After checking the two instruments, he earned the blue crystal coins into the other party's account, 200,000 blue crystal coins, he didn't have the slightest heartache, these blue crystal coins were used up, just earn them again, he didn't have the habit of saving money.

Fortunately, when he came, he rented a transport aircraft, otherwise, these two instruments would not be easy to transport back.

Finding a car and delivering the two instruments to the transport aircraft, he was ready to take a good look around the chaotic city, each with its own characteristics, and he hoped to find some 'treasures' here.

With this kind of thought, Zhou Yun came to a trading market, the trading market here is equivalent to the black market in the floating city, there are many prohibited items in it, but this kind of transaction is legal in the city of chaos, because in the city of chaos, the biggest source of income is the black industry.

After just walking around for a while, Zhou Yun had some gains, his harvest was naturally some instruments, or rare elements, and most importantly, he harvested a small piece of black crystal, which is a strategic resource, even if it is the black market in the floating city, he does not dare to sell this kind of super forbidden item, and only in an area like the city of chaos, it will be like this.

This small piece of black crystal cost him 300,000 blue crystal coins, plus other things, his family foundation was almost exhausted, but this time the goal has been achieved, and the next step is to start making that kind of small missile.

He still doesn't know if there is any difference between the raw materials of this world and the raw materials of the earth star, if there is a difference, he does not dare to make it rashly, and only after fully understanding it can he start it, among the two instruments he bought, there is an instrument for studying these materials.

At this time, he had no place to stay, so he could only rent a basement as his first base.

However, he also knows that this is not a long-term solution, this is only the beginning of him, definitely not the end.

This world made him see the hope of breaking through the bottleneck of science and technology, that kind of black crystal, is the key, the next development direction, is the development of energy weapons, he has already embarked on this road before, the Ark Reactor, can only be regarded as the initial development of energy weapons.

The Ark Reactor cannot support the energy needed for inter-universe navigation at all, and the current Earth Star has developed to the extreme, and the next development is to focus on the universe.

He knew that the Zetarians had entered the interstellar age, and that kind of huge space battleship was a terrifying war machine that could continuously transport troops, and when he went back, he would have to build a few space warships.

Not only can he deter Millican, but after defeating the Zetaris, he can also have more confidence to benefit himself.

Throwing off the thoughts in his heart, he knew that he was thinking too far, he had come to this world, and it was not clear when he would be able to go back, in case he missed the Zetari invasion perfectly, no matter how much he thought about it now, it would be completely useless.

In this world, the only thing that can be called an acquaintance is Yueyu, the Moon Butterfly clan who was saved by him, but, this kind of small thing, he doesn't want to trouble the other party, in this kind of unfamiliar place, if you want to go to a place, you can only use navigation.

Fortunately, there are things similar to navigation in this world, otherwise, according to his level of road idiocy, he will definitely not be able to find the direction.

After some difficult searching, he finally found a place to rent a house, this time renting a house, he was looking for a relatively quiet place.

The girl of the Yuedie clan who rented and sold the house, according to Zhou Yun's requirements, found a house that met his requirements, and after Zhou Yun saw it, he was very satisfied and paid the rent.

In the following time, he got the purchased equipment into the house, and then remodeled it, more like a laboratory, and for a period of time in the future, this will be his temporary residence, and it will also be the place where he develops weapons.

Seeing the completed laboratory, Zhou Yun showed a satisfied look, and now, he had a feeling of returning to the earth star.

Everything is ready, only Dongfeng is owed, on a website similar to Taobao and JD.com, he buys the materials he needs, and the rest of the time is to wait for the delivery to his door.

As for why this method was not used before, it was because the probability of being robbed was too high, and then this organization never set up a branch in the city of chaos, the city of chaos, it was too chaotic.

An hour later, there was a knock on the door, and when the door was opened, he saw an alien creature in uniform, carrying a large package, which was the raw material he had purchased.

After signing, Zhou Yun began to be busy, this is the first experiment in this world, which is of great commemorative significance.

After the experiment began, Zhou Yun found a problem, the materials of this world are different from the earth and stars, there is an extra element in the materials, and he doesn't know what will happen in the process of remanufacturing.

In order not to have an accident, he can only temporarily give up the plan to immediately create that kind of small missile, otherwise, blowing up the laboratory will definitely attract the law enforcers of this world, he doesn't want to be targeted by the high-level of the Moon Butterfly Clan, and secretly developing is the most correct thing.

After research, he found that this element could be perfectly integrated with the raw materials used to make small missiles to enhance the power of weapons, and when he found this situation, Zhou Yun's eyes showed surprise.

He is a little dissatisfied with the power of small missiles now, but he didn't expect that he would send a pillow when he fell asleep, as long as he can enhance the power of the weapon, no matter how much it is enhanced, he is looking forward to it.

He found that there was no problem with this element, so he had no worries and began to make weapons.

In the process of production, Zhou Yun did not dare to be careless, although he was now wearing a nano suit, even if it exploded during the experiment, it would not be life-threatening, but this place must be destroyed, which is a situation he does not want to see.

As time passed, the laboratory was very quiet, only Zhou Yun was doing experiments with peace of mind, and finally, he looked at the things in his hand and breathed a sigh of relief in his heart.

This thing is his first work in this world, and it is monumental.

This is what he is in this world

Now that it has been successfully developed, the next step is to test the power, take the meteorite battle suit, and leave the floating city, before Yueyu has taken him to apply for a temporary residence permit, so he can enter and leave the floating city freely.

Coming to an open place, he observed the surrounding situation, there was no sign of biological activity for nearly a hundred kilometers around, and he could rest assured of the power of the experimental weapon.

After the incident, with a bang, a hill in front of him directly turned into gravel, and seeing this power, Zhou Yun's face was full of surprise.