After the expeditionary force evacuated the system where the alien civilization was located, a cube structure was teleported to the alien home planet.

The cube-shaped building was teleported by the Ten Thousand Machines and contained an experimental iron man created by Krone and Chen Mo after a long period of indoctrination.

Krone knew what his mission was, and that was to investigate this strange alien civilization.

Regardless of whether the investigation goes well or not, in the end, these aliens will be completely erased, and the person responsible for erasing the aliens is the experimental iron man made by Chen Mo.

The Experimental Iron Man is not the same as the Serious Iron Man, and is not self-conscious, but is only built as a war machine, like a low-spec and small version of the Extermination Relic.

The Experimental Iron Man was four-legged and three meters tall, and his entire body was filled with weapons such as logging guns and heavy explosive bombs, as well as engineering printing equipment used to repair himself and build his own kind.

The experimental iron man is not very perfect, but this is the best iron man that Chen Mo can make with the knowledge he has learned, and as for the more advanced version of the iron man, he will have to wait for more knowledge to be instilled in the future.

"Start Mining Mode." Krone put his hand on the cube building and gave the order at the same time.

The building immediately stretched out its four mechanical legs and stood up, and the internal system began to probe the planet's ore veins, and when a suitable ore vein was found, the building automatically walked over and released the drone.

Thanks to the fact that the planet's minerals are basically a few dozen meters above the surface, the mining work is going very smoothly, and the minerals are excavated by drones and transported to the perimeter of the cube building.

"Enforce the extermination protocol." Krone gave an order to the Iron Man.

"Roger, execute extinction protocol." Iron Man walks up to the mineral and starts printing his companion.

More and more Iron Men were printed, and when they had collected a hundred and one more, the krona took a hundred with them, leaving only one to continue printing Iron Figures.

The roar of the cube building in motion quickly caught the attention of the xenomorphs, who burrowed out of the burrows and flocked to the cube's location.

Sensing a great sense of crisis, the aliens sent only a small number of troops to attack the krona, while the rest of the forces besieged the buildings that were extracting ore.

The only remaining Iron Man copes methodically with the siege while printing its kind.

The newly printed kind, as well as the same type of type, fights and prints the same type at the same time.

Krona immediately analyzes the current situation.

Most of the planet's land has been plowed by the Battle Moon, but there are still a large number of aliens, which indicates that the aliens on the surface of the planet are only a small number, and more aliens are inside the planet.

And it must not be the giant creature under the surface of the sea that commands these arthropod aliens, because the creatures are dead, but the aliens are still moving in an orderly manner.

"There's something really interesting about this planet." Krone muttered to himself, then withdrew his gaze and walked forward calmly.

The Iron Men guarding Krona's side slaughtered the approaching Xenomorphs, carving out a path full of green blood, and they and Krona were not slowing down by the Xenomorphs' siege.

Krone grew farther and farther away from the cube building, glancing at the building that was gradually submerging in the alien sea, and then continued on his way without worry.

……

Three days later.

Krone crouched in front of a fat bug and analyzed the insect's structure with his electronic eye.

Beside Krona were a hundred Iron Men, and these hundred Iron Men formed a circular front to defend against the alien attack.

"Brain worms." The krona named the fat bug.

Analysis has confirmed that the brain worm is a large mollusk, and their brain occupies 80% of the entire body's capacity, while other organs account for only 20%.

However, the brain worm is not the commander of these arthropod species, but rather a counselor and scientist who is akin to a consultant and scientist, responsible for formulating tactics and researching the best evolutionary direction for the entire species.

This would explain why the human army had wiped out so many brain worms before but it had no effect.

In addition, although the skin of the brain worm is soft, it can absorb and disperse the impact force, and even automatically adjust the temperature according to the environment, so it is an excellent material for making clothes.

"Interesting." Krone stood up and pressed his hand to the soft skin of the brain worm.

This is a means of attack.

The brain worm's body inflats and explodes like an inflated balloon.

Krona didn't move on, realizing that the leader of the alien was inside the planet, and even the giant creatures in the ocean were just the biological weapons of the leader, so he had to go deep into the interior of the planet to continue his research.

And this will require the Iron Men to take full control of the planet's surface and begin to remove the aliens underground.

"It's expected to take another week." Krone calculates how long it will take for the Iron Man to take control of the planet's surface.

……

The cube and the Iron Man that wasn't taken by Krona were indeed overwhelmed by the massive xenomorphs a week ago, but they weren't destroyed.

Realizing that the existing Iron Man was not enough to crush the enemy, the Iron Man allowed the alien bone knife to scratch his body.

Even if the venom from the skeletal rifle in the Xenomorph's hand can corrode the body, the Iron Men just calmly tinker with the body and continue to print the same kind.

When the cube building is destroyed, the Iron Men will calmly repair the building and continue to print the same kind.

Although the Alien and the Iron Man are both on the same battlefield, they are completely separate from each other.

Until more and more Iron Men are created, and these Iron Men create more Iron Men, and so on until there are more Iron Men than the aliens besieging them.

The iron people stood together in a long line, advancing in four directions: southeast, northwest, and northwest.

Compared with the number of iron men, the aliens can be described as less, and there are often a large number of iron men surrounding and annihilating a small number of aliens.

And these iron men are not low-quality cannon fodder, they are amazing in combat and can repair themselves, and even modify their weapons and equipment according to the situation on the battlefield.

Looking down at the surface of the planet, you'll see the Iron Men lined up in a gray wall, which is constantly pushing forward and easily annihilating any aliens it encounters, even though they don't have any battle damage, but still a large number of Iron Men are replenished from behind.

When you encounter the ocean, you jump into the sea and follow the bottom of the ocean to the opposite shore.

Jump off a cliff and climb up the cliff after destroying the aliens under it.

Iron people will also walk into the crater until an iron man has melted down and other iron men have figured that it is impossible for an organism to hide in it.

Of course, the Iron Men also burrow into the ground, leaving some of their kind at each fork and continuing on their way.

Whether it was morning or night, whether it was a storm or a sandstorm, the Iron Man traveled sleeplessly, slaughtering all the organic life they encountered along the way, and even a dog passing by had to be fed a bomb.