National Tower Defense: Start with a Small Wooden House to Fight Against Billions of Zombies

Overnight, more than a billion people traveled to a tower defense world with hundreds of millions of zombies. Everyone starts in a small wooden house and can only survive by building city walls and turrets to defend against zombies! And Qiao Yansen discovered that he had one more technology tree than others! Alien automated factory! When others are still knocking stones with pickaxes. Qiao Yansen has realized an automated one-stop production line for mining, transportation, smelting and storage! When others are timid and dare not expand their base and can only survive. Qiao Yansen's railway has been built to the other side of the sea. The train is running all the way, crushing countless zombies! When others feel that they have established a foothold on a certain continent and plan to build an empire of survivors. Qiao Yansen's rocket has taken off, and his journey is to the stars... A sea of ​​corpses! This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.