Terms of Service

1. What this covers

These terms apply to all Quantum Native properties: quantumnative.io, Quantris, Quantum Chess, Ponq, Bloch Invaders, and any other games or services we operate. "Quantum Native" and "we" mean Quantum Realm Games LLC, doing business as Quantum Native, which operates these services. By creating an account, or by using any of our services, you agree to these terms and to our Privacy Policy.

You must be at least 13 years old to create an account, or 16 where your local law sets that age for consenting to online services. If you are under 18, a parent or guardian must agree to these terms on your behalf. We do not knowingly collect personal information from children below these ages; if you believe a child has created an account, email support@quantumnative.io and we will remove it.

2. Your account

You can sign in with Google, Discord, GitHub, or supported platform accounts such as Steam where available. Your Quantum Native account works across our properties. You are responsible for all activity under your account.

3. Paid services, subscriptions, and Steam entitlements

Some Quantum Native services may offer paid purchases, premium features, trials, or recurring subscriptions. Web and PWA subscriptions are processed by Stripe. Steam purchases are processed by Valve through Steam. We do not store your full payment card number.

If you start a Stripe subscription, you authorize Stripe to charge the payment method you provide on a recurring basis for the plan shown at checkout, plus any applicable taxes, until you cancel. Trial subscriptions convert to paid subscriptions at the end of the trial unless canceled before the trial ends. You can manage or cancel a Stripe subscription from the account screen or the Stripe-hosted customer portal.

Canceling a subscription stops future renewal charges but does not automatically refund the current billing period unless required by law or separately approved by us. Refund requests for Stripe subscriptions should be sent to support@quantumnative.io. Refunds for Steam purchases are handled through Steam and Valve's refund process.

Quantum Chess on Steam may include bundled premium access for a linked Quantum Native account. Steam-linked premium grants require account linking and ownership verification. Bundled access is not cash, has no separate cash value, and may be revoked or adjusted if a purchase is refunded, reversed, found fraudulent, or no longer qualifies.

4. Games in development

Many of our games are under active development. This means:

• Features may be added, changed, or removed
• Bugs will happen
• Game data or progress may be reset during major updates

We'll do our best to communicate significant changes ahead of time.

5. Blog comments

When you post comments on our blog, you agree to:

• Keep it civil. No harassment, hate speech, or personal attacks.
• Not post spam, ads, or malicious links.
• Not impersonate others.

We may remove comments or restrict accounts that violate these guidelines. Comments may be automatically screened for toxicity.

6. Acceptable use

Across all of our games and services, you agree not to:

• Use cheats, exploits, or unauthorized modifications
• Manipulate leaderboards or scores
• Reverse engineer or decompile our software, except as an open-source license we publish for a specific component expressly allows
• Use our services for anything illegal

7. Personal and community use; commercial and institutional use

Your access to our games, including free web versions, PWA installs, and copies purchased on Steam or other stores, is licensed for your personal, non-commercial use.

Community play is welcome. Clubs, student groups, friends, and other informal groups may organize tournaments and events on our games without a license, and a teacher may use the free web version with their own students. Three conditions apply: you do not charge for access to the game itself (a small entry fee that goes to prizes or refreshments is fine); you do not present the event as run, sponsored, or endorsed by Quantum Native; and the games run on the official app or store versions. If you run one, tell us at licensing@quantumnative.io. We like to know, and we can often help.

Business use needs a license. Operating our games for the public or for commercial purposes requires a separate license from Quantum Native. This includes, for example: running a game on a kiosk, arcade cabinet, or public installation; exhibiting a game at a venue, museum, gallery, trade show, festival, or event; offering gameplay as part of a paid or ticketed experience; hosting or rebroadcasting our games as a service; and organizing tournaments or events on behalf of a company or brand, including for promotion, marketing, recruiting, or staff events. If you want to do any of these, we'd love to hear from you: licensing@quantumnative.io.

Schools and institutions. A school club is community play and needs nothing from us. A school, district, or other institution that adopts our games as part of instruction, or that needs student accounts, classroom tools, or teaching materials, should contact us first; we work these out case by case. Museums, science centers, and similar venues are covered by the paragraph above.

Streaming and content are welcome. Stream our games, record them, and make videos, clips, screenshots, thumbnails, and other content from your play, on monetized channels included. Use the games' names to say what you are playing, and run community events on stream under the community terms above. None of this is commercial operation under this section. "Hosting or rebroadcasting our games as a service" means offering the games themselves through a streaming or cloud platform, not showing your play. Send us a link; we share what we like.

8. Intellectual property and trademarks

Quantum Native, our games, and all related content (graphics, audio, code, game mechanics) are owned by Quantum Native. Our games are powered by Quantum Forge, our proprietary quantum simulation engine. You may not reproduce, distribute, or create derivative works without permission.

Quantum Chess® is a registered trademark of Christopher Cantwell (U.S. Reg. No. 5,242,360), used under license by Quantum Realm Games LLC. Quantum Native, Quantum Forge, Quantris, Ponq, and Bloch Invaders are trademarks of Quantum Native. Nothing in these terms, and no open-source license covering any of our code, grants any right to use these names or our logos to brand a product, service, event, or tournament. Showing the games and naming them in your own streams, videos, and posts is covered by section 7 and needs no permission. Sanctioned use of these marks — for example for tournaments or exhibitions — is available under a separate agreement via licensing@quantumnative.io.

9. User content

Content you create (comments, bug reports, feedback, replays) remains yours. By posting it on our platforms, you grant us permission to display it and use it to improve our services. We may implement similar ideas independently.

10. No warranties

Our games and services are provided "as is." We don't guarantee uninterrupted operation, preservation of all data, or compatibility with every device or browser.

11. Limitation of liability

To the extent permitted by law, Quantum Native is not liable for indirect, incidental, or consequential damages arising from your use of our services.

12. Changes to these terms

We may update these terms. The date at the top says when. For material changes we will tell account holders in the app or by email before they take effect, and continued use after that date is acceptance.

13. Termination

We may suspend or terminate accounts that violate these terms. You may stop using our services at any time; account deletion is available from the account screen or by emailing support@quantumnative.io.

14. Governing law

These terms are governed by the laws of the State of California, United States, without regard to its conflict-of-law rules, and any dispute will be brought in the state or federal courts located there. If you live in a jurisdiction whose consumer-protection law gives you rights these terms cannot take away, those rights still apply.

15. Contact

Questions? Email support@quantumnative.io