Guild Wars 2, so far I put 4,800+ hours into it.

I like that it has so many kinds of solo and group content that I can just do whatever I'm in the mood for that day.

The Binding of Isaac

I have one game with 1000+ hours and that is Squad. It's the only online game I play anymore as it is the only game that has teamwork/communication (it takes be back to Battlefield 2 days) and none of the shit like battle passes etc.

My gaming habits are just playing lots and never finishing anything... but I have fun still.

Rocket League cracked that for me, crazy ceiling on that game.

Crusader Kings III is gonna crack it eventually…

Garry's Mod. Basically a gateway drug to hobby animation, and in some ways not so far off from the modding tools used to make it.

If you've watched stuff like Heavy Is Dead, they're usually made with it. Some more professional-looking stuff is instead made in "Source Filmmaker".

noita

I'm closing in on 2000 hours, and it's such a great game if you like challenges and discovery.

I started playing it after one of the devs said, "I don't think anyone will ever make another game like it."

It's a terrific implementation of a very pure concept.

I really hope that, despite the development challenge it may present, "noitalike" becomes a thing.

I think it's an engine that would integrate really well with ML world/asset generation, too.

Elite Dangerous. Well over 1,000 hours, especially with friends to explore the black with. Hard to get into, but it has so much stuff to do. It made me passionate about space! (And it's always fun reading articles about a far-flung star and thinking "hey! I've been there!")

Caves of Qud has nearly infinite replay value with all the random generations + mods. You can do nearly anything you set your mind to. Same with Project Ozone 3 (Minecraft mod). If you like goal orientated games that are multiplayer try Space Station 13. That shit is nuts, and I mean 13 not the 14 on Steam it doesnt have half of what the old one does. But the launcher is about to go out for 13 so get it while you can.

I found that Two Worlds had a lot of fuck around potential. You can infinitely combine weapons that are duplicates to strengthen them. I once killed every NPC in the entire game and used the resurrection spell on them so everyone was completely loyal to me even monsters.

If you can still find it. There was this online Pokémon game that was somehow realistic. You controlled your character typed ccommands for your Pokémon. And they were always alongside you when out of their ball. It was hardcore as shit. I got my cheeks clapped multiple tines trying to run to a different village by gangs of mankeys and caterpies. Nintendo is just drooling on the floor not doing this officially. It took forever to level, it was an extreme challenge to find stuff to evolve your Pokémon. Ugh I hope thats still out there somewhere.

A less spoken one nowadays that is also very fun is still the original Morrowind. Absolutely mind blowing how expansive that game is to this day. It is still just as legendary as it was back then even if it is a little dated. I actually come to like it when a game isn't guiding me on what to do in an RPG. It feels more immersive when I'm supposed to know what a Guar looks like.

Somehow ctrl+f failed to find this one, but Path of Exile is probably my drug of choice there. While I raked in 1k hrs with Dota2, I'm not sure I"d recommend it unless you really want to sell your soul to MOBA life. And it's not quite to 1k yet, but honorable mention must go to Satisfactory as it's well on its way to being game #3 in the 1k+ list with me.

Rimworld, and Football Manager (although they last one I played is 2020)

A long time ago now I spent over 10,000 hours on world of warcraft. I wouldn't really recommend getting into it now though, I think the magic is gone.

I think Destiny is the only game I ever put over 2,000 hours into, but Factorio might take the crown soon - 1800 and counting.

Tetris.

If you like space games, X3 and X4 can probably eat up lots and lots of your time. Space Engineers if you're less interested in flying, space economics and creating a supply chain (which X lets you) and more in gathering materials and creating all sorts of weird, funny or actually amazing stuff. SE is probably better played with at least 1 other person, possibly more, while X is exclusively single player.

Grand Strategy games can also obliterate your free time. Civilization 5, any Total War game. Hell, Age of Empires 2 can have very long matches if you play on huge maps and people have loved that game for over 20 years.

You can also go for Fallout 4 or Skyrim with extra content mods, like dungeons, quests or areas.

Personally, I'm just past 400h on Palworld, so I'd recommend it as well. I've played from start to "finish" some 4 times by now. Official servers will be wiped sometime in December, possibly with a new patch arriving, but you can always play single player and even invite a friend to play on your local save and never lose progress (unless the save gets corrupted, which can happen).

Team Fortress 2. There's just so many different ways to play the game with its combination of classes, weapons and game modes!

For some context I have insomnia. Stellaris isa game I've been able to fall asleep playing. Eventually it auto pauses but that's fine. It's a game I will always play because I find it peaceful and relaxing

Ark.

Huh, there's only like, 4 of these games for me total. TF2's still a bot-blighted hellscape as far as I know, my skyrim install is broken and the process of fixing it or just re-installing it will require a few days off, WoW is dead to me, and I don't really play warframe any more... so I guess Warframe wins by doing absolutely nothing!

Project Zomboid, Valheim

World of Warcraft

I am Not even close to 1000h but devinetively Factorio. Be aware, this game is a massive time sink and makes you play for way longer than you want. Especially with the new expansion you can spend enormous amounts of time in this game.

I've also mostly enjoyed online multiplayer games, but I play a bit of everything. I think these are the games I've played most in order it must be:

World of WarCraft - Been at it since a year or so after it originally launched. Played a lot of Guild Wars 1 before that, and also lots of other MMO games before and in between, but WoW is the one I always keep coming back to. Longest break must've been like 6-7 years around the Cataclysm expansion, and then back at it at the end of Legion. It's on the back burner now again because of another mediocre expansion, but I still check it out occasionally. I think I must've sank at least 5000+ hours (probably way more) into this game over the past 20 years.

Elite Dangerous - Been backing it since Kickstarter, had high hoped for the game and it was fun while it lasted. But I lost all hope in Frontier in managing this game. They're only focusing heavily on microtransactions, currencies and paid early access content now. Must've been about 1500-2500 hours or something, but I've been out of this one for a couple of years now. I had high hopes for the future of this game, but Frontier is a master of promising glory and delivering disappointment.

Squad - Last, but certainly not least for me, around 1400 hours playtime (including the testing branch client). Got into this game right when it launched into early access on Steam. Was very tired of the themepark rides that Battlefield and CoD were turning into, but didn't want to commit to Arma's milsim style either. Squad fits in between perfectly. Also one of the greatest game communities I've got the pleasure to be playing with, never had so much fun with completely random strangers. The mandatory voice-chat really ties it together to create amazing and fun moments. This game really taught me that voice chat in games can actually be good, and not just kids spitting insults.

That said, I have a lot of games on multiple platforms, that I usually won't ever hit a 1000+ hour mark on most of them anyway. Like I played Witcher 3 twice (and a half I think). But that's like only 150 hours or so total. And this year's favorite has been Helldivers 2 by far, but that's only been almost 300 hours so far.

Monster Hunter: Not all at once of course, but it's a game I keep coming back to. A friend in college introduced me to it on the psp and I was invested. I've had some version of it somewhere since, and I don't think I've ever removed it from my psp either.

Overwatch: This is from before the change, but it became a comfort game. There were no chats, and I didn't have to be in voice chat. I was low level (bronze), but I was content. I still play here and there, but I may get a match or two in before I leave out. Back in the day I could play for hours.

Sims 2 Skyrim Stalker franchise (including mods) Doom 2 Vrchat Arma franchise Halo franchise World of warcraft .... I may have a problem.

nothing will ever top my smash bros melee hours. I could start now and I simply wouldn't be able to do it even if I picked the game I already have the next most hours in. I am also entirely unlikely to add any hours to melee, but it still wouldn't be feasible.

Grim Dawn (currently playing Community Season 7! check it out @ https://grimdawnleague.com/, Dead Cells and Terraria (and most of that time unmodded - i just love building cozy or not so cozy homes).