DreamTavern is an AI-based communication tool that enables users to engage in conversation with artificial characters inspired by popular media forms - including books, movies and games. The user can not only talk to pre-made characters, but also has the option to create and customize their own. The platform hosts a variety of themed group chats revolving around specific characters or franchises. Additionally, DreamTavern also provides interactive learning services such as language practice with a multilingual AI character, and an AI assistant who is ready to help with any task. It transforms text-based interactive experiences with AI into a more social and communal activity, bringing together users with shared interests. The tool evolves and adapts based on the actions and input of its users, providing a continuously evolving chat experience.