Description: An unknown virus spreads all over the world. The infected become zombies!!! Humans can only resist the attack of zombies and survive.... Player have to survive within 20 days, and a large number of zombies will attack every day. Player need to ensure that obstacles are not destroyed, otherwise player and survivors will be killed! There will be a rest period after the battle every day, player can use this time to search the map, change the work of teammates and change weapons.