This Deluxe Game Master’s Rulebook also contains the basic rules you need to play the game plus a few additions.
This book is completely compatible with ANY and ALL Chapbook Scenarios, and stands on its own, but is intended as a companion to the Deluxe Core Rulebook. While the Core Rulebook is focused on solo play the Game Master's Guide focuses on multiplayer--including with a GM and cooperative play without a GM.
In addition to rules, tips, and hints for Game Master’s, this book includes an original Chapbook Scenario and Adventure Module to get you started. After that you can download any number of the free products in the Micro Chapbook line for further scenarios and adventures.