Vampire Race-as-Class for Every Edition of D&D

This is a class for every edition of D&D that allows you to play as a vampire, and gain levels in "vampire" as a class. In this way, it mirrors the conditions of the earliest editions of the game, in which you could gain levels in Elf, Dwarf, or Hobbit in the same way you could gain levels in Thief or Magic User. Has your character just been bitten by a vampire? Then you can advance in this class instead of your usual one. Do you just want to start as a vampire? Then this will also work. Not onl...