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

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 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.

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 dark and whimsical OSR forest crawl adventure zine.

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...

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

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

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.

Escape from the labyrinthine prison-hell of Carcerus!

A zinepack of adventure modules 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.

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