VR-CPR is a virtual reality simulation of emergency situations, designed to be a training tool for teaching the procedure of cardiopulmonary resuscitation (CPR). The system offers three photo-realistic scenarios in which the user is called to help a victim of cardiac arrest, receiving real-time feedback of the chest compression performance. At the beginning of each demo you will be able to select among three different scenarios: hospital, out-of-hospital and paediatric. Each scenario differs for victim and AED availability, requiring the user to perform different protocols. Before starting, it is possible to customize some aspects, such as the AED arrival time, how many chest compression cycles to perform, which cycles should be shockable or not-shockable, and the AED that you should use. Our partnership with some of the most important AED producers allowed us to reproduce the real life units, with the same audio and video hints the user would get during a real