A collection of starter adventures for Old School Essentials and Bree-YARC

From an empire’s ashes arise cruel warlords, savage hordes, and man-eating giants—all seeking the cosmic steel to become like gods—in this pulp sword & sorcery mega-adventure for Old-School Essentials.

Escape from the labyrinthine prison-hell of Carcerus!

A zinepack of adventure modules for Old-School Essentials.

A dark and whimsical OSR forest crawl adventure zine.

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 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...

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 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.

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.

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!

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

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.

The Dungeoneerium is a box packed with fold out dry erase RPG battle maps. Some of these huge maps also feature Loke's famous modular designs so you can combine them. If your table is big enough!

The forge of fantasy role playing, Gary Gygax's legendary dungeon and its environs. Here begins the journey into depths never before reached.

A massive megadungeon boxed set with 30 levels and a year of real-time adventure! DCC or 5E, regular or clamshell edition. Plus gemstone DCC dice!

Enspell your table! Rebuilt from the ground up, fully OGL-free, brand new content, refined for clarity and usage. Over 1,000 spells, 210 rune spells and much more. This expanded tome brings the power of arcane, divine, and runic magic into your hands!

From the birth of roleplaying to the discovery of the Forgotten Realms, from the rise of Basic D&D to the fall of Mystara, historian Shannon Appelcline brings you the story of OD&D, Basic D&D, and AD&D 1e in Designers & Dragons: Origins.

Take what you need! New equipment! Ready made backpacks! 14 new classes Reforged, mutliclassing, war dogs, and pack ponies. Unarmed combat, spell turning and more. Join us for this massive expansion and remember, take only what you need!

The City State of the Invincible Overlord is an epic collection of campaign resources for both 5e and DCC RPG. More than 800 pages of material, multiple poster maps, and a city’s worth of gaming!

The 2006 retro-clone of first edition AD&D, rewritten and reorganized for 2025! OSRIC 3 is easier to learn, with more examples of play. This is the beginning of a new product line for Mythmere Games, to include adventure modules and much more!