Advice/suggestions for bastion turning into city
Hello fellow nerds! I host a D&D 5e campaign with my friends. In this campaign, a nearby village has been destroyed by a dragon, and the party, who own a bastion, offered to accept the survivors as refugees. Roughly half the survivors accepted and are on their way.
This campaign is very much, “I will roll with what the players want to do,” and it’s turning partly into a city builder. They are going to be starting a city from the ground up with the survivors and we will see where that takes them.
The problem
Building and managing a city step by step will require game systems covering pricing, costs, infrastructure, urban development, resource allocation, and trade route management.
I am unsure of where to start. If anyone has any suggestions, or know of any preexisting systems that could use to make this work, I would be very grateful if be pointed in the right direction.