Just Cause 3 is an open world third-person action-adventure game that is set on a fictional Mediterranean island known as Medici with Rico Rodriguez set as the protagonist. The map size is similar to that of the setting of Just Cause 2 with 400 square miles (1,000 km2) dedicated to the new setting. However, its volumetric terrain has increased to allow more verticality as a result of this, it is now possible for the player to explore subterranean caverns and to scale buildings more effectively and realistically. The world of the game is composed of five major biomes, with each having unique landmarks and landscapes.