In the blink of an eye, the one-month exemption period is coming to an end, Lin Feng is also fully committed to the base at this time, in order to cope with the upcoming end of the exemption period, Lin Feng is also crazy to climb the technology tree during this time, but the technological barrier from level zero to level 1 is not something that can be overcome in a short period of time, and it requires the accumulation and breakthrough of science and technology.

Therefore, during this time, the civilization index of Lin Feng's immortal civilization only rose by about 0.05, reaching a civilization index of 0.85, and the development was very slow.

Although nuclear energy is also the most basic way of converting matter and energy, it is the most simple and crude conversion of matter and energy, which can only play a role in research.

Of course, Lin Feng is not a scientist, so it sounds like he is very good at what can be converted, micro research, macro development or something, but in fact, Lin Feng himself knows a little about these things. However, although Lin Feng does not know this, he still knows that science and technology are the first development force, and the resources invested in scientific research are unremitting.

According to Section 1 and Xiaoxiao's predictions, according to the current development rate of the immortal civilization, it should be able to break through to the level of entering the first-level civilization within one year during this welfare period, and this speed should be very fast, and there is no danger.

From a small place, Lin Feng also learned that other civilizations need to face the barriers they need to face when they advance from level zero to level 1, and ask the civilization players of the Immortal Cultivation category to break through to the first level, they must go through the Immortal Thunder Tribulation, and the difficulty of the Thunder Tribulation is also big and small, it all depends on luck, once it can't be overcome, it will be the end of the destruction of the form and spirit. After surviving the immortal thunder tribulation, you will be able to condense the immortal body, have an endless lifespan, and become a powerful first-level lifeform.

Although players like the belief class god civilization are not as dangerous as cultivating immortals and asking for advanced levels, their barrier to advance from level zero to level 1 is more difficult, and they need to condense their faith, condense their divinity, and finally ignite the divine fire to cast a divine body, exalt the kingdom of God, and experience the test of the will of the world in which they live.

Therefore, although there is no danger for this type of civilization player to advance compared to the civilization player who cultivates immortals, it takes more time to accumulate, and the test of world consciousness is not something that anyone can pass, once they meet a player who is the same as their own priesthood, it will be more difficult, because a type of priesthood can only allow one person to be a god, so there must only be one person who can be a god, which leads to a fierce competition between the two.

There are many other different types of civilization players, and their ways of progression are also varied, but it is certain that it will not be as simple as that, so I won't explain them all here.

When Lin Feng knew the advanced methods of these cultivation civilization players, he was extremely glad that he did not blindly choose such a type of civilization, but chose the mechanical civilization on the technology side, and even more fortunately, he was able to steal the existing technology of the earth, so that the technology of his mechanical civilization could directly develop in a leaping way.

Of course, this month Lin Feng is not only climbing the technology tree, at the same time, Lin Feng is also constantly developing his armed forces, the army of war robots is still maintained at the number of 20,000, which can save energy consumption, but the arsenal and weapons manufacturing plant Lin Feng has been building, and has also fully upgraded it, the previous arsenal can only carry out the manufacture of five war robots at the same time, after the upgrade, it has been able to build ten war robots at the same time, and the technology will continue to be promoted in the future, The number of arsenals being built at the same time will increase.

Now Lin Feng already has three hundred arsenals and one hundred weapons manufacturing plants, which are distributed around the fifty bases that Lin Feng now has, by the way, Lin Feng Lin Feng now has fifty bases, except for one that is used by Lin Feng as the main base, the remaining forty-nine bases are distributed within Lin Feng's territory.

Today, Lin Feng's territory has expanded to the entire northeast region of the initial half-plane, which is equivalent to one-third the size of the territory of the Flower Planter.

In the event of a war, these bases can recreate a large number of arsenals very quickly, and the huge number of arsenals can "burst" hundreds of thousands of war robots in one day.

During this time, Lin Feng's Immortal Civilization also successfully developed a war building, Battleship Factory, that's right, this is a war building developed after absorbing the technology of [Deep Blue Civilization], which can build various types of warships, and warships equipped with the latest nuclear fusion energy device and anti-gravity system of the Immortal Civilization can travel in the endless space of the endless world, although the speed is very slow.

In the universe where Earth is located, these warships should be considered as interplanetary warships.

And these huge battleship controllers are the intelligent mental model robots of the immortal civilization, and the body made of nano matter is not bad, it is the ship mother, in the immortal civilization, the ship mother is in addition to scientific research robots, the highest degree of wisdom, and the ship girl that was created is the most powerful weapon in the entire immortal civilization, and they are a group of intelligent war weapons.

For nearly a month, Lin Feng has also continuously dispatched reconnaissance robots to continuously reconnoiter the civilization intelligence of the other two civilization players in this half-plane, and has also roughly obtained relevant intelligence information about his two neighbors.

These two civilization players are in the midwestern and southern regions of the half-plane respectively, and Lin Feng's territory is not yet bordering them, but according to the information reported by the reconnaissance robot, the territory of these two civilization players is about to border after a month of expansion, which is good news for Lin Feng, it is possible that these two civilization players will break out in conflict first, which is a very favorable situation for Lin Feng.

The civilization in the central and western regions, according to intelligence, is also a civilization on the technology side, but after nearly a month of investigation, Lin Feng knew that this civilization on the technology side turned out to be a silicon-based life form.

This is the first time Lin Feng has seen other types of lifeforms, their images are very similar to carbon-gray stone people, but it is undeniable that the technology of this group of silicon-based life civilizations is no less than Lin Feng's immortal civilization, and it should be a civilization force similar to Han Xing with the support of a national race.

And another civilization in the southern region is a faith civilization, the player of this civilization turned out to be a human being, Lin Feng was also very surprised when he first learned the news, because he must know that there are many worlds that have been chosen, and the earth world is just one of them. In this way, the odds of encountering a player who also belongs to the Earth are very small.

However, it was later discovered that this human player who looked like the earth was not a player from the earth world, but a civilization gamer from the fantasy world. Lin Feng actually wondered why there were humans in other worlds, wasn't this a creature like a human being a specialty of the earth?

Later, Lin Feng learned about this very ancient legend about an endless world from a young age.