Last updated: 12 October 2026
Essential game cookie
Daily Challenge sets an airfield_player cookie containing a random identifier. It is used to recognize the same player browser for daily attempt and leaderboard eligibility checks. The cookie is configured as Secure, HttpOnly and SameSite=Lax, with a maximum lifetime of one year.
Local storage
Daily Challenge uses browser local storage to mark when that day's challenge has started. This supports the practice-replay notice on the same browser. Clearing local storage can remove that notice, but does not override the server's eligibility checks.
Advertising and analytics
This page documents the storage currently used by Airfield's own game features. If third-party advertising or analytics tools are added, they may use additional cookies or identifiers. Before enabling them, we will update this page and implement consent choices where required.
Managing storage
You can clear cookies and site data through your browser settings. Doing so may affect your game experience, and it does not automatically delete records already stored on the server.