The RPG game "Traveller" [sic] has a method for creating fictional worlds using a variety of dice rolls. The original game was created in the early 80s, but the multiple editions since have created system of remarkable depth. One supplement even was able to generate biomes mapped to a dodecahedral sphere.
Size, Atmosphere, Hydrosphere, Population, Government, Law level, Technology, all would dictate the kind of goods available, the political structures, the economics.
It was so easy to generate systems that the game came up with an Atlas of the Imperium which featured thousands of stars. I can confirm that a sufficiently motivated nerd could rustle up a RPG subsector (with 20-40 planetary systems) in an hour.
Size, Atmosphere, Hydrosphere, Population, Government, Law level, Technology, all would dictate the kind of goods available, the political structures, the economics.
It was so easy to generate systems that the game came up with an Atlas of the Imperium which featured thousands of stars. I can confirm that a sufficiently motivated nerd could rustle up a RPG subsector (with 20-40 planetary systems) in an hour.