How can archaeological cultural heritage be sustainably integrated into urban development and how can residents benefit from it in their everyday lives? This is the question addressed by the ArcheoDanube project, in which we developed a mobile app together with our partner Sustainication e.V.: ArcheoTales! The app for Android and iOS enables the playful transfer of knowledge about archaeological sites and cultural heritage. In the form of a digital scavenger hunt, users can track down archaeological finds and discover treasures of the past in an innovative way.