Liu Xingxing rested in the Undead Castle for two days, and then left in a hurry. He wanted to return to the city ruins and continue searching for treasure. He had only explored a part of it before, and there was still a large area of ruins underground that had not been explored.
Li Ziyu did not try to persuade him to stay. Treasure hunting was Liu Xingxing's hobby, and there was no need for him to stop him.
Ever since Liu Xingxing came to the grassland, he has not been idle. He has been running around everywhere, redrawing maps, and adding mineral locations. He has not been idle at all.
After Li Ziyu and the White Tiger Queen had a secret talk, there were no more obstacles on the grassland and things developed peacefully here.
With nothing to do, Li Ziyu thought of the third technology tree that he had not studied yet - biochemical technology.
This technology tree is completely different from the other two technology trees. It is a kind of weird flesh-punk technology that looks weird, so he has never studied it.
When the castle is upgraded to level three, a third clone will appear. Li Ziyu plans to use biochemical technology to arm the third clone fortress.
Clicking on the technology tree and looking at the vast branches of biochemical technology, Li Ziyu became more and more confused. He felt that this thing seemed different from what he had imagined.
Whether it is psychic technology or mechanical technology, in the final analysis, they are all applied to the skeleton undead to enhance the skeleton undead.
But biochemical technology is different. This thing is mainly based on flesh and blood, which is very different from other technologies of skeletons and undead.
What made him even more surprised was that these technologies did not seem to exist independently, as if they had other supports and were not something that could be used by the skeleton undead alone.
After some research, Li Ziyu went to the system to check the introduction of biochemical technology with full of doubts.
After reading the introduction, Li Ziyu was dumbfounded.
It was just as he thought. Biochemical technology was indeed based on other things, and it was not even something used by the skeleton undead.
Biochemical technology is a type of transformation and enhancement technology developed jointly by the three undead races of skeleton undead, liches, and dead souls, and is used by flesh and blood undead.
Simply put, this thing is used for branch races such as zombies, stitched monsters, and ghouls.
According to the introduction in the system, after the explosion of undead technology, each branch race has developed various types of technological systems, among which psychic systems are the most numerous. After all, the basic energy of the undead is psychic energy, so they naturally have the most in-depth research on psychic energy.
However, flesh-and-blood undead creatures such as zombies, stitched monsters, and ghouls do not apply psychic power to such an in-depth level.
For these flesh-and-blood undead, spiritual energy can only be used to strengthen their bodies, but it cannot allow them to achieve further advancement.
This is also the routine operation of the flesh and blood undead. In the end, the flesh and blood undead almost all become saints in their bodies and can break all laws with one force.
With the help of the Lich, the flesh and blood undead embarked on the road of developing mechanical technology, but this road has great limitations. Once they are separated from the machinery or the machinery is damaged, their combat effectiveness will be reduced immediately.
The flesh and blood undead don't like this feeling. What they want is real power, not power obtained from the outside.
The flesh and blood undead are also a key component of the undead race. Naturally, the undead race cannot give up on them. Since they want a more stable and powerful force, they need to research a new discipline.
So, the powerful people of the three races, the Skeleton Undead, the Lich, and the Dead Souls, got together, tinkered with it, and finally developed biochemical technology.
Using the trinity of bones, magic, and psychic energy, the flesh and blood are transformed to form a new energy, thereby allowing the flesh and blood undead to evolve.
During that period, a large number of powerful men were born among the flesh and blood undead.
As for why there is a technology tree for the flesh and blood undead in Li Ziyu's system, it is naturally because the skeleton undead are one of the three creators of biochemical technology!
As the skeleton undead who participated in the creation, they naturally understand what biochemical technology is.
However, biochemical technology was created for the flesh and blood undead, and it has little effect on the improvement of the skeletal undead.
After reading the system introduction, Li Ziyu curled his lips and simply put biochemical technology behind his mind. He decided not to study this thing for the time being.
In biochemical technology, it is not that it cannot be used at all, but there are few technologies that can be used, and it is not appropriate to spend too many resources on it.
For example, there is a special building in biochemical technology called the Flesh and Blood Temple. It is a thing between the undead and a building. It is made entirely of flesh and blood, has devouring properties, and can reproduce new flesh and blood undead.
It was the technology originally designed for Stitches.
It sounds good, but to research this thing, it would consume almost the resources of a fortress, and there are also many completely useless biochemical technologies to be researched.
The loss outweighs the gain, so it's better not to consider it.
The race under Li Ziyu is the Skeleton Undead Clan, and their main focus is bones, not flesh and blood. Therefore, there is really no need for them to research biochemical technology. Unless he has too many resources and cannot use them at all, he will consider researching biochemical technology.
He still has a large amount of psychic technology and mechanical technology to research, so there is no need to waste resources on biochemical technology.
Just when Li Ziyu put down the biochemical technology, Zhang Peng sent him a message.
【Private Chat】
Conscientious Businessman: Boss, two major events have occurred in World Chat.
Don't want to take a driver's license test: Oh? What's the matter?
Conscientious Businessman: First of all, the Life Empire Alliance has announced the latest blacklist, and your name is on it.
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