Mark Rosenthal

Adventure in the underground world with the uplifted mice and rats who live there and those who rule those domains - the Rat Kings! Help us create this latest book for the Realms of Pugmire TTRPG in PDF and PoD versions!

Forged in blood by Professor DM and Roll For Combat, with contributions from Brandon Gillam, this is not another safe fantasy game. This is steel. Fire. Consequence.

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!

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.

Escape from the labyrinthine prison-hell of Carcerus!

A series of connected adventures starting in our mortal realm and descending into Hell itself.

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.

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

A hardcover compilation of archetypes, feats, spells, heritages, monsters, and more for Level Up: Advanced 5th Edition!

After 25 years of kicking down doors and battling monsters, a Second Edition of Munchkin is here with updated art and design . . . and gold!

Pugmire Unleashed: A Player’s Guide presents new options for dog characters, new rules for badger and reptile characters (and more), new location details, and three new adventures.

Build an unforgettable campaign setting! These decks offer inspiration through imaginative art, lists of evocative ideas, and simple sandbox/hex crawl guidelines. Plus Hex Minimap Tiles to build a map!

The second, improved, expanded edition of the best-selling Crafting Heritages and Cultures. This guide lets you build heritages, cultures and feats with mechanics compatible with the world's greatest roleplaying games using a simple points based system!

A hardcover compilation of archetypes, feats, spells, heritages, monsters, and more for Level Up: Advanced 5th Edition!

Seek treasure and glory in the age of Hyboria, rewritten for Shadowdark RPG. Five adventures hewing to the bones of Robert E. Howard’s public domain short stories.

Dive into 25 years of chaos and monster-slaying, all in one gigantic box, the Munchkin Big Box! Kill the monsters, betray your buddies, and hoard the treasures like never before.

A Cat Sourcebook for the Realms of Pugmire tabletop roleplaying game