By accessing or using Guan Dan Online ("the Service"), you agree to be bound by these Terms of Service. If you do not agree to these terms, please do not use the Service. Guan Dan Online is a free, non-commercial card game platform provided for entertainment purposes.

You may play as a guest or create an account using email/password or Google OAuth. You are responsible for maintaining the security of your account credentials. You must be at least 13 years of age to use this Service. By creating an account, you represent that you meet this age requirement. We reserve the right to suspend or terminate accounts that violate these terms.

You agree not to: - Use the Service for any unlawful purpose - Harass, abuse, or threaten other users - Attempt to exploit, hack, or disrupt the Service - Use automated scripts or bots to interact with the Service in an unauthorized manner - Impersonate other users or misrepresent your identity - Attempt to manipulate rankings, ELO ratings, or game outcomes through exploits

Guan Dan (掼蛋) is a traditional Chinese card game in the public domain. The software, design, artwork, and original content of this platform are the property of the Service operator. User-generated content (display names, chat messages) remains the property of the respective users.

The Service is provided "as is" without warranties of any kind, either express or implied. We do not guarantee that the Service will be uninterrupted, error-free, or secure. In no event shall the Service operator be liable for any indirect, incidental, special, or consequential damages arising from your use of the Service. This is a hobby project and no guarantee of uptime or data persistence is made.

We reserve the right to modify these terms at any time. Continued use of the Service after changes constitutes acceptance of the updated terms. Significant changes will be communicated through the platform where possible.

If you have questions about these Terms of Service, please reach out via the platform or contact the site operator directly.