I came across this question:
This question is answerable, but it doesn't really seem to solve anyone's problems. It's a chatty question that, while answerable, doesn't seem to belong here.
Is this question on-topic?
The question is about games, so I don't see any argument that can be made that it is off-topic.
Is it a real question that deals with an actual problem someone is facing? That might be debatable.
Is it a clear and useful question? In my opinion, no. The term "flop" is never defined, it just gives some vague comparisons from a different genre. It basically seems to translate to "What game didn't live up to it's expectations the most?" That seems exceedingly vague to me, and even if there was a clear canonical example, it doesn't seem like knowing that example is going to provide any use to me as a gamer. If you feel the same, the appropriate response is a downvote, not a close vote.
The question doesn't seem "off topic." If I were to close it, the reason would be "too localized." There is a REAL difference. A question closed as "off topic" will cost the asker a downvote (two reputation points), whereas "too localized" doesn't carry such a penalty. Nor does "not constructive." Are there "degrees of badness" in close reasons?
Who (on this site) would benefit from the answers? A game designer (including potentially yours truly). Also, someone who viewed board and card games as potential "collector's items" might have an interest in avoiding a "flop."
Based on this, my own feeling is that the question is NOT "too localized," but I wouldn't quarrel with someone who though the other way. I would disagree with someone who thought that it was "off topic."