Now I reference Roller Coaster Tycoon because this is a game where the player designs an amusement park. they layout the roller coasters and other rides, design the paths, and all other amenities. The task is to make money by serving people. But the digital people, who are provided by the game, are particular about their comfort. So the most hair raising ride will make no money if the paths are too narrow or if there are no concessions, bathrooms, or water fountains in the vicinity. You design to serve people. It is very cool, very compelling, and one of the most successful video games out there.