Backed by science
The origin of the game is in social psychology and is based on the principle of inoculation. According to this theory, people can build up resistance to misleading and untrue news reports when they are confronted with a weaker version, comparable to how vaccines work. Hence, people will build up resistance and will become immune more quickly to disinformation that they are confronted with in real life. This is what we call pre-bunking (or pre-emptive debunking) as they can be one step ahead of disinformation: if you learn to look more critically at news reports and not just accept them without thinking, then there is also no need to take action after the event.