Management of population crowds and their access to critical infrastructures is crucial to effectively tackle incidents and avert undesirable situations derived from pandemics. To this end, modelling and simulation combined with serious games emerge as a proper tool to train current and future strategic engineers on this subject. Thus, we propose a simulation-based serious game to devise and improve operational procedures and regulations aimed at preventing access to urban areas and key facilities. The multi-platform application considers three different types of game to explore different situations and evaluate user’s proposal to face complex situations. In addition, we are still working on improving user experience and upgrading game mechanics.