Cataclysmic Era: I can unlock the tech tree

"one two three……"

Lu Yongchang's lips moved slightly as he silently counted the number of two-dimensional warships.

"……ninety!"

"Good!" Lü Yongchang relaxed slightly, his eyes gleaming, and shouted, "All hits!"

Two-dimensional fragments are ultimately high-risk weapons. Without the protection of stabilization devices, they become extremely dangerous time bombs!

Who knows where it will drift to due to inertia, and then suddenly explode!

After the Proxima Centauri incident, Lü Yongchang was somewhat wary of similar things, fearing that he might accidentally cause the same blunder again!

"Professor, the comparison process is complete."

"In this attack, a total of 6 enemy secondary flagships were hit and destroyed, with 0 remaining."

"A total of 4 enemy large warships were hit and destroyed, with 10 remaining."

A synthesized electronic voice came from the side.

Lü Yongchang nodded in satisfaction.

Although the flagship of the Bosa civilization was not destroyed, this result is enough!

The remaining large warships can be slowly worn down by the [Golden Crow] fleet alone!

As for that flagship...

A glint of light flashed in Lü Yongchang's eyes.

We also need to launch a two-dimensional fragment!

However, with these defenses in place, these two-dimensional fragments were not easy to hit the enemy ship.

Just as Lü Yongchang was pondering a solution, a loud, piercing sound came from the loudspeaker, making Lü Yongchang's body tremble slightly.

He looked up at the translated text in the holographic projection.

"Dimensional attack!!!"

"Lord! That's a dimensional attack!!!"

Commander Bosa's composure vanished completely, and he shouted at the camera with a look of terror on his face, "Damn it, you're not a Level 4 civilization!!!"

"You..." Commander Bossa's eyes were practically overflowing with panic, "You're the pastoralists!!!"

Lü Yongchang's eyes flickered slightly.

"Um?"

"You know about the pastoral school too?"

Commander Bosa ignored Lü Yongchang's questions, only repeatedly gesturing a circle in front of his chest with his two pairs of forelimbs, chanting, "Lord, Lord..."

"Your Lords don't seem to care about your lives," Lü Yongchang said in a deep voice, staring at the holographic projection. "They haven't even told you the truth."

Even so, you must still be civilized for the cleaners...

"Shut up!!!" A shrill scream came from the loudspeaker.

In the image, Commander Bossa is swinging his slender body dramatically while raising his two pairs of forelimbs in front of his chest, seemingly making some threatening gesture.

"It is our honor to be faithful servants of the Lord and to offer our lives for Him!!!"

Lu Yongchang frowned and shook his head speechlessly.

"The Bosa civilization is now completely finished."

He gave his assessment: "Zero, prepare to cut off communication."

The piercing screams continued.

After discovering that human civilization had launched a dimensional attack, these giant stick insects seemed to fall into a strange state of frenzy. They jumped around in front of the camera with incredible fervor, while chanting loudly in a strange tone.

"The commander knows all the information!"

"Loyal servants of the Lord will track dimensional fluctuations!"

"Human civilization, you cannot escape it!"

"Cut off communications!" Lu Yongchang issued the order with a grim expression.

The holographic communication interface disappeared instantly.

But the crazy antics of those large stick insects still lingered in Lü Yongchang's mind.

"Professor, I request permission to launch another dimensional strike against the enemy ships."

Zhao Zijie's voice came from the side: "We need to end this battle as soon as possible!"

With a gloomy face, Lü Yongchang tried his best to suppress the terrible thoughts in his mind and said in a deep voice, "Do as you say."

"However, after that round of attacks, the enemy is probably on guard against the two-dimensional fragments."

"The second attack won't be easy to land. Do you have any ideas?"

"Use the Golden Crow."

Zhao Zijie was silent for a moment, then suddenly spoke.

"What?" Lu Yongchang didn't understand the meaning behind Zhao Zijie's words for a moment.

"Place the [Dimensional Strike Ship] inside the [Golden Crow]'s cabin, get close to it, and then attack," Zhao Zijie explained softly, pursing his slightly pale lips.

Lü Yongchang's expression changed several times: "This..."

"Once the two-dimensional fragments erupt, the [Golden Crow] will inevitably be unable to escape..."

"Professor, these sacrifices are essential for victory in the war."

A strange glint flashed in Zhao Zijie's eyes: "The order has been issued."

"They have already set off."

silence.

A long silence.

"call……"

Lu Yongchang exhaled a long breath and then spoke in a hoarse voice.

"They are heroes."

"All the soldiers who died in this war are heroes."

"After the war, a monument to the pioneers of human civilization will be erected."

"Human civilization must never forget them."

Zhao Zijie's eyes reddened slightly, and he nodded with an extremely solemn expression.

……

The war has entered its final stage.

Under the siege of countless Golden Crow battleships, the Bosa fleet was filled with bursts of explosions and flashes of light.

Of course, the Golden Crow warship also suffered great losses under the attack of the enemy flagship.

Under everyone's watchful eyes, one of the [Golden Crow] battleships quietly broke away from the formation and, under the cover of the other [Golden Crow] ships, gradually approached the enemy flagship.

Perhaps because they were blinded by rage, these stick insects failed to notice the strange behavior of the "Golden Crow".

By the time they spotted it, the Golden Crow had already reached the warning zone!

With a burst of intense gamma rays, the antimatter engine erupted in a massive burst of fire, propelling the Golden Crow straight toward the Bosa flagship!

The Bosa flagship had no time to dodge and could only aim its hastily charged antimatter main cannon at the Golden Crow.

boom!

Under the impact of the antimatter torrent, violent explosions began to appear from the head of the Golden Crow.

It's too late to say.

Amidst the endless explosions and flames, an unprecedented flash of light erupted.

This flash of light illuminated the entire battlefield in an instant and suppressed the energy of matter and antimatter annihilation!

The light slowly faded.

A piece of paper with no thickness floats slowly in the starry sky.

Watching the annihilation reaction still unfolding in the paper, Lü Yongchang slowly raised his right hand and gave a salute to the starry sky, a salute unique to the human fleet!