Citizens

You will find your city with many people wandering throughout the streets. Their skill levels can be from 1 to 10 and the higher the skill, the more they will earn. There are a few ways to get people into your city.

Personal Note: I started off with taking the highest from the free NPCs and eventually went into Menu -> Citizens to eject the lowers ones and replaced them when I had ample Diamonds to spare. It's best to use Diamonds on NPCs with 9 or 10, since the are available from time to time!