Mobile City, Unlimited Upgrades at the Beginning!

Ye Liangchen traveled to a post-apocalyptic world where zombies were raging and became the controller of a dilapidated mobile city. In this desperate wasteland, survivors can only survive by relying on the increasingly strengthened mobile city. While others were still fighting for the red accessories, Ye Liangchen relied on the unlimited upgrade entries to enhance the most basic white accessories such as "arrow tower" and "track wheel" to tens of millions of levels!