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 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.

Escape from the labyrinthine prison-hell of Carcerus!

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 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.

This Demonic Adventure for the Old School Essentials system takes a party into a small pocket dimension of the hells. (A little Hellraiser and a bit of Silent Hill thrown into the Slaughterhouse sausage!)

A zinepack of adventure modules for Old-School Essentials.

An official OSE supplement of demons, cults, and dark magic.

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.

A 200+ page hardcover megadungeon tie-in with Goodman Games' Castle Whiterock. 5 hellish levels, 90 new monsters, new spells, patrons and treasure. Discover the secret history of Whiterock and reveal the world-destroying agenda behind it!

The ultimate mega dungeon accessory to bring unfinished areas to life with over 100 encounters! Plus, stretch goals can add 3 mega tables; Crazy Creatures, Randomized Rooms, and Lavish Loot. All the tools needed quickly craft your own dungeon!

Inkvein is a caving-centric megadungeon crafted for MÖRK BORG, drowned in inky horror. Emerging from the quill of ENNIE nominated Murkdice and published by ENNIE winning Space Penguin, this tomb of monochrome terror is not to be missed!

The Deepest Dark is a tragic, GM-less horror TTRPG about being trapped underground.

Blightfall is a low-prep, dark fantasy where mutated villagers risk further corruption for the power to defend their home. Focuses on quick progression, intriguing classes, and collaborative worldbuilding.

Rise, Wizards by Robin Ekberg is a dice-stacking, map-making, worldbuilding game of wizard hubris. All's Fair by Dillin Apelyan is an 18+ duet game about wanting to f*ck each other so bad you save the world about it.

A short rules supplement offering guidance on how to use communicable diseases in your campaign. Includes entries on 30+ IRL-inspired afflictions to give your PCs more challenges to avoid or overcome.

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

An earthquake brings together a lethal predator, a tribe of tunneling creatures, and the reanimated corpse of an alchemist who wants to make... wine? Inspect the suspicious cloud on the hillside, prevent a bloodshed (or don't), and report your findings

Ground to Dust is a roleplaying game for one-player that focuses on character choices as they manage dwindling resources to survive. The system is easily adapted to many genres and settings.

Live through the end of the world again and again with this set of three standalone roleplaying games for 2-5 players.

Build a map together as you explore a world changed by a magical apocalypse.