Survival: What kind of unscrupulous businessman is this? He is obviously a kind person.

"So simple?"

A few minutes later, Su Bai looked at the treasure box outside and fell into deep thought.

You definitely can’t go out!

After all, in [Danger Perception], the E-class giant wolf from the edge of the safe zone has already rushed towards him.

After easily defeating it with the light crossbow and heavy crossbow, the D-class giant wolf makes its debut!

After killing most of them, Su Bai closed the city gate without hesitation.

He suddenly realized that this seemed to be a trap?

He has walls and gates that can easily keep monsters out!

But what about others?

If you don’t kill the beast tide, the beast tide will keep chewing and destroying the shelter...

But if you kill these low-level beasts, high-level beasts will rush over, and if you kill them again, higher-level beasts will appear... Does this mean that even the upgraded shelter is no longer safe?

"Upgrade the shelter first!"

Su Bai looked at the situation and had already accumulated enough resources.

1800E grade wood, 600E grade stone, 500E grade soil.

To upgrade to a level 3 shelter of E-level quality, you need 1000 wood, 300 stone, and 200 soil.

"upgrade!"

As resources were deducted, the entire sanctuary was shrouded in white light.

The original 4*8 large wooden house was instantly expanded into a 10*10 large shelter...

All right!

The internal space of 100 square meters is actually about the same as the commercial housing before the national survival!

But anyway.

The current shelters give people a sense of security!

The walls are made of thick logs, with additional stone pillars at the corners and inside for support. Thick wooden boards are stacked neatly to form the roof, which seems to be covered with earth for insulation...

【Sturdy Yard】: Level 3 shelter, E-level quality. Can withstand medium-sized range disasters and beast attacks (upgrading requires E-level resources).

"Ding dong!"

The friend channel suddenly sent out a reminder.

Clicking on the page, Qin Xueer's message popped up.

"Su Bai, can you sell me some E-level resources?"

"I just killed the beast too fast, and now I'm surrounded by C-level beasts!"

"I'm afraid an F-grade cabin won't last long... Maybe an E-grade cabin can survive tonight!"

"I can exchange it with you for drawings!"

"[Steam Filter], [Steam Refiner]..."

"Class B?"

Su Bai whispered.

There is only one B-level item in his hand, which is the alchemy furnace donated by Liu Yunjie in District 10086... He only got it after his talent critical strike was improved!

And what Qin Xueer holds in her hands are even more precious architectural drawings!

[Steam Filter]: B-level architectural drawings, which can build a steam-driven screening device to screen and separate different grades of material essence from basic materials. Requirements: 1 silver, 1 bronze, 20 rubber, 20D grade steel ingot, 50D grade wood, 50D grade stone.

[Steam Refiner]: B-level architectural blueprint, which can build a steam-driven refining device and extract different grades of materials from the essence of matter. Requirements: 1 silver, 1 bronze, 20 rubber, 20D grade steel ingot, 50D grade wood, 50D grade stone.

"Sifting and refining!"

Su Bai looked at the drawing information carefully, and finally his eyes fell on the words 'different grades'.

so……

Can this thing turn low-level materials into high-level materials?

Doesn't that mean... he has a chance to upgrade to a D-class shelter, or even a C-class or B-class shelter in the future?

"Done!"

Su Bai directly initiated the transaction: "There is still a little bit of E-grade wood, I will collect it for you now... But you have to add some more meat to me, at least you can take care of me for half a month!"

"no problem!"

Qin Xueer waved her dagger and forced back a C-level beast again, and then replied: "I can still hold on for 5 minutes... I'll give you the blueprint first!"

Su Bai did not reply, but directly increased the price to purchase in the private chat channel...

Qin Xueer is his best customer, bar none!

It's just an E-class shelter, so what's the harm in giving her one?

Two minutes later.

Su Bai had 5 more E-level resource cards in his hand.

E-grade wood +50.

E-grade wood +30…

E-grade wood +100…

After handing the 200 wood to Qin Xueer, Su Bai glanced at the regional channels.

There are many people who have experienced similar experiences to Qin Xueer. They all ushered in a higher-level beast wave after killing F-level monsters...

Chen Ze: "Everyone must act according to their ability! Just kill the beasts until there is only one left, otherwise it will attract higher-level beasts to attack!"

Zhang Sijie: "Brother Ze, can you please stop being an afterthought? Come up with a way to save me! There is a group of E-class beasts outside my shelter..."

Li Dalong: "Fortunately, I was smart enough to save a few, otherwise it would be over!"

Zhao Heng: "The shelter is the most important. The walls of the level 3 shelter are made of logs and can hold E-level beasts!"

Passerby A: "I don't even have enough resources for level 2 shelters. Where can I get the resources to upgrade to level 3? It's all because of you profiteers who emptied everyone's resources, otherwise..."

"Otherwise you would have died!"

Yu Jian retorted rudely: "Stop barking, the wild beast attack should end at 11 o'clock... It will take more than ten minutes at most. Those who can survive it will quickly repair the shelter!"

This sentence reminded Su Bai.

When wild beasts attack, it is obviously the easiest time to sell resources.

or……

A price reduction promotion?

After thinking for a while, Su Bai sent a message: "Friends who need stone should hurry up. From now on, 1 stone = 4 wood. Upgrade as much as possible. If you are sure, you can kill more beasts to get treasure chests!"

"If you still have blueprints and equipment that you are reluctant to sell, you can continue to mortgage them with me... But this time there is a repayment time limit, and you must return it tomorrow!"

"Boss Su is so kind!"

Many survivors burst into tears.

You should know that before the beasts attacked, 1 stone was worth 10 wood.

Su Bai cut the price in half right away, and now he is actively lowering the price?

The most important thing is... there is another mortgage purchase?

"Boss Su, I want stone!"

"1:5 I don't have enough materials, 1:4 I still have some!"

"I also want stone! But I want to mortgage the blueprints, is it okay?"

"What do you mean it's okay? When did Boss Su fail? Speak with respect!"

"The wind and snow are ruthless, but people are kind. Boss Su is really a good person!"

"..."

There is no doubt.

After Su Bai and Chen Ze came up with the "mortgage purchase" last time, they had initially won the trust of the survivors in the area.

In just over ten minutes.

Thousands of stones were either purchased or mortgaged.

Among them were the blueprints that Su Bai had been eyeing for a long time, but... he had too many choices to make at the moment, and there was no need to ruin his reputation that he had accumulated with great difficulty for a few blueprints!

11 o'clock.

The beast tide really retreated as everyone had inferred, leaving only corpses on the ground.

For Su Bai, this beast tide was not particularly dangerous.

But for others...

The number of people in the entire 9527 area has dropped directly from about 8,500 in the morning to 6,000.

Fifteen thousand died on the first day, and two thousand five died on the second day!

In two days, the loss was nearly half!

This was the result of Su Bai's countless resources, otherwise the death toll would probably be even higher!

"I tried my best!"

Su Bai opened the resource interface: "It's time to see the harvest!"

Before the beast attacked, his F-level resources were 1,000 wood, 18,000 stone, and 4,100 soil.

Now, the number of wood has skyrocketed to more than 9,000, the stone has dropped to about 10,000, and the soil has increased to more than 6,000.

Of the 8,000 stones.

Half of them were used to exchange for high-level resources, equipment, weapons, and blueprints.

The other half was exchanged for wood and soil, and some were exchanged through mortgage purchase.

And when exchanging high-level resources, Su Bai also took out a lot of wood, after all, many people's demands were to upgrade the shelter.

In addition to F-level resources, the rest of the harvest is not small.

After providing Qin Xueer with resources for the E-level shelter, Su Bai's E-level wood once again broke through the 1,000 mark, and the soil was as high as 600, but there was little E-level stone left.

In addition.

There are more than 200 pieces of D-grade wood, 150 pieces of D-grade stone, and 130 pieces of D-grade soil!

"E-grade stone is a bit insufficient!"

"It seems that I really need to go to District 10086 to buy some more!"

Su Bai sighed.

If District 9527 is his brothers and sisters, then District 10086 has been promoted to his beloved relatives and friends!

Warm reminder: The website is about to be revised, which may cause the reading progress to be lost. Please save the "Bookshelf" and "Reading Record" in time (it is recommended to take screenshots and save). We apologize for the inconvenience caused to you!