Quickly finish the monster and pick it up to return to town.

Sure enough, a member of the engineer squad waited here early to hand over an item to Zhang Yang.

"Hehe......" Zhang Yang laughed and sent a message to Wolong and several people.

When they all came, Zhang Yang successfully upgraded the town with some ostentatiousness.

Looking at the town in front of him, which had become level 4, Zhang Yang only smiled slightly, but the people in Wolong around him couldn't close their mouths at all.

Level 4 towns mean that gunpowder apotheries can be built, and once gunpowder is available, equipment can be modified, miners can mine more efficiently, and even real cannons can appear.

Gunpowder, which can only be made in a gunpowder shop, requires materials such as sulfur, saltpeter, and charcoal, which can only be collected and refined by miners and woodcutters after level 4 in the town, resource exploration and mineral processing have reached level 4, and then sent to the gunpowder shop to make gunpowder.

Zhang Yang took out the gunpowder shop drawings and used them directly.

The address of the gunpowder pharmacy is advertised to be built on a vacant lot downstream, and this building will also drain wastewater, and if it is upstream, it will pollute the rice fields, making the rice fields less productive, and even making NPCs eat bad stomachs and reduce lifespan.

Moreover, this place is also close to the instrument room, which is much more convenient.

Soon, the gunpowder shop was built, and from a distance, there was nothing special, except that the tall smoke windows kept black smoke coming out, and there was an iron pipe connected to the river, all of which showed that what was made inside was not very environmentally friendly.

Several high-level officials were looking at Zhang Yang, waiting for him to demonstrate, after all, it is gunpowder, although it is only a superficial use now, but it is also gunpowder.

Zhang Yang had no choice but to smile bitterly, pulled out two catapults in the instrument room not far away, and then transported them to the gunpowder room.

Bring up the interface and look at it carefully.

At present, there is level 4 in the town, and there is 1 type of equipment that can be transformed, and there are two kinds of ammunition manufacturing, which are gunpowder bullets, grease bombs, and fierce fire oil tanks.

Gunpowder bullets, which can be thrown by catapults, are the same size as the stones of catapults, but are actually objects mixed with dirt and countless small iron balls, which are gunpowder, before being projected, ignite first, and will explode after a certain period of time, and the small iron balls will scatter out, causing damage to surrounding targets, this ammunition is the same as stones, it has no lethality to the player, but it has a great effect on the border, and can also be used for naval battles and attacking buildings.

Fierce fire oil tank, this thing needs to be pulled by the chariot, because it is all cast in bronze, the weight is very large, its role is fire attack, can be understood as a flamethrower, but the fuel in it is not gasoline, but the animal fat that has been processed in the animal processing room, after squeezing and spraying out, it also has a role in the border line, but because of the limited space, the animal fat will not be stored a lot, the sustainability is not high, and the frequency of use is not high.

The last one, is the grease bomb, its effect is more pure, is to bring continuous damage, it is an iron ball closed by a thin iron sheet, which is full of grease, once detonated, the burning grease will sputter out, and it will ignite immediately if it touches any building, this grease bomb, also fired by a catapult.

These three new things, gunpowder bullets and grease bullets, can be used in naval battles, while the role of the fierce fire tank is relatively simple, and it is a close-range attack, so it is not very commonly used.

After waiting for a while, the mine sent back the little materials he had just collected, and then the NPCs in the gunpowder pharmacy quickly made gunpowder, and made a gunpowder bullet and a grease bullet, which were hung on two catapults.

"Let's go, go out and try it." Zhang Yang said hello, and the players who watched the excitement immediately went to hire two carriages to pull the catapult out of town.

Several high-level executives of Fa Cake followed excitedly, they could imagine that with the blessing of these new equipment, any border in front of them was window paper, vulnerable.

"It's been a little quiet lately, and I don't know when the big battle will be." The strongest villain walked beside the fat cake, and some complained that the strongest villain is actually quite smart, and knows who is the most trusted person around Zhang Yang, many people choose Wolong, and some things are said to Wolong, which is indirectly reflected in Zhang Yang's ears, and the strongest villain chose the hair cake, because the hair cake is the only one who is scolded by Zhang Yang at every turn.

In the eyes of the strongest villain, the scolding that can be named by Zhang Yang is like a daily scolding, and not everyone can do it.

"Don't worry, Zhang Yang said, there is going to be a big move recently......" Fa Cake looked at no one paying attention to his side, and whispered to the strongest villain, and gave a look you know at the end.

Sure enough, the strongest villain perked up, twisted his neck, and laughed twice in the sound of clicking bones.

He didn't know what the so-called "big move" in Fa Cake's mouth was, but as long as he said goodbye to this boring day, since he had recovered the Wa Kingdom and Duyin, he had nothing else to do except level up, but the problem was that he was already at level 70, and he really didn't have the need and motivation to practice again.

The strongest villain was the first player to reach the full level, which he thought was a good thing, but the boring days that followed made him a little nostalgic for the period when he was out fighting.

And there are not a few people like him, this game has officially entered the "Dark Age", if you don't hit someone, people will come to beat you.

Soon, many high-level officials chatted and walked outside, and two catapults were also transported to the gate.

"Let's try powder bullets first." Zhang Yang said to several players who were waiting by the catapult at this time.

These players were not called by Zhang Yang, but they came with curiosity when they saw the high-level and catapults coming out along the way, and they also knew that Zhang Yang was going to test new weapons, so they were naturally very interested.

Several players nodded, and skillfully climbed onto the catapult, and in the groove under the catapult, there was a black round object that was different from ordinary stones, and the three players lifted it up and placed it on the launch pad above.

"Light the fuse with a torch before it is projected." Zhang Yang shouted.

Several players hurriedly took out the torch and lit it, and then ignited the fuse, and another player, who had already prepared, directly cut the rope that held the projection board, and poofed, the projection board ejected, and the gunpowder bullet in the depression above flew directly into the distance with green smoke.

There was a bang, and the sound was not very loud, and the gunpowder bullet directly hit a big tree in the distant forest, and then the gunpowder bullet slid down the trunk of the tree in a fallen leaf, and at this moment, with a bang, the gunpowder bullet exploded directly, and countless black spots visible to the naked eye scattered out, hitting several big trees around, and the blood reduction numbers in the eyes instantly appeared.

Fa Cake several people took a breath, this thing looks about the same size as the stone, but the lethality is much stronger than the stone, Fa Bao can see clearly, just now, the explosive gunpowder bomb attack range is about 10 meters, the number of attacks in an instant is about more than 100 times, if you attack the border, the effect must be good and scary.

Zhang Yang also nodded secretly, he was still very satisfied with this effect, with this thing, attacking the border would be more efficient, and it could reduce a lot of time, which was extremely important for arranging tactics.

"Try grease bombs." Zhang Yang became intrigued and said to the player on the other catapult.

"Yes."

A few players followed the example of the other catapult and projected the grease projectile, which was about the same size and mass as stone.

The lead of the grease bomb was burning, but before it landed, it exploded directly, and countless burning grease spilled down with the direction of the wind, some fell to the ground, some fell on the leaves, and in an instant, this area turned into a sea of fire, even if it was dozens of meters away, everyone could hear the sizzling sound, and a smell of smoke drifting with the breeze.

This sea of fire spread to all sides, turning the surrounding area of nearly thirty meters into a sea of fire before slowly extinguishing it, but the big trees in the area turned into ashes, and with the breeze blowing, they directly turned into flying ash.

During this period, countless blood reduction numbers emerged, which shows that the grease bullet has played its own sustainability to the fullest.

"This ...... If you throw tens of thousands of grease bombs, I'm afraid that no border can withstand it......" Fa Cake said a little staggered.

Several other high-ranking officials nodded with a glint in their eyes, with this kind of weapon, if they attack the border, they can quickly break the border, and even before the other party's large army comes, they can land, which is a great advantage.

Zhang raised his eyebrows, he also didn't expect this result, it seems that this thing will be the main force to attack the border in the future, but the cost of this thing is not low, in addition to various materials, each grease bomb will also give the gunpowder 1000 yuan of labor fees, if you build 10,000, it is 10 million game coins, this ...... It's too expensive.

"It seems that we have to make the most of it." Zhang Yang muttered to himself, his eyes flashing with a light that only he could understand what it meant.