I have others but people reminded me of this:
Simon the Sorcerer 3D.
My expectations were low, I only played it for consistency and thus didn't dislike it nearly as much as I would if I had been hoping for something in the same league as the first two. No, the reason I hate this game is the end. I couldn't get the game to end. Why?
Spoiler:because I don't have a fucking cd drive on my computer!
Thus NO way to finish the game. Guess they didn't think about amending that when putting the game out there for buying by download. -___-