Personally there are a few games which left me very dissappointed, after hyping myself up for years in certain cases.
Divinity Original Sin: turns out I prefer more streamlined, less packed games (love Pillars of Eternity) and that coop play in a CRPG stresses me out.
Wasteland 2: I actually managed to finish this one but secretly I admit I was hoping for a better Fallout which I didn’t really get. New Vegas did the cowboy theme much better.
INSIDE: while the design was cool, it was just a ton of boring, easy puzzles in comparison to LIMBO, its predecessor.
I only played the beginning of the street kid and was so disappointed when the cutscene kicked in. Like that was it? 3 separate pathes that connect to themselves after what? Like 30 minutes? Was totally borked on Linux in the beginning anyways. I am waiting for the new patch. Hopefully this one is gonna be good