Ten minutes later.
Su Ye completed four transactions.
Three of them were five zombie crystals.
One was four zombie crystals.
Accumulated consumption of 19 zombie crystals.
Su Ye obtained 4 Guardian Beast Runes and 15 Iron Pieces.
There were also people who traded with Su Ye one after another. Su Ye sent the message that the transaction of resources had been completed one by one.
If the deal failed this time, there would be another chance in the future.
Wood: 174
Stone: 81
Iron Block: 71
[Zombie Crystals: 20]
[Plant Imprint: 1]
[Mechanical Imprint: 2]
[Guardian Mark: 4]
[Mark of Light: 0]
[Hawkeye Archer (Green): 4]
[Mining Machine Blueprint (Green): 2]
Gene Serum (Green): 1
……
By exchanging resources, one could make the resources they had more reasonable.
"With four Guardian Beast Marks, I can create two more Tier 5 Eagle Eye Archers.”
"Or let a Tier 5 Hawkeye Archer advance to Tier 6.”
For a moment, Su Ye was in a dilemma.
If he could build more eagle-eyed archers, he would be able to widen the front line.
It would make it easier to defend a defense line of more than 50 meters.
After all.
Su Ye's current left wall only had two Stage 1 Pea Shooters, four Stage 5 ordinary archers, and two Stage 5 Eagle Eye Archers.
With the addition of two more Hawkeye Archers, the area covered by their attacks would be even wider.
Raising an Eagle-eyed Archer to Tier 6 consumed about the same amount of resources as building a Tier 5 Eagle-eyed Archer.
However, it could kill the giant zombie faster.
After thinking about it, Su Ye decided to take a compromise.
Of the four Guardian Beast Marks, two were used to construct a Tier 5 Archer.
The two were used to upgrade the Hawkeye Archer to Tier 6.
"We need to use the iron too."
"Summon as many as you can.”
"This way, the pressure on me will be much less.”
While he was thinking, Su Ye spent 40 iron pieces to trade for two more Guardian Beast Marks.
After a series of operations.
Su Ye summoned two new Hawkeye Archers, but they were both Tier 1.
He could only advance tomorrow or even the day after tomorrow.
At this time, Su Ye's resources had also been depleted.
Wood: 164
Stone: 81
[Iron Block: 21]
[Zombie Crystals: 10]
[Plant Imprint: 1]
[Mechanical Imprint: 2]
[Guardian Mark: 2]
[Mark of Light: 0]
[Hawkeye Archer (Green): 2]
[Mining Machine Blueprint (Green): 2]
Gene Serum (Green): 1
……
Su Ye used the remaining mark of the Guardian Beast to upgrade the Tier 5 Eagle Eye Archer to Tier 6 tomorrow.
Su Ye's gaze carefully inspected the resource store. After confirming that there were no major problems, Su Ye was relieved.
At present, there were more wood and stones.
This was the key resource for Su Ye to fight against the zombies when the zombie tide arrived tomorrow.
Su Ye could use the firepower of the Guardian Beasts and the Pea Shooters to kill the ordinary zombies.
As for the giant zombies that could last for a few minutes, as well as the mutated zombies that might be present.
Su Ye needed to rely on building a wall outside to attract their attention and delay as much time as possible.
Of course, it would be even better if the Type 6 Eagle-eyed Archers and Type 5 Archers could quickly deal with the Giant Zombies.
"In the first day or two of the Dark Tide, the number of dark creatures won't be too exaggerated.”
"This gave me a day or two to prepare.”
"On the third or fourth day, not only will the zombies appear, but other dark creatures such as ghosts, wraiths, banshees, werewolves, vampires, ogres, orcs, and so on will also surge into the zombie army.”
"It's a pity that I don't have enough iron blocks. Otherwise, I could build a four to six meter tall steel wall. At that time, the completion rate would be a level higher.”
In the Dark World, there were four main steps to the construction of the tower defense wall.
The first step was a wooden tower defense.
The second step was the stone tower defense.
The third step was the steel tower defense.
The fourth step was the titanium tower defense.
It was said that there was also the fifth-tier 'steam tower defense'.
In Su Ye's memory, he had only heard of it in some biographies.
It was said that in the depths of the distant Dark Kingdom, mechanical technology had developed to an extremely high level. It had entered the Steampunk era, and all kinds of steam machines with vitality had been forged.
The humans didn't even need to do anything. These steam machines would go deep into the darkness and kill all kinds of dark creatures, bringing rich survival resources to the humans.
Currently, humans were in the period of steel tower defense.
In historical terms, it was the " Iron Age."
The tower defense of large cities was made of iron and other materials.
With such a defense, even if the giant zombies were to reach the tower defense wall, the steel wall would be able to resist them for a long time.
Even if the mutated zombies attacked the city, the city walls were thick enough to withstand them for a few hours.
This was something unimaginable in the Stone Age, where walls were built with stones.
It was said that in the even more ancient " Wood Age ", humans could only hide in caves and survive.
As for Su Ye.
His stone walls were from the more primitive " Stone Age ", so it was not enough to resist the attack of a large number of zombies.
Fortunately, Su Ye had the system and a high-level guardian beast that others could not reach.
This was also the strongest guarantee for Su Ye to survive in the Dark World.
This book comes from：m.funovel.com。