Sol

Humanity's origin system and the political, economic and cultural centre of human civilisation. Earth is home to roughly 150 million families, the wealthiest population in human history, while Mars hosts the largest urban concentration outside Earth. UN authority here is absolute and no private military operations are permitted; the Dyson Swarm provides effectively unlimited energy.

  • Habitable Population World
  • Urban Megastructure World
  • Uninhabited
  • Debris Zone
Art pending

Sol I — Mercury

Rocky

Tidally locked, with extreme surface temperatures. Automated mining operations extract rare metals. No permanent human habitation.

Art pending

Sol II — Venus

Rocky (greenhouse)

Crushing atmosphere, surface temperature exceeding 450°C. Only high-altitude research stations exist; surface operations require Salus armour at minimum.

Art pending

Sol III — Earth

Temperate terrestrial

Homeworld, recovered from the Collapse over centuries. Roughly 150 million families occupy private estates averaging a square kilometre each, the entire habitable surface divided among the wealthiest population in human history. Cities exist only as administrative centres.

Art pending

Luna

Rocky (airless)

Earth's moon, extensively developed since the First Exodus. Over three billion live in arcologies and subsurface warrens, running the heavy industry and services Earth's estate owners prefer not to see.

Art pending

Sol IV — Mars

Cold terrestrial

Fully terraformed over eight centuries, now breathable with open water. A population exceeding fifteen billion is concentrated in arcologies and industrial zones. Olympus Mons Arcology is the largest single structure in human space.

Art pending

Asteroid Belt

Debris field

Extensive mining operations. Ceres hosts the Belt's largest settlement, with thousands of smaller habitats scattered throughout.

Art pending

Sol V — Jupiter

Gas giant

Massive gas giant. Ganymede houses over a billion in domed cities, and Europa's population approaches 500 million around its subsurface ocean. Atmospheric volatile harvesting feeds Sol's energy and chemical industries.

Art pending

Sol VI — Saturn

Gas giant

Gas giant with an extensive ring system. Titan hosts over 500 million in domed settlements, the largest population in the outer system. Volatile harvesting from atmosphere and rings supplies fuel and chemicals across Sol.

Art pending

Sol VII — Uranus

Ice giant

Distant ice giant. Minimal development, automated fuel harvesting.

Art pending

Sol VIII — Neptune

Ice giant

Outermost major planet. Automated operations only.

Art pending

Kuiper Belt

Debris field

Outer system debris. Scattered outposts at the edge of the system.