Somebody should make Sim-15-minute-City. A Sim City-inspired game based on urbanist principles. Start with a desolate suburban moonscape and turn it into a delightful 15 minute city.
@MegaMichelle I did more or less that with my last #CitiesSkylines game, although it doesn't have any explicit 15 minute city target. In fact, people would happily cycle from one end of the city to an outlying village at the other end of the map if you build the infrastructure. They'll also cycle straight over a hill instead of going round, which is a bit of a weak point in the algorithm