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...

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.

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.

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.

Originally produced for OD&D and eventually Old-School Essentials, the "Silver" selling Hidden Hand of the Horla now makes its way to Shadowdark!

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

Gunslingers traveling across a dying world of magic and mayhem on a quest to find the Black Tower standing at the center of it all. The Black Tower Hack is an NSR ttrpg built on the Black Sword Hack and inspired by Stephen King's The Dark Tower series.

An old-school style dungeon Zine for OSE (B/X, AD&D), D&D 5e and DCC TTRPGs, inspired by ancient Rome, The Mouth of Mentius is like Caverns of Thracia crossed with Barsoom: a 73-room tabletop roleplaying mini-campaign of classic myth and weird fantasy

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.

Whispering Willows is a fantasy role-playing game about small animal folk who protect the quiet heart of a living forest. A realm of leaves, roots, and magic, where "Redwall" saga and "The Secret of NIMH" meet. Playable solo, co-op, or with a DM!

Triple-O is a tool for solo RPG players who want to invert roles and play as the GM instead of a character. Originally launched as a one-page solution, this new zine version brings more random tables, examples, and new use cases!

A Mausritter adventure collection of aerial escapades.

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

Step into your new flesh like borrowed gloves, and burn your fingers once again! Introducing new transhuman mechanics for the Mothership Sci-Fi RPG as part of Mothership Month 2025! Swap bodies, go insane, and see just how far from human you can become.

Malvolio: a new, luxury gated district on Prospero's Dream, its people slowly being corrupted by power of The Hippocrene... drink and you shall have what you most desire—but at what cost?

Three locations on Prospero’s Dream, each available as a standalone Mothership module: a railgun hidden in an observatory, a zombie-infested luxury resort and a slickworld corrupted by Eldritch horrors. New rules to play with psychic powers.

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 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.

Fight to free your home from the terrible rule of The Baron in this campaign 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)"