Cookie Clicker

Cookie Clicker is a JavaScript-based browser video game written by French programmer Julien Thiennot.
The point of the game is to bake cookies as fast as possible. To start the game, a player burns cookies by clicking on a giant cookie. One cookie is gained each time it is clicked. With sufficient cookies to use as currency, a player can buy items and upgrades that will bake more cookies. They will also increase the number of cookies per click. There is no true end to the game.