1. Controller

Chainvision Games FZCO
Dubai Silicon Oasis
Dubai Digital Park, Building A1
P.O. Box 342 001
Dubai, United Arab Emirates

Email: business@katanainu.com

2. Which data we collect

The server force.katanainu.com currently stores:

• Device ID: to assign progress and supported ownership records.
• Player name: to identify the player and show verified entries on the public leaderboard.
• Game values and replays: to assign saves, calculate the leaderboard and run anti-cheat checks.
• Bug reports: the report text, an optional screenshot, game version, league, level and platform for support and error diagnosis.
• Purchase records: for in-game purchases; order, price, payment reference, status and required consent records.
• Server logs: IP address, timestamps and technical details to operate and protect the service.

The current release links the chosen player name to a device account. The next game release will add in-game account registration and collect an email address with the player name. We will use those account details to provide the account, assign the save and leaderboard entry, and contact the player for support or an account-related need. The legal basis is performance of the user agreement (Art. 6(1)(b) GDPR).

Marketing emails will be sent only after a separate, voluntary opt-in confirmed by double opt-in. Consent is the legal basis (Art. 6(1)(a) GDPR). Every marketing email will provide an unsubscribe option; consent may be withdrawn at any time without affecting earlier lawful processing.

Account data is kept while the account is active and afterwards only as required for legal obligations or claims. Marketing contact data is kept until consent is withdrawn. Bug reports are deleted automatically after 90 days. You may request deletion using the email address stated in the legal notice, subject to mandatory retention duties.

You are not legally required to provide this data. Without the device or, after the registration release, the required account data, we cannot provide the associated save assignment, leaderboard or account functions. If no player name is chosen, the leaderboard uses an automatically generated pseudonym.

Further legal bases are legal obligations (Art. 6(1)(c) GDPR) and our legitimate interest in a secure, tamper-free service and effective bug fixing (Art. 6(1)(f) GDPR). There are no advertising trackers. Fonts are loaded locally from this website, not from third parties.

Hosting

The server and website are hosted by Hetzner Online GmbH as a processor.

Bug reports

If you use “Report a Bug” in the game, the server stores your text, an optional screenshot, and the game version, league, level and platform. This is used to fix errors (Art. 6(1)(f) GDPR). Please do not include personal data in the text. Bug reports are deleted automatically after 90 days.

Anonymous usage statistics

To learn how many people download, install and play, we count anonymous events: a click on a download button on this website (page and language only), the first start of the game, and at most one start per day. The game sends a random installation ID, the game version and the operating system name. The server keeps only a one-way hash of that ID (with a secret salt) and has no link to your name, account, device or save game. No IP address is stored with these statistics; as with every request, a salted hash of the IP address is held for at most one day for abuse protection. Installer and update downloads are counted from a web server log that contains only time, file name, status and size, without IP address or browser data. We set no cookies and use no third-party tracking. Legal basis is our legitimate interest in understanding use of the game (Art. 6(1)(f) GDPR). Statistics are deleted after 400 days. You can switch this off at any time in the game under Settings, “Anonymous usage statistics”.

3. Payment providers

Purchases are started inside the game. The selected provider processes the payment.

• Stripe: card payments and fraud prevention.
• NOWPayments: optional crypto invoices and payment status.

Card details stay with Stripe. Private keys or seed phrases are never requested.

4. Optional: linking a Katana Inu account

If you link STF with your launcher account, the launcher checks the holder status and NFT ownership of the connected wallet. Only public blockchain data is read; only $KATA in your own wallet is counted, not exchanges. Without linking, this does not happen. Further details are in the launcher privacy policy.

5. Retention and transfers

We keep data only while needed for the purpose, and afterwards only for legal retention duties, security incidents or legal claims. The controller is in the United Arab Emirates; transfers outside the EEA use, where required, an adequacy decision, Standard Contractual Clauses or another lawful safeguard.

6. Your rights

You may request access, correction, deletion, restriction and portability, and object to processing where the legal conditions apply. Your leaderboard name is public; on request we remove it. You may complain to the data protection authority at your residence or workplace. There are no solely automated decisions with legal or similarly significant effects.

Contact: business@katanainu.com

Last updated: 10 November 2026