My top 3:

1. RimWorld

2. Skyrim

3. No Man's Sky

If MMOs count, EVE Online at well over 12,000 hours over the last 20 years.

If not, nethack has probably consumed close to 1000 hours of my life.

I've been playing & modding Neverwinter Nights since 2005.

Almost certainly World of Warcraft. I don't think I even liked it for most of the time I spent playing it. I've been annoyed about the overall direction since basically Cataclysm, and IMO Burning Crusade laid the foundations for most of my major complaints, although I didn't realize it at the time. I have decided that I'm opposed to the "expansions add a new tier of everything that invalidates old content" model of expanding games. If creating diverse content that is still enjoyable at level 60 is too hard, then maybe games just don't need to be expanded indefinitely past their original level caps.

Guild Wars & Guild Wars 2

Steam says Borderlands 2, but I must've accidently left it running or somethingbecause I definitely haven't played it that much.

Next would be Sunless Seas and Frostpunk at around 200 hours which sounds about right.

Deep rock galactic. 1500 hours. 😬

Rock and stone!

According to Steam I've spent 5121 hours on Fallout 4.

Garry's mod by a wide margin. I've been playing for more than 10 years and accrued around 2000 hrs

Im not sure about total hours..

But several thousand in WoW. Back during release and for at least 5 years i played like 8 hours per day on avg. I would guess.

I would estimate 10000 - 12000 hours. Maybe a bit more.

I dont play it anymore though.

The game i have most time played on, on steam, would be Gfim Dawn. That game is amazing.

That would be:

Dota 2

Warframe

Path of Exile

Skyrim

Mass Effect 3

Dragon Age: Origins

Apex Legends

seems like the only game I ever play these days is the Halo Master Chief Collection.. just play through all 6 campaigns then start over again

I like games I can just pause and walk away from for a bit. Or just play while watching videos. So the hour counts are never really accurate. But I can safely assume in the past few years its Rimworld. It's my game I can play while doing other stuff. But if I crank up the speed it's engaging enough to focus on if I want to.

Lifetime totals it may be Minecraft though, I usually go back to it every few years. The urge comes and goes.

Probably Minecraft. But I haven't spent an insignificant amount of time in Garry's Mod either.

Mine should be Monster Hunter with roughly 2-3 k hours across the series. But single-game most played hours should be Final Fantasy XIV with a little more than 1.5k hours.

To be honest: Im not proud of any of this. Most of the time was accumulated when I was much younger and I wish I would've had the courage to engage in meaningful encounters with other people instead. Gaming used to be my main escape mechanism, which helped me get through some rough times, but held my personal progress behind by a good margin. A little playing on the side won't hurt though, nowadays.

I guess I can't know for sure, but I'd say it has to be Minecraft. I wish there was a way to see the hours I've spent in the Java Edition of the game. If it's not Minecraft though, my second guess would be Rocket League. When I add up the hours across the platforms I've played on, it comes out on top by a small margin.

For a single game it's Factorio. Steam has me at around 1600 hours.

For a series it's gotta be Civilization. I've been playing since I was in fifth grade. I'd go over to my friend's house when he wasn't home to play Civ I. I'd spend entire weekends in college playing Civ II and III. I had to have my GF hide my Civ V disk so I wouldn't miss deadlines. And now I'm on a full playthrough of all the new civs in the latest DLC.

Absolutely WoW, but Path of Exile behind that with 1900 hours...

Warframe, just hit over 2k hours. I have a plethora of other games that are over 300 hours each like Rimworld, Fallout NV, etc

My #1 is most likely rocket league, as i’ve ppayed 500 hours on pc, 300+ hours on switch, and many more years on the ps4 (since launch).

Second is minecraft, (or first, not sure), since i’ve been playing since 2011/2012.

Third is CSGO at 350 ish hours.

Off of what I have record of - Stardew Valley. 387 hours on Steam, just over 200 hours on my Switch, and my current file on my phone is at 87 hours - not including previous files that I do not have anymore.

That being said, there are games that I bet would be up there as well but they don't record time so I have no way of knowing.

Minecraft, which has over 200 hours on my Switch alone despite most of my play time being on PC or my phone.

Starcraft: Brood War Super Smash Bro. Melee. I don't play these two much, anymore, but when I was young and didn't have much else of a life, these took up an incredible amount of my time.

On steam alone, Skyrim. Oldrim at 1500+ hours, SE at 600+ hours. Then theres Skyrim on consoles, played on PS4, xBox, and Switch... probably easily doubles that number.

As a series, most certainly Pokémon. Young me played the Silver version countless times back in the day. I still do the odd ROM hack now and then.

As a single game, Skyrim.

The biggest one I can look at the numbers at id Warframe with about 1,500 hours.

Though I have a lot more than that in League of Legends when you count SR, ARAM and TFT together. I have like 5k Aram Games, which would be probably about 9k-10k Hours on its own.

Europa Universalis IV by a wide, wide margin.

No Mans Sky, I’m over 3,000 hours played

Rocket league. Easily 2-3k hours.

DISSIDIA NT on the PS4, at around the 920 hour mark. Guess it's sound to say that I was dedicated to mastering a couple of favourite characters for ultimately no reason. No one plays online and there were absolutely zero tournaments. SquareEnix eventually stopped supporting it.

Lol.

For Steam specifically, it's:

• Hades (214hrs)

• Octopath Traveler (111hrs)

• Skyrim (94hrs)

I should have guessed it would be Hades, but I'm really surprised to see Octopath up there instead of Slime Rancher, which somehow is way down there even though it feels way more fun. Since when has fun made something seem longer?

In general, without question:

• The Sims (played semi-religiously for almost a decade til the file became too big for my crappy laptop to risk adding any more GB to)

• Skyrim again (starting over just isn't the same once you've hit lvl 81, and I am grieving)

• Disgaea (bought 3 separate times because my sibling kept selling it to buy other things, and then a fourth when I got out on my own. Conservatively, I have beaten that game a minimum of 9 times. Would play again.)

I played WoW religiously from vanilla until Legion with very few breaks. I think I had over 3 years in game time on my main when I quit, with a few more years spread between alts.

Next would be Path of Exile, 3000 hours and counting.

After that, probably Dota 2 at 1200 hours

Single game would be Skyrim, series would be Pokemon or Harvest Moon. I haven't put a significant amount of time into a game or series in a loooooong time :/

Oblivion. It's been a few years since I sat down and added it all up, but between all of my characters, I had just short of 3000 hours into the game. Nothing else is even close to that.

I have about 4000 hours in CS:GO with most of my time being in community servers. About 1500 hours spent matchmaking, the rest split between surf and KZ.

500 hours is also my sweet spot I think - I don't think I have any games with significantly more than that. Here are the games I have ~500 hours in (that I can remember off the top of my head):

Breath of the Wild
Civ IV
Dark Souls
Monster Hunter World
Skyrim
Warframe

If entire series count though, it's gotta be Civ, by a landslide.

Runescape by a country mile. Spend whole days with that on in the background, grinding away. 15+ years and still play almost every day.

Up until a few months ago it was Factorio. Now it's Satisfactory 😵‍💫

Top 3:

• The Elder Scrolls IV: Oblivion
• The Elder Scrolls IV: Skyrim
• Pokémon (combined)

MMOs were always my thing. I'm almost glad I don't know exactly how much time I buried into World of Warcraft back in the day. I haven't touched it in 15 years and it's probably still in the lead. I play a fair bit of FFXIV these days but not like I did WoW. Asheron's Call 2 was a big part of my life for a long time but it's been offline most of my life.

Among recent games I've actively played for years, Rocket League and Minecraft are for sure at the top.