Dungeoneer is a GPT specifically designed to serve as a Dungeons & Dragons (D&D) 5e expert assistant. The primary purpose of this tool is to support users in their D&D 5e quests by offering a wide array of functionalities. Dungeoneer can help create and visualize new characters according to user specifications. It can generate encounters for specific regions, such as a coastal region, providing a fun and dynamic experience for D&D adventurers. This GPT is also able to create stat blocks for characters with specific abilities, such as stealth, which can be instrumental in planning strategic aspects of the gameplay. Furthermore, Dungeoneer can design characters with desired attributes, for instance, characters with high charisma, allowing for customization and diversity in a quest's character roster. As a valuable addition to any adventurer's toolkit, Dungeoneer leverages AI technology to enhance the D&D experience, making it engaging, detailed, and immersive. It is an ideal tool for both experienced D&D enthusiasts and newcomers to the game who seek to get a quick grasp of character creation and game management. Note that it requires ChatGPT Plus, indicating it's a premium tool building upon OpenAI's language model, ChatGPT.