D&D AI Game Master is a GPT built on top of ChatGPT with a specialized focus on enhancing games of Dungeons and Dragons (D&D) through enriched world-building and storytelling features. This tool surpasses the simple textual interactions, leveraging the capabilities of AI to create a more immersive gaming experience. It offers users an interactive platform to roll out D&D sessions with a suite of features specifically designed to enable dynamic world-building scenarios and diverse adventure narratives. The users can start from scratch or provide references to design their game world, granting them extensive flexibility and control over setting the course of their gameplays. Additionally, there's also a feature to build a randomized world, adding an element of surprise and unpredictability to the gaming scenario. The GPT offers command-based interactions with users and supports core and special mechanics. With core mechanics, users can validate gaming rule-sets, enact character movements, and initiate gameplays. Special mechanics, on the other hand, add an additional layer of complexity, introducing unforeseen elements and challenges in the storyline. One of the noticeable features of D&D AI Game Master is its world creation capabilities. The tool allows for the creation of expansive, detailed, and richly-inhabited worlds that provides depth to character interactions and game plot. Each location, NPC, or event is meticulously crafted to be coherent with the game's theme, ensuring a seamless, immersive experience. D&D AI Game Master also features an in-built chat, allowing for real-time discussions, planning sessions, and collaborative decision-making among the players. This tool requires ChatGPT Plus for enhanced functionalities, broadening the scope of interactive gaming experiences.