Games

If we're counting every Pokémon game as a single one, then that. Otherwise, probably Skyrim. I must have like 2000+ hours across all of its versions.

World of Warcraft and then Final Fantasy XIV.

And it's not even close.

MMO wise, it has to be World of Warcraft. Played it nonstop when I was young.

2nd place is Oxygen Not Included.

Rimworld

On and off for over a decade I've played the original Borderlands on xbox360, so definitely that.

I have over 1500 cumulative hours invested in No Man's Sky and Minecraft respectively. I am a casual gamer. I started playing Minecraft in 2012 and NMS in 2017.

Kerbal space program

The Bethesda RPGs: Skyrim, Morrowind, Fallout series (although most of the hours probably into NV, which wasn't actually Bethesda).

The Total War series, I have 300+ hours on Shogun 2, Rome 2, Empire, and Warhammer 2 each. Almost 100+ on most others. Probably have 1000+ hours on League of Legends too.

That I know of (3000+): Team Fortress 2

Probably(500+): Super Mario 3, or Apotris

And also Satisfactory. I think I kinda like it better than factorio

Over time: probably Contra on the NES, Tetris and Bionic Commando on the GameBoy, Operation Wolf and Sinistar in the arcade. DOOM, Duke3d, and XEvil on the PC. CS 1.6 and CS:S in college. The Gears series on the 360.

Then I had a decade or so gaming drought. More recently: Batsugun, Ketsui (Deathtiny and Death Label), Danmaku Unlimited 3, and Battlefield 2042.

Around 2.6k hours in CSGO. Quit playing CS2 shortly after release :(

I'm a bit ashamed of it, but Overwatch, I really enjoyed the multiplayer and played with some cool people I met in game. Stopped playing when OW2 released.

My second most played game is Destiny 2.

Maybe something is wrong with me...

Sadly League of Legends, probably Skyrim next, Overwatch and Terraria

I also play FGO since the NA server released(7 years ago) but I don't play more than 20min daily

Dark Age of Camelot. 6000 hours on my main character, and I had more or less ten characters… I’ll never beat that amount of dedication into a game.

When I played on PC more EverQuest, counterstrike, TF2, wow, Skyrim

After playing more on console ff14, elder scrolls online, pillars of eternity 1/2, and souls games (ds2, ds3, bloodborne, elden Ring)

I also like to play Indies and smaller games but those are the ones I keep going back to

Braben & Bells "Elite". The original one on the C64.

Europa Universalis 4, and it's not really a close margin. 1445 hr mark is when you've finally completed the tutorial and can start the real game.

Monster Hunter World. I usually stop playing games after I roll the credits, but I have been addicted to min/maxing in that series since Tri.

Sadly as I get older I game less hours, so most of my games on this list are older. LoL, wow, Dota 2, modern warfare 2 (2009), Wingspan(online boardgame), PubG battlegrounds, counter strike 2, terraria. I haven't played fps, wow, or dota for years, but they still dominate this list. It's funny because if I made a list of my favorite games, it would include almost none of these, except terraria.

Arma 3

Probably Warcraft Rumble.

KSP

Minecraft, and the number is still growing.

Factorio.

Minecraft, Factorio, Satisfactory and Dyson Sphere program have the most real playtime, but idle games have the top slots.

STALKER and The Elder Scrolls probably hold the record. I may have wasted even more time in my life on World of Warcraft, but I feel like that doesn't count since you're just in a fucking trance for several years until you finally break away.

The game in my Steam library with the most hours played is.....PAYDAY 2.

But I didn't actually play a thousand hours of it. In the late 2010s, the heat in my condo barely worked and our self-managed association refused to acknowledge it because "nobody else [was] having problems with their heat." I had all the windows plasticed up with heavy blankets literally nailed to the wall. I had to abandon the living room and bedroom entirely. I emptied the smallest room (12x10) and moved my mattress and desk in there...In addition to the playpen for my two rabbits that took up the rest of the free space.

You might be wondering what that has to do with PAYDAY 2. Well....the game revved up my video card to max on the main menu so my PC became a supplementary heat source at night...

Good times. Thanks, PAYDAY devs!

ETA: In the spring, the guy who handled yardwork noticed the flowerbed was kind of sinking on one side of the building. That's when they discovered a leak in the radiator line...small enough that 11 units didn't notice but big enough for the water pressure to not reach the farthest unit from the boiler....the unit I owned...

Terraria

Craft the world, Valorant and AoE3

EverQuest was my jam back in the day. It ruined highschool for me. Nearly 5 straight years of farming and raids.

I wouldn't do anything different though. I met some awesome people that got me through the awkward years of high school when the internet was still somewhat new.

When I was a teen I played WoW from vanilla through Cata... Had over a full year of in game /played time on just my main.

...and I made a lot of alts.

100% full-blown addicted.

Blizzard is actually the one example of enshittification that I can actually be thankful for - I didn't really ever quit; they just stopped supplying my drug of choice. They definitely had the power to keep me enthralled, but instead shifted to a younger and younger target audience as I was ofc aging the opposite direction.

The Kung-Fu-Panda xpac trailer was finally my cue to accept that my dealer wasn't going to provide that fix anymore.

Then I ~~started making healthy life decisions~~ discovered Ark >_<

Edit - ...Ark owned my life for a bit, too:

I was gonna check my Steam library for the numbers, but the real answer probably is Shattered Pixel Dungeon on my phone.