Global Cataclysm: Infinitely Upgrade Shelter

The next moment.

The voice of the system sounded directly:

[Materials required to build a minefield: steel, mines]

[1000 survival points required to build a minefield]

【.....】

【Do you want to build now!】

After the system's prompt fell, Zhao Chen's voice sounded instantly:

"Build, ~ build now!"

He became rich in a wave, and he was not short of these 1,000 life-saving points at all.

Soon.

A flash of light flashed, and a lot of steel disappeared, and there were still some remaining mines, well, almost gone.

The pace of construction is still very fast.

It's just a blink of an eye, and it's already built.

"Now in the entire shelter, the defense system already has minefields, knife areas, machine-gun bunkers ...."

"Well, that's enough for now!"

Zhao Chen silently counted the overall supplies in the shelter in his heart.

All the defenses are basically complete.

There are even armed drones, which is considered overfulfilled!

What Zhao Chen didn't say was the most basic construction.

That's the gun room, where you can get a range of guns and ammunition through system points.

That's the core of construction.

It could even be said that the entire vault relied on the gun room to survive.

As long as the gun room is there, most of the radiation creatures will have no effect on him.

"The defense system should be followed by a survival building, well....."

When it came to survival buildings, Zhao Chen fell into deep thought.

The survival building is currently only the personal training room.

There are many amusement facilities.

It's basically the same as nothing.

Recreational facilities were previously regulated, such as hot springs and the like.

Then it was delayed by various things.

Zhao Chen silently wrote down this matter and began to check the remaining materials.

Not a lot, but at least it can be said to be about the same, but all the materials are basically less than the storage of steel.

Seeing this, Zhao Chen felt a little urgent in his heart.

Steel is the most important link in the entire Vault.

After all, it represents whether the next phase of the Vault can be upgraded.

You must know which place the refuge belongs to Iron and Steel now.

According to his idea, at this stage, the steel vault can survive.

But what about the next cataclysm?

If you don't upgrade when the time comes, if it's cool, it's really cool.

Come to think of it.

Zhao Chen's brows tightened, and he muttered:

"Next day disaster, shelter upgrade...."

Then bring up the supplies needed to upgrade the Steel Vault.

After reading it, Zhao Chen had a headache.

【Tungsten Steel Shelter】

[Survival point 20000 required for upgrade]

[Upgrade Effect: The outer defense will be replaced with 10 meters thick tungsten steel.] (Defense +500)】

[Raw material required: 1000 tons of tungsten steel]

【....】

At this time, Zhao Chen only felt that his head was big.

That's right, survival points alone already require 20,000 survival points.

Not to mention 1,000 tons of tungsten steel.

Note that the focus is on 1,000 tons, this unit is extremely unfriendly to Zhao Chen.

This is the main quest.

There is a certain amount of difficulty, he can understand.

But this kind of difficulty, it's not that he doesn't want to understand.

It's that there's no way to say at all.

What is the concept of 1,000 tons, which is almost equivalent to the total amount of steel currently stored in the entire Vault.

That's a big part of it.

The survival point is understandable.

20,000 survival points may have been difficult in the past, but now....

It's still a lot of difficulty.

After all, Zhao Chen's wave of wealth is inexplicable.

To a large extent, it can only be said that it is an exception.

Speaking of radiation creatures, if you look at the entire Dragon Country or a city, there are indeed a lot of them. (If you read a violent novel, go to Feilu Novel Network!)

But what about the periphery?

Zhao Chen has almost exhausted all the surrounding areas at present.

We can only wait for the next riot.

Or maybe someone has channeled radiation creatures here.

Writing down the current few problems, Zhao Chen was in a trance.

"Upgrade the shelter, the lack of survival points...."

All of them are telling one thing.

That is, don't look at the fact that you have so many survival points now, and you seem to be very rich.

But you're still a poor creature in front of me.

Yes, Zhao Chen seemed to feel the merciless ridicule from the system.

After surviving the attack of radiation creatures, he fell into embarrassment again.

Subsequently, Zhao Chen slipped ....

cough, and then Zhao Chen returned to the shelter.

There's no way to change everything, just enjoy it.

After Zhao Chen left, the snow slid down from the sky one after another.

Back in the shelter, Hawkeye's voice rang out:

"Master, there is a message, do you want to see it. "

After Zhao Chen nodded, a transparent screen appeared in front of him.

Refuge exchanges.

Steelmaker: "How's the situation at the evacuation center?"

Fruit Grower: "Alas, I've always believed that there will be a blessing if you don't die in a catastrophe, but now I don't believe anymore that many people have died here due to the attack of radiation creatures. "

Battlefield manufacturer: "The main thing is alive, it's better than anything else, as for the rest, it doesn't matter, but I don't know when this natural disaster will end." "

Iron and steel manufacturer: "Alas, at present, it's time to take a step at a time, whispering in a dream, big guy, there is something I want to discuss with you." "

Whispers in a dream: "???"

Seeing the question mark made by Zhao Chen, the steel manufacturer immediately replied to the message.

Now in the entire exchange, no one has asked Zhao Chen about the refuge, and there are no casualties.

Isn't that asking in vain?

They have reason to believe that something happened to their shelter, and Zhao Chen will be fine.

Although I haven't seen Zhao Chen's refuge, this kind of confidence is so inexplicable.

"Boss, do you trade guns there, or do you have any excess?" "

Steel Shelter.

After seeing the information sent by the steel manufacturer, Zhao Chen fell silent.

In fact, he had long anticipated the scene that would appear.

After all, everyone is not stupid, and after getting along for so long, there will definitely be some understanding.

Not to mention that when he went to save people, everyone saw it....

Now Zhao Chen is thinking about whether to trade with steel manufacturers.

The transaction could possibly pose a threat to Zhao Chen.

After all, firearms are not ordinary things.

Furthermore, it falls into the hands of others.

It's troubled times!

It's not a peaceful world.

People's hearts always change.

Don't look at everyone being so polite now, Zhao Chen has reason to believe that one day everyone will only ask for more and more.

Until he couldn't meet everyone's requests.

That's when it's going to backfire.

Able to drown Zhao Chen's backlash.

So Zhao Chen chose to ......

PS: The number that appeared in the shelter in the previous chapter has been changed, and that number is most likely caused by the anti-theft mechanism, don't blame the factory!.