the regions will be areas you could travel to to get resources or shop or party The city is where you can party an action that may randomly cost money but raises your happiness however partying at full happiness causes a random event you may even find you have a son without even being married the things that happen will be random and both good or bad which you might not know about for a while The beach is a place to relax go swimming if you want you could collect salt water to convert to salt or fill a pond with it to breed certain fish or you could collect the sand for later a nice place to relax
I'd like if the city was similar to the town in that it had named npcs that you could befriend and you could convince some of them to move to the countryside town (Stardew Valley) and they bring their services to the town. Also it would be neat if there were shops in the city that could order your produce.
This topic is already being discussed in another thread--I encourage you to share your opinions there http://community.playstarbound.com/...e-in-stardew-and-what-would-be-in-them.15337/ peace