Build your city at the bottom of the ocean.
The surface of the Earth became barren and inhospitable, so humanity went to the salty depths of the seas and oceans to restore civilization.
Gather resources, build vertical layered structures and create an oceanic utopia. You will also need to be careful not to draw too much attention from the larger marine creatures or the colony will come to an end.
Aquatico is already available on PC with an initial 10% discount.