The design that not too far away from the world can be help people to get more interested in. For example Plague Inc. which is a game designed by Ndemic Creations. The game micmic the way that the plague would spread in the world and the player are the designer for the plague.
The idea is to design a game or an app or anything that can micmic the real situation if happened not too vague. like a game that helped to built subway of the city, etc.