In short, on the long front, there were terrifying explosions everywhere, and white mushroom clouds kept rising and dissipating, accompanied by a large number of residual value broken arms rising into the sky.

Blood rain began to fall sparsely in the sky, it was a real blood rain, after too many demons were crushed to pieces, their high-temperature blood rose to the sky, the temperature decreased, and it turned into rain and withered down, which would form this special blood rain.

Without the death of a million-level demon, it is absolutely impossible for this kind of landscape to appear.

And at the beginning of the war, there was a large amount of blood rain, which shows how heavy the demon's losses were.

However, this loss is actually nothing compared to the number of demons in terror.

Although the power of the 20-ton heavy cannon is terrifying, the skin and flesh of the demon are not thick, and the range that can directly cause damage is only one or two hundred meters, and the demon beyond this range will spit out a few mouthfuls of blood at most, and rarely die.

Unless it was a fire demon covered in ice spells, it could die far away.

But as the war progressed, the demons also learned to be more and more well-behaved, and the fire demons no longer dared to swagger and show their faces, and their bodies were basically hiding under the magma, so that they could effectively avoid damage.

The other demons have also learned to protect themselves, and try to ambush their bodies as much as possible while running wild, so as not to be directly hit by the shockwave.

And the demons have also begun to cast protective spells, some can protect against the cold, some can protect against the shockwave, and some simply burrow into the ground to advance, which can greatly reduce the damage.

Coupled with the thick skin and flesh of the demon itself, this further reduces the effect of the shelling, anyway, there are fewer and fewer kills, and more and more injuries.

Moreover, although the lethality of the super cannon is strong, the accuracy is too poor, and between two consecutive shells of the same cannon, there may be a distance of several miles, during which a large amount of air will appear, allowing the demon to pass quickly.

So in general, although a large number of super giant cannons fell in the demon's military array, the first artillery defense line did not completely block the demon, at most it annihilated one percent and injured two percent.

Of course, compared to the endless number of demons, this casualty can already be called astronomical, basically every round of shelling, more than 10 million demons are killed, and more demons are injured.

Although most of the dead were cannon fodder-level demons, the elite demons above the silver level were not unscathed, and they also suffered a lot of losses.

The most critical thing is that there are two follow-up super artillery fire blockades, which also cause a lot of damage to these demon armies that have been slowed down and have a large number of wounded.

Although the demon army at this time has been evacuated a lot and is no longer as dense as before, the terrifying killing range of the super cannon can still ensure that each cannon has the loss of demons' lives, and at the same time, a large number of serious injuries appear.

The distance of 300 kilometers, even for the running demon army, is not a one-time wave, low-level cannon fodder troops have to run for three or four hours, and the masters above the silver level can reach it faster, but unfortunately they dare not take the lead easily.

The more high-level the troops, the more they cherish their lives, and with high-level intelligence, it is impossible for them to put themselves in the position of cannon fodder.

Just looking at the large number of alchemy weapons on that big city wall, it can be seen that this is definitely a tough bone to gnaw, especially at the beginning, it is definitely whoever rises and who dies.

So in this case, the high-ranking troops did not dare to charge directly, and all of them cunningly hid in cannon fodder, and tried to hide their own tracks.

Within three hours of the battle, the demon's vanguard had broken through almost three fire blockades, and in the process, they had paid nearly half of the casualties.

Among them, thirty percent of the demon army was killed on the spot, and the other three layers were injured to varying degrees, and their combat effectiveness decreased greatly, and the rest of them were actually somewhat injured, but with their rough skin and thick physical fitness, their combat effectiveness did not drop much.

But even so, after the baptism of these three artillery lines, the overall combat effectiveness of the demon army has definitely dropped by more than half.

After observing this effect, Emperor Shi Tian and his subordinates couldn't help but cheer excitedly.

It was not in vain that they had invested so many resources in all these time, and these super cannons could be said to have played a huge role.

In the face of an endless army of demons, they can wipe out half of their combat power in one go, and I have to say, 'artillery', really worthy of the title of the god of war!

However, after the four high-ranking lords on the opposite side saw this situation, although they were also a little distressed, they didn't care too much.

Because in their opinion, even the demon army with only half of its combat strength left was enough to easily devour Emperor Shitian's defense line.

Although they paid relatively heavy casualties this time, they were actually within the range of their acceptance, who told them to have an almost endless number of soldiers behind them?

However, just when the four high-ranking lords thought that they had a chance to win, the accident reappeared.

The demon army that finally broke through the blockade of the three giant cannons, because the front had become a smooth road, they could safely and boldly charge, but they didn't run far before they were blown up into the sky by a sudden explosion.

Especially those high-ranking troops with a short temper, who thought they could be the first to rush to the city wall, turned out to be the first batch of unlucky cannon fodder.

There is no doubt that these guys stepped on the mines that Emperor Shi Tian had planted in advance.

In order to entertain the terrifying demon army, Emperor Shi Tian also went out this time, and directly created a terrifying minefield with a depth of 100 kilometers.

Moreover, Emperor Shi Tian also invested a lot of money this time, and all the anti-heavy unit mines were placed, which are commonly known as anti-tank mines.

This kind of mine has a huge feature, that is, it doesn't matter if ordinary cannon fodder-level troops step on it, it will definitely not detonate, only those big guys weighing several tons will step on it, and these mines will explode.

In general, lighter units do less damage to walls, and most of them are low-level cannon fodder.

Only those big guys weighing a few tons, dozens of tons, or even hundreds of tons, that are the main siege units in the Demon Legion.

Especially the terrifying hellfire, dozens of meters tall, and still burning with chaotic hell flames all over their bodies, basically they don't need to do anything, as long as their bodies are attached to the city wall, they can rely on the terrible hellfire to cause huge damage to the city wall.

There are also terrifying heavy armored spider demons, although they are only twenty or thirty meters tall, but they are like spiders with eight legs stretched out, and they can be sixty or seventy meters, or even longer.

The most terrifying thing is that the demon carapace on the exterior of this thing's body can last be three or five meters, and the thinnest one or two meters, and has extremely high magic resistance and physical resistance, easily resisting more than 9 percent of gold-level group damage spells.

It's just a piece of rotten meat that can't be broken, and any army that encounters them will have a special headache.

However, these things are also very flexible, after all, they have 8 long legs, not only can they run fast, but they can also climb over walls and climb cliffs, which is very annoying to the defending troops.

In addition, there are locust demons that can jump from short distances, these guys are a little smaller, but they also weigh more than a dozen tons, and the appearance of a layer of demonic armor that exudes a metallic luster, is also amazingly defensive.

What they hate the most is that they jump fast, just like fleas, and they can jump hundreds of meters high and thousands of meters away every time, constantly jumping around and around, and the speed is very fast.

If you get close to this thing, you can jump directly on the wall, and then the nightmare of the wall defenders will arrive.

In short, the demon army has a large number and variety of heavy siege troops, which is the trump card of their joint efforts.

One of the main reasons why the Heavenly God Academy has built hundreds or thousands of defense lines in front of it is that there are too many of these heavy siege troops, and they are too disgusting.

In view of this, Emperor Shi Tian also simply prepared a generous gift for them, which was a special anti-heavy troop mine.

The detonation conditions of this mine are particularly harsh, and it must bear more than 5 tons before it explodes, and it is okay for troops below 5 tons to step on it.

On the contrary, it will have a confusing effect, where the people in front have walked, how can the people behind suspect that there are still mines there?

Anyway, with this, there are a lot of demonic heavy units.

Of course, in view of the fact that these heavy units of the demons are all rough and thick-skinned, Emperor Shi Tian has also made targeted arrangements.

All alchemy mines are not only detonated with great power, but also the spells used are penetrating, especially restraining heavily armored units.

The most of them is the soul impact, with the support of a large number of magic crystals, the soul impact circle on the mine will burst out with an extremely terrifying soul shock wave, and the lethality has reached the gold level, which is enough to collapse all the demon souls within a radius of several hundred meters.

Therefore, there are often strange scenes on the battle line, and when many heavily armored units are marching, they suddenly stand still, not only him, but even the surrounding demons are also implicated, and at the same time lie on the ground and become dead corpses.

Once or twice such a thing happens once or twice, of course, it will not be eye-catching, but if such a thing happens one after another on the entire front, it will not be able to think of it without being noticeable.

So the demon legions quickly noticed these disgusting things, but they really didn't have anything to do.

They can only know that something is wrong with the place after the mine is detonated, but they can't detect the mine in advance and destroy it.

In addition, in addition to this kind of high-cost mines, Emperor Shi also arranged a large number of other cheap mines, which relied on shock waves to directly impact heavily armored units to kill them.

In order to achieve a lethal effect, Emperor Shi Tian added the amount of alchemy gunpowder to it, and basically every mine had tons of alchemy gunpowder.

Anyway, every time such a mine is detonated, a huge fireball will be created in an instant, and the heavy guys will often be blown up directly, and in most cases, the ones that fly out are only mutilated and broken.

Occasionally, demons who can remain intact will also be shattered by the shock wave, and they will die a miserable death.