Oh my well the kingdom of heaven is within, and hell is on earth. Hell doesn't really exist but there is an underworld.
All I can say about satan: he doesn't exist. A scapegoat for your own/human evil, same as Jesus. Christianity is a control religion of fear, too bad when there could be some real teachings there. you have the christ within you. I'm sick of hearing of a god who killed himself to save us from himself who loves us but would see us eternally roast if we do not serve his ego who has no idea what it is to be a normal human? not omniscient or just cruel.
OkOk hypothetically the titans or fallen angels or demonized gods of other cultures, interdimensional aliens, or qlippothian entities, however you want to view the spirits that have been quarantined from this world, they are not in eternal damnation, we are always given a change to evolve, so do spirits and god(s) that are other than human.