In Star Clicker, aliens have commenced an assault on the players' planet and they need to defend the homeworld. Players are in command of a starship, and on each turn, all players press two of the nine buttons on their cockpit dashboard to apply an effect, such as moving in space, shooting a ship, or activating a copy action. The pilots are tasked with finding hidden jammers that are blocking their satellite communications, all while Alien Spaceships are descending upon the planet. The goal of the game is to knock out the hidden jammers before an Alien Spaceship reaches the center of the planet and destroys the protective shield.