Privacy Policy
The operator of this site (handle: rin0420; referred to below as “the operator”) respects user privacy when providing the browser game “VOID STRIKER” (referred to below as “the game”) and this site, and handles information according to the following policy.
1. Basic policy
The game is designed to work fully offline under file://, and no information is sent to the operator's servers during normal play. Progress data, including scores, credit balances, owned skins and themes, and settings, is stored only in the user's browser localStorage and is not transmitted externally. Only when online features such as digital-item purchases and ownership synchronization are used does the operator handle the minimum information described below.
2. Information collected when using online features
| Information | Details | When collected |
|---|---|---|
| Device account ID | A random identifier issued by the server. It does not contain personally identifying information such as a name or email address | When an online feature is first used |
| Authentication token | A signed token issued for the device account ID and stored only in the browser's local storage | Same as above |
| Purchase records | Transaction records such as the purchased digital item's SKU, payment session ID, and purchase date and time | When a digital item is purchased |
| Access date and time | The date and time the device account was last used | When an online feature is used |
The operator does not directly collect personal information such as names, addresses, telephone numbers, email addresses, or credit card details. If a feature requiring payment is provided, payment processing is outsourced to a payment service provider such as Stripe, Inc. Card information and similar details are sent directly by the user to that provider. Refer to each provider's published privacy policy for information about its handling practices.
3. Purposes for using information
Collected information is used only for the following purposes:
- To manage ownership of purchased digital items and reflect it correctly in the game
- To investigate fraudulent purchases, duplicate charges, and similar matters, and to respond to inquiries
- To maintain and improve the service, including investigating failures
4. Disclosure to third parties
Except where required by law, the operator will not provide collected information to a third party without the user's consent. Payment processing itself is outsourced to a payment service provider, and information required for payment is sent directly by the user to that provider. If advertising described below is introduced, advertising providers may also collect information independently through cookies and similar technologies.
5. Data storage location and retention period
- Device account IDs and purchase records are stored in cloud infrastructure managed by the operator, such as Cloudflare D1 (database).
- Authentication tokens and game progress data, including credit balances and owned skins and themes, are stored only in the browser's local storage and are not sent to the operator's servers. Only SKU information for purchased items is synchronized with the server.
- Data is generally retained for a reasonable period after the account was last used or until the game is discontinued, whichever comes first.
6. User rights
Users may request disclosure, correction, or deletion of information about themselves, such as purchase records associated with a device account ID. Submit requests through the GitHub Issues described on the contact page. Due to the nature of the device-account system, identity verification and identification may be limited if the user cannot provide the identifier to the operator. Progress data stored in local storage can be completely deleted by the user at any time by selecting “WIPE DATA” on the game's OPTION screen.
7. Cookies and advertising
The game itself, meaning the canvas-based gameplay screen, does not use cookies to track play activity. This site, including content pages such as the gameplay guide and development blog, may in the future display advertising from third-party providers, such as an advertising network including Google AdSense, to support site operation. If advertising is introduced, please note the following:
- Third-party advertising providers may use cookies or similar technologies, such as local storage or device identifiers, to serve interest-based personalized advertising based on previous visits to this and other websites.
- For details about Google's use of cookies in advertising, see Google's advertising policies at https://policies.google.com/technologies/ads.
- To disable personalized advertising, change your settings through Google Ads Settings or industry opt-out pages such as aboutads.info and youronlinechoices.com.
- If advertising is introduced, this policy will be updated to announce its start date and placement scope.
Use of local storage as necessary for the online features described above, including digital-item purchases and ownership synchronization, is separate from tracking for advertising purposes.
8. Contact
For inquiries about this policy, use the GitHub Issues described on the contact page.
9. Revisions
The operator may revise this policy as necessary. A revised policy takes effect when posted on this page.