Privacy
Minesweeper Reforged is a single web page with no backend, no database and no login. It does not
ask for your name, your email address or any other personal detail, and it has no way to
associate a game with a person. Everything the game remembers is written to your own browser's
localStorage and never leaves the device. This page lists every key by name.
What is stored in your browser
The game writes exactly five keys. Nothing else is stored, and no cookies are set.
| Key | What it holds | Why |
|---|---|---|
msr.tier.v1 |
One of sprout, casual, standard, brutal, inferno. |
So the game reopens on the tier you last chose. |
msr.theme.v1 |
light or dark. |
So your dark mode choice survives a reload. Before you pick one, your operating system setting is used and nothing is written. |
msr.settings.v1 |
Three true/false flags: question marks, flag mode, and the staggered reveal animation. | So the toolbar and settings dialog stay the way you left them. |
msr.stats.v1 |
Per tier and board size: games played, games won and best time in milliseconds. | So the score table can show your record. It contains numbers only — no dates, no device details, no identifiers. |
msr.custom.v1 |
The width, height and mine count of the last custom board you started. | So the custom board dialog reopens with your last values already filled in. |
What is not collected
- No personal data is collected or transmitted. There is no account, no sign-in, no email field and no contact form.
- No advertising, no advertising identifiers and no third-party trackers.
- No cookies. The five keys above are
localStorage, which is not sent with network requests. - Your games, clicks, times and scores are never uploaded. The server only ever sends you files; it never receives gameplay.
Aggregate performance monitoring
If the operator has enabled it, the page loads Tencent Cloud RUM, a performance beacon that
reports aggregate technical data: page load timings, JavaScript errors, and a coarse traffic
channel derived from the referring site and any utm_ parameters in the address bar
(for example "search", "social", "ai_referral" or "direct"). That beacon never receives your
scores, your settings or the contents of your localStorage. When monitoring is not
configured, no third-party script is loaded at all.
How to delete everything
The Clear saved scores button in the game's Settings dialog removes
msr.stats.v1. To remove all five keys, clear site data for this domain in your
browser settings, or use your browser's private browsing mode, in which nothing persists after
you close the window. Deleting the keys deletes the data permanently; there is no copy anywhere
else.
Children
The Sprout tier is designed for young children, and the game collects nothing from anyone, including children. There is no account to create, no field to type into and nothing that leaves the device.
Changes
If a future version stores something new, this page is updated in the same release, and the project's test suite fails if a storage key exists in the code but is not listed here.