A race of cave dwelling generally decent folk living in permanent slavery to an overprotective computer they created.
Abaddoni are egg-shaped creatures around 80cm long, coloured deep red with black spots. Their main feature is a huge mouth which begins at the front of their "head" and stretches around a third of the body. At the end of each of their six short, crab-like legs is an inflatable gas bag which allows them to climb on walls and upside down. Due to their evolution underground, Abaddoni have no eyes; they mainly rely on smell and to a lesser extent sound and touch to navigate around the tunnels.
The entire Abaddoni species lives in a dictatorship led by an AI called "Mother". The AI was created to assist with the government, but slowly took over. Every newborn Abaddoni has a transmitter implanted into their brain allowing Mother to read their thoughts and possibly terminate them. Because of this, there is no social structure - all Abaddoni are slaves.