Right now I can't recommend it because streamers and reddit made the game kinda trash, but Path of Exile. On steam I have 3k hours and I played on original launcher 5-10 more times longer.

I hope poe2 will make Poe great again.

Haven't been playing for a long time because I haven't set up the xbox in a long while, but Borderlands 1. Have been playing that game on and off more than a decade now. I don't think the base game (playthrough 1 only) on its own is 1000+ hours long, could be wrong, but it's long enough, especially with the DLCs. I think I've beaten playthrough 1 and 2 with 2-3 of the characters and have yet to beat all the quests with any of them because of a certain DLC boss fight quest.

It's a game I absolutely fell in love with. Started with the 2nd game, which my brother got, but I later got the 1st because I wanted to see how it was compared to 2 and I'm a bigger fan of the 1st game. Played the pre-sequel, it's fun but not as good as 1 in my opinion, and have no experience at all with 3.

DOTA 2 is my primary time waster, have over 3000+ hours on it. It's endlessly entertaining, because there is so much variability in the games. You have 4-8 spells depending on the hero, with 6 active item slots, which means once your team has leveled up, team fights can be a burst of seconds, or a 5+ minute long affair, with each tank employing different survival strategies to block damage, heal, or escape, just to heal and get right back in it. There are multiple different game modes, but are a little challenging to find and play. Still, it is the one game I play with the steepest learning curve. I don't think I saw myself as "good at the game" until I was around 1000 hours in 😶‍

Smite is the only other game I have 1000+ hours in. I started playing it as a break from DOTA 2, and as a way to connect with my little brother. It's a lot like DOTA 2, but far more simplistic. Each god has 4 spells, with no active items. Instead of left-clicking for movement on a map, you use WASD to maneuver your god. It's fun, and you can pick it up after like 30 hours. The different game modes are a lot easier to navigate than in DOTA, but it's also a lot less engaging. The updates and quests are all very simplistic. I was going to try out the new Smite 2, but after watching some game play, it looks... exactly the same as Smite 1.

I've only got a few. Several of them don't really track hours, but I know I've put over 1000 into them. Games like Super Smash Bros. (Melee, Brawl, and 4) and Rock Band 2.

Other than those, the only one I've measurably put 1000 hours into is Skullgirls, but Guilty Gear Strive will likely get there in a few years. Skullgirls is a game with so much depth that I can't imagine ever getting bored of it. If anything, I'd just lose motivation because I can't see the path to improving, but I'll definitely never see every permutation of strategies you can employ by combining characters together. Guilty Gear Strive has so many creative ways to use its expanded Roman Cancel system that any Evo highlight reel is full of creative ways out of situations that you've never seen before.

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.

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

The Binding of Isaac

Space engineers

Factorio: Nothing more to be said here Terraria: Just such a good game with devs that truly care about it. I've been playing it forever Eco: Serious love/hate with this game. I'm tired of trying to save servers that are on the verge of collapse because of capitalist ideas Morrowind: :3

The Elder Scrolls Online was my first 1,000+ hour game, but it's since been long surpassed by Dead By Daylight.

Play DayZ! so I can force feed you rotting bananas after I break your legs with the wrench so you can't get away! 😈

7 Days to Die for me

In order of most to least

D2 (thankfully there was tracker) WoW (i don't wanna know) PoE at about 4700 hours

Minecraft FTL Destiny 2

Monster Hunter

You should try Brighter Shores.

The original RuneScape developers and owners (i.e. Andrew Gower and his brothers) are back with a new game, at a new company, with an industry shattering $5.99/mo subscription price for all content.

No micro transactions, no pay to win, no outrageous DLC pricing, no bull shit ... just a fun game with many similarities to OSRS but also modernizations, formula improvements, and lessons learned.