AI Dungeon is an AI-powered text adventure game powered by large language models that generates infinite, dynamic story narratives in real-time based on player actions. Unlike traditional games with scripted outcomes, AI Dungeon creates genuinely unpredictable storylines across fantasy, sci-fi, mystery, and any other genre a player imagines. With millions of players worldwide, it pioneered entertainment applications of generative AI and remains the definitive platform for collaborative AI storytelling and creative interactive fiction.