Games

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!

Regarding the question itself, Starbound and Minecraft. Maybe Final Fantasy XII if I was to play it multiple times, as I take at the very least 100+ hours to finished it, and 250+ if I'm not in a hurry.

But regarding gaming fatigue, perhaps it could be a symptom of playing too much of only a handful of game styles? If you wouldn't mind, may I suggest to check some smaller games in length and scope, specially indies? Those tend to be rather diverse in their scopes and executions.

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.

In descending order: Skyrim Fallout 4 Starfield

Morrowind is a game that has extreme hours too, but not sure if it is 1000+ (yet).

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).

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.

World of Warcraft

Rocket League

5k hour in Tales of Maj Eyal :https://store.steampowered.com/app/259680/Tales_of_MajEyal/

Beat it in every difficulty once.. except the last one. Half of my time must be on trying that.

I have around 1700 hs in Destiny 2, and close to the same in Bloodborne. Over 1000 hours in the last 2 monster hunter titles. I've replayed resident evil 4 and castlevania sotn dozens of times.

So those are my most played games

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.

Civ 6, Fallout 4

Empirically, Final Fantasy 14. Also my only 1000 hour game since games services started logging playtimes in a more durable way. Only other games I can think that might have touched that time are Diablo II and UT99, but both of those playtimes are lost to the sands of time.

FFXIV, the campaigns alone are roughly 500 hours long and then Team Fortress 2

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…

Tetris.

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.

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 World and Don't Starve

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