High Steelforge
Of the many vast arcologies scattered across colonized space, none approach the all-encompassing scale of High Steelforge, a city which covers a full hemisphere of its planet in a dense urban construct in many places more than a kilometer deep. It is by far the most populous settlement in Elyrion, and its economic and political influence are felt throughout the Nova Compact and beyond. From space, the planet's populated hemisphere has the appearance of a colossal spiral of glass, steel and concrete. The center of the city is a space elevator, one of the few known to be in existence, connecting the planet to its amenably positioned moon, which was largely hollowed out and converted into a vast spaceport by the UCS engineers who built the city.
Key Metrics
Population: 24,512,351,942,675
Surface Area: 401.3 million square kilometers (of which approximately 49.7% is densely populated)
GDP: 523.25 billion gigawatts
Day Length: 13 standard hours.
Average Surface Gravity: 8.13 m/s^2