Doomsday Super Farm

The conditions for upgrading the lv5 shelter are different from the previous levels. In addition to the high points, there is also a very special requirement.

"lv5 shelter upgrade volume."

"Price, points: tens of billions"

"Price, demand for items: the fire of civilization!"

Li Tianran looked at the cold words in the mall. The points were naturally easy to understand, but what was the fire of civilization?

"The fire of civilization: This is something born when a civilization is inherited or destroyed. It may be a book recording historical materials of civilization, or a stone tablet engraved with a totem, or a person, or more likely a spirit, a

A will!

There is no precise construction standard for this kind of thing.

But it is necessary for a civilization to move to the next higher level.

You can get it from human civilization, or you can get it from the more ancient civilizations of other creatures!

But remember, for different civilization fires, the lv5 upgrade scrolls that can be purchased will have different effects after use!

Please choose carefully!”

Li Tianran frowned.

This last upgrade of the shelter seems to be much more difficult than I thought.

Originally, Li Tianran planned to collect the remaining human minerals from all over the world, exchange them for massive points in the recycling system, and directly force the level 4 shelter to level 5. In this way, with the help of the rewards from the level 5 shelter upgrade, it would be enough to crush him.

The existence of ancient civilizations.

But things often don't develop as people imagine. For Li Tianran at this time, tens of billions of points are nothing, but the "tinder of civilization" has stuck him to death.

He has no clue.

So far, countless civilizations have been born on Blue Star. However, if these civilizations have not surpassed Level 1 civilization and completely entered the space age, they will not be able to fight against the horrific natural disasters on Blue Star and the threat of meteorites in the sky. Almost all of them will disappear in the sky.

In the dust of history!

As time goes by, all traces of those civilizations have been erased.

Living things die, books turn to dust, buildings collapse into mud, and steel technology is decomposed into the most primitive dust. There is almost nothing to prove their existence. Where can we find the fire in their civilization?

Don't think how powerful human civilization is. Amid the terrifying space threats, the weapons possessed by humans are simply not worth mentioning.

Even if humans release all the nuclear weapons they possess, it will only be a layer of dead skin rubbed off for Blue Star. And the Valley of Death on the Kunlun giant ship is powerful enough, right? But a kilometer of depression, for

For a blue star with a diameter of more than 10,000 kilometers, at best it can be said that its calluses have been removed.

From Blue Star's perspective, the raging and brutal war between Li Tianran and the ancient civilization was nothing more than a fight between two groups of ants.

The civilization of the six ancient kings is considered powerful, right?

But all it takes is a meteorite with a volume of about ten kilometers to hit the blue star at a speed of 40 kilometers per second. The six ancient civilization kings will all die out in an instant, destroying all the products of this civilization, and even the entire civilization.

The environment of Blue Star will change.

In the past years, this kind of terrifying impact has happened countless times.

The reason why the civilizations of the six ancient kings have been able to survive to this day is simply because that horrific disaster never happened during their existence!

"The fire of civilization... The horrific disaster that once occurred on the Blue Star has destroyed all traces of the older civilization. The only traces left are human civilization and the civilization of the ancient kings. It seems that this thing can only

Obtain it from these two civilizations." Li Tianran said softly to himself: "It is impossible to dig the earth and read the history books to find the remains of other more ancient civilizations."

Time changes, plates shift, and the sea turns into a mulberry field.

On today's Blue Star land, it is no longer possible to find traces of other civilizations.

"This cannot be done in a short time... Perhaps it will take until the ancient civilization is defeated or human civilization is destroyed to obtain that strange thing." Li Tianran was speechless, and it seemed that he wanted to do it in a short time.

The plan to upgrade to a lv5 shelter and use higher-level shelter technology to crush the ancient civilization has come to nothing for the time being.

Buzz!

The sound of huge propellers churning the air flow resounded under the sky, and the helicopter Li Tianran was riding headed straight for Kuangxi Island.

Behind the helicopter, ten mecha warriors formed a queue, like the most loyal guards.

Under the current situation, even Li Tianran has become extremely cautious. He needs to always be on guard against attacks from ancient civilizations.

A defense team composed of ten mecha warriors could once run rampant on Blue Star, but now it also needs to keep a low profile.

After the Battle of Fort Cartier, the positions of the other four ancient buildings did not change. However, the Sky Castle was too close to the human defense line and was bombed by the Kunlun giant ship. It was forced to leave the area where it originally docked. At this time, Wu disappeared unexpectedly.

No trace.

I don't know if the other party has a technology that can block satellite reconnaissance signals. In short, no matter how Li Tianran used combat satellites around the world to search, he was unable to find the other party's location.

If we want to launch a war against an ancient civilization, then the first choice must be the Castle in the Sky, which has already suffered heavy losses. The law of taking advantage of someone's illness and killing someone will not change no matter how many years it takes.

But the situation at this time made Li Tianran very helpless.

The global army is gathering at this time. If the enemy's hiding place cannot be found after the assembly is completed, then Li Tianran can only change the target of the attack to one of the other four ancient buildings.

Facing an enemy at its peak, the human army will definitely suffer more tragic losses.

…

The abyss of the sea.

Since the Kraken was killed, this place has become a deserted land, but at this time, the deepest darkness of the Abyss is emitting a faint blue light.

A large number of beast kings began to gather here, staring at the area where the light was with doubtful eyes.

Finally, a giant beast couldn't help but take the initiative to approach, but the next moment, a black shadow flashed past, and the giant beast was cut off at the waist, and was instantly killed. The blood spread and filled the entire Ji Abyss!

"Ouch!"

Countless beast kings roared in that direction.

A dark shadow emerged from the darkness, with giant wings spread out, with a wingspan of a thousand meters, and golden pupils shining brightly in the darkness. It moved slowly, and a huge blue-black dragon head emerged from the darkness, and at the extreme

In the deepest part of the abyss, the dilapidated sky castle is being repaired by a group of small mechanical spider-men!

Sky Apostle!

It actually hid in the abyss of the sea!

The moment it revealed its true appearance, countless beast kings felt the fear from the deepest parts of their hearts. They dispersed in horror and fled further away crazily.

"roar!"

The giant dragon suddenly flapped its huge wings and rose above the abyss. It glanced at the sea beasts and let out a shocking roar.

The bodies of those sea beasts stiffened, and then they no longer fled, but slowly gathered together, lowering their heads in the direction of the abyss!

It's like worshiping their new king!