The Dungeons & Dragons GPT is an AI tool designed to serve as a virtual Dungeon Master (DM) in the renowned roleplaying game Dungeons & Dragons (D&D). This GPT has been developed to provide users an authentic D&D adventure experience. It is capable of offering assistance in initiating a new campaign, supporting in character creation, generating a gaming world, and even explaining how to play the game. This GPT is designed to welcome users with a message that echoes the ambiance of a D&D adventure, setting the mood for the upcoming quest. Being based on ChatGPT, the tool is interactive, suitable for both individual users or a group of players wishing to start a campaign without a human DM. It is worth noting, however, that utilizing this GPT requires a ChatGPT Plus subscription. With the Dungeons & Dragons GPT, users can enjoy a comprehensive and immersive D&D gaming experience guided by an AI, right from creating innovative characters and building unique plots to navigating through imaginative game worlds.