[quote=@LordZell]
<Snipped quote by Willy Vereb>

Of course I'll have to find one place in which my movement would start. As for my cult, I'm thinking either trying to bring back magic into power (with the secret motive to bring back an ancient lord) or something else still thinking on some details.
[/quote]I am not sure involving demons and physical religions (gods are real and active) is good for the setting but exception makes the rule.
So long there won't be suddenly a paradigm shift towards people conjuring heavens and hell in an ultimate conflict I think it can still work.

Also if you are a cult supporting magic-based culture and perhaps even the old values, I guess you can find plenty supporters. And if your long term aim is to summon a powerful demon lord or something similar to dominate the world that can work, too. So long there isn't some mysterious prophecy about the chosen one or ancient sealing rituals and rather this demon lord would be an enemy which can be overcome with sheer strength if people work hard enough.