Staying alive is a healthcare-based serious game: In a virtual 3D world, anyone can train and practice the potentially lifesaving techniques. Healthcare professionals, as well as the public, can visualize and train to administer first aid, in a collaborative 3D environment using the Web. They can evaluate their results, and even have training sessions with friends, thanks to a Facebook custom application. This experience is aimed at helping to reduce the number of deaths related to cardiac arrest which kills more than 250,000 and 40,000 people each year in the United States and France, respectively. Read some articles in French or English. You can also test it!