Z-Raid

Everyone who fell under the influence of a strange dark substance turned into a walking corpse, that is, became a zombie. The survivors tried to hide in a closed base, but hordes of zombies are trying to get  there too. But letting the zombies approach the gates of the base means putting an end to humanity, there is only one thing left - to fight back the monsters, and so that nothing remains of them!

An army of zombies is already on the way, which means that soon they will begin to break down doors and barriers in order to enter the territory and devour all living things. Therefore, your task is to put automatic weapons in the path of the zombies. Each eliminated zombie will leave behind a bonus, use them wisely, for example, improve and build new weapons, not forgetting about units.