18+ only. SilverHavenLabs is a simulated research haven — Silver Sparks hold no real-world value.

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Cookie Policy

A short, complete list of everything this site writes to your browser. There are four keys in total, three of them essential.

Last reviewed: 1 July 2026

1. What we mean by cookies

Strictly speaking this site does not set traditional cookies for its own features. It uses local storage, a browser mechanism that keeps a handful of small values on your device without attaching them to every request. We call them cookies here because that is the word everyone recognises, and because the banner covers both.

2. Essential storage

Three values are required for the site to behave sensibly:

  • your Silver Spark counter, so a refresh does not wipe your session;
  • your age confirmation, so the 18+ panel does not reappear on every page;
  • your cookie choice, so the banner stays closed once you have answered it.

These cannot be switched off while you use the site, because without them the site cannot remember anything at all. They contain no identifiers and are readable only by your own browser.

3. Optional storage

Choosing Accept all permits aggregate usage measurement — which pages are opened, which terminal is used more often, and roughly what kind of device is being used. Choosing Essential only switches that off. Nothing else changes: every terminal stays fully playable either way.

4. Full key list

Key
Purpose and lifetime
shl_sparks
Essential. Holds your Silver Spark counter. Stays until you clear browser storage.
shl_age_ok
Essential. Records that the 18+ question was answered. Stays until you clear browser storage.
shl_cookie_choice
Essential. Records whether you accepted all storage or essential only.
shl_last_grant
Essential. Holds the date of your last daily grant so it can be claimed once per day.

That is the whole list. No advertising identifiers, no cross-site trackers, no fingerprinting scripts, no social widgets.

5. Third parties

Web fonts are requested from Google Fonts so the pages render with the intended typefaces. That request is handled by Google under its own terms. The responsible play organisations linked in the footer are independent and set their own storage on their own sites, not on ours.

6. Changing your choice

Clear the site data for silverhavenlabs.com in your browser settings. The banner will appear again on your next visit and you can answer differently. The same action resets your Spark counter to the standard 7,500 SPK starting figure.

Most browsers also offer a private or incognito window, which discards all storage the moment the window closes.

7. Contact

Questions about anything on this page: privacy@silverhavenlabs.com.