I want to try and play some more games. That feels more fulfilling if you play games that you can finish and be done with.
So what are some good games that have zero (or close to zero perhaps) replayability? I'll start with my own suggestions:
Return of the Obra Dinn: Amazing mystery/detective game. However once you've played it, you basically can't play it again as you remember the solution already and the challenge of the game is trivialized.
Chants of Sennaar: Really great game about deciphering languages. However, once again, by playing the game once, you'll remember the languages and the game has no challenge any more.
Outer Wilds: Mystery adventure game. There is some replayability as there are perhaps areas that you can still explore, but largely once you figure out the mystery and complete the game, there's not much more to experience. Some people speedrun the game though.
All of the above games I value extremely highly even though I only played them ~8-10 hours.
Soma - This is such an amazing game, but it made me so mad that I would never play it again.
The Painscreek Killings - A really fun detective/mystery walking sim. You absolutely have to figure everything out yourself, as there is no hand-holding or hints given by the game. At all. But, like Return of the Obra Dinn, once you've figured out the mystery, there really is no sense in replaying it.
I was going to add some others before realizing I had a theme of mystery walking sims. I think that genre of games are pretty one and done kind of plays. They can be really great, but most don't give you a reason to go back and replay them, unless it's for achievements or something.
It's been a few years since I've played it, but I remember not being a fan of the female companion. To me it felt like she was just using the main character as a means to get to her goal and nothing more. I know that's an unpopular take (I've gotten into a couple light arguments over it), but I just could not stand her by the end of the game. The way she treated the MC just made the post-credits scene so angering.