The fifth day of the Great Calamity!
Ye Xiu had almost finished building the Sanctuary.
Moreover, he had leveled up twice in the past two days.
The fallout shelter had been upgraded from 100 square meters to 400 square meters.
The double-layered iron door was upgraded to an alloy fingerprint password door.
It weighed thousands of kilograms.
Ordinary people couldn't lift it at all. They could only enter by unlocking it with their fingerprints.
As long as the door was closed.
Unless it was a terrifying beast that was dozens of meters tall.
Otherwise, it would be impossible for monsters to open it. Even missiles might not be able to blow it up.
In addition, Ye Xiu knew that it was just a few little guys at the start, so this door was very safe.
……
And it wasn't just the door that had changed.
The entire fallout shelter had undergone a qualitative upgrade.
The wall had been upgraded from 3cm to 30cm!
The foundation sank 10 meters!
After the equipment inside was upgraded, it had more functions.
For example, the living room and bedroom had been separated, and it had been upgraded to six rooms. There was a huge living room, kitchen, and bathroom.
It was a luxurious flat.
……
Of course, what made Ye Xiu most satisfied was this.
After the upgrade, the fallout shelter now had a research center.
The initial area was 100 square meters, and there was already a mature automated manufacturing system platform.
After entering, they first scanned and confirmed their identities. Only after they confirmed their identities did the doors of the research base open.
For example, making weapons.
This was what Ye Xiu needed the most right now…
……
Name: Research Base!
[Level: 0]
Researchable weapons:
[Bullets: Level 0] [Materials required: 0.05kg of pure iron!]
[Desert Eagle: Level 0!] [Materials required: 1kg of pure iron!]
Unlocked weapon:
RPK machine guns, Storm Gatling guns, plasma hand-held cannons, and so on…
Researchable military products:
[Scout drone: Level 0] [Materials required: 10kg of pure iron!] 1kg plastic! 1kg of copper! Gold: 0.001kg!
[Nuclear Energy Convertor: Level 0] [Materials required: 50kg of pure iron] Copper 2kg! Gold 0.002kg!
Unlocked technological products:
Combat drones, nuclear drones, helicopters, fighter jets, tanks, submarines, warships, satellite equipment, and so on!
Unlocked technology.
Ultra-modern technology: Teleportation Portal, Dimension Portal, Mechanical Guards, Mechs, Super Mechs, etc.
……
Ye Xiu was shocked by what he saw.
This was because all the equipment here was too comprehensive. Looking at it, it was a small military weapon manufacturing room. If word got out, it would definitely cause a sensation in the world because the scientific research products here were too advanced.
For example, the teleportation gate, the spatial gate, and so on.
Even the highest level of technology at present could not do it.
However, they were all here. Moreover, there were robot guards. It was simply futuristic technology.
……
Of course, Ye Xiu also noticed these details. Almost all raw materials had one thing, and that was pure iron!
Therefore, he wanted to obtain some defensive weapons.
However, some materials were very difficult to obtain.
……
"System, is there any way to obtain these materials?”
So after thinking about it, Ye Xiu asked the system in his heart.
Soon, the system replied,""The host can use the upgrade points to upgrade the synthesized energy crystal. It can replace all raw materials and directly provide manufacturing!”
"Oh?"
Hearing this, Ye Xiu's interest was piqued. He opened the exchange window to take a look.
He realized that one Energy Crystal required one point of Upgrade Points.
An energy crystal could be exchanged for a pistol or 50 bullets!
Not bad.
Thus, Ye Xiu decisively exchanged for two points.
Ding! Congratulations to the host for successful exchange!
As soon as he finished speaking.
Ye Xiu saw two more transparent crystals in front of him. There were colorful plasma sparks flickering inside. They looked beautiful, but he knew how much energy they contained.
Ye Xiu threw it into the processing entrance.
Following a series of soft sounds.
About twenty seconds.
Ye Xiu saw a brand new Desert Eagle and 50 bullets being delivered to him.
He picked up the pistol and felt it for a moment.
Hmm, not bad.
Ye Xiu was very satisfied. There wasn't enough space to shoot, so Ye Xiu didn't plan on using it.
Instead, he placed it here first.
He then exchanged for two energy crystals and created a small unmanned reconnaissance aircraft.
……
With the arrival of the Great Calamity, there would definitely be a lot of communication equipment failures. In order to check the outside environment, unmanned reconnaissance aircraft was an essential equipment.
Ye Xiu also discovered the advantages of this drone.
That was a brainwave chip.
As long as he placed it near his forehead and used his brainwaves to sense it, he could control it.
In addition, this drone was very agile. It was only three centimeters in size, almost comparable to a bee.
One had to know that the highest level of technology now did not shrink the drone to about 10cm. The advantage of the drone was that the smaller the better. It was not easy to be discovered, so it could be better for reconnaissance. In addition, the power source was not the commonly used electrical energy, but it was converted into nuclear power by absorbing light energy, thus achieving the ability to almost never power off.
Therefore, this would be the most useful equipment for him to explore the outside world during the Great Calamity.
……
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