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.
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.
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!
Loud, colorful, and cartoonish art book, showcasing the demonic forces living in their various hells, and the clerics who worship them.
A zinepack of adventure modules for Old-School Essentials.
Escape from the labyrinthine prison-hell of Carcerus!
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 official OSE supplement of demons, cults, and dark magic.
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...
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?
An Interdimensional Hell-Market for Old-School Essentials. Life is cheap here...but a good soul will cost you.
A series of connected adventures starting in our mortal realm and descending into Hell itself.
A dark and whimsical OSR forest crawl adventure zine.
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.
Legendary TTRPG designer Monte Cook, creator of Return to the Temple of Elemental Evil, Ptolus, and more, returns to the megadungeon!
Fulfilled
A mind-bending escape room adventure exploring a wizard's manse. Master the rules of the dungeon and use them to your advantage.
A zine about the multiple ways the humble hex can be used at your tabletop RPG including a hexcrawl that allows you to string all those ways together
You wake up dead. It’s a lot to take in, but there’s no time for philosophising- you’ll need to travel between Earth, Heaven and Hell to figure out whodunnit, howdunnit, and whydunnit. A game about death, levity and finding out hard truths.
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 dungeon crawl/heist/mystery scenario in a fine dining restaurant set on the space station Prospero’s Dream.
A time-looping murder mystery set in a sandbox sector of The Dream. Can you solve a murder before it happens, or will time tear you to pieces?
A death-game module with a tight time limit and high stakes. Set in the ruined and plague-warped city of The Sink, the wealthy and powerful Hunters come to play a game where the rules are rigged and losing means death.
Explore Welkin Campus—a shifting, sprawling, drowned facility of rogue machines, failed clones, and paracausal tech—in this Mothership-compatible depth-crawl module.
Prospero's Mall & Outlet failed project is being consumed by its own Lucid-AR tech. Street crews fight back with graffiti, skating, and style, keeping the holo-horrors at bay.
