Start sweeping the universe by rubbing the CPU with your hands.

Dark energy radiation weapon!

At this moment, through the last remaining spacecraft that Han Yang brought from the galaxy, the weapon with a rating of approximately 5.7, through precise manipulation of dark matter and dark energy, allowed them to directly act on apparent matter. The world directly affects the inside of each of the more than 300 million Zerg offspring.

In an instant, under the high temperature, heat and radiation, these numerous Zerg offspring, which could wipe out a low-level civilization, all died without any resistance.

A moment ago, the roaring mountains and tsunami were unstoppable. At this moment, the sea, rivers and sky were clear and the earth was clear.

The crushing of low-tech creatures by the creations of advanced civilizations was vividly demonstrated at this moment.

Unable to defend, unable to fight, even unable to sense at all, even dead without knowing why he died.

Han Yang felt calm in his heart, as if he had completed a small task, and dispatched an army of robots step by step to collect the corpses of these Zerg spawn.

There is only one iron mine where the base is located, and there is a lack of other minerals. At this stage, Han Yang is temporarily unable to develop a new mineral base. At this time, these Zerg corpses rich in various metal elements can just supply the next stage of construction.

Assuming that the mass of a Zerg offspring body is 1000 kilograms, 300 million heads equals 300 million tons. Among them, at least 40 tons of metal elements other than iron can be separated, which can be put to great use.

"It's just a pity that the spare parts and consumables of the dark energy radiation cannon have been used up. I can't use it again until I return to the fifth level of civilization."

And Han Yang also knew one thing very clearly, that is, the Zerg mother body would definitely not give up.

Seeing that the enemy is too powerful makes you afraid?
That is impossible. Han Yang suspected that the brains of strange beings like the Zerg were not developed enough to sense the so-called fear.

Although the Zerg offspring can show a certain degree of combat prowess and even cooperate with each other tacitly, this does not prevent them from being brainless. Everything that appears similar to wisdom is actually just their instinct and has nothing to do with wisdom.

He has eliminated 300 million Zerg offspring. In the next step, the Zerg mother body will inevitably send several times that number of offspring to continue attacking itself.

By then, he would have no dark energy radiation cannon to use.

"does not matter."

Han Yang secretly thought: "With my current development speed, I will soon be able to build an electromagnetic gun defense system for the second civilization stage. Then I will use the weapons of the second civilization to fight it."

While gathering the Zerg offspring, Han Yang also built the most important factory at the moment as quickly as possible.

Zerg daughter body decomposition factory.

A large number of Zerg spawn corpses were sent here. Here, they will go through a series of processes such as cutting, smelting, separation, purification, and smelting, and finally produce a variety of industrial compounds and elemental metal elements. Everything is an assembly line operation, which is extremely convenient and fast.

On an average day, this factory can complete the decomposition of 1000 Zerg offspring, ultimately producing about 130 tons of gold, silver, copper, tin and other metals.

This is the production capacity when it was just launched. It is expected that within 10 days, with the expansion of many robots, the decomposition efficiency of this factory will reach about 5 heads per day. It produces more than 6000 tons of various metals, which is enough at least for the initial stage of construction.

With the support of millions of tons of metal minerals decomposed from the corpses of more than 300 million Zerg offspring, and the support of tens of millions and hundreds of millions of tons of iron ore continuously mined from the underground of the base, the scale of this base has once again increased Began rapid expansion.

At this moment, its total area has reached 12 square kilometers, with various factories inside. The number of different factories has reached more than 1500, covering almost every category of industry.

In addition, tall planting buildings and breeding buildings have also been built.

Each of them has a height of about 80 meters, and is divided into 40 floors internally. Each floor has an area of ​​more than 1000 square meters, and the total available planting or breeding area is as high as square meters.

The extremely precious various crop seeds, animal embryos, etc. brought from the Milky Way began to develop in these two planting and breeding buildings.

At the beginning, because there were too few seeds, embryos, and fertilized eggs, the two buildings seemed empty. But it doesn't matter, Han Yang knows that he will soon have more seeds and embryos in his hands, the two buildings will soon be occupied, and he will be able to continuously harvest various biological products.

The internal transportation track used to connect different factories has also been built, with a total of more than 500 carriages running day and night under the leadership of 30 locomotives.

The total number of robots has also increased to about 75, and both functionality and stability are much higher than before.

After all, the assembly process of the robot factory and the production process level of each parts supply factory are also constantly iteratively upgraded.

At this time, Han Yang began to build the most important factory.

Electromagnetic gun factory.

The electromagnetic gun at the second civilization level is of course extremely simple for Han Yang. But compared with the industrial base that Han Yang has now, it still seems too difficult.

Because of this, Han Yang can only put its construction on the agenda after it has a certain industrial foundation.

At this moment, after continuous iteration, the parts produced by various parts supply factories have achieved a certain degree of accuracy and qualified performance. So after completing the initial construction, the electromagnetic gun factory immediately produced many electromagnetic guns of various types and performance.

A unified energy supply network was built for them. Han Yang deployed the first batch of 100 electromagnetic guns produced in the middle of the base. From a commanding position, he could launch long-range strikes in any direction of the base at any time.

It should be pointed out that the first batch of electromagnetic guns built by Han Yang were all models dedicated to the atmosphere.

The gas in the atmosphere is dense, so the electromagnetic gun projectiles need to consider aerodynamics and require a specialized shape. At the same time, its speed cannot be too high, otherwise the mere friction with the air will be enough to burn itself out.

After comprehensive testing, Han Yang confirmed that the projectiles fired by this batch of electromagnetic guns can reach a speed of up to 3 kilometers per second and a firing rate of 10 rounds per second. They still have a high hit rate within a distance of 10 kilometers. , it can also penetrate the shell of the Zerg offspring.

Some sub-bodies with thicker shells may not be able to penetrate, but that doesn’t matter, it’s just a matter of firing a few more shots.

Subsequently, Han Yang increased the number of electromagnetic guns to about 10,000 and deployed them around the base, surrounding the entire base.

The quantity was sufficient for the time being, and Han Yang immediately began to develop space vehicles for the second civilization stage, that is, various aircraft, satellites, spaceships, space-based electromagnetic guns, radar detection networks, early warning networks and the like.

As for nuclear weapons, they are even more essential.

Due to the lack of uranium and plutonium, it is temporarily difficult to build an atomic bomb. But it doesn’t matter, it’s trivial to make some hydrogen pops.

With the hydrogen bomb, Han Yang has the ability to flip the table under extreme circumstances, adding another layer of protection to his own safety.

At the same time, with a sufficient supply of weapons, Han Yang was finally able to open a branch base and further expand his business.

The mineral resources of this planet are relatively poor. If you mine them from the surface, you won't be able to extract many resources. If it goes deep underground, Han Yang does not have enough engineering capabilities for the time being. Even if there were, mining would be too cumbersome and production would be limited.

This reality forced Han Yang to once again look at the huge Zerg mother body that covered the entire planet.

The Zerg offspring it created drilled in and out of the planet's underground all day long, constantly mining various minerals deep underground on the planet...

"If I want to develop quickly and expand the base quickly, it's not enough to just rely on my own collection. These Zerg cannot be let go either."

Han Yang immediately decided on the overall development strategy of "self-collection and separation of Zerg offspring, both hands must be strong".

Calculating the time, it has been a few months since the last time the Zerg offspring besieged itself. The Zerg mother body should have already planned the next siege...

Sure enough, just as Han Yang expected, several newly launched satellites detected that more than 10,000 large daughter bodies erupted from the mother insect, rushing towards Planet No. 1 like an interstellar transport ship. .

The length of this large sub-body reaches hundreds of meters. A rough estimate means that a large sub-body can be loaded with thousands of small combat sub-bodies.

Based on this estimate, there are more than 10,000 large larvae, and the total number of combat larvae loaded should be more than 10 million.

In this way, after wiping them all out, the amount of various rare minerals he can harvest will be at least 140 million tons...

This was a fortune that was enough to make Han Yang's heart beat.

With so many minerals, it would take more than a year to collect them by yourself, even if you go all out!
Han Yang was highly motivated and immediately prepared for battle.

About a month later, the large Zerg offspring landed on the surface of the planet. The "hatch" of the abdomen opened, and a large number of strange-shaped bodies, large and small, poured out like soldiers, covering the mountains and plains like a tide, covering all the surface around Hanyang No. 1 Base.

The flying sub-bodies trying to attack the base from the air covered the sky and the sun, even covering the light of the stars.

There are even Zerg offspring with their own power in space, attacking the satellites, spaceships, etc. built by Han Yang!

As for the underground, let alone that. I don't know how many Zergs went underground and tried to attack the base through the tunnels. Their number was so large that it even caused the ground to vibrate.

The total number is larger than Han Yang's estimate, with the total number estimated to be 1200 million!

The attack begins immediately.

Han Yang did not hesitate and immediately controlled tens of thousands of electromagnetic cannons to block the attack.

Hydrogen bombs will not be used at this time. It is powerful, but it cannot be used because it is too powerful. Otherwise, if all the Zerg corpses are vaporized, where can I collect metal resources?

For a time, the surface of the dense-air planet was filled with deafening roars and weird neighing sounds of the Zerg offspring.

Countless electromagnetic gun projectiles were like plowing the ground, launching indiscriminate attacks on the surrounding areas of the base. Various newly built flying vehicles, including helicopters, fixed-wing aircraft, space-based electromagnetic guns, etc. roared together.

Even inside the base, Han Yang did not dare to take it lightly.

Although the surface of the base has been highly hardened and the Zerg should not be able to get in, we still have to be prepared for the worst. What if the Zerg really break in?
Just as Han Yang expected, after repeated attacks, the high-strength stratum was actually penetrated by the Zerg, and dozens of zombies came out with claws and teeth.

Fortunately, Han Yang was well prepared and had already dispatched robot warriors carrying portable electromagnetic guns to patrol inside the base. He was able to kill the Zerg spawn as soon as they appeared and avoid damage inside the base.

This battle was fought in a dark sky, with no light from the sun or the moon. The liquid in the bodies of the dead Zerg spawn dyed the earth black, and the corpses of numerous Zerg spawn were piled together like a hill.

Although adequate preparations were made before the war, Base No. 1 still suffered some damage.

Under the completely fearless onslaught of surface Zerg, underground Zerg, and flying Zerg, some Zerg rushed to the perimeter of the base. As a result, some walls, some electromagnetic guns, and some machinery were directly damaged by the violence of these Zerg. Fortunately, Han Yang was prepared and immediately used new equipment to top it, so that the defense line was not breached.

At this moment, after a siege that lasted for more than ten days, most of the more than 10 million Zerg that attacked this time were killed, and a small number of them escaped.

In other words, he was summoned away by the mother insect. After all, they are not afraid.

Looking at the mountains and seas of Zerg corpses outside the base, Han Yang was filled with joy.

"To develop the base, we still have to rely on you!"

Han Yang sighed and immediately sent an army of robots to clean the battlefield.

After a few months of pause, the Zerg daughter body decomposition factory in the base began to roar again.

While working hard to develop the base, Han Yang looked forward to the next Zerg siege.

This is almost bound to happen, it's just a matter of time.

Things developed just as Han Yang expected. After more than two months of silence, satellite detection showed that a large number of large daughter bodies were once again ejected from the Zerg mother body.

The number is as high as more than 100,000! This also means that the number of Zerg offspring that came to besiege this time is at least 100 million!

"very good!"

Han Yang was overjoyed.

I am not afraid that you will come, but I am afraid that you will not come! Don’t worry if you have too many, the more the better!

After the large sub-body landed, a new siege began.

At this moment, the area of ​​Base No. 100 has expanded to about 16 square kilometers, and the number of electromagnetic guns deployed on the periphery has also increased to about .

Han Yang was originally confident, but he thought he would still chop melons and vegetables this time. But as soon as the battle started, Han Yang was taken aback.

He saw that the Zerg spawn, which originally only used close combat and attacked with its sharp claws and teeth, now changed its fighting method.

They start firing projectiles! (End of chapter)