Hardcore Gamer: The main objective in Cookie Clicker is simple: click the cookie, and buy upgrades. And that simplicity is probably why the game has kept my attention for as long as it has. In the game's current v.0.125 release, there is no ending, so the upgrade progression is infinite (as far as I can tell, anyway). Each upgrade will give you a certain number of clicks (cookies) every five seconds. For example, purchasing a grandma will earn you five additional cookies every five seconds, and a factory will net you an extra twenty cookies every five seconds, and so on.