Zombie City:Survival Simulator

In the 20XX, a sudden outbreak of the zombie virus broke out in the city of Z, with dozens of major zombie groups raging in the city ....
When the army finds out about this, it intends to use a nuclear bomb to clean up the entire city when the corpse infection is out of control ....
You need to control one kind of these zombies to survive in the city, please note that you may be infected by other, more powerful zombie groups.
Infecting ordinary people can make your zombies group stronger.
Let's start to experience the thrill of the zombie chasing the crowd!!