Old School Essentials Referee's Book

Return to the roots of fantasy adventure! Grab your graph paper, prepare your fiendish minions, and prime your traps. Glory, wonder, and doom await!

• This book contains full guidelines for creating adventures and running campaigns, over 330 fearsome monsters, and over 300 wondrous magic items.
  
• Simple rules let imagination and fast-paced action take the spotlight.
  
• Clear, modern presentation makes the game easy to learn and quick to reference.
  
• 100% compatible with the 1980s D&D rules and with decades of classic adventures and supplements.

Core book 2 of 2. Referees also need the Old-School Essentials Player’s Book.