The largest moon in the solar system, Ganymede is bigger than the planet Mercury. It is tidally locked, with one side facing Jupiter. It is the most heavily colonized body in Jovian space; all of its colonies are either part of the Republic or under its protection.

The Castle

Officially the repository of all important statistical and economic data archived in the Republic, it is a poorly concealed secret that the Castle acts as the central collection and analysis point for Security Council Intelligence. All mesh traffic, surveillance systems, habitat security data, and media feeds are channeled here to be analyzed, classified, censored, and filed away for future use. The Castle itself is something of a throwback since they eschew AI-driven data analysis programs. In fact, the bulk of the work is conducted by actual human analysts. In orbit around Ganymede, security at the Castle is among the strictest in Jovian space; only a single dedicated shuttle ferry from Liberty Station is allowed to approach the station through the rings of defensive killsats. These shuttle rides are a nightmare of security protocols, with the average trip taking up to eight hours, with only two hours of transit time, due to numerous screenings, scans and interviews of each and every passenger.


Liberty is a habitat in two parts. Liberty City, on the surface of Ganymede, and Liberty Station, built into an asteroid in geosynchronous orbit above. Prior to the Fall, construction had begun on a space elevator to connect the two, but after witnessing the fate of the space elevators on Earth the Republic decided to halt construction and convert the materials already invested into further ship building.
Liberty City is buried a quarter of a klick under the surface of Ganymede, to better shield it both from the inhospitable conditions on the icy surface and the harsh radiation of Jupiter. A series of massive warrens carved into the moon’s icy mantle houses the main urban areas of the colony, surrounded by kilometers of tunnels and smaller chambers. It connects to the surface via a series of vents, elevators, and a well-used shuttle launch corridor hacked out of the moon’s crust. Numerous recreational armored dome parks dot the surface.
The capital of the Republic, Liberty City is home to the senate, and the center for most major industries and interest groups who hope to have a say in the running of the Republic. Numerous massive underground factories and farms produce material goods and food for the populace in addition to military gear such as exoskeletons and armaments. The city is also home to some of the Republic’s largest and most crime-ridden slums, pushed far out of sight in the remote tunnels and warrens.
Liberty Station floats in orbit above the city like a giant mutated spider shedding fleas. Kilometers of shipyard spars jut from the central asteroid where the actual station itself is housed. In addition to the dozens of ships being built or refitted, there is usually an estimated quarter of the total Space Force fleet present at the station or within a few hours’ distance at any given time. Liberty Station security is entirely under the Space Force’s authority; the CDC has no jurisdiction here. Traffic between the surface and the station, as well as other points in the Jupiter system, is one of the busiest in the entire solar system in terms of overall craft. Liberty Space Control prides itself on the high level of skill and low level of automation that goes into making it all run smoothly.

The Holy See

The habitat purchased by the Roman Catholic Church In Exile to establish their New Vatican is a large asteroid towed into orbit around Ganymede. Using a design similar to other Reagan cylinders but with vastly improved internal life support, the Holy See is not very impressive on the outside but is one of the most opulent Jovian habitats to view from the inside. Nearly as much a museum as the headquarters for a state in exile, the Church has been very successful in recovering or rescuing a number of historical artifacts, most of which have made their way to the New Vatican for display and preservation. The habitat is a major site for pilgrims to visit from around the solar system. Though established as an independent station, the Holy See is considered a protectorate of the Republic.

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