And finally, the least bad place an evil-doer can go, twin regions co-equal in all measurements, sharing the same planar area, Tanoryx and Batnor.
Tanoryx and Batnor, where every foul hideous vile bestial demon resides, and where every cruel tricky misleading beautiful demon resides. The ground there is made of black ash on one side and red stone on the other, the west wall is a wall of flames, the east wall is a wall of inward pointing blunt and sharp edges, the north wall is a giant ocean of lava, and the south wall is a boiling ocean of vinegar. Every object broken by violent force rains from above, the spent venom of every poisonous creature rains from above, and the spent breath of every dragon rains from above, demons spend all day and all night engaged in torments of inmates, fashioning whatever they need from the raining junk. Inmates spend their sentences being stoned, fried, baked, boiled, tenderized, salted, shredded, mauled, maimed, crushed, amputated, vivisected, eviscerated, impaled, sawed, bisected, torn apart, diced, eaten, drowned, deboned, broken, quartered, squeezed (as between two large stones), stabbed, shot through with arrows, javelin'd, burned, frozen, scalded, grilled, sliced, minced, and starved, enduring the double pain of being reborn from their own gore, or the triple-pain of being reborn from the dung of demons.
A video clip similating what being "reborn" is like. People in Tanoryx, Batnor, and Gehrax do this each time they are killed, and if being reborn from the dung of a demon, it must go from shit to mutilated shattered body parts, then from body parts to a body, so it's twice as long and twice as painful.
Fair warning, rather graphic.
youtube.com/watch?v=erpHSw3x5cE