Have you ever wondered what goes on inside of a GM’s brain? Well, today we’ll find out! 

MEGA MASTER MINDGEON is an adventure that will take you through cerebral twists and turns you never thought you could explore! The GM’s mind is now a slave to itself, trapped in a loop of stagnant and repetitive thoughts. This prison is represented in the way it knows best: a DUNGEON (of course)! If once the forces of good and evil provided balanced ideas for creating adventures, NPCs, objects and fantastic places, today evil devils and demons populate and direct the entire neural complex like a factory. Little remains of the GM’s own consciousness and the forces of good embodied by celestial beings are survived only in small pockets of resistance in remote corners of the mind. 
What can the PCs do to save the GM from his own fucked-up brain? 

MMM - Mega Master Mindgeon is a megadungeon campaign for The True OSR - Obsolete Shitty Rules compatible with other OSR titles.

In MMM – Mega Master Mindgeon you will find: A MEGA DUNGEON complete with detailed illustrated maps and compatible with any old- school gaming system (perfect with THE TRUE OSR!); AN ENGAGING AND METATEXTUAL STORY peppered with ironic elements!; YOU WILL EXPLORE THE GM’S MIND and you’ll see firsthand how his crazy ideas are born into a coherent ecosystem and a society of nightmarish creatures; DOZENS OF DETAILED NPCs and harbingers of quests and useful information to reveal the most hidden secrets of the adventure; UNIQUE ITEMS featuring incredible properties that you can trade, build and upgrade!
Contains Mature Themes/Content.

THE TRUE OSR - MEGA MASTER MINDGEON (ENGLISH) - ADVENTURE OSR is categorised ROLE-PLAYING GAMES / CORE SYSTEMS / OTHER UNIVERSES and sold by l'Imaginaire, a store and specialised website.