Peukins are eccentric cyst-looking creatures that live in Dark Keigan. They originate from Luobnyka where stray organs have become self-sustained.

Peukins come in vast varieties. They can be stationary or mobile, aerial or terrestrial. Most Peukins consume Svibra as their main source of fuel. Others, like Knugian Peukins, have no means of consuming food to stay alive. They rely on a host animal (especially the type that originates from the earth) of the deuterostome kind to reproduce.