[Congratulations, you've built a stone shelter!] 】

The sound of the system sounded for the third time, and a white light lit up on the ground again.

Lin Yue still didn't stop, he continued to look at the survival point mall, and without hesitation, he bought the design of the shelter with a price of 4,000 survival points!

With the sound of the all-too-familiar system, he finally managed to build a fourth shelter.

Lin Yue looked at the downward hole in front of him and walked into it along the stone steps.

Under the light of the flashlight, this huge and empty 160-square-meter shelter located underground appeared before his eyes.

The ceiling height is 4 meters, which is enough to hold more things, and Lin Yue is also very satisfied with his work.

"Isn't it common sense to build shelters at resource points?" He nodded.

As soon as he thought of that, he immediately went for it, and just because he couldn't take it with him, it didn't mean that they couldn't be saved.

And the shelter happens to be a pretty good storage spot.

This resource point, which can produce a large amount of natural sulfur ore, Lin Yue does not want anyone to get involved.

After all, the survivors who know that this thing can be combined with charcoal and saltpeter to form black powder will definitely not be a minority, and it can even be said that perhaps the vast majority of people know it.

In this survival game where you know the recipe and make it simple, you can get the system's recognition and make the blueprint, and share the sulfur ore with everyone with such a large reserve......

Wouldn't that be a long-lived one?

Although Lin Yue now has a hot weapon, Xiaobai and a lot of advantages, if a few hundred people come, as long as there is a breakthrough and throws a big guy at his shelter, then it is useless to say anything.

"The space should be enough, let's store it in first, how much can be saved."

Try to mine as many of these resources as possible, and then take advantage of this time to find out if there are any other shelter blueprints for sale, and try to mine as many resources as possible and keep them as important reserves.

Lin Yue put on the exoskeleton and returned to the ground again to start working.

The iron pickaxe kept waving, and under the effect of the exoskeleton, Lin Yue only moved mechanically, and did not feel tired, and these natural sulfur ores were also quite easy to mine.

However, the iron pickaxe was still easy to break, and Lin Yue also found it very troublesome, so he adopted another method.

"An iron pickaxe is easy to break, so after putting a diamond on it, won't it be broken?"

Among the many uses of diamonds in this world, Lin Yue only likes its hardness.

He didn't plan to use the big diamond for the time being, but the small diamond that would be opened in the safe could actually come in handy at this time.

Spending a universal upgrade blueprint and 3 small diamonds, Lin Yue successfully created what he wanted.

【You have obtained a Diamond Iron Pickaxe X1】

"That's it, keep going." The hardness of the diamond can at least ensure that the pickaxe will not break, and it can also make mining easier, Lin Yue waved and realized that this thing is really useful, it used to take four or five clicks to get a piece of ore, after setting the diamond, you can use two clicks to get a piece.

The efficiency was doubled, and Lin Yue began the boring but fruitful process of collecting natural sulfur ore.

However, Lin Yue did also consider the taste of this natural sulfur ore, and after mining them, he used some vegetables and Xing Lingfeng and Fei Yue to exchange them for a lot of wood.

These woods can be made into wooden boxes, one is about a cubic size, but it is quite suitable, Lin Yue with the mining with the production of wooden boxes, and put a large amount of natural sulfur ore into the wooden box, and when it is full, close the lid and put it into the storage space.

The storage space was full, and Lin Yue stacked them one by one into the shelter.

And as he labored, the boulders on the edge of the great lake fell one by one, and a large amount of ore was collected by him.

Although the mining process is too boring, in general, the harvest is still full of fulfillment.

In particular, large chunks of natural sulphur ore are harvested.

They represent the official arrival of the future era of black powder!

Think about it, what would it be like to have a bunch of bombs in your hand while fighting a giant creature?

Bullets are not afraid? Then incendiary bombs are waiting!

Where is the precious gasoline fuel, just throwing a black powder bomb is enough for a giant creature to drink a pot.

That is to say, but the other two things for making black powder, Lin Yue has not been able to obtain them.

Charcoal is actually easy to make, but saltpeter mines do have to be found.

Thinking like this, Lin Yue worked from noon to afternoon, and from afternoon to almost evening.

"Quack." Xiaobai was also on the side to help, but what it could do was really limited, and in the end it went with Xiao Mengyi to hunt the mutated creatures nearby.

Moreover, they also gained a lot, and finally brought in twenty-five mutated creatures with pig's heads and horns that they had seen before.

"I'm a little tired of always eating mutant mutton meat, just right, you can try the meat of this 'dire pig'. Anyway, the system says it can be eaten, so there is no problem. ”

Lin Yue finally put the corpses of these mutated creatures into the storage space, he looked at the gradually darkening sky to reconfirm the time, and finally sealed the entrance of the shelter with a stone slab, and then found a lot of soil from nearby to completely cover it up.

"Let's go to the shelter, we have to go back to the shelter quickly, there are still a lot of things to do."

While it was a good place, and less than a tenth of the natural sulphur ore had been mined, and the shelter wasn't even two-thirds full, it was too late to stay in this place all the time.

After packing up the shelter and bringing some ore, he restarted the ATV and returned the way Bai and Meng had come.

This time, he deliberately sped up a little faster, and deliberately looked for a relatively flat section of the road according to the route he came.

The faster Lin drove away, the wind whistled in his ears, and as the ATV kept galloping, he could finally see the light-colored wall in the distance.

However, as the sun set, he did not insist on driving all the time, and although the light became dim, although there were headlights, it was still much, much worse than the flat road.

Putting the car back into the storage space, Xiaobai, who had been recuperating for a long time, spread his wings and flew high and took him to the sky.

Flying with the wind, Xiao Bai was not effortless, and the speed was much faster than before, and it didn't take long for Lin Yue to return to the gate of the main refuge.

"The harvest is pretty good, but it will take some time to mine." Lin Yue opened the door, and the Xiaoice lizards also jumped up and down to greet him who was fully loaded.

But Lin Yue did not directly choose to rest.

The secret realm will be transformed into another place tonight, and if you don't go down to it while you still have time, then you may regret it.

"Xiaobai, Xiaomeng, you replenish some physical strength."

He said and looked at the other Xiaoice lizards, feeling that he could also exercise a few more and help him explore the secret realm together.

After all, the more helpers, the better.