Free play
Daily and Unlimited are free. No account or payment is required. Availability is not guaranteed; runs may be limited or interrupted by maintenance, connection failures or service limits. Browser storage is needed to restore progress.
Scores and rankings
The server checks answers, timing and scores. Rankings show an anonymous diver name and depth, with one best completed result per browser in each UTC day or Monday-based week. Daily allows one saved result per browser per New York day. Clearing browser data can remove access to saved progress.
Answers and content
We maintain our own curated question bank, not official krillion.io answers. Our lists may omit valid responses or contain mistakes. A rejected answer does not prove that it is factually wrong. Report the prompt and your answer through our contact page.
Acceptable use
Do not automate play, manipulate scores, scrape the service or try to bypass limits or disrupt other players. Requests that breach service limits may be rejected. Play fairly and do not submit personal information in game answers or feedback.
Advertising
Third-party advertising may be shown; ads are clearly separated from gameplay. Advertising does not determine accepted answers or scores. See our privacy page for advertising and cookie information.
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