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.
Monopoly
Celeste. Like done others have mentioned, I just met my match, for too hard, and I lost interest.
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.
This may reveal me to be some kind of weirdo, but I’ve never managed to finish any Zelda other than the very first one on NES. I’ve gone back and tried other Zelda games over the years, they all seem interesting to start with but I just end up putting them down at some point and losing interest entirely.
I love a lot of single-player action RPGs and always have, but for some reason the most popular series of them ever consistently fails to vibe with me.