Mario is missing. Imagine being a young kid thinking this is Mario 3/4 (can’t remember where it fit in) and it’s a platformer not realizing it’s an educational game when you got it. What a pos, greatest let down of my life.
Paper Mario Sticker Star. Moreso disappointed rather than hate, but it left a bad taste in my mouth for the whole RPG genre (when I played it for the first time, I was 6, and thought all RPGs were like that) until I played the TTYD remake a few months ago
Probably Call of Juarez: The Cartel. I wanted to play the entire franchise back to back, but it wasn’t being sold on Steam, so I had to hunt down a copy on some key reseller. Boy, do I see why it’s not on sale anymore. runs like absolute shit, incredibly buggy, cheesy as hell and with some pretty questionable game design choices. Still, it was somewhat entertaining in a “so bad it’s good” sense, and it ties into the previous games in a fairly interesting way, so I don’t regret playing it. It was certainly an experience, but it’s a very bad game by pretty much all metrics.
I remember buying Duke Nukem Forever in a Humble Bundle, a bundle that I had virtually every other game for the price. I remember only paying $1 and I gave all that money to charity.
I played DNF. I still felt robbed. To this day I haven't completed it due to how terrible it is (if my memory serves me, I've been minaturised and I'm driving around in a tiny car? But the controls are awful and Duke now seems like a Trump like character whose charm is entirely devoid in modern times. It was already wearing thin back when it was released, too).
Now, I am not going to count games that I knew were bad beforehand but still deliberately played to see how bad they were, I am going to assume the spirit of the question implies starting a game and the realization of how bad it is slowly kicking in.
One game that came to my mind was “Conspiracy: Weapons of Mass Destruction” on the OG Xbox, but there’s probably worse games I played but have forgotten about.
I think Valve has the capacity to make some truly excellent stuff, but they only seem to care if it increases their wallets in a significant way.
After Architect, I'm very cautious about any Valve multiplayer game as it is bound to become infected with ways to extract money (or "value", as Gabe Newell puts it) from the customer.