I had a fun idea for a new pair of races, although I am unsure if anyone but us reads this. Regardless, here I go!
The Voidlings:
A race of energy beings. They are physical for all intents and purposes. They dissipate in a vacuum, and cannot pass through the air sealed doors of a ship, although for a party trick they could squeeze through a mouse hole. They are bitter enemies of Zoltan, enslaving them as living batteries.
Ability: Voidlings are able to integrate much better with electronics then any other race. Whatever place they are put, the bonus for the pilot is 50% greater. They must have a skill level to use this.
Drawback: Voidlings draw energy from their surroundings. An extra grid of power is required in any room they are in. This is the exact opposite of Zoltans. If they are in a room that does not use power, then one is deducted from the global grid.
Ship Tactic: They enjoy high power systems and lots of energy capacity starting out.
The Gorgers:
A gluttonous race of pig-like beings that enjoy eating. And they can eat anything, even metal and ships. Gorgers are the gourmands of the universe, although this includes lesser races. They are long time allies of the Slugs, although only because they 'taste horrible'.
Ability: Gorgers do not require oxygen.
Drawback: Gorgers emit a powerful stink. They suck the air out of any room they are in equivalent to a breach or open vacuum.
Ship Tactic: They enjoy using breaching strategies. This is not due to combative synergy. They also stink to themselves, and prefer venting it into space upon claiming a ship.