Demons
Demons are fearsome and loathed creatures that can be found trespassing on Arthos, seeking to trick or torment the weak and desperate. The more intelligent and cunning of demons seek to bind mortals to contracts that will promise the demon pieces of their soul in death, while others act as foot soldiers for Demon Lords seeking to extend their influence from the fractured Hells into the Mortal Realm of the Material Plane. The most powerful of these demons are the Nine Demon Princes, who rule over the nine principalities of the Hellstack.
The Hell King, his name now lost to history, once ruled over a single united plane of Hell until the Age of Lucidity. Beneath him were the Nine Demon Princes, each with their own principality. It was during the Age of Lucidity that, for reasons unknown, the Hell King removed his crown and sundered the united plane into three main plateaus before piercing a hole through their center. Within this central chasm is a swirling tempest, and at the eye of the storm, the Hell Crown. The Nine Demon Princes were left without a ruler, and most immediately began to vie for this crown. Some of the Princes are more preoccupied than others by this quest, while others have their own agendas which they favour over all else. With their combined power the Princes could overcome the magic of the Spirit Tempest and seize the crown, but by their very nature they are too mistrusting of one another to ever allow that. The crown remains untouched to this day as the Princes battle over which among them is worthy enough to wear it, using mortal spirits as fodder in their unending war. Demons cannot be born so they use mortal spirits as fuel for resurrection and battlefield healing among other things.
Each layer of Hell is divided into three Principalities, with a Prince (or Princess) at its head. The following is a list of the known Princes: