The most basic of the basic. There's one currency, one button, and one autobuyer. There's one prestige currency, and after grinding a couple dozen prestiges you get a new feature where you can no longer prestige and prestige just automatically increases by 1% of its own total. Once you hit that layer and max out the autobuyer, the game plays itself and spins its wheels forever. Yipee, I have 10^^1.71e9! Who cares?