Demons

Demons are mentioned several times as a distinct group of sentient beings (in addition to the mindless things that you have to fight occasionally). Demons are residents of the Tower and can be given humanoid appearance such as what happen to Sabitha after the Fucklord found her.

It is unknown what the little girl parasite is a demon or different type of resident of the Tower.

Some mortals, such as Aka and Xestris, can become demon hybrids that are more resistant to the powers of the Incubus Kings and the Tower.