The digital representation of our past has long been an important tool in the interpretation of cultural heritage in museums. The recent rise in the use of Augmented Reality (AR) has seen various approaches to adding dynamic information to existent artefacts. The challenge is even greater when uncertainty further complexifies the represented history. This paper presents a critical analysis of an AR installation in the Sacra Infermeria museum in Valletta, Malta. After a description of the AR configuration of the installation, we present a thematic analysis carried out from a multidisciplinary focus group of 11 researchers in the field of Interactive Digital Narratives (IDN), from three perspectives: the technological implementation of the AR experience, the historical accuracy, gamification and the influence of social media-centred design, and the representation of the complexity arising from the uncertainty of history. In the light of the results of the multidisciplinary focus group, we provide a list of recommendations and heuristics at the end of the article. 

In this overview paper, we consider interactive digital narratives (IDN) as a means to represent and enable understanding of complex topics both at the public level (e.g. global warming, the COVID-19 pandemic, migration, or e-mobility) and at the personal level (trauma and other mental health issues, interpersonal relationships). We discuss scholarly, artistic, and non-fiction approaches to complexity, point out limitations of traditional media to represent complex issues, and describe the foundational advantages of IDN in this regard, using the SPP model as a conceptual lens. Then, we describe the problem space of IDN for complexity, and what aspects need further work in order to more fully realise the potential of IDN to represent complex topic in education and public communication.