Lucid Book vs OpenRP

Lucid Book is a browser-based AI story-play platform built around playable books. You can prepare a story in advance or begin with one character and add others as the story develops. During play, controls let you alter weather, time, genre, mood, and locations. Character profiles can define roles, personalities, behavior, interests, and relationships, and you can build worlds with detailed locations and connect characters to places through roles. The site says its AI uses book-scale context to retain story details and keep characters and events consistent. Books can be shared by link or published in a community library, and editing can be locked. Stories can be played in any language. Lucid Book adapts to PC, tablet, and mobile screens, and can be installed as a Progressive Web App. It is labeled beta and currently free; the FAQ says users can start by making a first playable book. The Privacy & Cookies Policy page says the policy document could not be loaded, leaving the available privacy information limited.

OpenRP is a web-based collaborative engine for building interactive fiction with worlds, characters, and dynamic narratives. Its visual world editor combines characters, backstory, and locations. Characters in one world can develop memories of each other, while edited content is embedded for retrieval in chat. The Behavior Engine connects language-model calls with chats and lore using conditions, loops, parallel branches, and HTTP requests. Pipelines can send generated messages to a Discord bot. Users can fork worlds, track edits, and propose changes to the original creator. Model controls expose context limits and estimated and actual usage costs. The Free plan has unlimited characters and messages with free AI models; Plus costs $10 a month and adds unlimited public and private worlds, monthly model credits, expanded personas and slots, feature requests, and priority support.