My research focuses on health promotion and digital interventions, particularly on serious games and gamified applications. My research approaches the topic from many perspectives; development through user-centered design process, evaluation of the usability, feasibility and effectiveness of the intervention, as well as the implementation process of digital interventions. The research aims to provide both the knowledge and methods to support the work of professionals, to promote the health of individuals and to support the use of high-quality and evidence-based digital interventions in health and social care for disease prevention, treatment and rehabilitation. The aim is also to provide information that can be used in the design and development of new digital interventions for health promotion purposes.