German card game "Doppelkopf" Project Activity See All Activity > CategoriesCard Games LicenseGNU General Public License version 2.0 (GPLv2) Follow xDoppelkopf xDoppelkopf Web Site Other Useful Business Software Design, Manage and Secure your APIs Effortlessly API platform solution for developers and architects Book a demo today and find out how Gravitee's API platform makes even the most complex API ecosystems effortless to control. Learn More Rate This ProjectLogin To Rate This Project User Reviews Be the first to post a review of xDoppelkopf! Additional Project Details Programming LanguagePHP, JavaScript Database EnvironmentMySQL Registered 2007-11-10 Report inappropriate content