  Many people struggle to exercise regularly, raising the risk of serious
health-related issues. Extended reality (XR) exergames address these hurdles by
combining physical exercises with enjoyable, immersive gameplay. While a
growing body of research explores XR exergames, no previous review has
structured this rapidly expanding research landscape. We conducted a scoping
review of the current state of XR exergame research to (i) provide a structured
overview, (ii) highlight trends, and (iii) uncover knowledge gaps. After
identifying 1318 papers in human-computer interaction and medical databases, we
ultimately included 186 papers in our analysis. We provide a quantitative and
qualitative summary of XR exergame research, showing current trends and
potential future considerations. Finally, we provide a taxonomy of XR exergames
to help future design and methodological investigation and reporting.
