Shrinking Watercity

You are the major of a floating plattform on a big ocean. Your goal is to create an ark to survive. Not just you, but even your citizen. You will have to create a small city, to gain all the nessecary material that you need. By the time going onwards you population will raise and the weight will start damaging your plattforms and maybe destroy them. If not this way, you can mismanage your city by let you citizen starve to death or prohibit living space to them. If so, they will start riots and d...