According to Steam:

1. Rocket League: 2038 hours
2. GTA V: 260 hours
3. Project Cars 2: 234 hours

I haven't seriously played any of them over the last year though. RL has been run into the ground by greed. GTA V was always greedy, but was still some fun to fck around in. However it isn't really relevant anymore. PC2 was replaced for me by Assetto Corsa (5th place, 170 hours) which has great mods and better physics.

Also, this is only Steam. Combining Steam and Uplay numbers, Trackmania 2020 probably 2nd place with just over 300 hours. And LoL may also be top 3 even though I haven't played in years. Likewise Beyond All Reason may be getting close to the top 3, but I have no way of knowing since it doesn't track the playtime afaik.

2k hours on DotA2. No regrets. It’s an amazing game. I loved “studying” that shit. Optimizing my game.

I was never really that good but that isn’t the point

Path of Exile and Counterstrike both are over 1000 hours for me.

CK2 - 400h

Fallout NV (guessing most of this has been TTW) - 190h

Stellaris - 180h

Xcom 2 - 140h

GTA 5 - 99h

Cities Skylines - 95h

Skyrim - 90h

Civ5 - 85h

Xcom - 83h

The other games I've played are pretty much the standard play-through times. (< 70h)

Neverwinter Nights, probably 10k plus hours over the last 22 years, and Dead by Daylight (1666 hours).

Great games, both. I DM a weekly campaign on Neverwinter Nights.

Elden Ring is getting close to 1600 hours for me 😅 and I have about 1200 in Stellaris. But I probably played Jak and Daxter and Metroid Prime for thousands of unrecorded hours as a kid.

Rip battlebit

My top 10 (in order of most hours played) on Steam:

1. Cities: Skylines (669 hours)
2. Planet Zoo (523 hours)
3. Oxygen Not Included (400 hours)
4. Path of Exile (353 hours)
5. The Hunter: Call of The Wild (335 hours)
6. No Man's Sky (326 hours)
7. Planet Coaster (326 hours)
8. Elite Dangerous (323 hours)
9. Workers & Resources: Soviet Republic (297 hours)
10. Across The Obelisk (223 hours)

Over 6000 hours on Dota2, I became passionate about the esports scene, only to eventually realize that multiplayer competition has little to do with art.

It's ff14, and the actual playtime is none of your fucking business.

I've played "Unturned" a lot few years back. I have 2100+ hours in it. Realistically it'd be around 2000 or a little bit under.

Uh oh I have 517 hours in Planetside 2. That's only counting Steam game time, and not using the standalone client before I played on Steam or time spent in the closed beta.

I have almost 1,000 hours in Final Fantasy XIV and I have only finished the main game and first expansion. Although I mainly played before the first expansion came out and got back into it in 2023.

Other games include: World of Tanks Blitz with 755 hours on Steam, not counting mobile; Lord of the Rings Online with 714 on Steam, not counting standalone client before it was on Steam; Elite Dangerous with 687 hours; Star Wars The Old Republic with 572 hours on Steam, not counting the standalone client before it was on Steam; Elden Ring with 360 hours; Mount & Blade Bannerlord with 180 hours.

Honorable mention: The Elder Scrolls III: Morrowind on original XBox. I don't know how many hours I sunk into that, but it was a favorite of mine.

Probably most hours I've spend where with Conquer Online back in the days before mysteryboxes where introduced. After that probably puzzle and dragons.

Luckily after those games I learned to question my time spent in these games. (Basically just one day after grinding tower of gods for umpteenth time to spend my 1k stamina/energy, I asked myself wtf am I doing with my life, was I having fun?)

After that my most played games have been Grim dawn, Sacred2, Monster hunter world, No Man sky, Incredible adventures of van helsing then various 2d fighters like Blazblue, undernight inbirth and Granblue fantasy versus that I play on locals.

This is the first time I've ever come across another PS2 player out in the wild. I played on PS4 so I don't have exact hours but I stuck with it for over 2+ years back in 2017. One of my most played games for sure.

350 hours in FH5

Factorio - 1200hrs

TF2 - ??? But lots

Counterstrike source - ??? As above

Satisfactory - 150

Rimworld/hell divers 2 /wargame red dragon / both new xcoms - 100-150hrs

I would have high scores on other titles before steam started tracking playtime / pre-steam

Escape from Tarkov - 2500h Elite Dangerous - 800h Kerbal Space Program - 300h Satisfactory - 250h and still going up ^^

here are my timesinks.

there are slight caveats to that data. first of all, i actually have more time spent within Terraria, since i have about 144 hours recorded in tModLoader.

and second of all, i do estimate about 250 hours spent in Fallout: New Vegas as well. but since i own it on GOG and not Steam, i do not know for sure.

I've got over a thousand in Space Engineers, although some of that is from leaving it on overnight to refine materials. Or possibly exiting the game, but forgetting to actually leave the main menu. Does Steam track time when the computer is asleep?

But I've likely got close to ten times that number in Dwarf Fortress. I've been playing it off and on for close to a decade and a half now, and when I get into it whole days can just fly by.

somehow skyrim still reigns far above all my other games in the sheer number of hours i put into it (1200h), teenage escapism really picked Tamriel as my digital safe space huh, second highest is terraria with 520h

i bet if my time spent across the various versions and mod packs of Minecraft was counted it would surpass both, but alas, no counter for that (though just adding all my wynncraft characters' time together it's over 150h)