The flash of white light ended and Xu Yang opened his eyes.

I found myself in a castle.

The castle is a bit dilapidated, and Xu Yang only has a lighthouse-like cubicle on the top floor of the castle.

The broadcast from the Repatriates Tower sounded.

"Welcome to the 'Castle Guard' game room. You need to defend the dilapidated castle and resist the attack of zombies. If you persist for a week, you will be considered successful."

"Survivors can get 1 zombie point for every zombie they kill. The points can be used to upgrade the castle's attack facilities and defense facilities on the temporary interface on the game panel."

"As time goes by, the zombies' movement speed and defense will increase, and the zombie king will appear in six days."

"Suggestion: Kill as many zombies as possible in the early stage to upgrade the facilities in the castle."

After hearing this, Xu Yang looked around. There were some idle instruments and a bunch of buttons.

It seems that they are all switches that activate the equipment in the castle.

Is this the operation room?

I just don’t know what equipment this castle has.

Xu Yang muttered silently: "Open the game panel."

Sure enough, I saw a new temporary icon on the translucent game panel, which was the icon of the castle.

Xu Yang reached out and touched the castle icon, and a panel about the castle popped up in front of him.

[1: Attack facilities] [2: Defense facilities]

Xu Yang chose to check the attack facilities first.

[Attack facilities are as follows]

[Clip Trap]: Can be placed outside the castle. The clip trap can clip off the legs of zombies and restrict their progress. Attack power rating: C

[Basic musket] can be upgraded: There is a basic musket at the bottom of the castle, and the flames can burn zombies. Attack power rating: B

[Laser defense tower]: Can be placed on the top of the castle. The laser can quickly cut zombies in a short time. Attack power rating: A

[Electromagnetic Pulse]: The operation room is equipped with an instrument that releases electromagnetic pulse. The pulse can clear zombies in a wide range. Attack power rating: S

Xu Yang nodded secretly. The castle's attack facilities were pretty good. In the early stage, he relied on clip traps and elementary muskets to kill small zombies to earn points. In the middle and later stages, whether it was laser defense towers or electromagnetic pulses, they had a wide range of killing effects and were extremely powerful.

So, let's take a look at the defense facilities.

[Defense facilities are as follows]

[Wall] Upgradeable: A wall made of bricks, which can be upgraded using zombie points. Defense rating: C

[Slowing Light Wave]: Set in the area between the wall and the outer wall of the castle, it can slow down the movement speed of zombies by 99%, lasting for one minute. Defense rating: B

[Dragnet]: Set up a spike grid on the outer wall of the castle. When activated, it can restrict the zombies climbing the outer wall of the castle! Make the zombies more mobile. Defense rating: A

[Absolute magnetic field field]: An absolute magnetic field set up in the operation room. When the castle is captured, the absolute magnetic field field can ensure the safety of the operation room for ten minutes. And after that... pray! Defense rating: S

Xu Yang probably felt confident.

After understanding the attack facilities and defense facilities, Xu Yang began to arrange the first facility.

There is now a free point on the game panel of the castle, and you can directly select a facility to upgrade.

Without thinking, Xu Yang first added an attack facility [Clip Trap].

In the early stage of the game, [Clip Trap] is actually both offensive and defensive, and is extremely cost-effective.

"Survivor No. 369 has added a facility [Clip Trap]."

"The facilities have been arranged."

"In thirty minutes, the first wave of zombies will appear. Please be prepared for defense."

"Repeat, in thirty minutes, the first wave of zombies will appear, please be prepared for defense."

Xu Yang walked to the left side of the operation room and looked down through the window here. He could clearly see that many traps had appeared out of thin air around the bottom of the castle. There were quite a lot of them.

Above the operation room, there are more than a dozen monitors.

Monitor all directions, as well as the castle corridors, rooftops, and entrances and exits on the ground floor.

Xu Yang simply adjusted the angle of the monitor to make his field of vision wider and clearer.

Then wait for the zombies to appear.

······

Thirty minutes later.

The broadcast sounded: "The first wave of zombies has appeared, the number is 'fifty', 100 meters away from your castle, please be prepared for defense."

Fifty of them, it’s a piece of cake.

Xu Yang carefully stared at the picture on the monitor and found that the speed of the first batch of zombies was slower than that of ordinary people walking, and they did not pose any threat to him at all.

The number of clip traps is more than enough to handle them.

These zombies have extremely low intelligence and usually walk to the traps on their own and then lose the ability to move.

After ensuring that they were all incapacitated, Xu Yang went downstairs, left the castle, and came to the outskirts.

He took out the Swiss Army Knife in the safe house and killed fifty zombies with one headshot.

"You killed a zombie and gained 1 zombie point."

"You killed a zombie..."

"You have eliminated the first wave of zombies. The next wave of zombies will appear in an hour, numbering one hundred. Please be prepared for defense."

After having fifty points, Xu Yang used the fifty points to upgrade the first defensive facility - the wall.

"The castle has been equipped with defensive measures [wall], which can be upgraded with zombie points!"

······

An hour later, the system broadcast sounded: "The second wave of zombies has appeared, the number is one hundred..."

Still using clip traps to incapacitate zombies.

Then Xu Yang walked out of the castle and cut off the zombies' heads one by one to gain points.

With the [Fence] in place, Xu Yang's defense and offense can be carried out in an orderly manner.

This time, Xu Yang used one hundred zombie points to upgrade the primary musket.

"You have upgraded the [Basic Musket]. The musket is equipped at the bottom of the castle. Please note that there is a chance that the Junior Musket will be destroyed by zombies and cannot be repaired after damage!" the announcement sounded.

Xu Yang didn't care at all.

He even took out a bag of pickled chicken feet from the safe house, sat in the operating room with his legs crossed, and ate it with relish.

If you look at the current strength of zombies, this level won't even threaten you at all!

But obviously, each round of zombies is stronger than the previous round.

To be sure, Xu Yang muttered: "Open the auction house!"

Search·Notebook, Search·Pen.

Xu Yang spent a small piece of bread on paper and pen, and then drew a table in his notebook to make data judgments on the number and intensity of zombies at the end of the day.

A total of five waves of zombies appeared on the first day.

Xu Yang’s form is as follows:

On the first day, zombie attributes: The first wave, numbering fifty, is slower than a human walking, has extremely weak defense, and can easily hit the head with a saber.

The second wave, numbering one hundred, has a speed equal to that of a person walking, and its defense is slightly weaker. The saber needs to be used hard to hit the head.

The third wave, numbering two hundred, is slightly faster than a human walking and has weak defense. The saber needs to be used with all its strength to get a headshot.

The fourth wave, numbering 400, is obviously faster than a human walking, and its defense is acceptable. It is difficult to hit the head with a saber, and it requires a follow-up knife to hit the head.

The fifth wave, numbering 800, is much faster than a human walking, and has good defense. It requires several consecutive stabs in the head to kill it completely.

At ten o'clock in the evening on the first day, after Xu Yang recorded all this, the radio rang: "All the zombies have been dispatched on the first day. The zombies will be dispatched at eight o'clock tomorrow morning on the second day. The number is 1,600. Please be prepared."

Defensive preparation.”

After the broadcast disappeared, Xu Yang looked at the form carefully.

He found that the number of zombies increased exponentially, with each round doubling the number in the previous round.

And the speed and defense are gradually improving.

You know, it's only the first day, and the fifth wave of zombies is already so intense.

It is not difficult to imagine the last wave of zombies on the seventh day, as well as the zombie BOSS.

"It seems that this level is not as easy as imagined."
Chapter completed!