Former members and servants of a now-defunct ancient empire, who ruled a significant portion of the galaxy with strange technology and metaphysical powers.
The Brutallion are a warrior species united in a cause of expanding and holding galactic territory. They operate on a "might makes right" ideology and a strict military heirarchy. Bio-technology augments their already formidable bodies for combat.
The Cyberborg are an inscrutable species of androids. They rarely communicate with bio-sentients and typically go about their business in a society of collective production and construction. They are technologically advanced, but not warlike and mostly isolationist in behavior.
This is an ancient species of enigmatic sentiences. You'll usually not encounter them as they are immobile and reclusive, but they send out biologically grown contructs to do their bidding. The most prominent of these are their bioships which they use to aggressively defend their territory and interests in the galaxy.