The Ploxis are a bird-like race in Star Control 3.

Not much is known about the Ploxis race, beyond the short history described by a rebel captain of that race, who had spent quite some time in suspended animation, making his information perhaps outdated.

The Ploxis were at one point a race that celebrated diversity, and believed deeply in the idea of fairness and of the correlation between success and worthiness as a sentient. This liberal attitude was to prove their undoing, for it caused them to respect even those amongst their race who decided that the acquisition of wealth and power should be their primary motivation. By the time the peace-loving Ploxis decided to take a stand against these new thinkers, who called themselves the Plutocrats, it was too late. The Plutocrats had already made contact with the K'tang, and had swapped technology in exchange for servitude. With the hideously be-weaponed battlesuits of the K'tang operating as their shock troops, and through the use of various Precursor artifacts, the Plutocrats made short work of those Ploxis who wished to cling to the old ways. All that remains of the defeated forces are a few scattered individuals in suspended animation.

Although the K'tang claim to rule the Crux, it is in fact the Ploxis who are the true masters, hiding in the shadows and pulling the strings of other races.

The Hegemonic Crux is the enemy of the League of the Sentient Races, who are controlled by the player in Star Control 3.