry: medieval warfare at about 1400 but I played that competitively.

It's hard to tell exactly, because I've got a lot of time logged across multiple platforms, but I've got somewhere around 3500-4000 hours logged into Destiny 2 at this point.

It's my favorite game, and I hate it.

~1800 hours? Counterstrike GO

4500 in CSGO in 9 years and I'm not planning to stop any time soon.

I have no idea how many hours I put into WoW or SWTOR back in the day when I was playing them. For now, I've got 2,176 hours logged in Battletech.

Towerfall Ascension is the game my best friends and I got good at while playing to unwind. I have something like 1100 hours on steam. We've also played on Switch, other steam copies and ps4. The number could be as high as 2000 hours.

It's 2000+ hours in civilization 6

Guild Wars 1 with about 5k hours (i would need to look up the exact number)

Fallout 4's got about 325 hours on it, which is a lot for me because I hop around games a lot. However, I think it could be beat out if I knew my true numbers for Fallout 3 back when I pirated it before I got it on Steam, but they're probably both beat by World of Warcraft back in the day, I played up until after WotLK and I have no true idea how many hours I spent there.

I have undoubtedly put hundreds (if not thousands) of hours into Tetris Attack over the years.

Time: All my life Game: Life

404 in Stellaris...

any idle game