Walking in Dead Silence

In the alien continent, there are many countries. The creatures here have no foreign technology. The country is based on agriculture and mulberry, and the cities are facing each other with beacon fire, so they are ready for war. The people are farming and weaving in the wilderness, just like the scene in the pre-Qin Dynasty. It is at this time that the zombie virus breaks out, the people eat each other, and the world is in chaos. Where to go in the apocalypse?