About Optio
Interactive fiction you create and play.
Optio is a web application for reading and writing branching narrative experiences. Authors design worlds, characters, and story beats; readers play through those worlds, make choices, and see the story respond in real time.
Architect
Build worlds and story structure. Define places, people, and key moments your readers can discover.
Explorer
Enter a world as a character, read immersive narrative text, and pick what happens next. Your choices shape the story session.
Sign-in is free with Google. It saves your progress, lets you share stories, and unlocks Architect and Explorer.