The way I interpreted your title was "has not already been mentioned in this thread". Every game ever made has been recommended, idk how you expect people to answer this lol
From your original comment I thought you meant just not recommended at all (ie no ads, never seen a comment or video online, etc) and was like.. how would I have played the game if it wasn't somehow recommended, how would I have heard of it?
I think you're looking for smaller games that aren't constantly being recommended online, which is much less restrictive, haha
Not every person has seen every game being recommended or just mentioned on the internet. But they've likely seen every game, they played themselves, on the internet, except for pre-internet or analog games that they never looked up somehow.
If that's what you're looking for, that is an interesting question, but I'd assume that most answers here are just as incorrect as this one.