Legal · last updated 2 November 2026
Cookies and browser storage
Corvathane sets no cookies at all, ours or anyone else's. There are no analytics, advertising or social media trackers. The site does keep a few small items in your browser's storage so that the games work; this page lists every one.
1. Cookies
None. The site does not read or write cookies, and it loads nothing from other websites, so no third party can set them through us either. The links on Inside and to help organisations open other websites, which have their own cookie notices.
2. Browser storage
Browser storage (local storage and session storage) is a small area of your browser that a website can use for its own data. Our data never leaves your device. Every key starts with kvt..
| Key | What it holds | When | How long |
|---|---|---|---|
kvt.age | Your answer to the age question | Always (needed so the site stays closed to under-18s) | Until you clear it |
kvt.consent | Whether you accepted or rejected storage | Always (needed to remember your choice) | Until you clear it |
kvt.lock | The end time of a pause you set | Always, once you set a pause (it does what you asked) | Until the pause ends or you clear it |
kvt.sparks | Your sparks | Accept: this device · Reject: this tab only | Accept: until cleared · Reject: until the tab closes |
kvt.codex | Rounds played, records and feathers | Accept: this device · Reject: this tab only | Accept: until cleared · Reject: until the tab closes |
kvt.prefs | Reminder, round limit and calm mode | Accept: this device · Reject: this tab only | Accept: until cleared · Reject: until the tab closes |
kvt.session | This session's start time, rounds and spark totals, for reminders | Always in session storage | Until the tab closes |
3. Your choice
After the age question, a bar asks whether to keep your sparks, Codex and settings on this device. Accept and Reject are equal; the site works fully either way. You can change your mind at any time with , also in the footer of every page. Choosing Reject removes the items already kept on the device.
4. Clearing everything
The Codex has a Wipe button for sparks, Codex and settings. To remove everything, including your age answer and any pause, clear site data for corvathane.com in your browser settings. A pause you set to protect yourself will then no longer apply on that browser.
5. Contact forms and logs
The contact form does not set cookies. What happens to messages and server logs is explained in the privacy notice.
6. Questions
Write to privacy@corvathane.com.