The idea behind Spacebar Clicker is as simple as it can possibly be: you just click the spacebar. The main gameplay consists of continually hitting the spacebar in order to accomplish a certain objective, which may include achieving a high score, finishing a level, or just out-clicking your buddies. It is on purpose that the game takes a minimalistic approach, which is intended to attract players by virtue of its simplicity and the absence of complicated mechanisms.
In many cases, spacebar clicker starts out with a distinct objective or task. It may be a timer that is ticking down, a progress bar that has to be filled, or a predetermined number of clicks that are necessary to go on. In a short amount of time, players find themselves completely immersed in the repetitive pattern of pushing the spacebar, all in an effort to achieve a satisfactory feeling of progress. It is a tribute to the design of the game that such a simple action can be translated into an experience that is fascinating.