[Ding, has been successfully upgraded to a steel shelter, survival point -2000]
[Remaining Survival Points: 2700]
【………】
The entire rock shelter suddenly began to tremble.
The outermost rock structure is constantly evolving, transforming into pale silver steel.
“What’s wrong?!”
“Is there an earthquake?!”
“Sir, let’s take refuge outside, in case of collapse, we will all be buried here.”
“Woooo
“……..”
Feel the shaking of the entire rock shelter.
Ying Mengyao and Qiao Qian, who were sitting on the sofa, suddenly stood up nervously, and Rhubarb also began to scream restlessly.
As for the meat rabbits, meat ducks, and white-feathered chickens in the animal breeding room.
Their reaction is even more violent.
I was scared to pee on the spot.
If it weren’t for the previous upgrade of the inferior sewage system, which could directly clean up their excrement, it is estimated that dealing with this kind of trivial matter would have made Zhao Chen’s brain hurt.
“Don’t get excited, it’s just a routine operation.”
Zhao Chen waved his hand, signaling everyone not to be nervous.
The complete transformation of the rock structure into a five-meter-thick steel structure naturally produces violent shaking in the process.
Anyway, it won’t collapse the shelter.
After about a minute, the entire rock shelter…
To be precise, it should be the steel shelter, which has restored “six seven seven” to a calm state, but the current defensive capability is far from being comparable to before.
[Mission Progress: Comfort 100/1000, Survivability 300/1000, Defense 150/1000]
【……..】
The defense capability has been directly increased by 100 points.
Upgrading the overall structure of the shelter once can directly complete 10% of the mission progress.
If you upgrade again.
It is estimated that the increase will be even higher.
Zhao Chen silently glanced at the next level of the Steel Shelter——
【Steel Shelter】
【Upgrade direction: tungsten steel shelter (20000)】
[Upgrade effect: The outer defense will be replaced with ten-meter-thick tungsten steel to improve the defense capability of the shelter.] (Defense +500)】
【Upgrade raw material: tungsten steel 1000 tons】
[Attributes can be attached to consume certain survival points according to the effect]
【………】
That’s 20,000 survival points.
Let Zhao Chen once think that he was wrong.
Although the effect is very powerful, it can directly complete half of the mission progress of the defense ability, but the survival points required are too outrageous, right?!
Complete the third main quest.
I only have to get 10,000 survival points.
“The thickness doubled again, a full ten meters thick layer of defense.”
“The house is about four stories high, and the height is replaced by thickness, and just thinking about it makes it feel invulnerable.”
“Moreover, the material used is tungsten steel.”
“………”
Tungsten steel is the hardest steel!
It has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance and corrosion resistance.
In particular, its high hardness and wear resistance, which basically remain unchanged even at a temperature of 500, still have a high hardness at 1000.
It is known as the teeth of modern industry.
The degree of use of tungsten steel products is very extensive.
However, throughout the entire country of dragons, there are only 4 enterprises with an annual output of tungsten steel of more than 1,000 tons.
And all of them are not within the scope of Hangzhou City.
This upgrade condition, the opening is 1000 tons of tungsten steel, it is just like a joke, it is estimated that it can only use survival points to forcibly upgrade the type.
“Isn’t that embarrassing me.”
Zhao Chen thought silently in his heart.
The next stage of the steel shelter is the tungsten steel shelter that requires 20,000 survival points.
This is already the hardest steel.
So.
In the next stage, what materials will be used to build the shelter?
It is impossible to imagine, and it is impossible to imagine a harder material.
“Sir, what’s going on?”
“Nothing, just a little bit of an increase in our survival rate, now able to withstand the possibility of meteorite falling shockwaves… Yes%. ”
In Zhao Chen’s memory.
The small meteorite that fell in Hangcheng was a suburb far from his shelter.
With the defensive power of the Steel Shelter, withstanding this wave is not a problem at all.
“Huh?”
The existence of the shelter system is not known.
Qiao Qian and Ying Mengyao could not understand the meaning of Zhao Chen’s words.
“Okay, let’s get straight to the next question.”
“Yes.” Qiao Qian buried her doubts in her heart and continued, “The second question is about the design of the Steel Gate. ”
“What’s wrong with the Steel Gate?”
“It’s only one meter thick, and even if there are three, it feels like a weak defense.”
“This is easy to solve.”
“Moreover, it does not yet have the function of automatically opening the door.” Qiao Qian said.
There is no automatic door opening function, and entry and exit need to be manual, which is indeed very troublesome.
You have to go over and press the button.
The door of steel will slowly open, and the efficiency is too low.
“Defense, automation.”
“These two problems are not difficult to solve.”
“………”
In his own hands, there are still 2700 survival points.
Improving the defense of the gate is naturally not a problem.
Zhao Chen directly inquired in his heart, the upgrade conditions of the three steel doors——
【Steel Gate (3)】
[Upgrade direction: thickened version of Steel Gate (600)]
[Upgrade effect: to a thickness of three meters (defense +60)]
[Upgrade raw materials: 30 tons of steel] ([ Read more novels by visiting our website: t.ly/d_BHZ ]) ）
[Attributes can be attached to consume certain survival points according to the effect]
【………】
Upgrading the entire shelter structure costs a huge number of survival points.
However, simply upgrade the three steel doors.
It’s much cheaper.
“Directly upgrade the three steel doors.”
“……..”
[Ding, has been successfully upgraded to a thickened version of Steelgate x3, survival point -600]
【Remaining survival points: 2100】
【……..】
As the gateway to the Steel Refuge, the thickness of the three Steel Gates has directly tripled, and although the materials used have not changed, the defense ability has been truly improved.
For example, the M16 assault rifle can only penetrate 9 mm thick steel plates within 400 meters.
The Barrett heavy sniper rifle can penetrate 16 mm thick steel plates within 200 meters.
Even a tank shell can penetrate a steel plate 1 meter thick at most.
Facing the three-meter-thick steel gate, it can only mean that there is nothing to do, unless it is a special armor-piercing shell!
[Mission progress: Comfort 100/1000, Survivability 300/1000, Defense 210/1000]
【……..】
“Additional property – automatic door opening.”
Just completed the upgrade.
Zhao Chen followed the advice given by Qiao Qian and immediately attached new attributes to it.
[Ding, thickened version of the steel door, additional automatic door opening attribute]
[Automatic door opening (elementary): can distinguish between friend and foe, within a range of 10 meters, to automatically open and close the door (10)]
【Survival Point: 100】
【……..】
This price is much more affordable.
A mere 100 survival points, as long as it can improve the defense of the Vault, it is worth the effort.
After all, hoarding survival points all the time is just the most wasteful thing to do.
Only by leaving a small number of survival points and fully transforming the remaining survival points into the driving force for the development of the shelter can we give full play to the maximum usefulness of the refuge0…..
Instead of letting it be a series of useless numbers in the system.
Determine additional attributes.
[Ding, thickened version of the steel door, additional automatic door opening attribute, survival point -100]
[Remaining Survival Points: 2000]
【……..】
[Mission Progress: Comfort 100/1000, Survivability 300/1000, Defense 220/1000]
【……..】
It cost 700 survival points to directly solve the problem raised by Qiao Qian.
That’s where survival points come in!
And the rating of defense ability is also catching up, soaring all the way to 220, which is not much different from the survivability of the highest rating.
“Any other suggestions?”
“In terms of hot weapons, there is only one submachine gun, and the ammunition reserve is not much, which is actually a bit small.”
“There’s nothing I can do about it.”
The buildings of the Steel Vault can also be directly solved with survival points.
However, the problem of hot weapons.
For a while, I couldn’t reach the conditions to complete the production line and supply enough ammunition.
Even the Long Yan .05 submachine gun and 10 magazines presented to Qiao Qian have completed the second main quest and the items that the system rewards him.
“The ban on guns in the Land of Dragons is very strict.”
“The industrial-grade 3D printer I bought can use materials to print some daily necessities, or industrial supplies.”
“But if you want to print a hot weapon, the current conditions are not enough to achieve it.”
“……….”
Zhao Chen shook his head and said.
Survival points are indeed very useful, but they do not mean that they can be created out of nothing.
Even if you upgrade it again to meet the conditions for printing hot weapons, but it lacks the most important gun-making drawings, it is only an ornament, and it can only be used.
At this stage.
I can only make do with a crossbow with a divine arm.
Able to shoot ten in a row.
Range up to 300 meters.
In addition, the concealment characteristics of the crossbow are actually not inferior to the performance of ordinary pistols.
“Okay.”
“The defense facilities inside the shelter, if improved according to what I said, are actually almost enough for 0.8.”
“However, although the main enemy we have to fight against is natural disasters, the external defense facilities against human beings are actually an essential component.”
“……..”
There’s no way to get more hot weapons.
Qiao Qian could only temporarily give up more of her ideas, and instead replaced the target with the external defense facilities of the shelter.
Today’s steel sanctuary.
All that is promoted is internal defense.
The external defense can almost be said to be undefended.
Others secretly touch your door, it is estimated that they do not have any notice, it is easy to cause the situation of being overcast just after going out, so it is also necessary to prepare in advance.
“External defense facilities ……..”
PS: New books are on the shelves, ask for a wave of automatic subscriptions!
Ps: The author has a lot of words per chapter.,A chapter is about two chapters of ordinary updates.,As long as you subscribe well, you’ll work hard to explode!
PS: Five more sent (20,000 words), disassembled is actually equivalent to ten more, and the author will continue to update after waking up, and today a total of about 20 chapters (4 words) will be updated! …….。
