Shit like that could work 10 years ago, not anymore. Not that it worked reliably 10 years ago. You essentially want people to spend all the money and time making a game, and then gamble on the algorythm and that Zukerberg will allow anyone to see your shit. And if you lose the gamble, enjoy your 7 buyers and no shot to get anything in the future.
No wonder nobody actually does that, and people publish on Steam where there are oodles of mechanisms to connect people with money who want a game and people with a game who want money.