Planet-Sized Cities and Company Planets in Science Fiction

Planet-sized cities and company planets appear in science fiction when the writer wants power to be visible everywhere. A planet-wide city like Coruscant or Trantor makes an empire feel total, while a company planet makes the same point with an owner in place of a government. Both settings ask the same questions: who controls the air, the water, the housing and the work, and what happens to people who try to leave?

What is a planet-sized city in sci-fi?

A planet-sized city is a city that covers an entire world, with districts stacked on districts and very little open ground. The term ecumenopolis is used for this idea. The setting makes power feel total, because there is nowhere to go that lies outside the city's reach.

Two classic examples show the range:

• Coruscant, from Star Wars, is a world covered by city and the political center of the galaxy.
• Trantor, from Isaac Asimov's Foundation stories, is the capital of an empire that has grown into a single city across the whole planet.

Both show how a city can become a government, a factory and a prison at the same time. That mix is what makes the setting feel so heavy.

Why do company planets feel different?

A company planet replaces a government with a corporation. The company writes the rules, runs the shops, owns the housing and pays the wages, sometimes in its own currency. There is no outside authority for workers to appeal to, because the company is the authority. That is why company planets can feel more personal than a faraway emperor.

History has its own version of the idea. Pullman, Illinois, is a well-known company town where the firm owned most of the housing and shops, so workers' daily lives depended on the company's rules. Fiction borrows that model and makes it planetary.

The table below compares the three settings:

Setting	Who holds power	What feels wrong
Planet-wide city	A government or empire	Crowds, no open land and constant surveillance
Company planet	A corporation	Everything, from housing to pay, runs through one employer
Company town	A single firm	A narrow life where leaving costs more than staying

Which sci-fi settings use company planets?

Alien is a strong example. The corporation behind the mission cares more about the cargo than about the crew, and its agenda shapes every crisis. Avatar follows a corporation that mines a moon, and the local people and their land are treated as obstacles. In both cases, the company is not an offstage villain. It is a force that controls where people go and what they are allowed to do.

For the broader history of company towns, company towns in fiction and history explains why these settings still feel unsettling. Mars in science fiction horror shows how the red planet has been used as a frontier for horror, which pairs well with the company planet idea.

How do planet-sized settings change the pace of a story?

A planet-sized city can make travel feel long even when the distance is short. Each district looks like the last, and the sheer scale makes it hard to tell where you are. Writers use that to slow the pace and build dread. In a game, the same effect works well when the level design gives you clear landmarks, so the player always knows which way to go.

What do players notice first in a company world?

Players usually notice the small signs first. Company logos on crates and uniforms, rules posted on walls and prices that feel too high are often the first hints that someone else owns the place. Those details tell the player who is in charge without a single line of exposition. Good company worlds let the environment do the talking, then reveal the full structure bit by bit.

How do you design a company planet for a game?

Start with the company's needs. What does it extract, process or sell, and what does it need its workers to keep doing? Those answers shape the spaces: mines, refineries, housing blocks, administration towers and checkpoints. Then decide what the company gives its workers and what it takes back. A company planet works best when every space reflects a trade the player can see.

What about the people who live there?

Company planets are often about the people who live under the company's rules. Show different groups with different stakes: workers who need the job, managers who protect the system and outsiders who want something from it. Each group creates a different kind of pressure, and each one gives the story a different voice.

What does Karna add to the idea?

Dixotomia's Karna takes the company planet further. It is a company town the size of a planet in the Beta Virgo system, owned end to end by the corporation Tibet Innovations. The story is set in the year 2583, and the game's tagline puts the mood plainly: "It rains liquid plastic here." Karna is a useful closing example because it makes the company, the planet and the town one and the same. For a full breakdown of Karna and its company, read the dedicated guide. The Steam page lists the game's platforms and details.

Use a planet-wide city to show power as everywhere, and a company planet to show power as a contract. Decide who owns the water, the work and the way out, because that choice drives every scene that follows.