An insidious island adventure for Old School Essentials.

“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!

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

A dark and whimsical OSR forest crawl adventure zine.

A zinepack of adventure modules 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.

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

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 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...

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.

FLAIL is an old-school, fantasy RPG where spells act up, weapons fall apart, and characters survive mostly through nerve and sheer luck. Designed for people who like single-session dungeons and short campaigns of 10~15 sessions. Low-prep, max play.

A new level has been discovered beneath the Castle of the Mad Archmage! On the western edge of the 5th level, new corridors have appeared, leading off into unknown regions of the dungeons. An expansion module for Castle of the Mad Archmage.

A 54 card set of TROIKA themed, traditional playing cards rendered in lush watercolour by Shuyi Zhang.

Twisting Unseen is a 36pg adventure module where crewmembers Build the Superstructure using long-defunct Gate tech. A Sleeper Crew Adventure inspired by BLAME!, Half-Life, and Pandorum for Mothership the Sci-Fi Horror RPG.

Windwaker meets Waterworld in this rules light procedure-heavy TTRPG for solo and group play. Explore a near-future hazardous but hopeful world, smashing Corpo Schemes while discovering Monsters and Mecha lurking beneath the waves.

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

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!

A bundle of Mausritter adventures where mice explore from abandoned forest shrines to subterranean cursed caves.

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 Mausritter adventure collection of aerial escapades.

Return to the forest of Pwyll from Tiny Fables for more dark, mysterious, and whimsical adventures for Mausritter.

An ambitious, interconnected, and beautifully illustrated setting for Mausritter, transforming an amusement park into a vast mouse-scale kingdom of peril, potential, and play. "Redwall meets Rollercoaster Tycoon (with a touch of danger and drama)"