DeepRealms is an AI-powered collaborative storytelling platform designed for erotic fiction. Unlike AI sex chat simulators, it functions as a co-author: users contribute scene actions and the AI continues the narrative in real time. The platform offers multiple AI models with varying levels of censorship and resource cost. The most capable uncensored model, Astral 3.0, enables explicit adult content once NSFW mode is enabled. Story context is shaped via Author's Note and Memory fields, allowing users to establish character traits, tone, and scene details before generating content. Predefined "Worlds" — from a basic starter scenario to themed settings like an NSFW AI Writer or a sci-fi Cyberdom — give users structured starting points. Users can also build their own custom worlds in the Gallery. Pricing is credit-based: $8/month for 20,000 credits or $25/month for 80,000, with the higher tier allowing purchase of additional non-expiring credits. A free trial is available without signup. Credit cost per generation varies by model; heavier models consume more credits per paragraph. Best fit for users who prefer text-driven fantasy over image or video content, and enjoy shaping narratives rather than chatting with a fixed character persona.