Star Wars: A True Epic Adventure
Rakata Infinite Empire
The Infinite Empire, the first known major galactic government, was founded and ruled by the Rakata, a scientifically advanced species that used their knowledge to conquer and enslave other species throughout the known galaxy, from Humans to Sand People.
Ruled for approx 10,000 years, used technology powered by the dark side of the force. Started to mysteriously die out, most withdrew into the Deep Core but there are still remnants out there that.