The Dungeon Master (DM) is the person who organizes and guides a tabletop role-playing game, such as Dungeons & Dragons. They create the game world, develop the storyline, and control non-player characters (NPCs) that the players interact with. The DM sets the rules and describes the environment, helping to immerse players in the adventure. In addition to storytelling, the DM facilitates gameplay by interpreting rules and resolving conflicts. They encourage player creativity and collaboration, ensuring everyone has a chance to contribute to the unfolding narrative. The DM plays a crucial role in making the game enjoyable and engaging for all participants.