Due to the above reasons, Ye Bing finally chose to leave Li Shuyue's stay, but he promised to come to visit at noon the next day, and Li Shuyue had to agree.

- This night, when Ye Bing returned to his small dilapidated house and impatiently established communication with the base, he immediately received a news that he didn't expect!

"Commander, important news, we have reached the required number of points, as long as we have enough energy, we can upgrade the main base to the next level at any time!"

As soon as the light curtain popped open, Natasha's voice came out immediately, and she was caught off guard, almost startling Ye Bing again!

This time, however, he did not have time to pay attention to those hours, but exclaimed excitedly:

"Damn, cool! Natasha, hurry up and jump to the relevant interface! I'm going to take a look! ”

The screen quickly jumps to the main base properties, and its content has been changed to the following situation:

【Doom Base】

Base Level: LV1

Health: 500

Credits: 30

Energy limit: 7/50

Handling limit: 10/10

Digitization range: 10 meters

Energy required to level up: 45 energy cost

Upgrade time: 3 hours

Ye Bing squinted his eyes and found that the attribute of points had grown to 30 points at some point, thinking that it was due to the fact that he had created a lot of reconnaissance robots in the later stage. Although the cost of the Scout Robot is small, each one of them adds 1 point to the base, which is the same as the effect of a LV1 beam tower, but the number of beam towers is limited, but the Scout Robot does not, which allows the base to be upgraded quickly.

Thinking of this, Ye Bing's brain suddenly moved, and he thought of an idea. Since the creation of a scout robot can increase the points so quickly, then in the future, if there is a surplus energy, it will be used to explode the scout robot, and when it reaches the upper limit of control, it will be sent out to die, and the price is very low anyway. In this case, wouldn't it be possible to achieve the purpose of rapid upgrade?

However, this idea only swirled in his mind for a while, and then he took the initiative to erase it, for no other reason, it was too unrealistic. To put it simply, it takes 30 energy to upgrade a base from LV1 to LV2, so going from LV2 to LV3 should be much more than that. Assuming that you need 100 points, you need to build 100 scout robots, and you need to waste a total of 100 points of energy, which is too much to lose, and it is better to use the energy in a really valuable place, even if the speed of accumulating points is not as fast as the exploding scout robot, but at least the cost performance is much higher.

And don't forget, upgrading your base isn't just about upgrading your base, it's about unlocking buildings and technologies! If in the end, the base level is quite high, but none of the buildings that should be built are made, then the cart before the horse.

However, if one day, Ye Bing finds that the things that should be built in the base are almost built, the technologies that should be unlocked have been unlocked, and the energy of the base is also surplus, but when the upgrade points of the main base are not enough, maybe you can still try this method.

Beyond the point of integration, Ye Bing continued to look down, and sure enough, he saw two extra attributes, which were the energy and time required for upgrading. Compared to other buildings, the energy and time required to upgrade the base are obviously exaggerated, but it is still within the range he can bear, as long as the base continues to operate smoothly, it will take about another four days to get the energy needed for the upgrade, and then the main base can be upgraded to LV2!

Haha, I'm really looking forward to it, I don't know what kind of technology and buildings will be brought to the main base of LV2? I hope that at least there are a few more powerful defense facilities, otherwise if you only rely on those two beam towers, you will definitely not be able to deal with the zombie hordes after the second mutation.

After that, Ye Bing asked Natasha about the development of the base for a day, and found that as he expected, the base was still running well without him, and things like killing zombies to recover energy were not delayed at all, but collected 1 more energy than before, which made him not know whether to cry or laugh......

After turning off the watch, Ye Bing went back to bed and went to sleep. In his own small bed, he slept very soundly all night. Even though there was no heating, the indoor temperature dropped to minus 10 degrees Celsius, but I didn't feel cold at all because I was wearing tights.

In the absence of a base wake-up service, Ye Bing slept until almost ten o'clock for the first time in nearly ten days. However, the winter morning light shines through the glass, and the feeling of sprinkling on the body is still quite comfortable, and there is a fragrance of nature itself. Then, he washed up with the mineral water he was carrying in his backpack, refreshed himself, and began to eat breakfast.

The so-called breakfast was just some ordinary bread and sausages, but eating it in his mouth still made Ye Bing feel moved.

Alas, in the end, it's still ordinary food! Think about how beautiful it feels to be when you eat every morning and worry about whether the nutrients in your hands are extracted from excrement or insects!

After eating, seeing that the time was almost up, Ji Xiaoxiao's family should also get up and pack up, so he sorted out his clothes and went out.

The distance between the two families is not far away, but the relationship between the front building and the back building, but he has just walked out not far when he finds that something is wrong!

It turned out that just below the unit building where the Ji family lived, for some reason, a large group of people were attracted and the entrance of the building was blocked tightly. Because of the noisy voices, Ye Bing couldn't hear what they were talking about, but it probably didn't have much to do with him, so he continued to walk over there.

However, as he got closer to the crowd, some key words crept into his ears. He took a closer look and found that the four words they mentioned the most were "Ji family", "white-eyed wolf", "escape" and "Ye Bing"!

Hearing this, Ye Bing immediately stopped, and an ominous premonition couldn't help but rush to his heart!

He was about to hide away and wait and see the situation, but he didn't expect that before he could turn around, he was seen by the middle-aged woman in front of him!

"Hey, you are ......" The middle-aged woman was stunned for two seconds, as if she was retrieving Ye Bing's identity in her mind. The latter didn't have time to think about it anymore, and turned around silently to leave.

However, coincidentally, the woman suddenly remembered Ye Bing's name at this time!

"Ahh Ye Bing, you are Ye Bing! ”

The woman howled like a wolf, and then without saying a word, she pulled directly towards Ye Bing's clothes!

At this time, although Ye Bing's body had already turned most of the time, out of sensitivity to the attack behind him, he actually noticed the woman's actions as soon as she stretched out her hand, and then his eyes flashed, and he turned around to block in one go, and at the same time the other hand directly grabbed the woman's wrist that was bounced off, and twisted it down suddenly, only to hear the sound of "rattle", and it was mercilessly breaking her joints out of place!