It was a time of peace and prosperity. The Cylienians, headed by the god-king Alessia, flourished among the stars. Alessia once walked as a terrestrial man, over a millennium ago, but excessive genetic manipulation left him immortal. Not only this, but he was no longer a man; rather, he felt much more like a god as his title suggested. A dozen feet tall, several hundred pounds of steel cable-like muscles, he literally shook the ground when he walked. When he spoke, it was felt in the bones. He was truly a god.
And this was his empire.
The Cylienians had relocated to a faraway galaxy within the Aemor Supercluster and settled in well. Multiple planets had quickly been colonized and stripped of resources to further the Cylienian machine. The exact purpose of their exploitations was known only to a select few, but most willingly followed orders.
This was the Alessian Era, and the Cylienians were walking as gods among the stars. All seemed well...too well.