My Post-Apocalyptic Shelter Levels Up Infinitely!

After killing two magical creatures that seemed to come out of a fantasy world, on the way back to the shelter, the mutated creatures that used to frighten Somo seemed much cuter.

"It's outrageous to rub fireballs. If all the creatures described in fantasy novels were to appear, humankind's survival would be in jeopardy."

Fireballs are not very powerful.

This kind of monster, as long as a human is armed with a Gatling gun and has a bunker, even if it comes dozens or hundreds at a time, it will be difficult to break through the metal defense line.

But beyond that, if there were other creatures like the mythical dragon

"I hope not, otherwise human beings will always be rats in their holes!"

The more he thought about the future of mankind, the more Sumo felt that the future was bleak.

He shook his head and forced himself to forget all the worries in his mind. When he saw the shelter in front of him at the end of the horizon, he felt a long-lost sense of security.

There is no better place to have your own kennel than a golden kennel!

In just six days, Sumo had completely regarded this area as his own territory.

Oreo, who had his tail hanging down along the way, became more energetic as he got closer to the shelter.

After carefully looking around the shelter to see that there was no trace of strangers, Somo came to the back of the hill. He opened the back door of the shelter and got in.

Crouching through the long tunnel, as the vision suddenly became clearer, one person and one dog returned to the shelter again.

Daylight falls silently through the light refraction vents.

Forming a dazzling pillar of light.

In the light beam, you can see some tiny dust dancing in the air with the naked eye.

Although there are still no green sprouts sprouting from the vegetable culture medium placed in the center of the base, the earthy fragrance coming out brings a sense of life to the base.

"This is my refuge. If you want to destroy it, step on my body first."

Thinking that the current shelter would be broken into and destroyed by these kobold beasts, Somo's fists hardened.

Sitting at the table, taking advantage of the sunlight, Soma took out the crossbow from the space and placed it on the table.

After a few days, enough survival points and generators were collected, and it was imminent to upgrade the electric automatic weapons.

A crossbow that can only shoot one arrow is useful when hunting, but it has too many limitations when facing an enemy head-on.

Especially when encountering such a monster with magical power, it is even more unsatisfactory.

Concentrating on the system and silently reciting the system in his mind, Somo looked intently at the crossbow.

[Hunting Compound Crossbow (Ordinary)]

Description: A long-range combat tool with slow reloading speed, high muzzle velocity and considerable lethality. It is an essential tool for survival in the wilderness.

Rate of fire: 140m/s

Range: 80m (maximum damage), 165m (effective damage), 330m (farthest damage)

Upgrade direction one: Upgrade the crossbow material, increase the poundage of the crossbow, reduce the winding pressure, and require survival points (180)

Upgrade direction two: Upgrade crossbow materials, add electric winding device, change shooting mode, add automatic shooting burst mode, need survival points (400)

"The second upgrade direction requires 400 survival points. After upgrading the generator, I now only have a balance of 303 points. Let's see if I can find a way to get some items to reduce the demand."

After pondering for a moment, Sumo concentrated his thoughts, and the need for upgrading from Direction 1 popped up.

Throwing away some parts whose names he had never heard of, Sumo noticed two major items in demand:

500W electric motor, composite lithium battery or lead-acid battery.

"Good guy, this 500W motor weighs at least five or six kilograms. With the addition of a larger battery, the crossbow weighs at least 20 kilograms."

"And considering the serious increase in metal fatigue, if the firing rate is increased, it will not take long to be damaged."

After a little calculation in his mind, Sumo discovered the advantages and disadvantages of the electric crossbow.

The lethality brought by the 500w motor is definitely enough. Even if the loss in the process is included, there will be at least 200 joules of kinetic energy.

But at the same time, such a manic output power will inevitably bring about a loss of accuracy. The battery and motor must be placed at the rear. In this way, the center of gravity of the entire weapon will be rearward, and it is estimated that it will be difficult to hold it up and aim.

"Forget it, there is no good solution after worrying so much. Let's solve the current problem first."

Keeping all the approximate parameters in mind, Sumo opened the trading market and began to search for products.

After adding the handling fee, the current trading market is no longer as popular as it was in the past few days, with hundreds of thousands of pages of products reduced to seven or eight pages in one day.

Few people are wealthy enough to use their points to pay for express delivery to buy items like Sumo does now.

After flipping through all the pages and finding no items, Sumo had no choice but to come to the World Channel.

[Suma: Purchase a 500W electric motor, no limit on size and weight, and a composite lithium battery or lead-acid battery]

[Suma: I have started purchasing and will be responsible for the courier costs. If you have items to sell, please bring them in for trading! 】

After surviving the first disaster, everyone had two small speakers for daily calls.

When Sumo's first statement appeared on the World Channel, it didn't attract everyone's attention, but when the second one appeared, it immediately detonated the World Channel.

"Damn it, Su Shen is hugging me in the front row, the immortal is caressing my head, and my hair is bound to be immortal. Without further ado, I am saving this wave of luck to open the box."

"Congratulations on opening the Claw Knife - battle-damaged quality. Sorry, you went to the wrong set."

"Motors, lithium batteries, has Su Shen already reached the electrical age? I'm still lighting a torch? Oh, I don't even have a torch, so that's okay!"

"I have a lithium battery installed on my mobile phone, Su Shen, do you want it?"

"The express delivery fee is not cheap, it is really inhumane."

"Our Chinese Somo is so awesome! Foreign Somo is not good, but our Chinese Somo is!"

As time went by, more and more people flocked to the World Channel just to watch Sumo's speech from the front row.

Seeing the popularity, Sumo was also happy and directly posted the acquisition information on the trading channel.

After a while, after spending 800ml of psionic water and 11 disaster points, I successfully received a simple-looking motor that looked like it had been disassembled from an electric car, weighing a full 12kg.

As for lithium batteries, after some screening, Sumo spent 600ml of nether energy water and 40 disaster points to buy two sets of batteries, which are:

20 Ah, 8V ternary lithium battery, used to install on the electric crossbow.

400 Ah, 8V standard lithium iron phosphate battery, used for daily electricity consumption in the early stage of the shelter.

As a 12-volt standard battery, the 400 Ah battery can store about five kilowatt hours of electricity in normal times, which is fully sufficient for the initial use requirements of the shelter.

After arranging the crossbow, battery and motor, this time, when Somo looked at it, the need for survival points had changed.

[Hunting Compound Crossbow (Ordinary)]

Upgrade direction one: Upgrade the crossbow material, increase the poundage of the crossbow, reduce the winding pressure, and require survival points (180)

Upgrade direction two: Upgrade crossbow materials, add electric winding device, change design mode, add automatic shooting burst mode, need survival points (220)

"Huh? The two most important items have only been reduced by 180 points. Can this kind of upgrade also change the material properties?"

Without hesitation, Sumo directly chose to upgrade.

As soon as the light moved, after deducting 220 survival points, a green light scattered out, merging the three items into a pool of blue-light water in almost less than a second.

As the frequency of green light scatters more frequently, the watery substance begins to solidify and gradually changes into a new shape (see this chapter).

The motor weighing 10 kilograms disappeared, and the bulky lithium battery didn't know what had become of it.

An airbag-like device is formed underneath the original hand rest.

The most important thing is that the newly released electric crossbow actually comes with a luxurious sight, which is really exciting.

Looking at the big killer weapon in front of him, Sumo, who was originally worried about the possibility of the kobolds attacking, suddenly saw a green number on his head!

A sense of security +10,000!