[Registrar: Your Majesty, 100% of the Age of Chaos and 81% of the Iron Age have been developed, and the requirements for upgrading to the Age of Magic have been met, is it to be upgraded immediately, yes?] Not? 】

After Yi Fei returned to Chang'an City, he began to work on the matter of upgrading the fortress, and as he gave the order in his heart, a system dialog box popped up in front of his eyes.

Looking at the content of the dialog box, he couldn't help but hesitate, the technology of the Iron Age has not yet evolved to 100% to the Age of Magical Energy, will it cause some technologies to be unable to be developed? Thinking of this, he remembered the definition of civilization on the other side of the earth given by the wish elf when he returned to the earth, and couldn't help but ask in his heart with some concern.

With the explanation given by the system, he understood that as long as the R&D degree of science and technology in the previous era exceeded 80%, it could evolve to the next era, and it would not cause the technology of the previous era to be unable to be developed.

After understanding this, Yifei was relieved and said in his heart: start upgrading. Suddenly, a series of system dialog boxes popped up in front of his eyes.

[Clerk: Congratulations, Your Majesty the King, your empire has been promoted to a third-class kingdom. 】

[Clerk: Congratulations, Your Majesty the King, your empire has been promoted to a third-level kingdom, and your strength will automatically be upgraded to emperor-level combat power. If it is detected that your strength has reached the Emperor level 1 star, your strength will be directly increased to the Emperor level 6 stars. 】

[Registrar: Congratulations, Your Majesty the King, your empire has been promoted to a third-level kingdom, opening the technology tree of the Age of Magical Energy. 】

[Clerk: Congratulations, Your Majesty the King, on opening the Tech Tree in the Age of Magical Energy.] The civilization of the empire has crossed from the Iron Age to the next era, and you can get a mysterious reward. 】

[Clerk: Your Majesty the King.] You can choose one of the following two options as your reward, Space Battleship. Biochemical warships. 】

After reading the contents of all the dialog boxes that popped up in front of him, Yifei found that after the fortress was upgraded to three stars, the benefits he obtained were similar to those when he was upgraded to two stars, and there were still only 2 that could immediately see the actual results.

One is the aspect of personal strength improvement, the improvement of five small stages, which allowed him to save a lot of glory points; The other is the mysterious reward, which one is better, the space battleship or the biochemical battleship?

Looking at the choices in the dialog box in front of him, Yifei was a little embarrassed, space battleships and biochemical battleships. He liked both, and he didn't know what to choose for a while.

Star Space Battleship: Small space mechanical combat ship with a capacity of 3,000 people, 1 large energy cannon, 15 medium energy cannons, 160 small energy cannons, 200 missile launchers, meteor-level protective shields, and 1,000 mechanical battle armors

Star Biochemical Battleship: A small space biochemical battleship. The capacity is 2,000 people, 1 large energy cannon, 10 medium energy cannons, and 240 small energy cannons. 300 missile launchers, meteor-level protective shields, and 2,000 biochemical war beasts

Yifei looked at the introduction of the two types of warships in the system dialog box. I thought back to the setting of the era after the fortress was upgraded to 4 stars. It didn't take long to know the difference between the two. One of them should be a battleship of the technological age, and the other is a battleship of the biochemical age.

Come to think of it. He suddenly asked in his heart: the system, the given battleship are all accompanied by pilots and combatants?

[Clerk: Your Majesty, Your Majesty, the ships presented are accompanied by pilots and combatants.] 】

After receiving a positive reply from the system, Yifei immediately made a choice in his heart, the space battleship he directly selected! The reason for this is very simple, there are more people in the space battleship, and there are more than a thousand people who have mastered the knowledge of four-star civilization. Although there are more than 2,000 biochemical war beasts in the biochemical battleship, what he values more is the extra 1,000 people who have mastered the knowledge of four-star civilization!

As the selection was settled, a system dialog box popped up in front of his eyes.

[Registrar: Your Majesty, you have not yet established a spaceport, and the reward ships you have received cannot be used for daily resupply, please build a spaceport immediately, or designate a dock as a supply base for the ships.] 】

Looking at the system dialog box that popped up again in front of him, Yifei directly selected a dock on the mainland where Chang'an City was located, and set it as a supply base for space battleships, and immediately the map in front of him automatically changed to that dock, and then he saw a sky battleship appear in the dock.

Looking at the space battleship on the map, Yifei found that its shape was like a triangle, and its size was not ordinarily large. The assault ships, battleships, and so on moored in the dock looked like a flock of chickens standing next to an elephant.

Immediately he understood why the system reminded him to prepare a dedicated docking and supply base for the space battleship.

At this time, looking at the space battleship in front of him, he was a little puzzled, why is the crew of such a large battleship only 3,000 people? According to its size, it is enough to accommodate tens of thousands of people.

But soon, his interest shifted, and at this time he was more interested in the mechanical armor inside, are these mechanical armors often mentioned in science fiction novels?

Thinking of this, his mind moved, and he immediately saw a group of mechs flying out of the space battleship moored in the sea on the map. Looking at those mechs the size of heavy trucks, Yifei understood why the space battleship in front of him had a capacity of only 3,000 people, and it was really so big. At the same time, he also felt a little disappointed, the mecha in front of him was a little different from what he imagined, too bulky!

But when he thought about it, the technology of the 4-star fortress, according to the division given by the system, was just the technology that had just entered the space age, and he was relieved. At this time, he selected a mecha and wanted to check the attributes, and suddenly a attribute box appeared in front of his eyes.

Star Mecha Warrior: Equipped with a mechanical armor made of special composite metal, equipped with 1 small energy cannon, 1 medium energy gun, 1 small energy gun, a laser sword, and an energy shield

Looking at the content displayed in front of him, Yifei's heart moved, and suddenly the content in the interface box in front of him changed.

[Scrivener: Your Majesty, compared to your current technological era, the strength of this unit can be estimated using the following data: 3oooo for health, 5oooo for attack, and 2oooo for defense.] 】

I'll go, this is typical of space cannon fodder! Looking at the attributes of the mecha warriors estimated by the system in front of him, Yifei couldn't help but feel very disappointed. Although its attack power is high, its defense and health are too low.

At this time, he remembered the last time he saw the battle - the battle between the Baili family and the two mechanical warriors under the command of the old witch, and the attribute values of those units, he couldn't help but be very disappointed.

Hey, the troops in the era of science and technology have this strength, do they really have to wait for the fortress to be upgraded to five stars before they can enjoy a peaceful life? Thinking of this, the joy in his heart that he had just been promoted to the era of demonic energy disappeared without a trace.

After a year or two of continuous wars, one powerful enemy after another appeared, which made him a little tired, and at this moment, a system dialog box suddenly popped up in front of his eyes.

[Clerk: This is a nightmare, Your Majesty, your army has been severely defeated on the battlefield and almost completely wiped out]

I'll go, and almost all of them will be destroyed! Looking at the content displayed in the dialog box in front of him, Yifei couldn't help but be stunned, and couldn't help but hurriedly said in his heart: Show the location of the army that has just been defeated!

At present, the army he sent is only eight ways, and the defeat of any one way will make the current situation change in a bad direction! Therefore, he very much wanted to know what went wrong and whether there was any way to remedy it.

As the order was given in his mind, a map appeared in front of him.

I go, how could it be here? Looking at the map that appeared in front of him and directly located the place of death, Yifei couldn't help but wonder a little. When he had left, he had asked Ji Fa about it, and he had learned from Ji Fa that they would not have any problems there—who would be defeated by their own food?

But it's only been a long time, but in half a day, the entire army has been almost wiped out, what has happened? (To be continued.) )