Privacy Policy
Multiverse Doomsday Strike — The Verdigris Protocol
Last updated: 31 August 2026
The short version: the game has no accounts. It asks for a call sign so it can put a name next to your score, keeps your progress on your own phone, and sends nothing else anywhere. There is no email address, no password, no sign-in, and no social login.
Who is responsible. This app is published by Prayal ("we"). If you have a question about anything on this page, or you want your leaderboard entry removed, write to krishnarijal733@gmail.com.
1. What the game stores on your device
All of the following lives only in the app's own private storage on your phone. It never leaves the device, and uninstalling the app deletes it:
- Your call sign.
- Your settings — music and sound switches, graphics quality, difficulty.
- Your progress — best Doomsday Score, chapters cleared, best gauntlet wave, today's daily result, your daily streak, achievements earned, skins unlocked.
- A randomly generated identifier for this installation (24 hexadecimal characters). It is not a device ID: it is not your advertising ID, not a hardware serial, and not linked to anything outside this game. Reinstalling the app generates a brand new one, and the old one can never be connected to you again.
2. What is sent off your device
The leaderboard
When you finish a run with a score above zero, the app posts one row to our leaderboard database, which is hosted by Supabase on our behalf. The row contains exactly this and nothing more:
| Field | Example | Why |
|---|---|---|
| Call sign | TORVALD | So there is a name on the board |
| Doomsday Score | 128400 | The thing being ranked |
| Installation identifier | a19f4c… | So your own rank can be found without a login, and so one install cannot be mistaken for another |
| Game mode | gauntlet | Separates the boards |
| Wave / chapter reached | 18 / 4 | Shown beside the score |
| Difficulty | nightmare | Shown beside the score |
| Best combo | 34 | Shown beside the score |
| Timestamp | 2026-08-31T18:04Z | So the daily board can reset each day |
It is sent over HTTPS. It contains no email address, no phone number, no contacts, no location, no photos, no files, and no advertising ID.
Your call sign is public. If your score reaches the top ten, the call sign you chose is displayed to every other player. Please do not use your real full name, and do not type anything into it you would not want strangers to read. You can change it at any time in Settings ▸ Call sign; changing it does not rename scores you already posted, so ask us to remove those if you need them gone.
Advertising
The game shows ads through Google AdMob. AdMob is operated by Google and, when it serves an ad, it may collect and use your device's advertising ID together with technical information such as your device model, operating system version, coarse location derived from your IP address, and which ads you have already been shown. It uses this to choose ads, to avoid showing you the same one repeatedly, and to measure whether ads worked.
We never see any of it, and we never send AdMob your call sign, your score or your installation identifier. Google's handling of it is governed by the Google Privacy & Terms.
You can limit this yourself, at any time, without leaving the game running:
- Android: Settings ▸ Google ▸ All services ▸ Ads, then Delete advertising ID or Opt out of Ads Personalisation. Deleting it means you still see ads, but they stop being personalised.
- If you are in the EEA, the UK or Switzerland, a consent prompt appears before any personalised ad is served, and you can decline it.
Nothing else
There is no analytics SDK, no crash reporter, no attribution SDK, no social network SDK, and no advertising network other than AdMob. The game requests no Android runtime permissions at all — no camera, no microphone, no location, no contacts, no storage, no notifications.
3. Children
This game is not directed to children under 13 (or the equivalent minimum age where you live), and we do not knowingly collect anything from them. It carries advertising, which is why it is rated for teens and above. If you believe a child has posted a score, write to krishnarijal733@gmail.com and we will delete the row.
4. How long any of it is kept
- On your phone: until you uninstall the app or clear its data.
- Leaderboard rows: kept while the leaderboard exists, because a permanent all-time board is the point of it. Ask us and we will delete yours.
5. Your choices, and how to delete your data
Because there is no account, most of this is in your own hands:
- Delete everything stored locally — uninstall the app, or use Android Settings ▸ Apps ▸ Multiverse Doomsday Strike ▸ Storage ▸ Clear data. This wipes your progress, your streak and your installation identifier permanently. We cannot recover it and neither can you.
- Delete your leaderboard entries — email krishnarijal733@gmail.com with the call sign you posted under and roughly when. We will find the rows and delete them, normally within 30 days. We may ask you for the installation identifier shown in Settings to make sure we delete the right person's scores.
- Stop posting scores — turn off your device's network connection, or simply do not play. Every part of the game except the leaderboard works fully offline.
- Opt out of personalised ads — see the advertising section above.
Depending on where you live you may also have the right to ask what we hold about you, to have it corrected, to have it exported, or to object to its use. Use the same address. We do not charge for this and we will not make you create an account to do it.
7. Security
Everything is sent over HTTPS. The leaderboard database enforces row-level security: the app can add its own score and read the published top-ten aggregate, and that is the entire extent of its access. It cannot read, edit or delete another player's row, and neither can anyone who takes the app apart.
8. Changes
If this policy changes in a way that matters, the date at the top changes and the new version appears here before the change takes effect in the app.
9. Contact
krishnarijal733@gmail.comyou