Rizvic, SelmaBoskovic, DusankaMijatovic, BojanBucciero, AlbertoFanini, BrunoGraf, HolgerPescarin, SofiaRizvic, Selma2023-09-022023-09-022023978-3-03868-217-22312-6124https://doi.org/10.2312/gch.20231173https://diglib.eg.org:443/handle/10.2312/gch20231173Interactive Digital Storytelling (IDS) is a way of communicating information in the metaverse [BH22]. Gameplay elements added to these applications turn them into serious games that can offer unique immersive experiences of historical objects and events to museum visitors and online. In this paper, we describe this "Advanced IDS" methodology on a use case of the Trebinje Fortresses VR project. Austrian Hungarian Fortresses around Trebinje, Bosnia, and Herzegovina, are in decay, hardly accessible, and completely neglected. They can be explored in Virtual Reality through an application that combines Interactive Digital Storytelling narrated by officers who used to inhabit them with gameplays where the user becomes a carrier pigeon and carries the messages from one fortress to another while avoiding eagle attacks. After the first mission is successfully completed the user gets a task to accomplish in a fortress underground, and, if successful, gets the opportunity to explore digitized museum exhibits found in the fortress. The application is installed in the Trebinje Museum. The quality of user experience will be proven through an evaluation study.Attribution 4.0 International LicenseCCS Concepts: Human-centered computing → User studies; Computing methodologies → Virtual reality; Simulation types and techniquesHumancentered computing → User studiesComputing methodologies → Virtual realitySimulation types and techniques10.2312/gch.20231173167-1715 pages