Starfield is vast, featuring over 100 star systems and more than 1,000 planets available for exploration. The main campaign area alone is about 20% larger than the combined size of the Fallout 4 and Skyrim maps. Each planet offers an area roughly the size of Skyrim or larger to explore at a landing zone, with procedurally generated surfaces expanding the terrain further. In total, estimations suggest Starfield could have up to 1,000,000 square miles of traversable area, making it one of the largest and most ambitious game worlds Bethesda has created. The game also requires around 125 to 140 GB of storage for installation, indicating its large scope in terms of content and scale.