He is also the director of CPS, the TU-Delft Centre for Serious Gaming. He is a co-founder and a board member of SAGANET– the Netherlands’ Simulation and Gaming Association – as well as GaLA, the European Network of Excellence in Serious Games (2010-2014) and a member of the Netherlands Institute of Government (NIG). He is an associate editor of Simulation & Gaming and Policy Studies Journal. His subjects of interest regard the development, use and evaluation of interactive and participatory methods for policy analysis and policy development in general, and gaming-simulation, serious games, virtual worlds in particular.