Celeste. Like done others have mentioned, I just met my match, for too hard, and I lost interest.

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.

Doom 2016

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.

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.

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.

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.

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.

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

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".

Dying light

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.

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.

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.

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.

Some of the series of BioShock.