Even with helmet protection, it shatters as easily as a watermelon that has been thrown down the stairs, and the juice splashes.

To do this, it takes an extremely terrifying force.

This shows how strong the genetic mutation makes the nezumi become.

The Sain, who can't even withstand his punch!

Seeing their compatriots die one after another in a matter of seconds, the Cult of Mechanics was furious.

Immediately, under the priest's order to fire, they fired at the Rat King. At the same time, grenades were fired at it!

Although the Rat King reacted extremely quickly and began to dodge, several grenades exploded around him.

The violent impact force made it difficult to stand firm for a while.

This reduced his ability to evade artillery fire, and two grenades exploded into his torso, shattering steel.

The shell of the armor, a large piece was destroyed.

The Rat King lost his balance completely, staggering backwards.

Therefore, the direct hit of the third grenade exploded directly in the chest, pushing it two meters away.

Even so, it still did not fall to the ground, but kicked and rubbed hard in time with great force when it was about to fall, stopping its huge body.

The rough stone and brick floors were crushed into ravines by steel boots that carried a weight of about one and a half tons.

With a roar of pain or not, the Rat King turned around and retreated.

He bought his men enough time to retreat to the castle. Subsequently, he also rushed into it.

The heavy castle door, which was originally pushed by several people at the same time to slowly close on both sides of the door, was grabbed by the Rat King at the same time and pushed forward on both sides, and the closure was completed directly and instantly.

This type of wooden door is made of a mixture of wood and steel, which is extremely strong.

However, this strength is only a defense against their powder kegs of low purity.

In the face of such explosive gun grenades, it is still not enough to see.

Even, because of the different blockade mechanisms, it is not necessary to bombard the surrounding area of the door panel with grenades, and it can be smashed by directly concentrating the fire on the door panel.

Luo Zixuan felt that the rat man in this plane still had a bit of a future.

Although they invented the powder keg mainly to blow up mines and open up new mining and residential areas.

However, if you can make a powder keg, you will make an arquebus sooner or later.

No matter how much more cartridge shells are bullets, it is not impossible to make them.

The natural development of technology is gradual.

As long as you start in the right direction, you can achieve at least a certain range of fields.

Of course, Luo Zixuan could also see that if this plane continued to be so isolated, even if there was no Supreme God intervention, the development of science and technology would come to an end to a certain extent.

In the eyes of the god of machines, the upper limit of technological development in each plane depends on these four points.

1: Whether the plane has enough resources to support the development of civilization.

Including timber, food, minerals, etc.

The type and reserves of minerals are the most important.

Although the resources of each plane can be regenerated, they are still a little slow after all, and the reserves are too small to meet the consumption.

2: Whether the race of the plane is under pressure to survive.

This includes whether the natural environment is harsh, whether there are a large number of monsters in the native area, and the threat of hostile intelligent races.

Existential pressures can force races to evolve themselves.

Since there are no psionic abilities in the universe, no collective genetic mutations, and magic can only be learned by believing in gods, the only evolutionary route in the absence of the favor of the gods is to develop technology.

Each plane will prioritize the invention of mechanical technology that will improve its own state of existence the most.

For example, after the invention of the internal combustion engine and boiler room, the first priority was to make steam trains to help them travel longer distances and carry goods.

Since there is no large area of water, they may only think of going around the edge of the railroad or building a bridge on top of it, rather than building a steamboat.

And the ancestor turtle people of Orrani that they saw before, because there are many waters in the divine domain, they urgently need waterway shipping, so they gave priority to building steamships.

Given the land area of their territory, it's not unusual to think of building steam trains.

Take the example of the lizardmen in Darna, the reason why they were the first to come up with the steam miner was because they didn't have an open-pit mine, and they were all very dangerous mines in the mountains. Most of them are also in the snow-capped mountain area.

Mining in such places is extremely inefficient, so they urgently need machines that can mine safer and faster, so they are the first to use internal combustion engines.

3: The average intelligence of the sapient races in this plane.

There's no need to force it too high, as long as it's not too low, some very basic things can be made.

For example, the internal combustion engine is not too difficult, and it can be built sooner or later if it is developed.

In Luo Zixuan's view, the most important factor restricting the development of rat people lies in the second point.

In their field, although the sparrows are small, they have all kinds of organs.

There is simply no shortage of natural resources.

And the intelligence of the rat man is D, although it is slightly lower, but it is far from the level of E and F, which basically has nothing to do with the development of science and technology.

Then the problem is the pressure to survive.

Although he didn't know the details, according to the information he had gathered so far, Luo Zixuan learned that the only enemies of the nezumi were just some monsters living in the mines.

Some of these monsters can be easily dealt with cold weapons, and some are slightly tricky, and they can also directly carry a powder keg to blow up the passage and seal the monsters found directly in the lair. Even if you really encounter a mutant individual that is particularly difficult to deal with, the Rat King can easily solve it as soon as he comes out.

They handled every crisis with this simple and easy method, and they were able to solve it smoothly.

Naturally, there is no pressure to survive.

If cold weapons are enough to solve all the problems of the race, then there is naturally no incentive to develop hot weapons.

No one would have thought about whether gunpowder could be used for any other purpose, such as using propulsion to make iron sand bombs. The Sains were overwhelmed by the monsters in the first place, and they desperately searched for more efficient and powerful weapons under great pressure, and finally invented the arquebus.

It can be said that the birth of the arquebus saved the Seon civilization from being destroyed by monsters.

However, the follow-up scientific and technological research thus attracted the attention of the supreme god. If it weren't for Luo Zixuan's timely rescue, the current Sain people would have been extinct.

The god of machines judged that the ratmen of this plane would continue to deal with monsters until the stability was broken.