Terms of Service
Rules for using Cardboard Kitsune.
These Terms explain the rules, responsibilities, and limitations that apply when using Cardboard Kitsune.
Last updated: June 20, 2026
1. Acceptance of these Terms
By accessing or using Cardboard Kitsune, you agree to these Terms of Service. If you do not agree with these Terms, you should not use the site or its services.
2. About Cardboard Kitsune
Cardboard Kitsune is an unofficial online simulator and community platform built for players who want to practice, test decks, organize games, and connect with other players online.
Cardboard Kitsune is not affiliated with, endorsed by, sponsored by, or officially connected to Bandai, Bandai Namco, Shueisha, Union Arena, or any related rights holders.
3. User accounts
Some features may require an account. You are responsible for keeping your login information secure and for activity that occurs under your account.
You agree not to impersonate others, create accounts for abusive purposes, interfere with the service, or use the platform in a way that harms other users or the community.
4. Acceptable use
You agree to use Cardboard Kitsune respectfully and lawfully. You may not use the site to harass others, exploit bugs, cheat, spam, distribute malware, attempt unauthorized access, or disrupt the platform.
We may suspend or remove access to accounts that violate these Terms, abuse the service, or create risk for the site or its users.
5. Community features
Cardboard Kitsune may include chat, events, rankings, friend features, profiles, or other community tools. You are responsible for the content and conduct you contribute through these features.
We may moderate, remove, restrict, or review content and accounts when necessary to protect the community or enforce these Terms.
6. Intellectual property
Cardboard Kitsune does not claim ownership of official game materials, trademarks, logos, card names, artwork, characters, or other intellectual property owned by their respective rights holders.
Original site design, custom platform features, original written content, original cosmetic assets, and Cardboard Kitsune branding are owned by Cardboard Kitsune or its respective creators unless otherwise stated.
7. Optional features and cosmetics
Cardboard Kitsune may offer optional cosmetic or community-support features. These features do not grant ownership of official game materials and do not make the site an official product.
Core gameplay access is intended to remain free. Optional items are not required to play.
8. Advertising
Cardboard Kitsune may display advertising on public informational pages to help support hosting, maintenance, and development costs.
Ads are not intended to appear on gameplay, deck builder, item shop, support, account, or other sensitive app areas.
9. Availability and changes
We may update, modify, suspend, or discontinue parts of the site at any time. We are not responsible for interruptions, errors, lost data, downtime, or changes to features.
10. No warranties
Cardboard Kitsune is provided “as is” and “as available.” We do not guarantee that the site will be error-free, uninterrupted, secure, or suitable for every purpose.
11. Limitation of liability
To the maximum extent allowed by law, Cardboard Kitsune and its operators are not liable for indirect, incidental, special, consequential, or punitive damages arising from use of the site.
12. Changes to these Terms
We may update these Terms from time to time. Continued use of the site after changes are posted means you accept the updated Terms.
13. Contact
Questions about these Terms can be sent to support@cardboard-kitsune.com.
Cardboard
Kitsune
The world's first simulator for the Union Arena trading card game.
Cards generously provided by

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