Arcturus City

Arcturus City, also known as the Galactic City, is the capital city of Arcturus Magna, current capital of the Galactic Council and the largest city in the Xeler System and perhaps even the galaxy.

Notable for being completely encased in a tremendous dome known as a Biosphere, Arcturus City was established as a result of the Dracian Refugee Crisis after the Fall of Dracia, when the government of Arcturus Magna realised that it could no longer maintain its structure of civilisation within the small confines of the original structure.

History
Arcturus City started out as a small settlement, founded by Filius and Acritus, as an outpost for the Combat Masters' League away from Dracia. It was originally a single domed greenhouse and colony, with most of the settlement situated underground, centred around the temple that housed the Combat Masters' League headquarters on the planet.

The city experienced rapid expansion, though, when Dracia fell and millions of refugees flocked into the small settlement almost by force. With the government nearly collapsing under the pressure of the sheer amount of refugees, it was agreed to construct a series of temporary Biospheres to house most of the refugees.

When the government of Arcturus Magna realised, however, that even the small Biospheres were running out, the decision was made to construct a tremendous dome around the valley, which would provide the city with its oxygen, heat, and protection from the radiation. At its very centre, the tremendous Spire was built to house the Arcturan government.

Within ten years, the construction of the project succeeded, and Arcturus City has, since then, become notable for being the only city on a nominally uninhabitable planet, and not just that, but also being the largest city in the Xeler system.

Divisions
Arcturus City is divided into Sectors, from A to G, with each Sector being allocated a specific purpose and its specific location within the city. Most Sectors are adjacent to one another and can easily be accessed, while other Sectors are inaccessible to most citizens. The Sector letter marks how close the Sector is to the Spire itself, with A being the Spire itself and G being the outer regions of the city.

Sector A (The Spire)
Consisting of the Spire itself and its direct surroundings, Sector A is the highest-security area within Arcturus City and is protected by an immense reinforced Protodermis steel wall. Accessing Sector A requires clearance from the government of Arcturus Magna or from the Galactic Council. The Spire houses all the governement organs, including the office of the President of Arcturus Magna, the office of the Arcturan Council, the Arcturan Tribunals, and all Arcturan Ministries. It also houses the main Energy Reactor that provides most of the energy of Arcturus City.

Sector B
The Sector surroundings the Spire, primarily housing the lesser organs of the state as well as the press. It also houses the administrative offices of many large companies of Arcturus Magna and the living space of many high-ranking citizens of Arcturus Magna.

Sector C
The main civillian sector of Arcturus Magna, where most of the Arcturan economic activity tends to take place. Houses everything from small companies to markets and from civil housing to workplaces. This is where most of the Arcturan middle class tends to work and live.

Sector D (The Underground)
As its name implies, Sector D comprises most of the lower parts of Arcturus City as well as the sprawling complex located beneath it. Here, the lower-class citizens are housed and live. Due to their inaccessible nature, the government's authority over the Underground is far less. It is also referred to at times as "the Slums" due to its nature. Illicit activity also tends to take place here.

Sector E (The Industrial Area)
Situated outside of the main dome within its own separate area, Sector E comprises the area where most of the factories are situated. Shipyards, weapons factories, Protodermis steel workshops, all are situated within the Industrial area. It is not encased in a dome due to the nature of the gases emitted by the factories.

Sector F (The Space Port)
The outermost Sector next to Sector G (which is situated at the same level on another part of the city), Sector F comprises the entire complex of the Arcturan Space Port, housing the facilities for many spacecraft to arrive and leave from the city. It is also the headquarters of the Arcturan Star Line, the Astro-Liner service of the Arcturan government.

Sector G (The Agricultural Sector)
Sector G is the Sector in which most of the food and drinks from Arcturus City are produced. It is situated within its own separate dome accessible only to those who work within Sector G.

Trivia

 * Arcturus City was based off of Star Wars' Coruscant, as well as New York.