In the Giant Spirit God Design Institute, Su Huan was surrounded by a group of designers from the design institute, and was looking intently at the hologram of the architectural scheme in front of him.

In the image, it is a view of a majestic giant city perched on a mountain peak of several thousand meters.

The entire megacity was built entirely on one side of this peak.

A winding mountain road leads from the foot of the mountain to the city on the hill.

Countless buildings are located in the middle of it, from the foot of the mountain to the top of the mountain.

It is vaguely evident that these architectural styles are different.

There are ordinary high-rise buildings, schools, hospitals, shops, training dojos, government halls, factories, barracks, and towers.

However, these buildings, no matter what function they may seem, look like fortresses rather than ordinary buildings.

That's right, according to Su Huan's requirements, the designers of the Giant Spirit God Design Institute designed the entire city with the original intention of designing a military fortress and fortress at the beginning of the design.

Any building is designed to be extremely defensive.

Even ordinary homes are no exception.

This mode of construction naturally requires far more capital than ordinary buildings.

But Su Huan didn't care about spending money, what he cared about was whether the "New Black Light Castle" he built could become a fortress that would stand tall in the nest disasters again and again.

Beside Su Huan, several top designers from the Juling Design Institute were telling Su Huan about the design plan.

"In the outermost area, we have adopted the defensive design of Xingling Fort, and the defense power of Xingling Fort is far beyond that of ordinary military fortresses."

"A company that can withstand the Nightmare Seed head-on, of course, only for a short time."

"According to our design, every three Star Ling Castles form a defense module, the Triangle Star Ling Castle, the Star Ling Castle is at an angle, if it is paired with the most sophisticated weapons, it can counterattack a large number of incoming horror species, and even the attacking nightmare species can also cause not weak counterattack damage."

"The cost of a Xingling Fort is about 2.5 billion ringing thunder coins, which can station 500 soldiers, and a group of Triangular Xingling Fort costs about 10 billion, and a group of Triangular Xingling Fort not only includes the cost of 7.5 billion yuan for three groups of Xingling Castle, but also needs to carry out a series of joint module transformations to enable it to exert the strongest linkage combination ability."

"According to the best design pattern, if it is a mountain city with a capacity of 10,000 people, it is better to build a group of triangular star forts to be able to stand tall in a medium-sized disaster."

"If it's a city of 10 million people, it's better to be able to build 1,000 groups."

"However, because the cost of Xingling Fort is amazing, this is only theoretical, the Eagle's Nest Fortress that our Giant Spirit God Design has participated in the construction of is also a mountain city built by the mountain, and it also uses the defense module of the Triangular Star Ling Fort."

"However, the Eagle's Nest Fortress, which has a population of tens of millions, only built one hundred and fifty groups of three-cornered star forts in the end, which is really too expensive."

Su Huan didn't care much about what the designer on the side said at this time, his attention was already attracted by the Xingling Castle magnified by the hologram.

Xingling Fort is a special military fortress that resembles a starfish.

The parameters are all rendered on the hologram.

Each Xingling Fort is about fifty or sixty meters high, covering an area of about five thousand square meters, the whole body is black, the structure is very stable, and it looks like it has good defensive power.

Xingling Fort is composed of a special architectural structure, and its defense power far exceeds that of ordinary military facilities.

Every three Xingling Castles form a triangular structure, and as long as one side is attacked, it will immediately get the support of the other two.

The three sides work together to strike at the incoming enemy.

Looking at the power displayed by the defense module of the Triangle Star Lingbao and the description of the parameters above, Su Huan had already believed the designer's statement that it could resist the nightmare species.

The new Blacklight Castle is built on the mountain, and the city wall can be built at the foot of the mountain to defend against the incoming dangerous creatures on land, but the city on the mountain can no longer build a wall to defend against the incoming enemies in the air.

When the time comes, in the face of the enemy attacking from the air, this kind of three-cornered star fort is undoubtedly the best defensive fortress.

The scenes of the holograms kept switching, and the entire design plan of the New Black Light Castle by the Giant Spirit God Design Institute was unfolded in front of Su Huan one by one.

When the hologram finally stopped transforming and all the design plans were demonstrated, Su Huan couldn't help but sigh in his heart: "It is worthy of being the chief design institute that built the Eagle's Nest Fortress back then, this level is absolutely amazing." ”

The design of the Giant Spirit God Design Institute was excellent and far exceeded Su Huan's expectations.

"I'm happy with your design, but there's one area that needs to be changed slightly." Su Huan smiled at a group of middle-aged and elderly designers and said.

"Mr. Su, please speak?" Led by a gray-haired designer.

"The design plan for deploying a group of triangular Xingling Castles in an urban area where 10,000 people live is too conservative, I want to double this number, and at least two groups of Xingling Castles will be deployed in an urban area of 10,000 people, and I want to build Xingling Castle on this mountain and in this city."

"Huh??"

"Mr. Su, in this way, the cost of building Xingling Fort may exceed the cost of the entire city."

"Money is not an issue, tomorrow I will have someone come to you to sign the first phase of the construction contract and pay the first batch of construction and the first payment." Su Huan waved his hand and said with a big hand.

The person who signed the contract that Su Huan said was not in Thunder Fortress City.

Leaving the Giant Spirit God Design Institute, Su Huan rushed back to the Black Light Castle non-stop, and brought all the people in his mouth to the Thunder Fortress City.

Of course, during this period, Su Huan also applied for a temporary resident certificate of the Thunder Fortress City for his group.

The leader is naturally the senior brother Cao Nian.

Su Huan was about to leave to participate in the Young Cultivator Competition, so naturally he had no time or energy to deal with the matter of building a city.

He was accompanied by Xu Ke, Fuber, Lena and others, as well as senior builders and designers from Blacklight Castle, as well as some key technicians of the G73 Vault.

Under Su Huan's introduction, dozens of people in a group quickly became familiar with the work they were about to face.

And on behalf of Su Huan on the second day, he successfully contacted the Giant Spirit God Design Institute.

In addition, Su Huan personally paid the first amount of money for the construction of the city to the Giant Spirit God Design Institute.

That's 300 billion thunder coins.

These 300 billion thunder coins were exchanged by Su Huan from the Red Devil Dojo last time, and they originally wanted to change houses but did not come in handy, but now they are used to pay for the first payment.

Of course, these 300 billion yuan is just a drop in the bucket for the construction of the entire new Black Light Castle.

It's just a deposit.

After paying the deposit, according to the signed contract, the Giant Spirit God Design Institute will form the first batch of construction teams to go to the Stacked Peaks on the edge of the Gray Wilderness Wasteland within ten working days of signing the contract.

Of course, the master of the Black Light Castle will also dispatch forces to expel the dangerous creatures of the Stacked Peak, and even Su Huan will personally take action after the arrival of the construction team.

During this time, the senior brother Cao Nian, Xu Ke, Lena and others will also stay in the Thunder Fortress City to understand and familiarize themselves with the city construction plan.

It is worth mentioning that under Su Huan's training, Lena has also become a professional-level master from an ordinary person in the past.

Although the strength is not ranked in the Black Light Castle, it can be regarded as a master on the road to the master.

This also made Su Huan quite pleased.

Su Huan has a lot of trust in Lena's ability, all she lacks is strength.