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 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 new OSE bestiary of ancient horrors! Explore the Qliphoth, demons born from discarded divinity. Includes new spells, lore, and the occult scholars who dare name them. Knowledge is power, but every truth corrupts.
Loud, colorful, and cartoonish art book, showcasing the demonic forces living in their various hells, and the clerics who worship them.
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.
Delve the depths of evil with new demons and devils for your Old-School Essentials game, each with full stats and a small adventure showcasing these infernal entities. Perfect for Referees who need a few fiends in low places!
An Interdimensional Hell-Market for Old-School Essentials. Life is cheap here...but a good soul will cost you.
An official OSE supplement of demons, cults, and dark magic.
A shore leave location with new cybermods, recovery mechanics, black market items + more
Sword & sorcery fiction accented by great art. Our magazine explores the boundaries between the old and new, challenges where the genre is and was, and tells some kick-ass stories. The magazine is published in softcover and digital formats.
Fulfilled
A mind-bending escape room adventure exploring a wizard's manse. Master the rules of the dungeon and use them to your advantage.
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.
What if children book illustrators designed the Monster Manual? Find out in this fun-filled book of monsters and tables for FÄNGELSEHÅLA dungeons.
Raspberry Juice is an adventure for Fängelsehåla, a rules-lite game, that is loosely based on the plot of a popular Israeli children’s storybook called “Mitz Petel”.
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.
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.
Mothership space trucking 101, set in the star system surrounding Prospero's Dream
Explore Welkin Campus—a shifting, sprawling, drowned facility of rogue machines, failed clones, and paracausal tech—in this Mothership-compatible depth-crawl module.
A new indie game series from Central Michigan University Press launching with a lineup of three games: Princess with a Cursed Sword, Dog Eat Dog, and the Mountain Witch
Return to Netjeru in this updated, cleaned, and re-edited version of Graveyard of the Gods! Mine through the carcasses of the ancients...or die trying to make it rich!
The second edition of Vaults of Vaarn, the acclaimed science-fantasy adventure game.
TERRORS FROM THE COSMOS - SERIES TWO is a boxed set of 5 sci-fi horror adventure pamphlets for the Mothership 1st Edition sci-fi horror RPG game system, and easily adapted for play with any sci-fi RPG system.
Start a new adventure as a Gnawborn or one of the characters from Winnie the Pooh! It's up to you to help the Woods break a curse that's affecting everything from Heffalumps to Woozles. Tell your story with friends or on your own!
A terrifying game of overcoming supernatural creatures, played in the vein of pulp magazines and horror films from the 1900s.