Chapter 68: Chapter 68 The Radiation Defense System Was Born

Jack checked his survival points first.

Plus the explosion at the ninth underground city, Jack had more than 150,000 survival points now.

The number was far beyond Jack's expectations. Jack had planned for a long time and could implement it now.

He wanted to install a layer of radiation-proof material on the refuge!

As the doomsday disaster continued to deepen, a problem that humans would never avoid in the future was nuclear pollution.

In this round of dealing with the mutants, humans had put a lot of their nuclear weapons into use. Now, many places had become deserted land because of the battle.

The living environment of human beings had been compressed by both nature and disaster.

In order to protect the last pure refuge, Jack had to make sure of its radiation-proof.

Thinking of this, Jack took action immediately!

"Automatically restore the special universe level metal wall (automatic heating)"

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