Astra

Astran Empire is the main antagonist and a hypernation from the first episode of "Galactic Tales" series by Asgard HD Mapping.

Story
Astran Empire was an instellar empire created by Earthlings. It conquered a lot of star systems near Sun. Then they went to the Kepler-22 system and landed on Kepler-22b. There they discovered the truth about themselves, that Earthlings are only a bad-ended clonning experiment of Keplerans, inprisoned on Earth. Astra gives mercy to Kepler and starts conquering an entire galaxy. When Astrans discovered that The Core is a powerful source of energy, they tried to use it, but Keplerans knew about dangerous is that. They made a rebellion and took over The Core Sector. They created an energetic shield to protect The Core. When Astrans were close to destroy all the shield generators, Keplerans used the power of The Core and exterminated themselves and the entire population of the Empire. Some alien races (and humans) survived The Great Extermination, while being in the Upper Borderlands Sector and created the first nations of the New Era - Nova Terra, Arrakis and Kamunsia.