It had been a week since the Deep Sea Behemoth Civilization was wiped out, and during this week, Lin Feng and the commander of the Immortal Civilization had been constantly encircling and suppressing the monsters that had lost control.

Since the deep sea giant beast civilization was wiped out, and three of the five large monsters were successfully killed, the remaining two large monsters fled back to the deep sea with about three hundred small and medium-sized monsters, and also went ashore from time to time to destroy the buildings of Lin Feng's immortal civilization to retaliate. In desperation, Lin Feng could only ask the second scientific research group of the scientific research institute on the development of war robots to speed up the research of deep-sea combat robots.

On the fourth day from the destruction of the deep-sea monster civilization, the second scientific research group finally developed a deep-sea combat robot, which is a large war robot that looks like an octopus, equipped with a nuclear-powered kinetic energy cannon, this nuclear-powered kinetic energy cannon is installed in a vertical form in the body of the octopus-type robot, the muzzle is surrounded by six steel giant claws, and after closing the claws, the octopus-type war robot looks like a conical warhead more than 30 meters long from the outside.

And these six giant claws are developed by the scientific research team by imitating the material of the god-killing warhead, although it is not as good as the god-killing warhead, but it is no problem to deal with the middle and lower type monsters, and the octopus cone round head is also installed with an energy weapon absorbed from the silica civilization - X laser weapon, which is already a high-level conventional energy weapon in the silica civilization.

Of course, the cost of the war robot developed with so much effort is definitely not cheap, and the cost of an octopus-type deep-sea combat robot is almost worth one-third of the cost of a frigate, so the octopus-type war robot can not only fight in the deep sea, but also fight on land, and its power is not reduced.

After successfully developing a deep-sea combat robot, Lin Feng finally had the ability to fight back, and it took three days to successfully encircle and suppress all the monsters hiding in the deep sea. When Lin Feng killed the last monster, several game sounds appeared in Lin Feng's mind.

"Ding! The Immortal Civilization has been detected to fully occupy the initial half-plane..."

"Civilization Level Assessment..."

"Civilization Combat Power Evaluation..."

"Ding! At the end of the evaluation, the civilization index of the civilization level technology side is 0.9, and the civilization combat power is quasi-level 1. ”

"Ding! Congratulations to the Immortal Civilization players for completing the Hidden Conquest Quest and successfully occupying the initial half-plane of the birthplace and obtaining the hidden reward. ”

"Ding! Congratulations to the player for obtaining an evolvable world, and now the half-plane is now being transformed. ”

"Ding! Congratulations to the player for obtaining a Level 1 Primary World Coordinates. ”

"Ding! Congratulations to the player for earning 1,000 Battle Points. ”

"What's going on, little one?" Lin Feng, who was a little confused by the sound of several game prompts in his mind, hurriedly asked his game assistant Xiaoxiao.

"Congratulations, master." Xiaoxiao didn't answer, but narrowed his eyes into crescents, and congratulated Lin Feng with a smile.

"Don't congratulate, tell me what's going on?"

"This is the master, you have completed the hidden mission of the civilization conquest game! Now you have a world that can continue to evolve, and there are also the coordinates of a first-level primary world! ”

"That's it! All right! Let me be clear. Xiao Xiao looked at Lin Feng's dissatisfied expression and quickly changed his words and explained: "When you destroy the last head monster, the entire half-plane has no more life from other civilizations, only the master and your immortal civilization remain, which just meets a hidden battle mission in the game." These rewards can only be obtained by completing this hidden conquest mission. ”

"The world that can evolve is now this initial half-plane, after the transformation, this half-plane will become a zero-level world and can continue to evolve, as long as the master your civilization is stronger and the more resources you get, this world will also quickly evolve into a more advanced world."

"And the first-level primary world coordinates are because your immortal civilization has just completed the hidden conquest mission and the civilization level is close to the standard of the first-level civilization, so the zero-level world coordinates that should have been obtained have been raised to the first-level primary world coordinates."

"Oh! I see! I've always wondered why it's been more than ten days since the war exemption period ended, and the world coordinates that I should have obtained have not yet appeared, so that's why. After listening to the small explanation, Lin Feng also understood.

"Master, do you need to enter the first-level world now?" Xiao Xiao asked.

"Forget it, let's put it first, the territory has been destroyed by this group of monsters during this time, and it hasn't been repaired, and most of the resources in the entire half-plane have not been mined, and the new war robots are still being developed, and there are still many things that have not been completed, so you can't enter the first-level world in such a hurry, and send some reconnaissance robots to investigate the intelligence first."

Lin Feng cautiously gave his own thoughts to the novel, and now the world coordinates obtained have changed from level zero to level 1, for the immortal civilization that has not yet become a first-level civilization, it is still too dangerous to enter a strange first-level world without sufficient preparation.

"Actually, there will be no problems in the first-level primary world if you are careful." Xiaoxiao whispered in Lin Feng's ear.

"Let's be cautious! Wait for the reconnaissance robot to pass back the information about the first-level world, we can't be complacent because we have eliminated three zero-level civilizations. And I've been in the half-plane all this time, so I should go back to Earth to rest. Lin Feng touched his little head and said with a smile.

As soon as the war-free period ended, Lin Feng and the entire immortal civilization have been in a state of war, after fighting the gods of faith, then fighting with the silica civilization, and then the deep-sea giant beast civilization, and finally has been busy encircling and suppressing the fleeing monsters, it can be said that for more than ten days, Lin Feng has been in a busy state, and there is no rest for a moment, fortunately, now Lin Feng is no longer a flesh and blood life, but although it is not a flesh and blood life, but Lin Feng's spirit will still feel tired when he has been in this state.

"Tiny, let's go! Looking back on Earth, although I don't have to sleep now, I still miss the feeling of lying under the covers, and I want to go back to sleep and have a good rest. Lin Feng patted his little little head, said with a smile, and went straight back to the earth world after speaking.

Returning to his bedroom again, looking at the familiar things around him, Lin Feng's whole body suddenly felt relaxed, his hands raised and stretched, and Lin Feng walked towards the bedroom door.

Pushing open the bedroom door, Lin Feng suddenly saw a person sitting on the chair next to the table in the living room.

"Thief?" Lin Feng said with half suspicion, and then quickly walked towards the person sitting on the chair, and when he saw the figure clearly, Lin Feng said in surprise: "Why are you?" Why are you in my house? ”