Galactic Mass

The remnant of a Galaxy Class Warship developed by the Ancient Sentients sometime during the First Era, the Galactic Mass was the celestial body in which the Human Imperial Alliance, Sentient Circle of Lords, Dynasty of Man, and other factions claimed territory. Believed to have been developed to build up Ancient Sentient battleship forces, the massive vessel, created out of the planets themselves, was powered by the supermassive blackhole located in the center. Over the billions of years since the disappearance of the Ancient Sentients (the only beings understanding of the technology that controlled the vessel), the massive warship has degraded from it's former spiral shape into a mass of planets, and spread out habitable planets, resulting in several powerful species warring for it's resources.

Terra System-
The capital of the Human Imperial Alliance, the Terra system was the location of the most important human planets, Earth, Mars, and Jupiter, which were the center of the Human Imperial Alliance's research, manufacturing, and political machines. The system was heavily protected and was once thought to be impenetrable, though it was invaded three times, with the Terra system's defenders holding the line the first two assaults. However, after the collapse of the Human Imperial Alliance, its location was lost to time. Yet still today, young adventurers still search the stars, hoping to find the lost remnants of their once great ancestors.

Archeon System-
The site of the infamous Archeon III disaster, the system of Archeon had defenses second only to Earth and the Terra system. Surrounded on all sides by the ever advancing Sentients, it guarded the Gateway world of Haradus, the shortest way to the Northern part of the Human Imperial Alliance. The Archeon III disaster, in which the Human Imperial Alliance attempted to create its own Gateway station, tore a permanent rift in the boundary between dimensions, allowing the long trapped yet still powerful Sentients to escape their prison in the Horizon Plane and enter the regular world. The planet itself suffered heavy damage, with most of its Northern hemisphere being uninhabitable due to the massive damage dealt in the Archeon III disaster. As protector of Haradus, it was the site of constant warfare between humans and the Sentients until it fell during the reign of The Betrayer, where it would never rise again. Today, the broken remains of Archeon III are yet to be discovered, but many believe the planet itself may have been destroyed.

Kosev System-
The de facto capital of the Northern part of the Human Imperial Alliance, Kosev II in the Kosev system was a highly influential planet, with a large amount of political and economic power due to it's many moons which held valuable resources. It was the most important planet in its own sector, yet it was not well known outside of it. This changed after the Archeon III disaster, which split the Human Imperial Alliance in two.