Terms of Use and Sale

1. Service provider and scope of these Terms

The web game Crystal Caverns and its related account, leaderboard and purchase services (together, the “Service”) are provided by Ai-Studio Development OÜ, registry code 17404322, Estonia (“we”, “us” or the “service provider”). Current contact details are available on the Contact page.

These Terms apply to use of the Service and purchases of Premium access. By creating an account or making a purchase, you confirm that you have read and agree to these Terms. For information about privacy, read our Privacy Notice.

2. Service, age and account

Part of the game can be used without an account. An account is required for cloud saves, account-based features, optional leaderboard participation and Premium purchases. Sign-in uses Google through Supabase Auth. Provide accurate information, keep your Google account secure and notify us immediately of suspected misuse.

The Service is not directed to children under 13. If your age means that you cannot enter into a contract independently, you must have the consent of a parent or guardian to use an account or make a purchase. A purchaser confirms that they are authorised to use the selected payment method.

An account is personal. You must not sell, rent or transfer an account, Premium time or access to another person. You can close the account in account settings or request closure using the address on the Contact page.

3. Licence and intellectual property

We grant you a limited, personal, revocable, non-exclusive and non-transferable right to use the Service for entertainment in accordance with these Terms. The game, source code, design, text, graphics, sounds, name and other elements belong to us or our licensors. These Terms do not transfer ownership or give you a right to copy, resell, distribute or use them to create a derivative product, except to the extent expressly permitted by applicable law.

Crystal Caverns is independently developed and is not affiliated with, endorsed by, or sponsored by any third-party game or trademark owner.

4. Permitted and prohibited conduct

The following conduct is prohibited:

• Do not break the law, infringe another person's rights or compromise the security of the Service.
• Do not use bots, automated inputs, a modified client, memory or network manipulation, or other methods to obtain an unfair result.
• Do not attempt to bypass access, payment or Premium restrictions.
• Do not disrupt servers, send malicious code, perform unauthorised load testing or collect other users' data.
• Do not impersonate another person or use offensive, misleading or rights-infringing content in a public name.

For an evident violation, we may remove a result, hide a public name, restrict features or suspend an account. Where possible, we will give a reason and a reasonable opportunity to challenge the decision, unless doing so would compromise security, an investigation or a legal obligation.

5. Leaderboards and user content

Leaderboard participation is optional. The chosen player alias and game result are made public together with information needed for the relevant game mode; a Google profile name or profile image does not need to be published. We may remove technically invalid, duplicate or unfairly obtained results. If results are equal, the earlier submission time may determine their order.

The current Service does not allow users to upload levels or other public creative content. If such a feature is added, we will publish additional content, licence, notice and moderation rules before it is introduced. The leaderboard is not a prize competition, and no money or items are currently awarded for results.

6. Premium access and prices

Premium is a time-limited digital service. You may choose a one-time purchase of 30 days or 365 days of access. It is not a subscription: there is no automatic renewal or recurring payment. The specific price, currency, taxes and total order amount are displayed before you confirm payment.

Payment is made in Stripe Checkout. Stripe provides the payment service under its own terms, and we do not receive your complete card details. Premium is activated on your signed-in account after we receive confirmation of successful payment from Stripe. The access period starts on activation. If the account already has active Premium time, the new paid period is generally added after the existing period ends.

A failed, incomplete or cancelled payment does not activate Premium. A purchase made under the wrong account is not automatically transferable. For a duplicate payment, technical activation error or another payment problem, contact us and include the Stripe payment reference, but do not send a full card number.

7. Immediate performance, withdrawal and defects

Premium is a time-limited digital service intended for use immediately after payment. Before payment, you must expressly request that Premium access begin immediately, before the 14-day withdrawal period expires, and acknowledge that you will lose your right of withdrawal once the digital service has been fully performed. An order for immediate access cannot be submitted without these confirmations.

This does not limit your mandatory rights if the Service is defective, does not conform to its description or is not supplied. Depending on the circumstances, you are entitled to the remedies provided by law, including bringing the Service into conformity, a price reduction, termination or a refund. We may also offer a voluntary refund on a case-by-case basis.

If a right of withdrawal applies to your purchase, send an unambiguous notice before the deadline to the email address on the Contact page. You may write: “I hereby give notice that I withdraw from the contract for Crystal Caverns Premium access.” Include the purchase date, Stripe payment reference, account email, your name and the date of the notice. You do not need to give a reason.

8. Operation and changes to the Service

We aim to keep the Service secure and operational, but we do not guarantee uninterrupted or error-free access. We may perform maintenance, correct errors and change game balance, features or technical requirements. For a material adverse change to a time-limited paid service, we will comply with the notice and termination rights granted to consumers by law.

If a longer interruption within our control prevents material use of Premium, we may provide a reasonable solution by extending the access period or issuing a refund. Planned features are not promises until they are released in the Service.

9. Account suspension and termination

We may suspend an account or feature where necessary for security, prevention of payment fraud, compliance with law or stopping a material breach. If a breach can be remedied, we will provide an opportunity to do so, except where immediate intervention is required. Suspension does not remove statutory claims relating to a Service already purchased.

When an account is deleted, account data and cloud saves are removed as described in the Privacy Notice. Payment and accounting data subject to a legal retention obligation may be retained, but will not be used to restore the account. A local game save stored in the browser must be deleted by the user through the browser settings.

10. Liability

We are liable to the extent required by applicable law. We are not responsible for loss caused by the user's device, internet connection, a third-party service, a breach of these Terms or an event that we cannot reasonably control. The user must keep their device and important local data reasonably secure.

Nothing in these Terms excludes or limits liability for intent, gross negligence, death or personal injury, or any other rights or liability that cannot lawfully be excluded. A consumer always retains the mandatory rights of their country of residence.

11. Changes to these Terms

We may change these Terms because of legal requirements, security needs or development of the Service. We will publish the new version and date on this page. We will give reasonable advance notice through the Service or an account contact channel of a material change affecting an active account or paid service. Less favourable terms will not be applied retroactively to an earlier purchase.

12. Governing law and disputes

These Terms are governed by Estonian law. This choice does not deprive an EU consumer of the mandatory protection of their country of residence. Please first submit a complaint using the address on the Contact page, including a description of the problem and the relevant payment reference. We will try to resolve the dispute in good faith.

An Estonian consumer may refer a dispute to the Consumer Disputes Committee operating at the Consumer Protection and Technical Regulatory Authority. A consumer may also bring proceedings before a competent court in accordance with mandatory jurisdiction rules.