National Infrastructure: Start Building the Great Wall

Suddenly, all human beings were thrown into another world.
Rainforest, desert, ocean, snow.Starting with a hammer, everyone can only build houses and expand their territories by themselves.
In this way, it can resist the monsters and cannibals from the outside world.
The bigger the building, the more powerful troops can be summoned.To build a village and a city.
Ye Ping came through with the god-level wonder system, and the beginning was to build the Great Wall!
So, when others are huddled and shivering in the stone house, I am afraid that outside monsters will break into the house.
Ye Ping has taken [-] Great Qin Ruishis to guard the Great Wall, killed the gluttonous demon tide, and officially founded the country!
Great Pyramid, Hanging Gardens, Stonehenge, Colossus, Colosseum.
Undead Mummy Legion, Goblin Growers, Beast Fighters, Dragon Knights...
When others finally upgrade to a castle, Ye Ping has established an indestructible dynasty, integrating nine god-level wonders, with the...