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in the Challenges feature

Different game modes:

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Company Information

Company name:
GameDuell GmbH 

Main office location:
Taubenstra├če 24-25, 10117 Berlin, Germany 

Commercial registry:
District of Berlin-Charlottenburg, HRB Nr. 90891 

VAT registration no.:
DE 813829498, Tax reference no.: 30 / 300 / 31448

Managing Directors 

Kai Bolik
Boris Wasmuth

Contact us 

If you have any questions regarding membership and use of the website, please contact our customer service:
contact@grandginrummy.com
For any questions concerning the company, please send an e-mail to:
press@grandginrummy.com
You can also fax us at +49 30 2887 68 299, or reach us by regular mail at GameDuell GmbH, Taubenstra├če 24-25, 10117 Berlin, Germany.


Dispute resolution proceedings before a consumer arbitration board / Online Dispute Resolution The European Commission provides a platform for online dispute resolution (ODR). Participation in corresponding dispute resolution proceedings before a consumer arbitration board is voluntary for GameDuell. Even if GameDuell does not participate in the dispute resolution proceedings, our Customer Service will continue to help you with problems: contact@grandginrummy.com.
The platform can be found at http://ec.europa.eu/consumers/odr/.