A world of vampires and the supernatural, inhabited by a vampire Batman.
- It is one of the alternate realities of the post-Infinite Crisis Multiverse.
- In Crisis on Infinite Earths: The Compendium, it was revealed that an equivalent universe existed pre-Crisis known as Earth-1191.
- One of the differences between Earth-1191 and Earth-43 is that on the former Batman worked alone with no indication of a Nightmare Robin.
- Characters from Earth-43 appear as playable characters in the Infinite Crisis video game. These characters are Nightmare Batman, Nightmare Catwoman, Nightmare Robin, and Nightmare Superman.
- No trivia.
- Characters from Earth-43
- Other things related to Earth-43
- Earth-43's Comic Appearances
- Reality Gallery: Earth-43