All the People Build a City-State: I Can See Resource Prompts

People all over the world, organized as families, were transported to another world, ushering in the era of city-states. In the wilderness, there are tiny small towns covering dozens of acres. Natural disasters such as earthquakes, tornadoes, snowstorms, and floods can strike at any time. In addition, there are barbarians and monsters attacking the city. If you want to live well in the city, you must strengthen the city walls, expand the city, and build an army... The source of all resources is the crystal mines produced underground outside the city. As Ye Feng walked out of the city, he found a prompt in his sight: There were crystal mines ten meters underground... While other cities are in danger, Ye Feng has opened countless branch cities and has tens of millions of troops... This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.