Privacy Policy
This policy explains what data Serpent Drift ("the game", "we") collects, why, and what your choices are. It applies to the Android, iOS and web versions of the game and to this website. Serpent Drift is published by ChillScale Games (Daniel Peter Nagy). Effective date: 30.05.2026.
Who we are
Serpent Drift is published by Daniel Peter Nagy, an independent self-employed developer based in Germany, operating under the name “ChillScale Games”. Daniel Peter Nagy is the data controller. For any privacy question or request, contact Daniel Peter Nagy at info@danielnagy.dev.
What we collect and why
We keep data collection to what the game needs to work. Specifically:
- Google Play Games sign-in (optional): if you choose to sign in, we receive your Play Games player ID and your chosen display name. We use them to identify you on the leaderboards and to save your progress to the cloud.
- Cloud save: your game progress and settings are stored as a Google Play "Saved Game" (Snapshot) tied to your Google account, so you can continue on another device. This data is managed by Google on your behalf.
- Leaderboard submissions: when you finish a leaderboard-eligible level, the game uploads your completion time, the level identifier, your player ID (or an anonymous guest ID), your display name, and a recording of your run inputs. The recording is replayed on our server to verify the run is legitimate (anti-cheat). This is stored on our own server.
- Guest play: if you do not sign in, the game generates a random anonymous identifier and stores it on your device. It is sent with leaderboard submissions so your own runs can be recognised. It is not linked to your real identity.
- Advertising: the game shows ads through Google AdMob. AdMob may collect a device advertising identifier and related data to serve and measure ads. See Google’s policies linked below.
- On-device data: your settings, unlocked levels, stars and personal-best times are stored locally on your device.
Diagnostics and crash reporting
We use Google Firebase Crashlytics to detect and fix crashes. When the app crashes or hits an error, a report is sent containing the device model, operating-system version, app state and a technical stack trace, together with a Crashlytics installation identifier. If you are signed in to Google Play Games, the report is also tagged with your player ID so a recurring crash can be traced to one account. We also use Firebase Analytics for aggregate usage and stability metrics. This data is used only to keep the game stable and improve it, on the basis of our legitimate interest, and is not sold or used for advertising.
Third parties
Some features rely on Google services, which process data under their own privacy policies:
- Google Play Games Services (sign-in, cloud save, achievements, leaderboards).
- Google AdMob (advertising), including Google’s consent management (UMP) for EEA/UK users.
- Google Firebase (Crashlytics crash reporting and Analytics).
- Google Play / Apple App Store (app distribution and, where applicable, in-app purchases).
Leaderboard data that you submit is stored on infrastructure operated by us. We do not sell your data to anyone.
Legal basis (EEA/UK users)
Where the GDPR applies, we process data on the following bases: performance of the service you request (cloud save, leaderboards), your consent (personalised ads, where required), and our legitimate interest in preventing cheating and keeping the game stable. Where consent is required for ads, you can manage it through the consent prompt shown in the app.
Your ad consent choices
If you are in the European Economic Area (EEA), the United Kingdom or Switzerland, you are asked for consent before we show personalised ads. You can change or fully revoke that consent at any time inside the app: open Settings → Ad privacy → “Manage ad consent”. This reopens the consent options so you can withdraw consent; after that you will only see non-personalised ads.
Your rights
You can export or permanently delete the leaderboard data we hold about you (your player profile, leaderboard entries and stored run recordings) directly from the game: open Settings → Game → “My leaderboard data” and choose Export my data or Delete my data. Deletion removes your runs from the public boards immediately. You can also delete your cloud save from within Google Play Games and reset local progress from the same Settings screen. For any other privacy request, or if you can no longer access the game, contact us at info@danielnagy.dev.
Step-by-step deletion instructions, including how to request deletion if you can no longer open the app, are also on a dedicated page: Delete your account & data
Data retention
Leaderboard entries and the run recording for your best time are kept while your run remains on the board, so the standings can be verified and displayed. Slower run recordings are discarded automatically. You can export or delete this data at any time from the in-game Settings.
Children
Serpent Drift is a general-audience arcade game and is not directed at children under the age required for consent in your country. If you believe a child has provided us personal data, contact us and we will remove it.
Security
Data sent between the game and our servers is transmitted over encrypted connections. No system is perfectly secure, but we take reasonable measures to protect the limited data we hold.
Changes to this policy
We may update this policy as the game evolves. Material changes will be reflected by an updated effective date on this page.
Contact
Questions about this policy or your data: info@danielnagy.dev.
Google Play Games: policies.google.com/privacy · Google AdMob: AdMob & privacy