To get more workers in Cities: Skylines, you need to ensure an efficient Transport System to the industrial sector from residential areas. Particularly because there aren’t enough workers around. With the normal development of your city, well on your way, you might have noticed that the industrial sector is pretty much down in the dumps. If you’ve ever played Cities: Skylines and started a city from scratch, you probably did it without taking a look at the tutorials which can be pretty tedious and annoying to go through.