Cataclysmic Era: I can unlock the tech tree

The battlefield has moved from three dimensions to four dimensions.

As indigenous people, there is no doubt that [Shi] has a significant home-field advantage.

But the Sweepers' White Dwarf Fortress and Neutron Fortress are no pushovers either.

After the dimensional upgrade, the Cleaners civilization's attack methods changed from three-dimensional to four-dimensional.

Four-dimensional shock bomb, four-dimensional spatial rift...

And the most primitive general-purpose kinetic energy weapon—launching four-dimensional projectiles directly—is also a good attack option.

However, the battle remained deadlocked.

the reason is simple.

The biggest difference between four-dimensional space and three-dimensional space is that it has a fourth direction.

The Cleaners civilization needs to perform a lot of calculations to solve the coordinate transformation problem.

However, the four-dimensional beings, being native inhabitants, are different; they have an innate ability to recognize the fourth direction.

This phenomenon is quite bizarre in three-dimensional space—the other party makes no move, yet the cleaner's attack misses.

suddenly,

The neutron fortress that had remained stationary began to move.

Unlike the White Dwarf Fortress, which can only launch conventional attacks, the Neutron Fortress has a unique weapon that no one else can match—itself.

The neutron fortress, whose outer shell is almost entirely composed of dense neutrons, is in some ways even stronger than a neutron star!

After all, the outer regions of neutron stars are not actually dense neutron structures.

As they watched the silvery-white planetary fortress begin to accelerate, all the four-dimensional beings became serious.

Swish!

The neutron fortress, having completed its coordinate analysis, vanished from its original location.

The next instant, it appeared directly next to a four-dimensional being and crashed into it hard!

This scene directly terrified the four-dimensional beings.

Since they are four-dimensional structures, four-dimensional transitions in three-dimensional space cannot be applied to them.

Similarly, normally, even an upgraded neutron fortress cannot use four-dimensional jumps!

But that neutron fortress exhibited a function similar to four-dimensional jump!

There is only one possibility.

That's not a four-dimensional leap, it's a five-dimensional leap!

Only a five-dimensional transition can accommodate a four-dimensional object!

Thinking of this, Shi's expression quickly turned ugly.

One force can overcome ten techniques.

Its structural strength exceeds that of ordinary neutron stars, making it a terrifying presence in both three-dimensional and four-dimensional space.

The moment the two collided, the unfortunate four-dimensional creature let out a wail!

Immediately afterwards, a powerful gravitational force suddenly appeared on the neutron fortress!

The mass of dense neutron materials is extremely large, which also gives them an extremely strong gravitational effect.

Normally, neutron fortresses have gravitational shielding capabilities.

But at this moment, it directly removed its original gravitational shield, revealing its powerful gravity, comparable to that of a neutron star!

Gravity is ultimately an unusual phenomenon.

Even four-dimensional beings cannot escape the bondage of gravity.

Such close contact with the gravity of a neutron star would be a disaster for that unfortunate four-dimensional being!

Its body was rapidly stretched and torn apart, and it fell toward the surface of the neutron fortress.

Under the influence of gravitational acceleration, when the debris came into contact with the surface of the neutron fortress, the debris's velocity even exceeded 0.2c.

Bang!

A violent explosion occurred on the surface of the neutron fortress, but it had no effect on it.

The shell, made of a dense neutron structure, doesn't even have the slightest bulge!

As for that unfortunate four-dimensional being...

After shedding 30% of its body, it successfully escaped the neutron star's clutches.

But the neutron fortress did not give up. Under the control of its internal personnel, it disappeared into the universe again, and through a five-dimensional jump, it crashed into that unfortunate four-dimensional being once more.

Bang!

Another impact!

This impact shattered all the protective barriers on the surface of that four-dimensional creature!

At the same time, a silvery-white object resembling a piece of paper was launched towards the four-dimensional being.

"Two-dimensional fragments!!"

The four-dimensional creature let out a cry of alarm and struggled to escape.

But it was too late.

The two-dimensional fragment successfully collided with the body of the four-dimensional being.

The two-dimensional fragments, enhanced and modified by the Cleaner civilization, possess even more powerful dimensional reduction capabilities!

Suddenly, complex and enormous three-dimensional structures appeared out of thin air in the central black hole region of Andromeda.

These are the remains of a four-dimensional being.

……

Things happened so fast that none of the four-dimensional beings had time to react.

"Damn it!"

[Time] swayed rapidly, moving away from the neutron fortress: "When did the Sweeper master two-dimensional and five-dimensional space?!"

No one provided an answer.

The tachyon communication band was filled with messages of terror.

[Information is incorrect! Information is incorrect!]

Report this immediately!

The cleaners have gained some understanding of two-dimensional and five-dimensional space! Retreat! Retreat immediately!

【…】

While the four-dimensional beings were still arguing, the neutron fortress disappeared into the universe once again.

boom!

boom!!

boom!!!

With each unexpected impact, a large number of complex three-dimensional structures appeared on the battlefield like rain.

Every three-dimensional structure is a remnant of those four-dimensional beings!

Bypass the neutron fortress and proceed directly to the final plan!

For the sake of a pastoral era!

As the war turned one-sided, an encrypted tachyon message appeared in the minds of all the remaining four-dimensional beings.

……

[Time] My heart sank.

We've finally come to this point.

It subconsciously turned its head to glance at the spot where [Silk] had left, and then, with mixed feelings, followed the other six four-dimensional beings toward the central black hole of Andromeda!

They ignored the neutron fortress's attacks and even abandoned any defensive measures!

At this point, the neutron fortress also revealed its biggest flaw.

The five-dimensional leap technology is only a semi-finished product. The leap distance is very short and it is not enough to catch up with the four-dimensional beings who are "escaping" with all their might!

Although it was unclear what these four-dimensional beings wanted to do, the Sweeper fleet went into a frenzy as they watched them approach the central black hole.

but……

It's too late!

Just as they were about to reach the event horizon of the black hole, the seven four-dimensional beings simultaneously detonated their cores.

Having lost their core, the four-dimensional beings simultaneously began to experience dimensional reduction under the assimilation effect of three-dimensional space!

An endless stream of energy and matter erupted near the black hole!

At this moment, the region of the black hole at the center of the Andromeda Galaxy was as if a cataclysmic collision of galaxies had occurred!

The once stable black hole is transforming into a quasar at an extremely rapid pace!

Thanks to the meticulous calculations of the four-dimensional beings, the two black hole jets emitted by this soon-to-be-formed quasar will sweep right over the ring-universe accelerator node built by the Cleaner civilization nearby!

Moreover, they will sweep across more than 80% of the Andromeda Galaxy!

It is no exaggeration to say that this will directly destroy the entire Andromeda Galaxy!

P.S.: Thanks to Tenth Art for the amazing certification!

That's awesome!

Ahem, there's one more thing. There was a small error earlier. The location of the membrane is in five-dimensional space, not five-dimensional spacetime. I'm correcting that here.

At last.

Tomorrow is the National College Entrance Examination (Gaokao). I wish all candidates the best of luck and hope they get into their dream universities!