A parent account saves your profile and chat activity through Supabase. For an instant start, try our free guided ocean adventure—no account needed.
Grown-up: choose a nickname and age band. This profile and chat activity are saved to your account. Avoid real names or other private details.
Build a story, chapter by chapter.
Pick a theme. Name your hero. Nautilus writes the rest.
Quick games that get a little harder every day.
Every day a little stronger.
Parents do not need an API key. The chat uses this site's server connection when it is available.
The connection has not been checked yet.
Written sample replies are labeled when live AI is unavailable. AI replies may be wrong. Profiles and chat history are saved to your cloud-backed account.