My Doomsday Shelter Unlimited Upgrades

Chen Yang made a simple calculation. Even if he ate 2 kilograms of meat a day, the police chief would also eat [-] kilograms. With so much wolf meat and the meat of heartless and poisonous cattle, he would have to eat at least a few months.

Chen Yang's life ideal of eating meat until he vomited, he never expected to realize it in this apocalypse.

Of course, such an algorithm is only limited to himself. The preservation of meat is a big problem. He has a system to preserve fresh meat forever, but even if others have so much meat, they can't eat it for a few days.

There is no refrigerator without electricity, and fresh meat will go bad within a few days in summer.

After dealing with the iron wolf, the rest is the trickiest part.

What about vampire bats?Chen Yang only felt his head buzzing.

Chapter 30 Arranging ground thorn traps, wolf bones as crossbows

If bats exist in nature, they can prey on a large number of pests and spread pollen. They are definitely an animal that is beneficial to humans.

At the same time, bats are generally extremely timid and live in dark environments. Most of them live in mountain caves away from the hustle and bustle of the city.

Such a creature was originally a small expert at preying on pests. It sounds harmless to humans and animals, but it will be different if it is actually eaten.

Bats carry more than 1000 viruses, hundreds of which may pose a threat to humans.

Some lawbreakers specialize in hunting this exotic animal for human consumption. Even if the bat meat is cooked thoroughly, the large number of viruses on it will not disappear completely, and it will become a deadly poison in the mouth.

Of course, the vampire bat is a new species that has been mutated, but Chen Yang estimates that, except for Batman, no bat can escape the fate of carrying a large amount of viruses.

In order to verify his conjecture, Chen Yang went back to the refuge to wake up the sleeping sheriff.

As soon as the expert makes a move, you will know if there is any!

The sheriff ran to the bat to have a look, not to mention he was interested in eating, he directly bit his trouser leg to drag him a little farther away, seeing that Chen Yang was as motionless as a mountain, he started throwing pits on the spot again, to see if he wanted to The look of burying the bat.

Well, if you eat it, you can't eat it.

Meat is not good, and Chen Yang has no intention of recycling the skin, bones or sharp claws. What if they are all infected with a virus.

It's a pity to throw away a bat the size of a pterosaur, but there's nothing he can do about it.

After dismantling the bat through the system, even the blood on the ground disappeared. Chen Yang didn't plan to bury the bat, but planned to throw it directly into the bottomless cliff to make it clean.

Back at the refuge, Chen Yang upgraded the directions of the sewage pipes one and two respectively.

The first upgrade direction is to increase the radius of the pipeline to prevent the bat meat from being blocked in the pipeline.

The second upgrade direction is to enhance the corrosion resistance of the sewage pipeline. If this kind of pipeline is to be used to deal with acid rain, corrosion resistance is also essential.

100 survival points mixed with 10 units of plastic, the sewage pipes have been fully upgraded.

After throwing down all the parts of the bat, Chen Yang officially began to set up the fortifications of the shelter.

The alarm bell is still needed. Chen Yang set up the warning line of the refuge again according to the previous method, but this time the range of the warning line is wider. He directly pulled the warning line one kilometer away from the refuge. After the cordon was triggered, he still had time to react and prepare.

The second is the ground thorns. Last night, because there were not enough survival points, not only did the upgrade direction of the ground thorns choose one of the two, but also the number of ground thorns was not enough. Chen Yang directly rounded up and made [-] square meters of ground thorns. By the way, direction one has also been upgraded.

Taking advantage of the fact that the sky was about to become completely dark, Chen Yang quickly arranged the ground spikes at the entrance of the golf course.

Dig a small hole on the ground, put the thorns down, and then bury them with weeds. At the same time, put a small branch above the haystack to mark it, so that you can avoid it. The thorn trap is ready.

In addition to the stadium entrance, Chen Yang also set up some ground thorn traps near the warning line, and the rest were placed around the refuge.

The current ground thorn has double debuffs of deceleration and bleeding, and it is placed a little farther away from the shelter. If there is a monster that does not trigger the ground thorn, it may bleed to death before it rushes to the shelter.

Ground thorns are the first line of defense in the shelter. In addition, Chen Yang also plans to add a defense line of traps, just like the tombs of ancient emperors. Once he steps on the traps, random events such as poisonous gas and arrow rain will be triggered.

He doesn’t have any poisonous gas for the time being. As for the rain of arrows, he doesn’t have a clear design idea. After all, the surrounding area of ​​the shelter is still an open space. After building this area in the future, it may be possible to build the only road leading to the shelter. , so that the mechanism can be set inside.

"Wait, Arrow Rain?"

Thinking of this, Chen Yang suddenly felt that he had missed something, and tried to catch the signs of inspiration in his mind.

"Where there is an arrow, there is a bow... a crossbow! It's a crossbow! I really have a problem with my brain, how can I forget this?"

Chen Yang shouted idiot, for so many days in the last days, his thinking on weapons has been stuck in two extreme directions.

Either cold weapons such as knives, guns and sticks, or hot weapons such as pistols and gunpowder, completely ignoring the excessive weapon between the two-the crossbow.

The power of a crossbow is definitely not comparable to modern guns, but in the absence of guns, the crossbow is definitely a long-range weapon. Not only can it be used for long-distance combat, but its power is also greater than that of cold weapons.

Even if there are hot weapons in the future, crossbows are also weapons that can be used frequently. Modern special forces will be equipped with modern crossbows. Compared with guns, crossbows are extremely quiet and capable of assassination. If you hunt some monsters secretly in the future, Absolutely easy and ginkgo to use.

The crossbow itself can be made of wolf bone or cow bone, especially the iron wolf bone, which has a certain degree of cushioning toughness while maintaining hardness.

The crossbow bolts can be made of alloy or wolf fur.

Alloy arrows are powerful, but costly and heavy, and may not reach the expected range after being fired from a small crossbow. The hair of the iron wolf just overcomes these shortcomings of the alloy. The hair of the iron wolf is not only abundant , and it is relatively hard and sharp, there is no need for reprocessing, it can be used directly after being installed on the spear, even if it cannot be recycled, it does not matter.

Wolf bones were used to make crossbows, wolf hairs were used to make arrows, and the poison on the poisonous ox spear might be able to poison the arrows. Chen Yang felt that this would be a great success.

In fact, there are still many things he wants to do today that have not been completed, digging trenches, building barbed wire fences, and designing emergency escape routes. These are some refuge safety measures that he only thought of after the crisis last night, but now the sky is completely dark. When it got dark, Chen Yang didn't want to be exposed outside the refuge, so his thoughts wandered, why not make the crossbow first, which would be considered as an extra guarantee of survival.

Although Chen Yang is an engineering student, he has no clue about the principle and process of making a crossbow. He cannot make a simple model first and then upgrade it. If the model made cannot be upgraded, it will be a waste of materials. .

He opened the crafting panel of the cold weapon workbench. Before, he always felt that his weapons were sufficient, and he hadn't looked at the options here carefully, but now he searched through the search function, and he found the crossbow crafting interface.

Most of the crossbows that can be made in the cold weapon workbench are ancient crossbows, and there are no modern crossbows. Chen Yang made some choices and decided to make a Qin crossbow first.

Compared with the huge crossbows such as the rhubarb crossbow and Zhuge Liannu, the Qin crossbow is more suitable for individual combat. It is light in weight, has greater lethality, and is easy to use. Unlike other crossbows, just pulling the string requires A lot of strength.

The cost of an ordinary wooden Qin crossbow is 450 survival points. Chen Yang added materials such as wolf bones and plant fibers into it. As expected, the recipe for making the crossbow has changed, and the demand for survival points has also dropped to 100 points. .

When it comes to objects with complex structures like crossbows, the cost required for production has increased significantly. Chen Yang estimated that there are still a lot of processing fees in it, but he is not dissatisfied. These are all reasonable charges. If there is no He didn't even know how to start with the production function of the system.

100 survival points, 60 units of wolf bones, 10 units of plant fibers, plus a few units of iron blocks and alloys. Chen Yang also used two small production attribute improvement cards in a row, so he must make this crossbow As good as it gets, this may be his main combat weapon for some time to come.

[Are you sure to make Qin Crossbow 1? 】

"confirm!"

The production process of the system is very fast. Within ten seconds, an exquisite Qin crossbow made of white bones has appeared in the hand. The appearance of this crossbow alone has basically reached the level of a work of art.

[Wolf Bone Crossbow (Excellence)]:

The crossbow made of wolf bone has an effective range of about 80-200m (depending on the weight of the arrow), and is more powerful.

Upgrade direction 50: automatic filling system (50), expansion system (50), auxiliary aiming system (50), noise reduction system ([-])

Upgrade Direction 600: Change the material and structure of the crossbow, greatly increase the range and power, and require [-] survival points.

Additional attributes: Power +100%, 20% chance to generate explosive arrows when attacking, reloading speed +100%