Contributor biography

Harko Verhagen is an associate professor at the Department of Computer and Systems Sciences, Stockholm University. His research has focused on agent-based simulation of social interaction, social interaction in and around computer game play, social ontology and agent models, use of social media in online education, and issues of design for hybrid social spaces. He has published over 100 peer-reviewed papers, book chapters etc. and guest edited special issues of journals such as Computational and Mathematical Organization Theory, Journal of Gaming and Virtual Worlds, and Logic Journal of the IGPL. His publication list is available via

Magnus Johansson is a researcher and lecturer at the Department of Game Design, Uppsala University, Campus Gotland. His research interest is often focused on the player and groups of players from a qualitative perspective, often observing the activity of play and how players interact when playing. Previous publications deal with the social aspects of online games such as norms, social rules, harassment, anonymity and toxic gaming. Other perspectives that Johansson have studied include how to create socially believable non-player characters and how to design and evaluate games from a usability perspective.

Wander Jager is working at the University College Groningen and is the managing director of the Groningen Center for Social Complexity Studies. He is working on social complex issues like diffusion of green technology and practices, littering behaviour, crowd behaviour, man–environment interactions, societal polarisation, migration, dynamics of depopulation and dealing with flooding risks. He has published widely in the field of social complexity, and has been guest editor for special issues such as ‘The human actor in ecological-economic models’ (Ecological Economics), ‘Complexities in markets’ (Journal of Business Research), ‘Agent-Based Modeling of Innovation Diffusion’ (Journal of Product Innovation and Management) and Social Simulation in Environmental Psychology (Journal of Environmental Psychology).