Greater Terran Union

The sole governing body of the human species, the GTU has expanded from the human homeworld in the Sol System to include a dozen neighboring systems and several colonies.

Sol
 Terra  - The human homeworld and capital of the Greater Terran Union. Terra has been known by many names in many languages, but has been universally accepted as Terra since the founding of the GTU.

Terra is heavily polluted and densely populated. Large tracts of land still bear the scars of the Huuvul invasion over a century ago.

 Luna  - Originally built to function as an indestructible weapons platform for planetary defense, the Terran presence on the moon gradually increased over a period of over a hundred years. It is now a warren of sublunar tunnels and chambers housing all manner of personnel and materiel intended for homeworld defense, including hangars, barracks, fuel refineries, armories, flight academies, etc.

 Mars  -

 Titan  -

Proxima Centauri
 Proxima  -

Tau Ceti
 Utopia  - Originally a barely habitable frozen world, Tau Ceti V has an equatorial taigan belt which is habitable. An orbital shield network has been created to protect from the solar storms frequent in the system, creating an alpine paradise. Tourism is Utopia's primary trade. It is a favorite vacation location for the GTU's wealthy and powerful.

Fomalhaut
 Dagon  - A pristine blue jewel orbiting a distant red giant star, Dagon's surface is almost entirely covered in a single global ocean. Vast algae farms and fisheries fill the waters surrounding floating habitats built to service the aquaculture. Dagon provides the majority of the GTU's food supply, distributed far and wide.