01 · Introduction
Who operates Chain World
This Privacy Policy applies to Chain World for Android, its web game at chainworld.gwl-games.com, and the Chain World support pages. The Android package is com.gwlgames.chainworld.
Ivan Taranets, operating under the studio name GWL Games, is the developer and controller of the personal information described here. “We”, “us”, and “our” refer to Ivan Taranets. Contact: info@gwl-games.com.
02 · Information
Information we process
- Installation identity: the game automatically creates a random installation credential to recognize this installation and protect its saved game. A hash of that credential links to an internal player record on our server. The current game has no player registration or login form and does not ask for a player username, email address, or password. This identifier is generated by the game; it is not your phone number, IMEI, or hardware serial number.
- Gameplay: completed and unlocked levels, progress, coin balance and transactions, lives and refill times, daily rewards, settings, and the actions needed to save or synchronize your game.
- Purchases: product identifiers, Google Play purchase tokens and order references, purchase and verification status, granted items, and purchase/refund timestamps. An opaque player reference links a purchase to the installation’s game record. We do not receive your full payment-card number from Google Play.
- Technical information: our hosting systems may record IP addresses, request times, requested resources, browser/app information, and errors for delivery, troubleshooting, and security.
- Advertising: the Android advertising SDK processes identifiers, IP address and approximate location, ad interactions, and diagnostics as described below. Consent choices are also processed.
- Support: your email address, message, and any screenshots or purchase references you choose to send.
Earlier versions allowed player accounts and collected usernames, email addresses, display names, and password hashes. Where a valid existing session is available during the update, the game can retain that player’s saved progress and balance while switching to the installation identity. Existing server records are not automatically erased by this update and remain subject to the retention and deletion provisions below. New players do not need to create an account.
Google Play purchases still use your Google Play account and require a connection. Ordinary gameplay does not request access to your contacts, microphone, camera, or precise GPS location.
03 · On your device
Local storage and offline play
The game uses browser/WebView storage and private app storage for settings, progress, downloaded levels, images, and other game files. Android stores the installation credential in private app storage excluded from automatic backup. The web game uses a secure cookie that page scripts cannot read. Server sessions recognize the installation automatically; no player sign-in is required. Android also stores verified offline-access information for opening downloaded content.
The one-time No Ads + Offline purchase enables offline play with downloaded levels in the Android app. After verification, the game first downloads the tutorial and up to ten published levels near your current progress, together with required game files. Remaining content downloads while the app is open and connected. Only content downloaded successfully is available offline.
Progress, lives, and coin balances are associated with the installation’s server record and cached on the device. Offline progress synchronizes when you reconnect. Purchases, purchase restoration, rewarded ads, daily rewards, and coin transactions require internet access.
Ordinary Android app updates retain the installation identity. Uninstalling, clearing app data or browser cookies, resetting the phone, or moving to another device can remove access to that identity, saved progress, and the remaining coin balance; unsynchronized progress and downloads may be lost. The game does not promise permanent hardware-based recovery. Removing local data does not delete records already held on our server. The permanent No Ads + Offline purchase can be restored online using the Google Play account that bought it; previously delivered consumable coins are not granted again by purchase restoration.
04 · Advertising
Google AdMob and privacy choices
Chain World for Android uses Google AdMob through the Google Mobile Ads SDK for interstitial ads between game sessions and optional rewarded ads. The SDK may collect and share IP address, approximate location inferred from it, Android advertising ID or app/device identifiers, ad views and interactions, and diagnostic information. Google uses this information for ad delivery and measurement, service performance, and fraud prevention. See Google’s SDK data disclosure.
The app uses Google’s User Messaging Platform (UMP) to obtain applicable advertising privacy choices and checks whether advertising requests are permitted. Where required, Privacy choices in the game settings lets you reopen the consent form. Android settings also provide advertising-ID controls. Ads can be limited or unavailable depending on your choices and the network.
Optional rewarded ads remain available online if you choose them. Rewards are granted after the ad system confirms the reward condition. The purchase does not make ads or purchases work without a connection.
Google’s processing is described in its Privacy Policy and information about apps that use Google services.
05 · Purposes
Why we use this information
- Provide the game: recognize your installation, save progress, manage lives and coins, and deliver levels and offline access.
- Fulfil purchases: check purchases with Google Play, credit the correct player record, restore permanent access, and handle refunds or reversed purchases.
- Operate advertising: respect privacy choices, serve eligible ads, and verify requested rewards.
- Protect and maintain the service: prevent duplicate credits and abuse, resolve errors, and answer support requests.
- Meet obligations: maintain records required by applicable law and address legal claims.
Where European data-protection law applies, we rely on performance of our contract for the information necessary to provide your saved game and purchases; legitimate interests for proportionate security, fraud prevention, and troubleshooting; legal obligations for required records; and consent for advertising or device access when consent is required. You can withdraw consent without affecting processing lawfully completed before withdrawal.
07 · Retention
How long information is kept
Installation records and synchronized game data are kept while needed to provide your saved game. Legacy account details are retained only where needed for migration, support, security, or another purpose described in this policy. Purchase and transaction records may need to be retained to fulfil purchases, restore access, prevent duplicate credits, address refunds and disputes, and meet legal obligations. Logs and support messages are kept only as long as needed for their support, security, or legal purposes.
When a verified data-deletion request is completed, we remove or anonymize the relevant player record, associated gameplay data, and applicable legacy account details, except for limited records that must be retained for legal obligations, transaction disputes, or necessary fraud prevention. Retained records are restricted to those purposes and removed when that need ends. Google determines retention for information it controls under its own policies.
The installation credential is stored privately on the device, and the server retains its hash. Stored Google Play purchase tokens are encrypted. Legacy password records are hashes. Do not share installation credentials, purchase tokens, or unredacted receipts publicly.
08 · Your control
Your rights and game-data deletion
Depending on the law that applies to you, you may request access, correction, deletion, portability, or restriction of your personal data, object to processing based on legitimate interests, withdraw consent, or complain to a competent data-protection authority.
To request deletion of your Chain World player record and associated data, follow the game-data deletion instructions. You can contact info@gwl-games.com without opening the app. We may need proportionate information to locate your pseudonymous record and verify the request. Do not send an installation credential, purchase token, or password.
Uninstalling or clearing storage removes local information but does not delete your server record. A server-data deletion request is separate from a Google Play refund and can remove saved progress and the remaining coin balance. It does not delete Google’s transaction history. If you later restore the permanent upgrade, purchase verification may create the records needed to provide that access again. Contact support before deletion if you need purchase assistance.
09 · Younger players
Parents and guardians
Parents and guardians can contact us about information a child has provided or to request review or deletion of the child’s game data. We may need to verify that the person making the request is authorized to act for the child. Purchase approval and parental controls can also be managed through the applicable Google account and device settings.
10 · Contact
Questions and policy changes
This policy may change when the game or its data practices change. The date above identifies the current version. Where applicable law requires additional notice or consent, that requirement applies.
For privacy questions, data requests, or information about this policy, contact Ivan Taranets, operating as GWL Games:
info@gwl-games.com →