Tis the season of all things spooky: werewolves, ghouls, whatever that thing from Stranger Things is, etc. Oh, and vampires!

If you’re a fan of both tabletop role-playing games and blood-sucking immortal monsters, then Humble Bundle really has you covered this October. Its new book bundle, Month of Darkness, includes an absolute ton of books in PDF for the latest edition of long-running RPG Vampire: The Masquerade, including the core book, source books, adventures, and more. 

For those unfamiliar, the series is all about playing a group of, well, vampires, living secretly among humans. In theory it’s all about engaging in conspiratorial and often vicious politics with other vamps, wrestling with your own hunger and inner demons, and keeping your existence hidden from th…