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

Han Yang was very convinced that when the Zerg spawn besieged him last time, they did not have any long-range attack methods, let alone the electromagnetic gun at this moment.

It didn't happen last time, but it did happen this time. Could it be that the Zerg female intentionally lowered her combat effectiveness last time?

Does it have this wisdom?
Suddenly, Han Yang remembered the last time he was besieged, when the base's defense line was briefly breached and then destroyed by the sub-bodies.

An idea suddenly emerged.

"Maybe... relying on my electromagnetic gun, the Zerg mother body also learned to make electromagnetic guns? No, it shouldn't be learned, it doesn't have enough intelligence. So... imitation?"

Perhaps the Zerg mother body doesn't know what the principle of the electromagnetic gun is at all. It only knows that by doing it this way, it can launch extremely powerful projectiles. It only knows it but doesn't know why.

But this "learning" ability is also amazing enough. This means that the Zerg mother body can continue to evolve!

This kind of strange life has never existed in the galaxy.

Han Yang suddenly felt a little interested. However, we are not in a hurry to explore it in detail for now, let’s hold on to this for now.

This sudden change caught Han Yang by surprise. Fortunately, Han Yang was always cautious enough, and the base's defense system also left enough margin.

Each factory building and other buildings are made of multi-layer alloy steel plates with extremely strong protective power. It can still defend against the electromagnetic gun attack of the Zerg children.

Besides, Han Yang would not let them attack in such a large scale. The own electromagnetic guns deployed throughout the base are also not vegetarian.

The great war begins again. This time the war was more intense than the last time.

The sky was filled with electromagnetic gun pellets flying back and forth, mixed with the fire and smoke of powerful chemical explosive explosions. A layer of fog covered thousands of miles around, like a dark night, and even the light of stars could not penetrate it. .

Space, sky, surface, and underground. In these four battlefields, Han Yang's earth-penetrating weapons, guided weapons, electromagnetic guns, aircraft, space-based forts, robot armies, torrents of armored vehicles, etc., compete with hundreds of millions of Zerg descendants. A desperate struggle began and lasted for more than two months.

As of now, the number of Zerg offspring killed by Han Yang is probably more than 5000 million. But at this moment, the number of sub-bodies participating in the siege of Base No. has not only not decreased, but has been increasing.

At every moment, large daughter bodies take off from Planet 2 and land on Planet 1 through the vast space of tens of millions of kilometers. Each large daughter body will bring with it anywhere from hundreds to as many as a thousand daughter bodies. .

In space, there seems to be a river connecting Planet No. 2 to Planet No. 1. The rolling river water rushes forward and never stops.

During this process, the external defense line of Base No. 1 was briefly breached many times. Once, a group of sub-groups even broke through the defense from underground and broke directly into a foundry. After completely destroying the factory, they were destroyed by Han Yang. exterminate.

Countless sub-bodies sacrificed their lives and continued to fight at all costs.

During this process, a large number of equipment and weapon systems belonging to Han Yang were destroyed and devoured by the sub-bodies.

Han Yang knew that if nothing unexpected happened, the Zerg mother body would be able to replicate its own weapon system again in a short period of time. By then, the weapon systems of the offspring would also be updated and their combat effectiveness would be stronger.

"You have to compete with me for quantity..."

Not to mention the continuous improvement in the combat effectiveness of the Zerg offspring. Even if it does not improve, any civilization with this level of technology will be completely destroyed just by this continuous numerical impact.

But at this moment, it was Han Yang who was guarding this base.

Not only was there no fear or panic in Han Yang's heart, but he was filled with pride.

"Compete with me on quantity? Fight with me in a war of attrition? Compete with me on the speed of technological advancement? Just come!"

Han Yang decisively adjusted the development strategy of Base No. 1 and allocated additional resources to the construction of weapons and equipment.

On hundreds of square kilometers of land, factories have sprung up. On the assembly line, parts flowed out one by one.

In the robot assembly factory, an armed robot equipped with a portable electromagnetic gun is produced every minute, more than 1,400 units a day, and Han Yang built a hundred such assembly factories in one go. .

In the armored vehicle factory, relying on the complete industrial chain and the supply of parts and components from all directions, armored combat vehicles with two power supply modes, self-contained batteries and remote power supply, can produce 2000 units a day in ten factories. That’s units a day.

Ten armed helicopter factories can produce 500 helicopters in a day. As soon as they were produced, they were immediately loaded with enough ammunition, took off with a roar, and rushed towards the Zerg cluster. Several kilometers away, the rapid electromagnetic gun system specially designed for air strikes began to roar.

Robots, armored vehicles, armed helicopters, satellites, space-based forts, land-based electromagnetic guns...

Hundreds of millions of Zerg spawn frantically besieged Base No. 1 like a tide, and the entire continent seemed to be boiling. But no matter how many Zerg spawn come and how fearless they are, the small Base No. 1 will always be the mainstay and will never fall!
Not only that, Han Yang even had extra energy to do other things.

While such a vast war was going on, the iteration and technological advancement of the base's internal factories never fell behind, or in other words, it was not affected at all.

Moreover, in addition to the combat troops, Han Yang also formed a large battlefield cleaning team.

He specially built an engineering team composed of more than 100 million intelligent machines and robots. They wandered the battlefield every day, collecting the bodies of the killed Zerg offspring and transporting them back to the base in a steady stream.

In order to cope with the influx of Zerg corpses like a tide, Han Yang had to build ten new decomposition factories. The daily decomposition processing capacity reached 50 Zerg corpses, and on average, various metal elements except iron could be produced every day. Up to 7 tons, strongly supporting Hanyang’s industrial and technological development.

It was precisely because of the existence of this team that the war lasted for several months, and more than 100 million Zerg offspring had been killed. As a result, there was no accumulation of corpses on the battlefield.

In addition, Han Yang also opened up more than 50 mineral bases on the planet despite the crazy attacks of the insects. As a result, the battlefield spread, and every disposal base became an attack target for the bugs.

In fact, even the railway lines were attacked by insects. Han Yang very simply produced more than 1000 million electromagnetic guns, which were specially laid along the railway lines, protecting all the 500 million kilometers of railway lines he currently owns.

Even with so many things going on at the same time, the total usage rate of Han Yang's computing power after upgrades and iterations is still less than one ten thousandth!

There is no way. Climbing the technology tree and upgrading and iterating the industrial system are subject to many constraints, and it is not just about having computing power. Han Yang can only continue to endure this situation where a lot of computing power is idle and wasted.

At this moment, a new round of Zerg spawn delivery began again. Satellite detection showed that the Zerg mother body once again increased the number of delivery. In just one spray, 100 large offspring were sprayed out.

At this moment, more than 100,000 large sub-bodies have gathered in space!
The terrifying production efficiency of the Zerg mother body was fully demonstrated at this moment.

At this moment, the number of Zerg offspring gathered on Planet 6 has climbed to more than million. However, with the arrival of the newly added sub-bodies, Han Yang suddenly discovered that the attack power of the sub-bodies had increased again.

Their electromagnetic cannon projectiles are faster and more powerful, their sub-body shell armor is thicker and tougher, they fly faster, and they dig underground faster.

Not only that, there are more categories of them, and even professional energy bugs have appeared!

Han Yang saw that they had specially differentiated a part of the bugs to collect water and then separate hydrogen and oxygen. After the remaining bugs fight for a period of time and exhaust their own energy reserves, they will return to the energy bugs to replenish some fusion fuel, and then return to the battlefield again.

In addition to energy bugs, there are specialized electromagnetic interference bugs, space assault bugs, missile bugs, heavy armored bugs, ground-burrowing self-destruction bugs, etc., etc., etc., all kinds of, diverse, hundreds of species in number, and can do To coordinate with each other and fight together.

After comprehensive evaluation, Han Yang even believed that the combat effectiveness of these bugs could now be compared to a peak level 2.9 civilization with a rating of .

Under such a siege like a mountain and a sea, even if Han Yang wanted to resist, it felt a little difficult.

But that's okay. Because at this moment, Han Yang has completed a very important breakthrough.

With the help of the second-level civilization level industrial system, continuous development, continuous iteration, and continuous improvement, Han Yang has broken through to the third-level civilization level!
The iconic technological creations of the third-level civilization are energy shields and energy cannons. These two technologies have overwhelming advantages over the second-level civilization!

So, with the crazy iteration of the factory, and the crazy production after the crazy iteration, soon, a giant protective shield with a diameter of 20 kilometers and a total coverage area of ​​more than 300 square kilometers was erected, covering all of the No. base. cover.

A large number of energy cannons also replaced the previous electromagnetic guns and began to use excited projectiles to attack the bugs.

As a result, the bugs, who had relied on their thick armor to achieve a higher survival rate than before, were defeated at this moment.

The overwhelming energy cannon projectiles bombarded down, no matter what kind of bug it was, even the heavy armored bug, it was instantly penetrated through the body at this moment, and died miserably.

In a single salvo, all insects within ten kilometers of Base No. 1, whether in the sky or on land, were killed, and not even a single one was left alive.

As the technology level returned to level three, the battlefield also advanced from the surface of the planet to space on a large scale for the first time.

Of course, the second-level civilization can also build spaceships, but Han Yang did not build a fleet. It's not that the computing power isn't enough, but that this planet is relatively short of resources and can't afford to waste so many resources.

But now with the energy shield, the survival rate of the spacecraft can be guaranteed. It is natural for the battlefield to advance into space.

As a result, Han Yang's speed in killing insects increased again. A large number of bugs were directly killed by space-based turrets and spacecraft before they could land on the ground.

At this moment, the female insect seemed to finally realize what a powerful enemy she was facing.

At this moment, it once again demonstrated its terrifyingly powerful production capabilities. Then Han Yang saw that its efficiency in producing Zerg offspring suddenly increased tenfold from the previous average of 100 million a day to 1000 million.

Under the siege of the endless sea of ​​insects, even if there was a level gap between the two sides, the spacecraft built by Han Yang would inevitably have its protective shield broken and then be destroyed. So not long after, Han Yang saw that protective shields at the third level of civilization appeared around those large transport bugs!
In fact, if Han Yang really wanted to prevent his own equipment from falling into the hands of the Zerg, he could still do it. Just bomb it with a large-yield hydrogen bomb missile.

But Han Yang did not do this.

He wanted to see how far the Zerg, which was slightly different from those in the galaxy and had the ability to upgrade and evolve, could evolve.

As a result, the projectiles fired by the bugs also began to have that energy excited state, and the main weapon system was upgraded from electromagnetic cannons to energy cannons.

The combat effectiveness of the insects suddenly increased several times, and the pressure faced by Han Yang also increased several times.

At this moment, the battlefield is no longer limited to one planet, but extends to the entire star system.

In the vast space, on every dwarf planet and in every void, fierce struggles are taking place.

Hanyang's mineral base and factories spread again in this smoke-filled galaxy, expanding to all planets above the scale, and the total number skyrocketed to more than 10.

A large number of transport ships began to appear in space, shuttling between different planets, transporting large amounts of minerals from other planets. Although the resource shortage situation faced by Han Yang has not been completely solved, it has been slightly alleviated.

So, after another 16 years of development, killing and recovering more than 500 billion Zerg offspring, and recovering more than 80 billion tons of high-value minerals, Han Yang finally achieved another important harvest.

In the laboratory of Base No. 1, the gravity generation and shielding equipment was finally successfully constructed.

This means that Han Yang's technology level has truly returned to level four at this moment.

Han Yang did not hesitate and immediately began to comprehensively upgrade his more than 100 bases in the entire star system, as well as the total number of factories in the bases reaching more than million.

"This time, weapons and equipment at the fourth level of civilization...can you imitate them?" (End of Chapter)