[Scan completed. . . 】

[Your current resources are not enough to build the underground airport at one time, so we will automatically switch to phased construction for you. Number of installments: 5]

[The first phase of resources has been replenished. The second phase of resources has been replenished. The third phase resources are insufficient. . . 】

[Phase 1 and 2 of the project under construction]

[Detected that you are still in the novice stage]

[Detected that you are number one on the killing list]

[After comprehensive consideration, the first construction speed has been accelerated! The current construction time remaining is 4 minutes and 59 seconds]

As these system prompts popped up, Zhao Feng and Li Ruolan were sent to the surface together.

The two stood in the snow and looked at each other, their eyes full of confusion.

Being transported to the surface by an unreliable system, Ruolan didn't wait for him to ask.

The ground began to shake on a large scale, and the previously built wooden houses on the ground turned into ruins after a tremor.

Ruolan was so frightened by this scene that she hugged Zhao Feng and asked in a trembling voice:

"Is it an earthquake?"

Zhao Baobao felt embarrassed, put his arm around her waist, shook his head and replied:

"Well, it's hard to believe it. I triggered the hidden option of building a base. The current situation should be regarded as a reward. We can go in in another 5 minutes."

As if to confirm what he said, the ground shook more and more violently.

After 5 minutes, the snow layer split into two from the middle and slowly opened to both sides.

Just like a rocket silo being opened, the base itself hidden underground was gradually revealed.

When it was opened to the end, the wellhead just came to a stop at their feet.

According to visual inspection, the diameter of this thing was at least 50 meters. He had a bad feeling in his heart, and he suspected that he might have been tricked.

He has accumulated a lot of resources, but it is a bit unscientific to launch such a big battle.

Looking down, Zhao Feng was stunned.

‘Is this an airport I’m building, or a tmd nuclear bomb silo? ! Going so deep? ! ’

Can it not be too deep? At this glance, he didn't even see the end.

Before he could finish his rant, a platform slowly rose up from the "launch silo" in front of him, blocking the entrance of the well.

He scratched his head and walked up with Ruolan.

As soon as he went up, Zhao Feng heard a series of electronic prompts.

"Airport Commander detected, binding..."

"DNA information has been bound..."

"The brainwave information has been bound..."

"The pupils and fingerprints have been bound..."

"Welcome home, Commander!"

Immediately afterwards, the entire base began its welcoming process.

With a slight vibration, the platform began to fall downwards.

At the same time, the giant steel gate overhead was slowly closing.

The descending speed of the platform seemed slow but was actually fast. It dropped more than 10 meters in a few seconds.

"About to pass the B1 floor, living area"

As new information popped up, in order to allow Zhao Feng to visit the airport more carefully, the elevator's descent speed slowed down a lot.

The rooms on this floor are all embedded in the alloy walls around the central "silo".

There are rooms every 5 meters or so, and there are a total of 30 rooms in the living area.

There is a 3-meter-wide alloy aisle outside the room, which serves as a corridor connecting various rooms.

Sensing the commander's arrival, the doors to all rooms opened automatically, revealing the decoration inside.

If you look carefully, you can see that there are some 4-person rooms similar to those in a university dormitory.

When Zhao Feng stopped focusing on this level, the descending speed of the elevator gradually returned to normal.

In another 10 seconds or so, we dropped about 200 meters.

Staring at the same metal channels around him, Zhao Feng was about to yawn out of boredom.

A new beep sounded in my ears.

"About to pass the B4 floor, production area"

'Um? B2 and B3 were eaten? ’

He frowned, putting his doubts in his mind first, and then raised his eyes to look at the so-called production area.

The layout of this floor is almost the same as that of B1, and the buildings are also surrounded by this central "silo".

It’s just that there are fewer rooms, only the mining area and the refining area.

As the two 20-meter-wide steel gates opened, Zhao Feng could see clearly.

The so-called mining area is really a large hole dug dozens of meters deep.

In other words, Zhao Feng could see the halo of minerals, but if it were anyone else, he would have thought the system was deceiving.

As for the other refining area, as expected, there are two [Mineral Refining Workshops] he had built before.

Nodding, Zhao Feng thought it was pretty good. Looking at the spacious space inside, at least 10 refining workshops could be accommodated.

After the visit, the platform continues to descend.

Starting from the B4 floor and going down, the surrounding walls are no longer covered with alloy and are all original rock layers.

Moreover, the descending speed of the platform continued to increase from this level, and soon reached a depth of about 1,000 meters.

"About to arrive at B6 floor, Airport Command"

‘Even the B5 floor was eaten. . ’

Along with the prompt sound, the platform's descent speed slowly slowed down, and finally stopped completely.

Walk off the lifting platform and enter the so-called airport command center.

What comes into view is like an aviation base commonly seen in movies.

There is a huge projection screen in the middle, surrounded by rows of consoles.

It's just that there is no equipment installed on the console at this time, only an empty shell.

At the same time, new system information popped up in front of his eyes.

[Underground airport reception completed]

[Resources required for the third phase of construction: alloy x1342, iron x611, cable x622, copper x57, fiber material x161, geothermal power station x5 (the same energy supply is required), robot factory x2]

(The first phase is the construction of the main structure, the second phase is the construction of living areas and production areas, and the third phase is the construction of structural stability. Please replenish resources as soon as possible.)

‘Well, even if we finish the third issue as co-authors, we still can’t complete this part? ’

‘No, where is my power plant? Where did the geothermal power station go? ’

With doubts, she pulled Ruolan up and walked back to the lifting platform.

Standing on the platform again seems to be because the acceptance process has been completed once.

When he boarded the platform, the corresponding [Underground Airport] HUD menu was displayed in front of him.

According to the information displayed on the HUD, this airport has nine floors of space.

However, among the nine floors currently built, only the living area on the B1 floor, the commander's rest area on the B2 floor, the warehouse on the B3 floor, the B4 production area and the B8 energy area.

Doesn’t it look pretty good?

But the problem is that these areas are either those that he has done before, or they are some areas that are insignificant to improve comfort. They can be used seriously, and there are no places to improve Zhao Feng's strength.

As for the so-called airport command center on the B6 floor, it is nothing more than a shell now.

To him, the entire [Underground Airport] is just a piece of cake!

Browsing the information about the base in front of him, Zhao Feng's face became darker and darker as he looked at it, feeling that he was completely at a loss.

Now all his supplies are tied up in this base.

I had previously thought about building a robot factory, but my dream of using robots to replace low-level repetitive labor was dashed on the spot.

. . .

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