Doomsday: Supplies Containment, Hundred Times Critical Strike

As soon as you go out.

They were frightened by the sight in front of them.

Good guy!

The 30 yuan alloy steel plate appeared in front of their eyes instantly.

Without knowing it, they thought they had entered some underground air-raid shelter.

"Brother Yuan, this...is all done by you?"

Li Bin knocked on the steel plate and asked in disbelief.

Lu Yuan smiled and nodded.

This made Li Bin even more surprised in an instant.

"Good guy!"

"The stronghold has such defensive power, even if the zombie king comes, he has to cry and leave."

"Brother Yuan, you are so awesome!"

talking.

Li Bin gave Lu Yuan a thumbs up.

Qiao Ya and Xu Moyao also looked at him in shock.

They can't think of anything.

In just one morning, Lu Yuan strengthened the defense of the stronghold so much.

To know.

Just these alloy steel plates alone weigh at least a thousand kilograms.

It was unexpectedly arranged properly by Lu Yuan without any effort.

Everyone couldn't help but admire Lu Yuan's strength again.

Seeing the astonishment on everyone's faces, Lu Yuan smiled faintly.

What he is doing now is only physical defense for the stronghold, although it can resist some low-level or even high-level zombies.

But when you meet a smart guy like a smart zombie.

It is estimated that the effect is not great.

At the same time, the sound of the system rang in his ears.

【Ding! 】

[Congratulations to the host for initially completing the stronghold physical defense system! 】

[Trigger a new task: upgrade the stronghold to a doomsday fortress! 】

[Time: 8 days, 15 hours and 53 minutes]

Hearing the system's voice, Lu Yuan couldn't help frowning slightly.

"Upgrade the stronghold to a doomsday fortress?"

"What do you mean?"

The system also detected Lu Yuan's doubts immediately, and it rang in his ears again.

[The doomsday fortress is the most powerful stronghold in the doomsday, which can resist all natural disasters of the doomsday, including zombie attacks. 】

[Survivors in the doomsday fortress can increase their ability level according to the level of the fortress. 】

[From low to high, the level of the fortress can be divided into six levels: black iron, bronze, silver, gold, diamond, and king. 】

Listening to the system's explanation, Lu Yuan gradually understood.

So he asked softly in his heart again:

"How to upgrade the fort?"

He knew that upgrading the fort would definitely require some supplies.

If it's just crystallization, then he doesn't have to worry.

Because the amount of crystals accumulated in his warehouse was astonishing.

But he vaguely felt that upgrading the fort would not be as simple as crystallization.

After all, this is a hiding place related to the lives of survivors.

[Upgrading the fortress to the black iron level requires 10000 primary crystals. 】

[Upgrading the fortress to the bronze level requires 10000 intermediate crystals. 】

[Upgrading the fortress to the silver level requires 10000 high-level crystals. 】

……

Listening to the system's quotation, the corners of Lu Yuan's mouth twitched involuntarily.

He can accept spending 10000 primary crystals to upgrade the fort to the black iron level.

But the bronze level requires intermediate crystallization?

The silver level requires advanced crystallization...

At this moment, Lu Yuan just wants to say, sell hemp batches!

Is this an upgrade or a heist?

This is a high-level crystallization!

Even if he is a material boss, there are only a handful of high-level crystals in the warehouse.

Even Lu Yuan knew that the higher the level of the fortress, the higher the crystallization quality needed.

Maybe at that time, a king-level fortress will need various special crystals.

Originally, Lu Yuan thought that he could eat and drink without any worries in this world, and was haunted by crystallization.

But after systematic quotations, he fell silent.

Because he is in an instant.

I found that even if I give everything I have now, I can only upgrade the stronghold to the black iron level.

But thinking of the importance of the Doomsday Fortress, Lu Yuan nodded secretly.

As long as the fortress level is high, the blessings for their team members will be stronger.

At that time, the ability can be upgraded without even absorbing the crystal.

In this way, Lu Yuan felt that it was a good deal.

So it was decided that in the days to come, it was necessary to hunt and kill zombies to obtain crystals.

There is no way, the road is long and the road is long, and the sky will send a big responsibility to people.

In order to ensure the strength of his team, he had to work hard.

But at this moment, Lu Yuan is going to spend 10000 primary crystals to upgrade the stronghold to the black iron level.

So he looked at his stronghold and secretly called the system in his heart.

【Ding! 】

[It is detected that the host will spend 10000 primary crystals to upgrade the stronghold to a black iron level fortress. 】

[Please confirm with the host! 】

"confirm!"

Lu Yuan said without hesitation in his heart.

【Ding! 】

[The stronghold is being upgraded! 】

Lu Yuan stood aside and observed the changes in the stronghold.

I saw a breath suddenly emerge from all around.

This breath quickly surrounded the entire stronghold.

After a few minutes.

Only then did the breath dissipate slowly.

【Ding!Congratulations on upgrading the host stronghold to a black iron fortress! 】

The system prompt sounded that the stronghold was upgraded to a fortress.

Only then did Lu Yuan stare quickly.

I saw that the originally ordinary stronghold suddenly looked vaguely metallic.

Not only the wall, but even the load-bearing wall beside it emits a slight metallic light.

It's just that the exterior of the fortress is still covered with cement. If you don't look carefully, you won't find any changes at all.

As such.

Lu Yuan also successfully upgraded the stronghold into a black iron fortress.

Defense has also been further improved.

Seeing that the upgrade was completed, Lu Yuan smiled slightly.

have to say.

The value of his 10000 primary crystal flowers.

These metal load-bearing walls alone can help their team resist a lot of attacks.

Walking into the fortress, Lu Yuan found that the situation inside had basically not changed.

It's just that when he just stepped in, an invisible breath poured into his body in an instant.

This breath is like spring water and a gurgling brook, making him especially comfortable.

suddenly!

Under the infiltration of this breath, Lu Yuan only felt that his heartstrings seemed to be plucked suddenly!

"Am I promoted to level six?"

Feeling the ripples in his heart, Lu Yuan said with some surprise.

He didn't expect that a black iron level fortress would bring him such a great blessing.

It even raised him to level six in an instant.

This made him excited instantly.

If things go on like this, isn't their squad leveling up just like playing games?

The others also heard Lu Yuan's words, and hurried over and said in surprise:

"You turned out to be a sixth-level power user?"

Lu Yuan nodded.

Qiao Ya kept looking at Lu Yuan's body, her eyes wished she could study him in slices.

Li Bin, Sun Lan and Xu Moyao also looked at Lu Yuan as if they were a monster.

Lu Yuan smiled lightly and said:

"Don't look at me with such weird eyes, I'm just a level up."

But his words instantly aroused public outrage.

You, a sixth-level supernatural being, call this just a level-up?

What about trouble? !

118 Build Doomsday Chariot