What is a game you love, but most people have forgotten or never heard about? Toontown Online is a great one, but it shut down in 2013. (A private server named Toontown Rewritten exists if you still want to check it out. A lot of people still play there.)
Well I'm not sure about games that prople didn't know about, but I used to be addicted to a facebook game called Cartown. Basically you 'drag race' your friends and get better cars and stuff. Lots of fun. Oh and this one got shut down as well :/
Sounds a bit like the binding of Isaac (without the creepy back story). I'll check it out. Know how much it is?
The Magic Circle Best game I've ever played. This trailer does a good job of showing what the game is about. You're the protagonist of an unfinished game and the lead developer is about to scrap you, so you have to work with the protagonist of an already-deleted game to produce a finished product despite the developers' wishes. It's super fun, and would recommend it to basically anyone.
Hm.. I truthfully think that this game is sorta popular, but not many people play it with Minecraft. Geometry Dash.
Never mention to me that thing you call a 'game' to me again. I lost friends because of it. Playing 1400 hours... (not me, them)