Truls Gulbrandsen

A street-by-street, door-by-door gazetteer of the Troikan borough of Ripplegate with spider banks, fire cults, population adjusters, and hundreds of other small businesses all mapped and packed with stats, spells, and secrets for your Troika games.

9 self-contained adventures inspired by Dante's Inferno for the sci-fi horror RPG Mothership. Each circle features unique mechanics and stories. Play as standalone one-shots or link them into a campaign with an overarching meta-plot.

There is a moon that exists across space and time, in two different places at once...

A set of three horror roleplaying games, based on the popular Carved from Brindlewood mystery system, each playable in 2-3 sessions. Brought to you by Plus One Exp & Gauntlet Publishing.

Sandbox adventure through a strange world. Hexcrawl adventure designed for Old School Essentials. ENnie award winner for best interior art.

Loot the Company Vault (or unleash its horrors) in this zine-sized expansion/sequel.

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...

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

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 zinepack of adventure modules for Old-School Essentials.

Escape from the labyrinthine prison-hell of Carcerus!

Loud, colorful, and cartoonish art book, showcasing the demonic forces living in their various hells, and the clerics who worship them.

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.

Unleash chaos with MÖRKTASTIC BEASTS, a nightmarish art book and Mörk Borg bestiary, featuring 150+ pages of twisted creations from eleven visionary artists. Back it to summon these horrors into your doom-laden adventures!

A mind-bending escape room adventure exploring a wizard's manse. Master the rules of the dungeon and use them to your advantage.

A suicide-run heightcrawl for the Mothership sci-fi horror TTRPG. 22 floors to sneak, hide, and fight through in order to confront the true terror at the top - the corporate C-suite.

A media-fueled toolbox and adventure for the Mothership RPG. BREAKING NEWS drops you into Prospero’s Dream, where information is currency and factions fight to control it. Every lead drags you deeper. Whose truth will you print, and what will it cost you?

A Mausritter realm enclosed within an ancient stone wall abutting treacherous cliffs and pounding sea, full of warring factions, curious characters, and untold adventure.

A trove of hand-drawn items, weapons, & magical gear for your Mausritter games—plus a Crafting "Recipe" Manual to create more complex items! Perfect for tiny heroes & big adventures. Add charm, depth, and creativity to every session!

A Mausritter adventure where the culinary and the art worlds collide!

Will the brave mice of Sheltered Springs be able to climb Wretch-Wing’s tower and save their village? This zine contains a fully-mapped vertical dungeon, filled with treacherous obstacles and inhabited by friendly and fiendish critters.

A bundle of Mausritter adventures where mice explore from abandoned forest shrines to subterranean cursed caves.