Games

Stardew Valley, Skyrim, and Halo 3 probably top my list. I dumped like 400 hours into Stardew during Covid lockdowns and a few hundred more after

Maplestory and Warcraft 3 almost certainly hold the first two places from an age gone by, but I don't have numbers for those.

For games that I do have numbers for, Anno 1800, Stardew, and Total War Warhammer (especially if you combine the trilogy).

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.

Kerbal space program

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.

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

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

2nd place is Oxygen Not Included.

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.

I quit a couple years ago for good, but my main account on RuneScape was created in classic as a kid. I had about a year and a half of PLAY time on the account, mind you the vast majority of that was back when you had the hard 5 minute afk timer, so that was at least moderately active play. Then if you add my ironman account I have nearly 1/15th of my whole life logged into RuneScape. I don't regret it, my whole friend group as an adult stem from those friendships I made online during my young teen years. However, as a modern game as much as I have a place for it in my heart, I found I had more of a negative addictive relationship with it. Maybe I always did, but I didn't feel a negative mental effect at a young age.

I have over 1k hours in The Long Dark and 7 days to die. Around 500 in space engineers, darkest dungeon, binding of Isaac, enter the gungeon, grim dawn, and satisfactory. ~300 hours in ToME4 and Caves of qud each. That's just steam stuff though, there are a lot of games that I know are up there that aren't on steam.

I'm sure I have at least similar numbers to 500-1k if not much higher in Diablo 2-3, and I'm sure more than a few thousand in wow though I lost my og account after wotlk because I forgot the details when I quit so I'm really not sure.

Star Citizen (no joke, I have put more than 2000h in the Alpha...). But because some people may say Star Citizen is not a game (I'm not agree with that statement), the second game I have played the most is warframe (1500h)

Easily Fallout 4 or No Man's Sky

Talisman

That's a though one... there are more games in my library that I haven't played than ones I did.

Maybe Fallout or Neverwinter Nights. Or Silent Storm.

Yes, I'm old. And waiting for my retirement to play all of those I haven't tried yet.

Top 3:

Escape from Tarkov: 14600h

Elite Dangerous: 3600h

The Division 2: 3200h

Pokemon, either Pokemon Sword or Pokemon Violet, I would have to look at the Switch itself to compare, but last I looked at either one it was around 400-something hours. Shiny hunting can be a surprisingly cozy time-waster, lol.

Planetside 2, Arma 3, and X4 Foundations.

Everquest by far. Then League. Then Diablo 2. I dont think theres any game that comes close to the total unrecorded amount of hours those 3 games have.

Dota 2 around 3500 hours. Rust 1100 hours. Monster Hunter World 400 hours. Binding of Isaac 350 hours.

Old-school RuneScape, 12k hours, another 6k hours on rs3 pre-eoc. Over the course of 21 years.

Warframe, by a big margin.

Persona 5 Royal

150 hrs and I'm almost done with it

R6: Siege at 1800, followed by Terraria at 1100. Terraria is the better game of the two.

Sigh... Rust

Skyrim and Satisfactory.

It's either the Sims or Animal Crossing.

I would love to know for sure. I've put hundreds of hours into Final Fantasy 8, Final Fantasy X, Morrowind, and probably Halo: Reach too.

XCOM: War of the Chosen

Overwatch (gave up on blizzard a couple of years ago though)

Civ all games and Apex legends with like 6k or more hours.

Apex is from day 1 launch day.

Craft the world, Valorant and AoE3

Final Fantasy 6, because I have played through it on SNES, PS1, Rom, then SNES again.... oh, and there's 500 hours in Slay The Spire. Maybe also Civ 3.

Factorio 5k+ atm

Unless we count pokemon, played that to death when I was younger, would be willing to say I have "young person time" amount of hours in the Gameboy versions.

World of Warcraft, EverQuest, and No man’s Sky

Probably Warcraft Rumble.

I have over 3K hours on rust on PC. If I include all the hours on Xbox when I was younger it would most likely be either destiny 1+2 or Rianbow Six Siege but Im not sure how to find all that info since alot of R6 was on Smurfs

Terraria. I don’t know why but the progression in the game feels so damn addicting. Mods add onto it by alot too

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.