Skylines is intensely satisfying, such as when solving a troublesome traffic snarl or when all the buildings in a district begin leveling up because you've provided the right combination of services and amenities. It's often soothing, like when flying the free camera around or peering down at the tiny NPCs living in your creation. It can also be terrifically tense, like when you realize your industrial zone has poisoned the groundwater of a residential area or when a power grid gets overloaded and you've got no money to add a new plant. The citizens of Skylines are pretty tolerant, but let them suffer too long and they'll abandon you in droves.