In de Blob: Revolution, the citizens of Prisma City are trapped as Graydians by the evil I.N.K.T. Corporation. As de Blob, players must draw or tap the screen in order to help free these Graydians by finding the best possible route within the maze of each building. There are three types of buildings in the game that players can choose from, including the Rescue Building, where players try to free as many Graydians as possible with no time limit and no threat from the I.N.K.T. Corporation; the Speed Rescue Building, where players aim to free the Graydians and receive a bonus for rescuing them quickly; and the I.N.K.T. Chase Building, where players have a limited time to attempt to free the Graydians before the I.N.K.T. agents enter the property and seize de Blob. Players can unlock new game features as well by increasing their ranking in three ways: A green ranking is awarded for freeing most of the Graydians in a particular maze; a blue ranking is given for rapidly freeing the Graydians; and, an orange ranking is awarded for freeing the Graydians in the buildings with the more challenging mazes.