Orbiting: A star

Location: Orion spur

Orion branch is so huge it is considered an extraterrestrial continent rather than a simple station/colony. Its architecture isnt the most beautiful there is, but surely is one of the most efficient ever-growing ship method.  Orion branch is a incredible mix of cultures and gets a new branch almost daily, with many satelite ships around it.

Orion branch is a capitalist democratic system, the rich gets privileged branch locations while the poor is secluded to inner/bottom areas. The ship is made of rectangular chunks of varying sizes, each with their own climate and characteristics.

Other than the obvious space context, oOrion Branch is very similar to modern day earth, with as many issues.

Orbiting: A gas planet

Location: Orion-cygnos

Alissa is a smal and historical space city. First made by humans wanting to escape the orion branch unfair system, it now welcomes thousands of different species in its branches.

Each of its branches is a huge hexagon, all of the same size but with different characteristics, sporting a different range of biomes. The first four focused on main earthian biomes, mimicing some continents, while the remaining ones are made to mimic other planet biomes.

Alissa is a socialist system ran by an AI. It values harmony over growth, therefore their expansion methods are extremely slow however internal issues are minimal.

Alissa has an old disconnected "island" branch molded like the ones in orion branch. The island still functions and was how the first constructors and the needed material arrived its location, being a way bigger in the past. Parts of the island are still parts of the main system. The island works as an imports/exports center for the system.