Border Attack – Doom Survivals

With zombies took the surface of the earth, human beings were forced to hide in the poor underground Refuge. To make a living, mankind starts to grow food, manufacture products and traded through the underground railway network. However, the worsen habitat, and the scarcity of the resources caused great pressure of survival, which forced countries to attack each other. History has told us that only war can terminate war, and finally achieve the unity of human being.

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