For use in the Shudder Mountains campaign setting, this fourth-level adventure module pits PCs against a demonic force threatening to take over the oblivious villagers of Steller.

2025 ENNIE Awards nominated titles from Exalted Funeral

Forged in blood by Professor DM and Roll For Combat, with contributions from Brandon Gillam, this is not another safe fantasy game. This is steel. Fire. Consequence.

An ENNIE Award-winning city setting packed with books, maps, handouts, and immersive tools—everything you need to run unforgettable urban adventures in Darkenhaven.

The Eye of God is the first adventure in the new Apocalyptic Adventure! product line for MCC RPG (from Explore Dungeons). Designed to easily transition your players from Dungeon Crawl Classics (DCC) RPG to Mutant Crawl Classics (MCC) RPG.

Never face the darkness alone again - a pets and companions guide and resource book for Mothership 1E.

A Dark Transformation. Seven Nightbane® RPG books printed into Special Edition hardcovers for the first time ever and recorded into high-quality audiobooks.

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.

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?

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.

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

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

A dark and whimsical OSR forest crawl adventure zine.

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 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.

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!

Escape from the labyrinthine prison-hell of Carcerus!

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...

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

A zinepack of adventure modules for Old-School Essentials.

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.

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

Vault of Monsters is a 5e-compatible adventure rooted in British folklore, full of creatures with personality, lore with attitude, and encounters that escalate without asking permission.