- Oberon (46,000 pop)
- Ariel (63,000 pop)
- Miranda (4,200 pop)
- Caliban (6,200 pop)
- Mab (3,100 pop)
- Chariklo (1200 pop)
- Dominion of Titania
- Titania (85,000 pop)
- Umbriel (22,000 pop)
- Sycorax (5400 pop)
- Helium-3 mining from Uranus' cloud layer, although this is completely dominated by the Alliance.
- Carbonates and Silicates are common throughout the orbit.
- Hydrocarbons and Fissile Materials are available in Alliance territory, but not in any commercially viable quantities on Titania. Combined with the Alliance's dominance of the Helium-3 mining of Uranus' cloud layer, the Dominion of Titania is forced to either buy from the Alliance or pay exorbitant costs from out of orbit.
- Metals are quite rare in Uranus' orbit, forcing both the Dominion of Titania and the Alliance to seek metals outside of Uranus' orbit. In the case of the Dominion of Titania, their primary source is Io and the Asteroid Belt. In the case of the Alliance, Triton is their most important source of metal.
- Titania represents the largest population in Uranus' system, but it has been slowly squeezed into a non-aggression position with regards to the Alliance, which controls the Helium-3 and hydrocarbon mining in the orbit and has leveraged these to create a potent military machine that is unmatched by anything in the Outer Worlds shy of the Sovereign Republic of Ganymede or the Commonwealth of Callisto.
- The Dominion of Titania has many friends, and both deft diplomatic bargaining and their shared history has resulted in the Alliance deciding to bypass them in their drive to expansionism, settling for mere commercial domination.
- The Alliance is one of the rare polities in the solar system that is in the throes of a cultural, commercial, political, and military renaissance. On the wings of its extensive mining of Helium-3 - the newest, most sought-after fuel in the solar system, and relatively rare in the Inner Worlds - the Alliance has built a politically unified, commercially vibrant, and militarily powerful combination that belies the relatively small populations of its worlds. Where the Protean League rules with authoritarian vigor, the Alliance's own paternalistic political tendencies are tolerated by its population in the name of security and commercial strength.
- The surge of populist fervor and commercial wealth has resulted in the Alliance embarking on what is referred to as The Trans-Jovian War, with Alliance ships penetrating Saturnian space. While the Alliance's military machine has thus far forgone directly attacking its primary targets of the Republic of Titan and the Rhean Divisional Authority, it has pursued a policy of non-aggression with Saturn's two smaller polities while at the same time rapidly building up multiple military bases of operation in Saturn's orbit and engaged in aggressive commerce raiding on Titan and Rhean interests. Military engagements have thus far been restricted to naval actions and marine landings on isolated outposts and moons, but everyone in both Uranus' and Saturn's orbits are readying themselves for the inevitable full-scale war that is looming on the horizon.
- Uranus is, along with Neptune, Saturn, and Jupiter, one of the solar system's gas giants. It is slightly smaller than Neptune, but considerably smaller than both Jupiter and Saturn.
- Unlike Jupiter and Saturn, Uranus - as well as Neptune - has a higher proportion of water, ammonia, and methane ices. These volatiles serve as a major target for mining operations in the orbit, along with Helium-3, a fuel that is becoming critically important in the solar system's economy.
- Uranus has a unique configuration among the gas giants in that its own axis of rotation is tilted on its side, making its north and south poles at what would be other planet's equators'.
- The icy mantle below the atmosphere is a slushy mix of water, ammonia, and other volatiles, and is essentially a kind of highly-conductive water-ammonia ocean, with pressures and heat so high that diamond crystals rain down through the mantle like hailstones to a the lowest layer of the mantle which is an ocean of liquid diamonds. Needless to say, the Alliance has flirted with several exotic projects to take commercial advantage of the mantle, but thus far every attempt has kept the mantle's bounty just out of reach of the Alliance's capitalists...
- Over a dozen - generally quite narrow - defined rings encircle Uranus. A smaller subset encircle the planet at a much greater distance than the others, and even host a few small moons.
- Uranus' atmosphere is (relatively) placid in comparison with the other gas giants, meaning that while it is possible to mine Helium-3 from the atmospheres of the solar system's other gas giants, Uranus has by far the easiest time at the exercise, though this is limited to some extent by the seasons, meaning that the Helium-3 miners migrate from hemisphere to hemisphere over time. This has resulted in the Alliance becoming one of the fastest growing commercial - and by extension military - powers of the solar system. While the Galilean worlds of
Callisto and Ganymede are currently more powerful, at current trajectories it is widely believed that the Alliance will eclipse both - combined - within twenty years.