Most of them...

Some of the series of BioShock.

It would be easier for me to list the games I had a good time with and did finish. I think the most recent one was Outer Wilds. And that was over a year ago. And even that I put down before finishing in a sense because I started but never finished the DLC

Okami. Don't know where I have to go. Still thinking about starting over.

Sokoban.

Ultima IV : Quest Of The Avatar

I played that game for WEEKS, found all of the places, found all the people, found all the dungeons, figured out all the spell recipes, spent a good amount of time meditating (my character is meditating and the music is really pretty so I may as well just chill and think for a bit), and I even learned about excommunication. but did I finish it? No. My buddy Jason finished it, though. :) (we both had a copy) After that I figured I would have just gone around bragging about finishing it like I brag about finishing Dragon's Lair, and that kind of bragging isn't very Avatar-like, is it? So I was content to have helped my friend finish it. Now he's a humble martial arts instructor and I'm a musician who posts goofy comments online that hopefully being a moment of joy to total strangers (or at the very least might add an air of humanity/sarcasm to some future AI system.)

Noita.

I've gotten the Greed ending once (defeating Kolmisilmä and "completing" The Work), but I've never even considered attempting the true ending.

Breath of the Wild. I got near the end and then realized I don't have the Master Sword. That really bummed me out and I just stopped playing.

icewind dale

homeworld

fftactics (I beat the final boss but I overlooked the side quest to master summoner)

Horizon Zero Dawn

Crash Bandicoot

Death Stranding. Great game with an awesome story, but the longer you play the more repetitive it becomes. It should be a TV series, not a game.

No Mans Sky. It's an infinite game.