The Black Spire Pact is a slipcased pair of PvP adventure books where one player is a mortal sorcerer, the other a demon lord. PvP Gamebooks use a streamlined system built on and fully compatible with Old-School Essentials.

Escape from the labyrinthine prison-hell of Carcerus!

A doomed starship warps through the abyss and crashes into a sword-and-sorcery world, unleashing cyborg demons and alien tech. Classic science-fantasy meets 90s-inspired radness as high-level heroes face the forces of chaos in the hell-corrupted wreck.

An Interdimensional Hell-Market for Old-School Essentials. Life is cheap here...but a good soul will cost you.

Loud, colorful, and cartoonish art book, showcasing the demonic forces living in their various hells, and the clerics who worship them.

An official OSE supplement of demons, cults, and dark magic.

The gates of the Abyss have been thrown open! We're bringing you unique wooden miniature demons, dripping with old school style, for OSE Month.

Unleash chaos with MÖRKTASTIC BEASTS, a nightmarish art book and Mörk Borg bestiary, featuring 150+ pages of twisted creations from eleven visionary artists. Back it to summon these horrors into your doom-laden adventures!

Turn your dreams into (tiny) reality with this easy-to-follow guide to building tabletop terrain. No complicated tools or expensive materials required. Experience the chaotic fun of making things!

Hello, Crawlers! We're so pleased to invite you to CROCODILE, Dungeon Crawler Carl's first official graphic novel expansion. Now get out there and kill, kill, ki--er, pledge!

Expand the world of Cloud Empress with three evocative new zines. Cloud Empress is the Nausicaa-inspired Ennie-award-winning ecological science-fantasy tabletop roleplaying game based on Mothership 1E's Panic Engine.

You're a regular person who has made the acquaintance of a dangerous unnatural creature. Are you a friend, a lover, food, or something else? This solo tabletop role-playing game is a direct sequel to the award-winning Thousand Year Old Vampire!