At this moment, the large wooden box has been simply split by the fire axe, but the contents inside are also very simple.

That's not a treasure chest.

"It's ...... Blueprints? ”

Lin Yue stretched out his hand and stretched out his hand towards the thing that shone with a light blue light.

[Congratulations, you have obtained the Everything Replica Coupon X1!] 】

"Everything, copy coupons?" Lin Yue took a deep breath, This is ...... What a fetish!

[Everything Replica Coupon: You can copy anything that has been created by survivors, obtained by opening treasure chests, and searched in secret realms and underground ruins, except for blueprints, shelters, and various creatures. 】

After Lin Yue looked at the description of this system, he confirmed that this was a divine object!

"Anything can be copied except blueprints and shelters and various creatures?" Lin Yue took out this copy coupon of all things that was not too different from the design drawing, and stroked it gently.

Without a doubt, this should be the most valuable thing that has been prescribed from the beginning to the present, and there is no one!

"So, what to copy?"

Lin Yue was quite excited now. Come to think of it, this is something that can break the rules, something that can be "copied freely", which is far beyond the technology that the earth originally had.

After rummaging in the storage space, Lin Yue came to the warehouse in the basement again, and inspected the things he had obtained one by one, and the excitement in his heart gradually calmed down.

Standing on the edge of the shelves in the warehouse, Lin Yue shook his head.

"What am I doing in such a hurry? This kind of good thing should be kept until you come across something worth copying instantly. ”

Lin Yue finally calmed down completely.

He knows exactly how good this thing is, and if he uses it rashly, if he can't open it again, it's too late to regret it.

Good steel should be used on the cutting edge.

After receiving the copy coupon of everything into the storage space, Lin Yue walked out of the warehouse and looked at the steel rails placed in the aisle that had not yet had time to be processed.

He decided to deal with the matter in front of him first.

Moving the workbench out, putting on the exoskeleton and lifting a steel rail, Lin Yue quickly got what he wanted.

【You have obtained Manganese Steel Block X2】

Manganese steel, alloy!

Lin Yue knows some knowledge about manganese steel, and the buckets of bulldozers and excavators are made of this thing, which is extremely wear-resistant.

The steel rails on the ground disappeared, and under the decomposition of the workbench, they turned into shining metal blocks on the ground, and the number of manganese steel alloys obtained by Lin Yue gradually increased!

When the last rail disappeared, Lin Yue found that the total number of manganese steel alloys this time even came directly to the high number of 64 pieces!

He had always relied on other survivors, and needed to exchange a lot of vegetables, fruits, or other things for them, but in the end, he didn't get much, and they were mainly duralumin alloys and various copper alloys, which were not suitable as the materials for the "alloy refuge" he had been pursuing.

Moreover, after opening higher-level treasure chests, these alloys have been used for various purposes, and they consume a lot.

Now that he has obtained so much manganese steel, Lin Yue feels that he seems to be able to build this alloy shelter that has always been unable to be made for various reasons!

"Manganese alloy should be worse than titanium alloy, but in this different world, it seems to be more suitable, right?"

Lin Yue returned to the ground, Xiaobai was waiting for him outside, and the other Xiaoice lizards were chasing and playing in the yard.

"Xiaobai, let the Xiaoice lizards gather first, we are going to build a new shelter!"

"Quack? Quack? Xiao Bai looked up at the huge shelter next to him, and thought he had heard something wrong.

But the owner always seemed to do what he said, and he quickly summoned the Xiaoice lizards over to prevent them from getting in the way.

Lin Yue took out the design and took a deep breath.

Finally, it's finally going to be built, and this is the "ultimate" refuge!

【Alloy Shelter】

[Area: 60㎡]

[Requirements: Alloy (unlimited type) X60, wood X10, stone X10, iron block X30, glass (unlimited type) 2 pieces]

The alloy is manganese steel, the quantity is just enough, and as for the other materials that are needed, Lin Yue also includes the storage space in turn.

Once the materials are gathered, all that remains is to choose where to place them.

[You have used the Alloy Shelter blueprint, please select the construction category]

[1.Built separately, the shelter can be placed above ground or underground in any terrain]

[2.Combined construction, can be integrated with existing shelters, and the evacuation area can be expanded]

"Choose to build it alone."

[Please choose whether to place it above ground or underground.] 】

"Underground."

Although it is an alloy refuge, it is comparatively much more dangerous above ground than underground.

After the catastrophe of the earthquake passed, the only drawback of the underground shelter was overcome.

If you choose the ground, then this lightning strike is indeed a problem, this metal guy, Lin Yue doesn't dare to put it on the ground.

The iron shelter he made before, Lin Yue also handled it like this, and there was no way to put it on it.

However, it is true that the underground shelter is much better than the above-ground shelter, and even most disasters can be survived under the condition that there are no earthquakes and the sealing is excellent.

If he had this at the time of the earthquake, he wouldn't have had to build a triangular wall.

【Please select a construction site】

As the sound of the system sounded again, Lin Yue found that a green rectangular light curtain appeared.

Where......

Lin Yue didn't want this alloy shelter to merge with the main shelter, nor did he want to be too far away.

Blending together is a real solution, but it doesn't make much sense, and if it's too far away, if something more difficult happens, then movement is a problem.

So, what about the right location......

He looked at the exit of one of the emergency passages in the main vault and took notes.

[Congratulations, you've built the Alloy Vault!] 】

As a white light lit up, a downward hole appeared on the ground in front of Lin Yue.

However, unlike the previous stone shelter with gasoline, the upper entrance to this alloy vault is an airtight enclosed entrance with metal handles that need to be opened to the left and right.

After opening the door, Lin Yue quickly descended from a metal ladder nearly three meters high and stepped into a rectangular space decorated with stone and wood.

"Alloy Shelter......" he shone around with his flashlight, tapping his fingers lightly on the walls.

It's a 60-square-metre space that's spacious, with a sturdy metal door leading to the outside.

Lin Yue opened the door, and outside was one of the deep emergency passages in the main shelter.

Reaching the emergency passage, he walked forward, pushed the door open and entered the basement of the main vault, returning to the opposite direction again, eventually poking his head out at the exit between the first and second walls.

The so-called, cunning rabbit three holes.

Isn't that what it is?