Too much filler; there's no real dinner.
I second this.
I think Diona, IPC, Vox, Plasmamen, Slimes are in a good place.
Skrell are herbivore humans who need fitted hardsuits, nothing unique.
Unathi have claws, are carnivorous, and have one square better darksight (weak to cold, resist heat), gloves/boots
Taj have 7 square darksight, claws, fur, have glove/boot things going on
Grey have 5 square darksight, take 25% more brute damage, weak punches, and have telepathy.
Kidan take 20% less damage, can't wear glasses, and eat diona nymphs (questionable utility, especially since a player diona nymph doesn't die as a result of being eaten, meaning they can still fight from the inside). Inaprovaline makes them high.
I rarely see the karma requirement races that aren't ipc or vox. Personally I wouldn't find it a satisfying use of the resource.
Personally I think that grey would be in a perfect spot if they had a hivemind.
Skrell are just boring, and I'm not sure how to make them interesting.
Unathi heat resist/Taj cold resist don't seem to be very significant, but claws give a good advantage if disarmed, and they don't have major weaknesses. The furries seem happy enough, and with Vulp.
Kidan are tough and have claws, but not being able to wear glasses limits their utility as sec, which would be their natural role otherwise. I would prefer being stronger vs blunt, weaker vs burn or toxic damage.
This would be a fair amount of coding work, cater only to snowflakes, and would probably have low use.