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.

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.

A dark and whimsical OSR forest crawl adventure zine.

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

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

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 zinepack of adventure modules for Old-School Essentials.

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!)

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?

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.

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.

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.

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.

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...

Escape from the labyrinthine prison-hell of Carcerus!

A 200+ page hardcover megadungeon tie-in with Goodman Games' Castle Whiterock. 5 hellish levels, 90 new monsters, new spells, patrons and treasure. Discover the secret history of Whiterock and reveal the world-destroying agenda behind it!

The real dungeon was the hobby we made along the way. Dungeon crawl your way through half a century of RPG history in this full-scale megadungeon for the DIE RPG by Gareth Hanrahan.

Inspired by life-story systems found in other TTRPGs, Life-Paths aims to provide mechanical and narrative boons and banes while adding depth to a character’s backstory.

Inkvein is a caving-centric megadungeon crafted for MÖRK BORG, drowned in inky horror. Emerging from the quill of ENNIE nominated Murkdice and published by ENNIE winning Space Penguin, this tomb of monochrome terror is not to be missed!

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!

Over 100 pages of fan-made community content for Triangle Agency. Thanks to your interest, we are now expanding into physical Reality!

Screaming Metal: Vector Soul is a mecha ttrpg about toxic lesbians piloting living machines for exorbitant amounts of money so they can live lavish lifestyles before being torn to shreds by the poisonous arms of hyperspace. Solo or competitive~

A rules-lite tabletop roleplaying game about neurodiversity