Privacy notice
The short version: you can play without signing in, and then nothing about you leaves your device. If you choose to sign in with Google, we store a nickname you pick and your best scores so they can appear on the leaderboard. You can delete all of it yourself, at any time, from inside the game.
Who runs this game
Atomic Odyssey is a free teaching game made by Poovendhan Mathiyazhagan and published on NMCalc (nmcalc.com). For anything about your data, contact poovendhanind@gmail.com.
Playing as a guest
Guests are not signed in and we receive no personal data. The game saves your settings (sound, chosen particle) and your best scores in your own browser's storage on this device only. Clearing your browser data removes them.
If you sign in
| What | Why | Who can see it |
|---|---|---|
| Your Google account's name, email and an internal user ID, held by Google Firebase Authentication | To sign you in and keep your scores attached to you | Only you and the game's administrator. Never shown on the leaderboard |
| A nickname you choose | To show your scores on the leaderboard | Everyone who opens the leaderboard |
| Your best score for each radionuclide (all-time and per week), the particle and radionuclide, and when you set it | The leaderboard | Everyone who opens the leaderboard |
| Which leaderboards and weeks you posted to, and when you agreed to this notice | So "Delete my data" can find and remove every entry, and as a record of your consent | Only you and the administrator |
We do not use analytics, advertising or tracking cookies, and we do not sell or share your data. Signing in is never required to play.
Where your data is kept
Scores and nicknames are stored in Google Cloud Firestore in the Mumbai (asia-south1) region. Sign-in is handled by Google Firebase Authentication. Google processes this data on our behalf under the Firebase data processing terms.
How long we keep it
Until you delete it. Accounts with no activity for three years may be removed.
Your choices and rights
- Change your nickname: in the game, open your account and choose Change nickname.
- Delete everything: in the game, open your account and choose Delete my data. This removes your nickname, every score you posted and your sign-in record. It happens immediately and cannot be undone.
- Withdraw consent: deleting your data withdraws it. You can keep playing as a guest.
- Ask a question, correct something or raise a grievance: email the contact above. We aim to reply within 30 days.
Children
The game is meant for students and adults. If you are under 18, please play as a guest unless your parent or guardian agrees to you signing in.
Changes
If this notice changes, the date at the top will change. Significant changes will also be mentioned on the game's start screen.