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

The place where the weapons and equipment of the fourth-level civilization can crush the third-level civilization is the extensive application of gravity technology.

This not only brings weapons and equipment such as gravity cannons, gravity multi-layer shields, and gravity deflection shields, but also greatly improves mobility.

In terms of energy, the mass-to-energy conversion efficiency of quark fission reactors has also been greatly improved compared to nuclear fusion reactors.

Level 4 civilizations can still fly faster than light. Of course, this advantage cannot be reflected in the star system at this moment. But just relying on the other improvements is enough to crush the bugs who are still at the third level of civilization.

Sure enough, after the fourth-level civilized warships were put into the battlefield, the battlefield situation that was originally stalemate immediately shifted at this moment.

There were hundreds of billions of ferocious Zerg offspring in the entire star system. They fell like wheat in summer under the attack of gravity cannons.

Gravity bombs exploded one after another, and pieces of bugs were compressed into spheres and then exploded. Some bugs tried their best to escape, but when faced with warships with more powerful maneuverability, they were like ants crawling and could not escape at all.

Fight, can't beat. Escape, cannot escape. Even with a desperate blow, the energy cannons of the insects could not penetrate the defense of the multi-layered gravity shield at all, and could not even deal any damage.

Under this situation, Han Yang specially organized a battlefield salvage fleet to attack everywhere in the star system, collecting insect corpses everywhere, and then sent them to factories for decomposition.

Just kidding, those are all good things. They are rare minerals that the bugs have worked hard to mine from deep underground on the planet. Even if Han Yang wants to mine it, it will take a lot of effort, how can it be wasted.

In addition, the planets in this galaxy are generally relatively barren and contain very little minerals, so the corpses of these bugs cannot be wasted.

In fact, Han Yang also made special calculations and concluded that obtaining minerals by killing insects is at least seven times more efficient than mining the minerals yourself.

At this moment, facing the almost one-sided situation on the battlefield, Han Yang knew that as long as he was willing, he could wipe out all the Zerg in no more than ten years and kill the mother worm directly.

But Han Yang did not do this.

"The higher the technological level, the greater the demand for resources. Now that I have reached the fourth-level civilization stage, I need to build more factories and produce more equipment, but the resources are still in short supply..."

Of course, Han Yang could choose to mine minerals in other galaxies, but this would take too long, and Han Yang didn't want to wait.

"Compared to the previous level of about the second-level civilization, the resource mining efficiency of bugs in the current third-level civilization has improved a lot. Obviously, the improvement in technological level also allows the bugs to mine faster and better Extract more resources.

In this case... let me upgrade you again. "

Han Yang made up his mind.

In order to allow employees to work better and generate more wealth, as a boss, it is necessary to make some preliminary investments to improve the quality and abilities of employees.

Seeing that the bugs were still unable to achieve results and were unable to destroy even one of his battleships, Han Yang sighed in his heart and had no choice but to control a medium-sized battleship, actively close the gravity multi-layer shield, shut down the weapon system, and directly let It rushed into the insect colony.

Sure enough, the next moment, the battleship was swamped by endless insects. After a while, the battleship lost contact with Han Yang, and it was obvious that all the scum was swallowed up.

"I'm afraid one battleship is not enough...let's get a few more."

Han Yang thought and sent over some more warships. Afraid that the combat technology on the battleship alone would not be comprehensive enough, Han Yang also fed several engineering ships and transport ships, as well as some industrial spaceships specially customized for the insects.

The ensuing battle went on step by step. The mother worm still produced a large number of Zerg offspring every day, which were then harvested by Han Yang like wheat, and then broken down into various resources and sent to the factory.

With the support of two supply channels from the Zerg and self-exploited resources, Han Yang's industrial strength and technological level still maintain rapid development.

After waiting for several years, a change occurred that made Han Yang feel a little happy and a little scared at the same time.

He saw that the latest offspring of the Zerg mother body also applied various gravity-related technologies.

They are equipped with gravity shielding box gravity generation technology, which greatly improves their maneuverability. The projectiles they fired also had higher power, and the outside of their bodies began to be protected by a multi-layer gravity shield. Their endurance was also stronger, and they obviously had quark fission technology.

The Zerg offspring also split into a new type of combat unit that had never existed before: the gravity-defying worm.

This kind of bug is often very brave. When a battle breaks out, it will specifically burrow into places where there are many battleships. The other sub-bodies will also cover it.

After rushing not far from the battleship cluster, the gravity baneling bugs will explode themselves like gravity mines and gravity bombs, using super gravity to try to kill Han Yang's fleet.

The Zerg's combat effectiveness increased by more than a hundred times at this moment compared to before. The Zerg army, which was originally one-sided and easily crushed by Han Yang, could barely fight Han Yang back and forth at this moment.

This was what frightened Han Yang.

This once again allowed Han Yang to verify the powerful imitation learning ability of the Zerg.

If there is no limit to this ability, then...does this mean that if we feed them the technology of a sixth-level civilization, they can also grow to the level of a sixth-level civilization?

If the Zerg really grows to the level of sixth-level civilization, then, with its own powerful production capacity, will it not even be a rival to ordinary sixth-level civilization?

If such a strange life was born in the Milky Way, passed through its initial fragile period and finally developed, Han Yang could not imagine how terrible the consequences would be.

What makes Han Yang happy is that with the improvement of technological level, the efficiency of the Zerg mother body in producing offspring has been further improved. From the previous average of about 2000 million worms per day, it has increased tenfold to reach the current level. An average of about million heads per day.

The average mass of single-headed worms has also increased from about one ton before to about 1.3 tons now.

This obviously means that the mother worm's ability to exploit resources deep in the planet has been further improved.

With an average mass of about 2600 million tons per day, if all can be wiped out, Hanyang will be able to harvest an average of about 400 million tons of various mineral resources except iron every day. The pressure on resources will suddenly decrease, and the development speed will be accelerated. Faster.

Of course, all this is based on the premise that Han Yang can completely crush the Zerg and fully control the situation. For the rest of the fourth-level civilizations, not to mention harvesting resources, it would be good if they were not crushed and wiped out by the Zerg.

Even Han Yang, in order to fully control the situation, had to invest more than 300 million large, medium and small warships, and like running water, countless turrets, mines, space-based and land-based defense systems, etc. , and then completely suppressed the Zerg.

The vast flames of war spread across the entire star system. While suppressing the Zerg and steadily obtaining resources from their corpses, Han Yang climbed the technology tree with all his strength in the base and used all means to quickly restore his technology level.

Decades passed in a blink of an eye. Soon, Han Yang once again ushered in an extremely important breakthrough. The technology related to the dark force theory has made a comprehensive breakthrough, and Han Yang's technology level has truly risen to the fifth level of civilization.

From this moment on, Han Yang can once again manufacture various technological artifacts of level five civilizations, such as dark energy radiation weapons, dark energy decomposition weapons, etc. The outside of the spacecraft will also usher in a new generation of shield systems, dark energy multi-layer shields .

But Han Yang was not in a hurry to completely change his clothes at this moment.

He was worried that if he changed his clothes at this moment, if some accident happened, the technological creations of the fifth-level civilization would fall into the hands of the Zerg, causing the Zerg mother body to also be upgraded to the fifth-level civilization level.

He can completely suppress the Zerg mother body at the fourth level of civilization, but there is a little risk for the Zerg mother body at the fifth level civilization.

It is not a problem to wipe out its large army, but if a few daughter bodies accidentally escape and sneak away, if these daughter bodies have the ability to evolve into the mother body and then spread out in other galaxies, it will be great fun.

"It's better to get rid of all the Zerg first, and then update it to level five."

Han Yang thought secretly: "After upgrading to level five, my demand for resources will further increase dramatically. Killing the Zerg mother body will allow me to harvest a huge amount of resources from the mother body at once."

To Han Yang, the Zerg mother body is like a hen that lays golden eggs. Normally, you can wait patiently and let the water flow slowly. But now that we are suddenly experiencing a resource shortage, we can only use the hen itself to deal with it.

Han Yang didn't have any psychological burden at all about the current situation.

"Why did I work so hard to raise you? Isn't it just to be able to eat enough at this moment?"

As a result, Han Yang's hundreds of thousands of factories distributed on various planets, dwarf planets, and space suddenly increased their production capacity at this moment.

A large amount of resources poured into the factory without any cost, and they quickly turned into battleships and sailed into space.

In a short period of time, the number of warships in Han Yang's fleet surged to more than 1000 million.

Anyway, these warships can be refurbished and retrained at that time, and resources will not be wasted at all, so there is nothing to worry about.

More than 1000 million warships are a huge number that no level four civilization can even imagine. Normally, it would take more than a dozen level four civilizations to unite to put together such a huge fleet.

But even if they are pieced together, because there are too many, there will inevitably be many problems in internal communication and coordination, leading to a huge gap between actual combat power and theoretical maximum combat power.

But those problems don't exist here at Han Yang. It can almost be said that the actual combat power is whatever the theoretical maximum combat power is.

If we compare the actual combat power, I am afraid that it cannot be compared to a dozen level 50 civilizations united. At least level peak civilizations in their heyday must unite.

Under such circumstances, the combat power equivalent to the combined strength of more than 50 peak level four civilizations in their heyday was put into the battlefield.

At this time, even the Zerg mother body, which is known for its terrifying production capacity, cannot withstand it.

With an average daily production of more than 200 million daughter bodies, the total number of neutron bodies in the star system has skyrocketed to hundreds of billions at this moment. But even with such a large number, they were still completely crushed by Han Yang and harvested piece by piece.

Numerous detectors are deployed on the edge of the galaxy, closely monitoring every direction around the star to prevent any fish from slipping through the net.

After several years of fighting, all the Zerg offspring around the galaxy were cleared. The Zerg mother body also had to gather its forces and gathered all its forces around the planet it occupied.

Perhaps sensing a life-and-death crisis, the efficiency of the Zerg mother body in producing offspring once again increased, once again soaring to an average of more than 500 million a day.

At the same time, due to the full contraction, the protective power was extremely enhanced, and the space around the planet was limited, Han Yang could not invest too many troops at the same time. The situation on the battlefield became stalemate, and Han Yang was unable to advance even an inch.

"Isn't it just a waste? Then just waste it. If you spend more time, you can send me more resources."

Han Yang was not anxious at all.

So around this planet, a huge war began again.

Han Yang saw that on the surface of this planet, or on the body of the Zerg mother body, there were more than 1000 million large worms scattered around.

Those worms are obviously specialized shield worms. Under their joint support, a giant protective shield covering the entire planet was raised, completely covering the entire planet.

There are hundreds of millions of land-based air defense bugs scattered on the mother body of the Zerg. They are like Hanyang's land-based air defense base, constantly spraying gravity artillery projectiles, high-speed missile bugs, high-energy laser beams, mine bugs, etc. into space.

Hundreds of billions of bugs together form a huge and sophisticated war machine.

Any normal level 4 civilization, even if ten level 4 civilizations join forces, will be completely crushed in front of this war machine.

But even so, Han Yang still maintained absolute suppression of the Zerg.

He was waiting unhurriedly, consuming and harvesting.

On average, hundreds of millions of Zerg offspring bodies were transported away by Han Yang every day and thrown into the decomposition factory.

This situation lasted for a full decade. At this moment, Han Yang saw that the efficiency of the Zerg mother's production of daughter insects had suddenly dropped from the previous average of more than 500 million per day to the current average of only 300 million per day.

And...the diameter of this planet has decreased by 500 meters in these ten years.

Or it can be said that the body thickness of the Zerg mother body has been reduced by 500 meters.

"Mother, you've lost weight..."

Han Yang's heart was filled with emotion and pity.

After all, the female insect has lost so much weight, it is obvious that she cannot squeeze out much oil and water... (End of this chapter)