Nightmare Realm

The Nightmare Realm, is parallel dimensional world and the former homeland of Bill Cipher.

Residents

 * Bill Cipher (ruler)
 * 8 Ball
 * Teeth
 * Keyhole
 * Xanthar
 * Pyronica
 * Paci-fire
 * Kryptos
 * Hectorgon
 * Amorphous Shape
 * Eye-Bats