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 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.

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...

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 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 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.

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.

“All the grisly bits wot weren’t enuff on their own” A true expansion to the Swyvers RPG. More city generator tools, more systems, more grit, more grub, MORE SWYVERS!

The next great campaign from the team that brought you the Words of Radiance Leatherbound, Isles of the Emberdark, and the record-breaking Year of Sanderson!

What if children book illustrators designed the Monster Manual? Find out in this fun-filled book of monsters and tables for FÄNGELSEHÅLA dungeons.

Mausolympics is a zine that details the rules for running a sports competition in Mausritter. Take a break from your usual Mausritter campaign and test your party against seven rival teams. Or pit two or more play groups against each other!

A Mausritter adventure where the culinary and the art worlds collide!

In the verdant and tightly-wound habblock known as the Grove, where each alley and every inhabitant is home to old traditions, the Antecedent Solarian Fellowship prepares for the three-day Solstice festival.

Mothership space trucking 101, set in the star system surrounding Prospero's Dream

PROSPERO'S DREAM is the new campaign setting for the Mothership Sci-Fi Horror RPG. It expands and augments the content in the award-winning module, A Pound of Flesh. The boxed set contains three zines, warden's tools, and so much more.

Creep through less-than-abandoned mineshafts, seek a seer atop a sombre gravestone, flee a treetop tea party without becoming cinders, and get caught in the crossfire of a raid upon a bomb-turned-vault in this bundle of mouse-sized adventures.

A Mausritter realm enclosed within an ancient stone wall abutting treacherous cliffs and pounding sea, full of warring factions, curious characters, and untold adventure.

A war-time adventure setting featuring two mouse communities facing an invasion from a cabal of carnivores. The top-secret folio will include mission pamphlets, maps, and a Field Guide detailing the setting, factions, creatures, and more.

A trove of hand-drawn items, weapons, & magical gear for your Mausritter games—plus a Crafting "Recipe" Manual to create more complex items! Perfect for tiny heroes & big adventures. Add charm, depth, and creativity to every session!

Fight to free your home from the terrible rule of The Baron in this campaign for Mausritter.