Privacy

Updated October 31, 2026.

Saved on your device

Uncle Curtis stores game progress, an entered callsign, settings and your current screen in your browser’s local storage. Session storage supports temporary game navigation. These values are used by the game on this device; the game does not send saved progress or callsigns to a game account service.

You can remove these saves and preferences by clearing this site’s browser data. Doing so also removes your saved game.

Requests to serve the game

Your browser requests the game from the website host (Vercel), and its audio, images and other large files from our content delivery network (Cloudflare). Each may process ordinary request information, such as your IP address, browser information and request times, to deliver and operate the site.

Fonts and external links

The game’s fonts are served from this site, so loading them makes no request to anyone else. Information pages use system fonts. Links to other websites open those sites, whose privacy practices apply when you visit them.

Online radio

Some radios can reach real players over the internet: the HF-18’s 60 m band, and the Sidewinder, which listens in on the same channels. They connect automatically while you play. Connected, your browser joins our voice service (LiveKit) under a random id (the 60 m set keeps its id in this browser’s storage), and the service sees your IP address while you’re connected. Your microphone is sent only while you hold PTT on 60 m, live to the players on that channel.

Who’s playing right now

While the game is open, each tab tells our server once a minute that it’s still there, so we can see how many people are playing. Each message carries a random id made for that tab, which screen you’re on, the time on the game’s clock, whether you’re playing the story or Osaka, whether the tab is in the background, and when the tab was opened. From the request itself we note a rough location (city, region and country, as estimated by our host from your IP address) and your browser, operating system and whether it’s a phone. Your IP address itself isn’t stored.

A tab’s entry is deleted a few minutes after it stops reporting in. We also keep running totals of how many game tabs opened each hour, day, month and year, which hold no details about anyone. Your callsign and game progress are never sent.

Advertising and accounts

The game has no advertising trackers, account registration or cloud save feature.