The Neo Cults worship pagan gods, some ancient and some new. Some are benevolent, like the Druids, and some are malevolent, like Children of Mephisto. The cults have no central authority. They are not actually a faction, but just a convenient way to classify practitioners of religious magic.
Greek, Celtic, and Scandinavian pantheons command the largest number of followers among the neo-cultists, with Native American and Hindu gods being a close second.
Cults exclude the following major religions and denominations: Buddhism, Hinduism, Judaism, Christianity, Islam, and Taoism.
Cults can be loosely classified by their beliefs:
Classical.
Greek and Roman Pagans, worshipping one or more deity or creature from the classical mythology.
Traditionalist.
Scandinavian (Viking) Pagans, Druids, Volkvi (Russian Druids), Japanese Pagans, Chinese Pagans, etc.
Sect.
Odd offshoots of major religions, rejecting the doctrine of the majority, such as Satanists and Order of Broken Cross.
Modern.
Cults based on an entirely new belief system, such as presence of extreterrestrial beings.
Many a cult is led by a totally non-believing con man. One can expect the world after the magic apocalypse has similarly minded grifters.
But in a world where magic sometimes works, a cult leader would be expected to produce results, and not just those available by stage magic.
Disillusioned followers have been known to get testy, so it would seem that exposed fakes could be separated into the classical pairing of the quick or the dead.
Are these pagan gods real because they have followers? Or they’re real whether or not people believe in them? I mean, apparently, there’s some truth in them because they’re believer can wield power from them, right?
I think it is a chicken and egg sort of question.