My Doomsday Shelter Unlimited Upgrades

Waiting for the fire to go out!

The torch does not last forever, it will go out within two hours, and he will become a lamb waiting to be slaughtered.

"Calm... Be sure to be calm."

Even if the danger was imminent, Chen Yang tried his best to calm down, complaining blindly about the crisis was useless, trying to find a solution.

It’s definitely not enough to sit and wait for death, but it’s also not enough to rush out of the shelter and fight them. It is necessary to create a group of fortifications with the shelter as the core.

The idea of ​​lighting torches in the room was immediately ruled out. His ventilation system was not particularly perfect, and he would easily choke himself to death if he was not careful. The carbon dioxide released by the combustion would most likely cause him to die unconsciously.

"Could you please go outside and light the torches before the fire goes out?"

Chen Yang thought for a moment and shook his head. This is not good. He cannot guarantee that the torch will have a [-]% deterrent effect. If the wolves see him come out of the shelter and come to eat it under the flames, he will definitely not be able to run that far wolf's.

More traps can only be arranged before the fire is extinguished.

"Two hours, there is still hope!"

Just do what you say, Chen Yang doesn't want to waste a minute and a second, as for what kind of trap mechanism to make, he can only think about it while doing it.

The first one, ground thorns!

He doesn't know where the wolves will attack from. It may be the gate or the wall, but they must always enter the house. The first line of defense is the ground thorn.

The ground thorns are made of alloy and iron blocks, and after the nails are made, the ropes are made of plant fibers, and the nails are connected together in rows and columns.

[Easy stabbing (normal)]:

A simple thorn made of iron nails.

Upgrade Direction 30: Enhance the durability and sharpness of the ground thorns, and enhance the bleeding effect after being injured by the ground thorns. [-] survival points are required.

Upgrade direction 30: Change the structure of the ground thorns, strengthen the lethality of the ground thorns and make the ground thorns have a deceleration effect, [-] survival points are required.

System comment: In order to survive, let's upgrade!

Chapter 26 The defensive battle of the refuge, the front line of life and death

"That's right, in order to survive, you really have to be promoted."

While Chen Yang was preparing to upgrade, he didn't lose his mind in a hurry. Now there are not many survival points left. In order to arrange as many defensive facilities as possible, they must be saved.

He intends to choose between upgrade direction [-] and upgrade direction [-]. Judging from the current situation, upgrade direction [-] obviously has some advantages.

He didn't consider durability for the time being. If he died here today, the ground thorns would be useless for 1 years. The lethality of the ground thorns must be enhanced.

At the same time, the deceleration effect is also very good for the current situation. The iron wool wolf will slow down when stepping on it. In case of a big fall, it may buy him a few seconds of reaction time.

5 units of iron and 5 units of steel are added, and 30 survival points become 10 survival points.

"upgrade!"

[Decelerating Ground Thorn (Normal)]:

Spikes made of iron nails and alloys have a slowing effect.

Upgrade Direction 30: Enhance the durability and sharpness of the ground thorns, and enhance the bleeding effect after being injured by the ground thorns. [-] survival points are required.

Upgrade direction 300: Change the structure of the ground thorns, greatly enhance the lethality of the ground thorns, add a power grid to the ground thorns, and connect high-voltage electricity from the outside, [-] survival points are required.

"There are no additional attributes..."

Chen Yang was a little disappointed, but the probability is there after all, the item quality will be improved with a 20.00% probability, but now it is the normal result.

Adhering to the mentality of being able to use it, Chen Yang quickly placed the ground thorns around the outer wall of the shelter.

After the ground thorns are arranged, the next step is to strengthen the weak points of the shelter.

First of all, the window is a breakthrough. The material of the window is different from that of the outer wall. With the IQ of wolves, they will definitely find this, at least they will definitely try to attack from the window.

Chen Yang was a little thankful that he made the window smaller. If he really wanted to make a huge floor-to-ceiling window, he would almost be no different from being on a flat ground.

Although the window is small now, he can't guarantee that the iron wool wolf won't get in. He can't afford that risk, so the window must be reinforced.

"security window!"

The first thing Chen Yang thought of was the anti-theft windows, which are a bit similar to the iron bars and windows of prisons. Adding a layer of iron or alloy railings to the inside of the windows of the shelter can effectively prevent iron wool wolves from breaking through the windows.

The railings made of alloy are the strongest. Chen Yang took out the alloy from the system, made it into a thick stick shape, and spliced ​​them one by one according to the shape of a well, and a security window was ready.

As for why not directly seal the windows with alloy plates, Chen Yang also thought about it for a while.

All the windows are sealed with alloy plates. Firstly, the material is not enough, and secondly, the safety factor is not as good as the fence.

After the iron wolf broke the window, he still needed to break through the alloy fence. During this process, he could attack the iron wolf through the gap in the fence.

After all the windows were installed, Chen Yang immediately upgraded the structure and durability of the fence, consuming 5 units of extra alloy steel and 10 survival points.

The upgraded alloy fence is obviously much stronger in structure. On the basis of maintaining the gap size of the railing, the geometric structure has been changed, and some triangular frames have been used to make the anti-theft window stronger.

Chen Yang glanced at the torch outside the window. Now about an hour has passed, and the light of the fire has obviously dimmed a lot. In addition, with so many wolves surrounding the shelter, the carbon dioxide produced by breathing has slightly increased in the area, and the duration of the torch is longer than expected. even less.

There is at most half an hour left.

"We can only strengthen the house at the end."

Accompanied by the earthquake before, there were many cracks in the stone house, which Chen Yang could repair, all of which were patched with alloy plates.

Until the last crack was repaired, all the steel in the backpack was consumed, and there were only 45 survival points left.

Meanwhile, the fire went out!

The wolf king whined, and the wolves rushed forward. Just as Chen Yang thought, the first thing the wolves attacked were the doors and windows.

Thirty or so wolves kept bumping into the shelter, maybe they were impatient to wait, or maybe they were affected by the red moon, the wolves were extremely violent at this time.

The strength of wolves is not as strong as that of cheetahs, tigers or heart-wrenching bulls, but that does not mean that they are weak. Under the constant collision of wolves, cracks began to appear in the glass windows, but the door remained motionless.

The individually upgraded stone gate is really reassuring.

The wolves also discovered this feature, and directly gave up the attack on the gate.

Some of the iron wool wolves who had originally attacked the gate joined the team that hit the windows, and some began to hit the cracks in the outer wall of the stone house.

Through the window, Chen Yang saw that many wolves had already hit their heads and bled, but the impact became more and more severe every time.

"Made, that's crazy."