Z squad - is a game where you have to battle with zombies for 13 levels. To do this you can use a personal weapons and turrets.
"Z squad, we have a new job for you.
One of our lab was invaded by zombies.
But on the 13th floor still remain survivors.
They gathered important data.
Go into the lab, clean it from the zombies and evacuate our scientists and important data.
Sending data about the lab..."