Zero-Screen Dungeon Master: The Voice-Only RPG Where Your Real Walk Drives the Story

Zero-Screen Dungeon Master (ZSDM) is an innovative, open-source audio RPG designed to encourage physical activity without the distraction of a smartphone screen. Developed for the Hacktoberfest Open-Source AI Challenge, the project uses a mobile-first PWA that tracks GPS movement to trigger narrative checkpoints. By utilizing Google's Gemma AI via Ollama, the app generates branching, non-linear stories that unfold through voice narration. Users interact with the game through blind touch controls while their phone remains in their pocket, promoting a 'Touch Grass' experience. The architecture features a React-based frontend, offline-ready service workers, and a local AI forge that ensures privacy by keeping all data on the device. This project highlights the potential of local, open-weight models to create immersive, privacy-focused experiences that function entirely offline, even in remote environments, without the need for cloud-based APIs or constant internet connectivity.