Shipwrecker.io has no accounts, no ads and no tracking.
On your device
Your browser remembers a few settings so you don't have to set them again: your captain name, sound on or off, and which panels you've hidden. They never leave your device. Clear your browser's site data to delete them.
While you play
The game server needs your captain name, your ship and your IP address to run the game and to stop people flooding it with fake players. This is kept in memory only while you're playing, and is gone when you leave. Nothing about you is saved to a database or a file — the server only keeps counts, like how many captains were online.
Cloudflare
The site runs through Cloudflare, which checks that you're human (Turnstile) and counts visits without cookies (Web Analytics). See Cloudflare's privacy policy.