Try making really small games at first, crank the graphics to the lowest they will go and then add as many other features as you can, then spend ALL your money on marketing. Good luck, and God speed
(Also continue spending lots of money on marketing after the game has been out for a while, I made a game from 1978 earn 80 million dollars in 1994 by spending lots of money on marketing),
Edit: The game got updated apparently, maybe this isn't the ultimate guide then, I have not played the new update yet. whoops