An insidious island adventure for 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?

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.

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.

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.

A dark and whimsical OSR forest crawl adventure zine.

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.

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 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.

A zinepack of adventure modules for Old-School Essentials.

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