Creature:The Plox

The Plox, are half-failed creations made by the Grox. They were sent out to do mundane tasks, like fetch this, shoot that, etc etc. After a while, they decided they had enough and flew into the Galactic Core. The Grox, seeing this, went past berserk and sent the full force of the Grox Empire on the Plox ships. No Plox were harmed, miraculously. They soon ran to the far ends of the galaxy, hoping to escape their former master's rage.

Nature
The Plox, as they were developed by a incredibly hostile species, they grew to believe that the only way to survive in the universe was through aggression and expansion, or peace and expansion, later on. They are an ancient race, having been spacefaring for millenia while many other races were barely sapient.

Culture
The implants of the Plox remind them of their creators, and their evil. This is why other empires are unfit to roam the universe, because they don't stand a chance against the Grox alone. They are surprisingly good at acting with a normal personality without drawing attention to their cyborg anatomy, unlike their masters. They are a Diplomat (philosophy) empire. Despite the name Plox, they have never begged, but never said thank you, either. Nor any polite words. The curse of being made by the Grox, as they have a few of their master's defects.