Jupiter
The Jupiter system is one of the busiest places in the Solar system. It is a turning point of commerce from the asteroids and Earth towards the Outer Worlds. The moons of Europa, Callisto and Ganymede are heavily populated, and the abundance of water ice made them ideal colonization candidates. The Trojan and Greek asteroids, two groups of asteroids at the lagrange points of the Jupiter orbit, are exploited by the Jupiter corporation. One of the main export of the Jovian system is heavy hydrogen, extracted from the Jovian atmosphere by robotic Zeppelins, and which feeds the nuclear reactors throughout all worlds.
Saturn
Saturn, with its spectacular rings and its myriad of moons, brought many people to its orbits. Hydrogen collection is also an important economic activity. Its upper atmosphere hosts a number of Cloud cities, devoted mainly to hydrogen mining. Titan is one of the only successes of planetary transformation, mainly because of the abundance of hydrocarbons that could provide a cheap source of energy. Although the cold prevents populations to live on the surface, underground cities house 6 billion people, making Titan the single most populated world after the Earth. It houses the Saturnian Parliment and the seat of the Outer Worlds Union.
Uranus
Uranus is also a Hydrogen mining world, and was the first gas giant to be inhabited itself with the construction of cloud cities in the 24th centuries. The larger moons are inhabited, but by relatively few people.
Neptune
Neptune is the gateway to the Kuiper Belt and beyond, where thousands of rocky and icy worlds host the great variety of humanity: isolation and distance mean that each of those worlds is a closed system, and many of the tran-neptunian colonies were founded by one eccentric or cultural group or another, seeking to flee the levelling forces of the Media Corporations that control mainly earth, but whose influence reach all the way to Uranus. Neptune itself has Cloud cities, like Uranus, but the main population is on Triton, Where bustling spaceport handle the traffic and people to and from the Outer Solar system.
the Kuiper Belt and scattered disc
The Organization of the Kuiper Associated Worlds, seated on Triton, is a very much unorganized association, and most of the Kuiper Worlds keep to themselves. They tend to be “Thematic” worlds, devoted mainly to one specific activity. Monasteries, breweries, instrument makers, games, sex, universities, libraries, ancient Egypt, celts, religious fudamentalists, cults, music academies, zen budist temples, martial arts schools, the whole diversity of mankind. Populated worlds reach far beyond the Outer Worlds, and the largest of those worlds, Yggdrasil, long left undiscovered, is also one of the furthest, lying in the space between the Kuiper Belt and the Oort Cloud.
