I mostly play roguelikes, which is to say there's a lot of games I haven't finished and have a great time with.

The last big title I played that was really enjoyable for the first half was unicorn overlord. And I even played through the first half of a couple of times. After that micromanaging the units gets annoying, so I put it down and haven't picked it back up.

That's the last game I really enjoyed that I didn't finish. But I like to buy games on sale and check them out, partially because I have an interest in-game design and game theory. So even if I only play a game for a few hours, if I get it for cheap I'm still pretty satisfied.

Day of the Tentacle

Adding to Fallout New Vegas, which others have mentioned, Skyrim. I got into modding but then sold my Xbox and haven't yet gotten into the fuller glory of modding it on PC. And, anyhow, I don't really think of it as a game to finish, just a game to play.

Also haven't completed BG3 despite liking it. I suffer in games what I suffer in life: the desire to experience it all and not close any options. Which is to say, I struggle with the reality of consequences and so avoid choices and commitments

Tears of the Kingdom. It took a few years to finish BotW though. I kept putting it down for various reasons.

BG3. I moved after I started playing and haven't had time to really go back to it and, at this point, kinda forget everything.

Doom 2016

Baldurs Gate 3, The Witcher 3, Red Dead Redemption 2 and many more. These games are all great and I liked them. But sooner or later I just stop playing. I can't even tell why. Maybe I am not a story gamer or the world's are a bit to big.

I've never finished even half of Final Fantasy 6. That game is fucking long. It's the only game I actually like that I have never beaten.

Well, and Nethack without cheating.

Sekiro. Either I would finish it or I would just break something. Most likely the second

Bloodborne.

I love the aesthetic and the setting, but the gameplay just doesn't click with me. It's clearly very well polished and designed, but I have never been good at third person melee games and soulsborne stuff cranks the required precision up too much for me. Instead I've just listened to dozens of hours of Bloodborne lore to get the experience.

Unfortunately Stardew Valley. But now I don't have much time and I lost my save file, so I would have to start all over again.

Mount and Blade, both titles Kingdom Come Deliverance Elden Ring Ghost Recon Wildlands

I've got untold hours into Ghost Recon, but once they released the permadeath ghost mode, it's the only way I play. I even made a youtube guide on how to speed run the first hour for various perks. Sure I could beat the game in normal mode, but it just seems too easy.

Dying light

Wolfenstein: The New Colossus.

Just doesn't hold my interest the way The New Order did, the stealth seems to be a lot worse and buggy which makes it hard to avoid enemy reinforcements from being summoned, and while the suit is cool that you get, the lowered max health makes the game a lot more frustrating. I've beat The New Order twice, I still have yet to beat The New Colossus.

Sokoban.

Darks Souls 3, Breath of the Wild, Tears of the Kingdom, Skyrim.

I love RPGs but hate boss fights, for some reason. Once I feel I've done enough exploration and character development, I invariably lose all interest close to the last boss.

Metroid Dread. I got stuck on an enemy and couldn’t go forward or backward. Basically met my match, put it down and never played again, which was my enemy, because I didn’t get better.

Tears of the Kingdom. It just got too grindy for me. I rarely play anything any more anyways.

Been meaning to go back and finish Subnautica. I had a good time with it but one sea moth got destroyed bc I couldn't find the zap key in time and I got ejected from another when it was really deep and couldn't go back down and get it without collecting more resources.

I enjoyed the game but I wish it was like 10% easier with QoL improvements, like having a bigger inventory, your ship respawns, etc.

Kingdom Come:Deliverance. I started playing when in had a 1080ti and got pretty far, then I tried to upgrade to an AMD 6900xt. The AMD card performed worse than my old 1080ti on that specific game, which I later found out because AMD had (maybe still does) huge performance issues with the CryEngine.

After a month of messing about trying to get it to play well I ended up returning the card for a 3070ti instead and just never picked up the game again.

I never finished Bravely Second. I loved Bravely Default, but for some reason I just stopped playing the sequel.

The legend of Zelda Twilight princess.

I finished the last dungeon, collected all the extra stuff and every side quest I could find. I literally got right up to the lead up to the final Gannon fight... Then I was like "meh, I'm done".