For consistency sake, let’s say that any game that’s >or=7/10 at what it’s trying to do while having a popular perception of being a <5/10 game in general would count. Want to specify that this is more about the perception of the game compared to, say, a game just being really niche.
My personal Go-to for this would probably be the Callisto Protocol, because while it certainly did have some troubles at launch they were massively overblown. IMO most of the hate for it comes down to people expecting it to be Dead Space 4 with a new name, ignoring the devs the multitude of times they said that it’s something else before release, and then getting mad when it released and wasn’t dead space 4 under a new name.
The problem I had with no man’s sky is that a large amount of the out of proportion expectations were a direct result of the developers over promising, rather than consumers just being over hyped.