The Deep Dark is a minimalist role playing game designed with modern theory principles to invoke an old school, or OSR feel during play. The Deep Dark is a role-playing game played around a table among a group of friends. Anywhere from 2 to 6 will do, though usually 4 - 5 is the best. During the game most players take control of a character and describe how their characters descend down into the depths of dungeons to fight monsters, overcome traps, and loot great treasures by using the rules provided in this book. One player takes on a special role: that of the Game Master. They set the pacing of the game, and act as an arbitrator of these rules. This booklet covers the rules of play for The Deep Dark. These rules are covered in detail under the individual headers: Dice Mechanics, Characters, Exploration, Camp, Combat, and special rules for the Game Master.