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.

HELLCRAWL is a jumbo sized hexcrawl set in Nethria, the Burning Hell. This infernal module is built for Old-School Essentials and will throw your unfortunate players down into the darkest depths of hell.

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.

Will you poor souls become heroes, or will all Hell break loose in the final installment of Afterthought Committee's Level-0 series for Old-School Essentials?

Escape from the labyrinthine prison-hell of Carcerus!

A zinepack of adventure modules for Old-School Essentials.

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

A new OSE bestiary of ancient horrors! Explore the Qliphoth, demons born from discarded divinity. Includes new spells, lore, and the occult scholars who dare name them. Knowledge is power, but every truth corrupts.

A series of connected adventures starting in our mortal realm and descending into Hell itself.

A city-crawl through a profane realm of the subtle divines of Vedic myth, created in homage to City-State of the Invincible Overlord and serving as a meta-commentary on syncretism, hedonism, and orientalist tropes on India across the history of gaming.

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

This Demonic Adventure for the Old School Essentials system takes a party into a small pocket dimension of the hells. (A little Hellraiser and a bit of Silent Hill thrown into the Slaughterhouse sausage!)

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.

Delve the depths of evil with new demons and devils for your Old-School Essentials game, each with full stats and a small adventure showcasing these infernal entities. Perfect for Referees who need a few fiends in low places!

A low-level adventure set in the plagued wilderness and abandoned mines of a crumbling dwarven mining town. Demon-hunters march in force, strange beasts stalk the woods, and cultists dig for something still buried in the silver mine...

A dark and whimsical OSR forest crawl adventure zine.

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

Like your adventures a little WEIRD? Three-eyed goblins, psychic plants, and a carnivorous cauldron (among other things) await you in this Castle Whiterock tie-in adventure for DCC RPG and 5th Edition.

Does your party want some great loot? Look no further than the heirlooms and lore of steampunk gnomes, as your party helps reclaim a merchant's long-lost heritage? In conjunction with Megadungeon Month: Steamlander, a DCC - Castle Whiterock adventure.

Witness the Children of Bobugbubilz, driven into the depths by an angry god, claw for the surface... to feed. For 5E and DCC RPG. Compatible with Castle Whiterock from Goodman Games and part of Mega Dungeon Month!

The Madness of Metronax is a low-level adventure for Dungeon Crawl Classics and 5e that increases ties between Castle Whiterock and nearby Cillamar. And it has magical giant ants!

The ultimate mega dungeon accessory to bring unfinished areas to life with over 100 encounters! Plus, stretch goals can add 3 mega tables; Crazy Creatures, Randomized Rooms, and Lavish Loot. All the tools needed quickly craft your own dungeon!

This 48 pg book features NEW illustrated plates (by C. Aaron Kreader) of each level in Castle Whiterock. Now 5e or DCC judges will have rendered handouts, unique notes from the original designer, and remembrances of the greatest dungeon story ever told!

Enhance your Castle Whiterock campaign with two new tie-ins: When Dying Unicorns Dream, a new adventure for DCC & 5E, and The Castle Whiterock Adventurer's Journal, a deluxe system-neutral player companion for chronicling your descent into Whiterock.