I’m sorry, but as a dnd player, I can tell you that there is nothing Satanic about DnD. Are there demons, devils, magic, vampires, wizards, and other occult things. YEAH! However, many classic occultists from the dark ages and renaissance were utilizing ceremonial magick that invoked the name of the Christian God. Early Christian priests did the same. We can argue whether or not these names invoked were used in the context of them being to the Christian God or not, but they were invoked. Even the grimiores of black magick, the ones that sacrificed animals, offering blood, calling on demons, and cursing or mind controlling people, they all invoked God.
DnD is actually Christian, or Christian-ish. The context is that you are an adventurer. You could be a warrior, a scholarly wizard, priest or paladin of faith, rogue, druid, bard, or whatever. You go around fighting traditionally evil creatures like vampires, demons, and necromancers.
Much of classic fantasy is drawn either from Norse mythology (Elves, dwarves, trolls, giants) or Christian (Demons, angels, good vs evil, heaven and hell afterlives) Dnd is basically a mix of both with a feel more towards the Christian or monotheistic side. The context of the world shows it. If it’s light, its good. If it’s dark, its evil. Absolute. You can’t have good orcs, only good half orcs. Granted there’s still heavy mythological elements, with druids representing what many call “The old ways” and my Christian occultism argument is obscure and esoteric. The divine is made up of many different gods. But trust me, it’s still very Christian. Like, polytheistic Christian.