What are some good sourcebooks detailing demons/satanic rituals/etc.?

Before I can answer, what level are you?
We don't just tell anyone, y'know.

Not OP, but bump.
I'm playing a Lamashtu priest and I need ideas on how to make the game interesting.

>>46225554
My cleric has been raised to the eighth level. I think it's time that I learn how to REALLY cast spells.

File: Hammer of the Witches.pdf (1B, 486x500px)

1B, 486x500px

>>46225522

Book of Vile Darkness is probably one of my favorite splat books from 3.5, alongside the Lords of Darkness Faerunian splat, which it borrowed a few things from.

You can easily google up and download the PDFs, and the BoVD contains rules and ideas for things like sacrifices, demon/devil cults, and even extremely edgy things like torturing people to extract liquid pain out of them, while the Lords of Darkness has a lot of information on various cults and other evil organizations.

>>46225748
I guess throw Gothic Campaign Compendium in there as well.

>>46225636
saved, thanks anon

>>46225522
Kult

File: Necronomicon,_The_-_(Simon_Version).pdf (1B, 486x500px)

1B, 486x500px

>>46225522

hail satan

Heroes of Horror and the Elder Evils book had some neat stuff.

>>46225522
Lamentations of the Flame Princess has an "Eldritch Witchery" sourcebook. Check the OSRPG mega.