Xiao Yu has been fighting against this civilization for a total of several years. Now, this protracted war is finally coming to an end.

Exterminating a civilization sounds like a cruel thing, but it is not as cruel as being exterminated. This is a confrontation between civilizations, there is no morality, no mercy, only cold killing.

"Infrasonic weapons, activate." Xiao Yu gave this order without any emotion.

Immediately, low-frequency mechanical longitudinal waves began to wreak havoc on the planet. These sound waves will be able to penetrate the building, killing the creatures inside the building. At this stage, it is almost impossible to defend against unless a tight protective layer is constructed with special materials that absorb sound waves. But Xiao Yu didn't think that in this case, they still had Liliang do it.

Xiao Yu has calculated that if the high-power infrasonic weapon continues to fire for twenty minutes, it will have a serious impact on the lizardman, causing its internal organs to rupture, and in thirty minutes, it will be able to kill the creatures directly exposed to the influence of the infrasonic wave, and after an hour, the creatures hiding within five meters underground or in the building bunker will not be spared.

The satellites orbiting this planet were watching this place with cold instruments, and kept transmitting the signals they observed to Xiao Yu.

Twenty minutes have passed.

Xiao Yu saw that in the center of the city, a huge square, the ground suddenly opened, and dozens of small spaceships staggered and flew up.

Xiao Yu sneered: "Are the drivers all dead?" The lizardmen piloting these spaceships, are they all newbies? ”

Xiao Yu mercilessly manipulated a hundred village-level spaceships to approach, and launched a spaceship war in near-earth space with the other party, losing the suppression of primary energy weapons, Xiao Yu's spaceship once again narrowed the gap with the other party. Fifty minutes later, the opposing ship was completely destroyed.

"These lizardmen still have the remnants of Liliang. Luckily, I was able to kill their flagships ahead of schedule, otherwise, I would have been a little troublesome in the face of flagships that were determined to die. Xiao Yu thought a little happily.

Thirty minutes later, a large number of lizardmen began to appear in the city, almost a thousand in total. The two claws in the middle of the body in the lizardmen's hands were raised high, and they rushed out with a variety of weapons to confront the robots.

Xiao Yu manipulated the village-level spaceship to the sky above this area, increasing the power of the infrasonic weapon. Immediately, the lizardmen began to roll on the ground in pain, being mercilessly slaughtered by the robot formation.

"If you had known about this outcome from the beginning, would you have laid a hydrogen bomb trap for me in an attempt to destroy me?" Xiao Yu thought coldly, without the slightest pity in his heart.

"It's still a little strange, and I'm still not sure what they did to me for what purpose. When collecting information for a while, we should pay special attention to this aspect. Xiao Yu thought.

This is Xiao Yu's first alien civilization. And Xiao Yu is not sure if he is an alien civilization that the lizardmen have encountered for the first time. In other words, it is very likely that these lizardmen have encountered alien civilizations more than once, and have learned some information that Xiao Yu does not know, and it is very likely that it is because of this information that they preemptively attack Xiao Yu.

Since the more than 1,000 lizardmen were slaughtered, there have been no large-scale lizardmen, and occasionally scattered lizardmen will run out of the building with a frantic roar, and then be killed by the Gauss pistol in the robot's hand.

In order to be safe, Xiao Yu used the infrasonic weapon for two hours. After making sure that there were no more robots alive, Xiao Yu began a large-scale landing activity.

Among the total of 281 spaceships, Xiao Yu only left 30 small spaceships to escort them, and the remaining 250 spaceships, including 200 spaceships, carried nearly 40,000 robots and landed in the city, and the remaining 50 spaceships carried 10,000 robots to the giant building that was hundreds of thousands of meters high.

This megastructure, Xiao Yu speculated, should be the engine that drives the movement of the planet.

Forty thousand robots landed in the city and launched a large-scale search operation. Xiao Yu will not let go of anything valuable.

Inside a building, Xiao Yu saw the other party's computer system for the first time.

Xiao Yu already knows that the other party's computing module uses the same photon calculation as his own, which means that he can extract the other party's information, as long as he cracks its encryption system and translates the other party's record text, he can read it without hindrance.

In addition to electronic data, Xiao Yu also tried his best to collect all the data about this civilization, such as their architectural concepts, social models, various technologies, and so on.

With the increasing amount of data collected by the satellite detection system and the information collected by Xiao Yu, Xiao Yu has a preliminary understanding of this planet.

This planet has obvious traces of being transformed. Xiao Yu became more and more sure of his guess, that is, this civilization was not an indigenous civilization on this planet, but an immigrant from behind.

At the same time, Xiao Yu also made a detailed determination of the geological composition of this planet, looking at the results, Xiao Yu couldn't help but sigh: "It's really a barren planet." ”

The elements that make up the planet's crust are very simple, and most of them are concentrated in the light elements, which is in stark contrast to the large number of heavy elements that make up its core.

However, a large number of heavy elements are concentrated in the core of the planet, making it impossible to mine, so it is not an exaggeration to say that this planet is barren.

Xiao Yu speculated that this may be a planet orbiting a first-generation star, so this planet was mostly composed of light elements at first, and then, this planet may have collided with another planet orbiting a second-generation or even third-generation star, and after the fusion of the two planets, a series of extremely complex geological changes occurred, forming a strange structure in which its core is heavy elements and the earth's crust is light elements.

The so-called generation of stars are those that formed shortly after the Big Bang, and the content of heavy elements in the generation of star systems is extremely low. Stars reformed from cosmic dust after supernova explosions are called second-generation stars, and the content of heavy elements in the second-generation star system is much higher, and the sun is a second-generation star.

The large-scale data collection operation lasted for a month, and within this month, Xiao Yu collected a large number of data storage tools similar to computer hard disks on the earth, and also collected a large amount of information about the other party's technology through anatomical analysis.

Immediately, Xiao Yu launched a declassification operation. It is not difficult to translate the other party's text, with a large amount of textual information, by analyzing the number of times a character appears in the document, and its position in the sentence, etc., Xiao Yu can roughly determine the logical relationship between this character and the rest of the characters, determine whether it is the subject or the predicate or the object, and then after further analysis, you can determine the meaning of this character.

But before translating the text, there was another difficulty in front of Xiao Yu, that is, the other party's data encryption system.

A civilized data encryption method has a great effect on the social form and living habits of this civilization, Xiao Yu does not understand the other party's information, so it will naturally be difficult to crack. However, Xiao Yu has this confidence, and he will definitely crack it out.

In addition to the declassification operation, Xiao Yu also received various mining bases, various equipment processing plants and other facilities that the other party had no time to destroy. Even, Xiao Yu found about fifty half-made starships in a hidden base, which made Xiao Yu very happy. Xiao Yu intends to take over the lizardmen's work and continue to build these ships.

"If you don't search this planet ruthlessly, how can you solve the hatred in my heart?" Xiao Yu remembered the hundreds of spaceships he had lost, and his heart became more and more hateful.

A large number of useless buildings, factories and other facilities were demolished by Xiao Yu, and then, all the things that could be recycled were moved back to his warehouse, and the useless things were abandoned everywhere. Xiao Yu is fishing at the bottom of his rope, but he will have nothing to do with this pond in the future, so before leaving, he will naturally catch as many fish as he can, and any sustainable development is nonsense.

The useful buildings and factories were transformed by Xiao Yu to make them more suitable for his own habits. Xiao Yu plans to build at least a thousand more spaceships on this planet before he is willing to leave.

Time slipped away in a hurry in Xiao Yu's busyness, and within this year's time, Xiao Yu transformed the lizardman's two spaceship manufacturing factories, and with the arrival of a large number of raw materials, Xiao Yu has been building new spaceships. However, now Xiao Yu is building small spaceships, and large spaceships are not built.

Because Xiao Yu wanted to wait for the energy weapon Jishu to be analyzed before building it together, he would directly upgrade the large spaceship to an energy weapon system. However, Xiao Yu also made some preliminary preparations, during this time, Xiao Yu has repaired two large interstellar docks on the planet's orbit, and only after Jishu and resources are in place, he can immediately start building county-level spaceships.

In the midst of his busy work, Xiao Yu suddenly received a signal.

"What? The most core encrypted data, decrypted out of a part? Xiao Yu was shocked and immediately began to read.

The declassified information is only one sentence.

"Since receiving the warning that our planet was about to explode, it took us twenty years to build a large spaceship that could carry 300,000 people, and before the catastrophe struck, we escaped to an outer planet far from the stars......"

"Planet...... Explode? Xiao Yu stayed there.

――――――――――

Well, the two watches have been delivered today. If, readers, adults, look at this book and still have a little bit of eye-catching, can you give some recommendations, collections, and rewards?