Voyage of the Stars.

Chapter 694 Comprehensive upgrade
After bombing the planet, the Lyra turned around and left. Other mining ships would come to mine, or directly push the rocks away with thrusters like capturing asteroids, or drive smelting platforms nearby, or directly release small ashes for nano-mining.

No matter which method or methods are used, this mining method is much more efficient than driving a spacecraft into the interior of a planet and digging slowly.

This kind of mining method was unthinkable in the past, and the power of the fourth-level civilization was fully demonstrated here. Seeing the scene of the entire planet exploding, some old people couldn't help but recall the silver mist that humans encountered when they set foot in the starry sky. If they had this method at that time, they could have destroyed the silver mist with one shot.

However, after bombing this planet, the Tianlya turned around and headed for other planets and continued bombing them. Any planet that was favored by humans would inevitably be smashed to pieces by a single bomb and turned into space mines.

Of course, the Tianqin did not continue to destroy recklessly. After bombing five planets, it probably met its resource needs, so it stopped temporarily. Yes, only temporarily, because humans at this time had not yet completed the upgrade of the fourth-level civilization creation, so space transportation capabilities had not yet been fully utilized.

For this reason, the first step for humans after mining and obtaining resources is to build new production and transportation tools on a large scale, that is, transport ships, mining ships, engineering ships, etc. with warp speed capabilities. After building these, they will continue to expand the scale of mining and continue to improve the efficiency of resource acquisition. Only then will they enter the stage of upgrading residential spacecraft, biosphere spacecraft, large equipment transport ships, etc.

As for the obsolete residential spaceships, humans will not discard them. Instead, they will be pulled back to the dock for modification, equipped with warp engines, and then given to several subordinate races such as the Red Flame Civilization and the Kuntai Cluster for use as residential spaceships.

As a subordinate race and a vassal civilization, it is reasonable for them to live in a spaceship that is smaller than that of humans. Of course, individuals of the subordinate races who have made contributions to science will not be stingy and will also be given spacious new fourth-level civilization residential spaceships as their homes. Moreover, such living conditions will be promoted in the society of each of their races. The purpose is naturally self-evident.

It is to let them understand that only by working hard to make scientific contributions to the entire group can they have better living conditions.

Who doesn't yearn for better living conditions? When you are still living in a small spaceship that uses rotational inertia to simulate gravity, when you are still living in a room composed of cabins, others have already boarded the spacious fourth-level civilization spaceship. There is no use in envy. Only by working hard to contribute to the collective can you enjoy this environment.

This difference in living environment will, to a certain extent, motivate the efforts of other races, which will be beneficial rather than harmful to the entire human civilization cluster.

In the comprehensive upgrade plan for creations, humans will not only upgrade the creations of their own civilization, but will also take other races into consideration. After all, they still need to travel through the universe with humans, and their third-level civilization-level spacecraft must be upgraded and modified to keep up with the main force.

However, the creations of other races will be upgraded later. Humans will first fully upgrade their creations, arm themselves to the teeth, and then consider subordinate civilizations and subordinate races.

Time in the starry sky always passes quickly. After the Tianqin blasted a star to pieces, the great construction era was measured in centuries. After several centuries, humans finally completed the upgrade of various ships of this civilization.

Then, it took several centuries to build 2,990 planetary warships connected by the "consciousness synchronization" equipment. These warships will be the most elite fleet of mankind together with the Tianqin. Although they are not completely manufactured according to the high standards of the Tianqin, their main frame structure also uses some strong materials. There is no way around it. The production of strong materials is too difficult. If they are all manufactured according to the standards of the Tianqin, then it will take at least 10,000 years to complete the construction of 3,000 warships. The time cost is too high and the gain is not worth the loss.

If completing the upgrade of spacecraft such as residential spacecraft, engineering ships, mining ships, biosphere spacecraft, and scientific research ships means that human life and production have reached the fourth-level civilization level, then the appearance of these 2,999 warships is a sign that humans have officially possessed the fourth-level civilization combat power.

And that's not all. A mere 3,000 planetary battleships cannot meet humanity's security needs, so humans will continue to build new ones. They will also be planetary battleships, but they will be ordinary planetary battleships without "consciousness synchronization" equipment.

The human plan at this stage is to build a fleet of three million planetary warships, which are still divided into three fleets, namely the first fleet led directly by Tianqin, the second fleet led by Jupiter, and the third fleet led by Saturn.

Yes, Jupiter and Saturn.

These two battleships were planned to be built when the batch of 2,990 battleships was produced. They were specially designed as flagships for the Second and Third Fleets. Their performance configuration is actually similar to that of other battleships in the same batch, except that they have many more equipment for overall command.

Because the manufacturing time cost of strong materials is too high, these two warships cannot be equipped with star destroyers like the Tianqin, because the structural strength does not allow it, so they can only settle for the second best and install large neutron kill/neutron explosion as the main gun. Of course, other weapons such as gravity bombs and warp missiles are also available.

As of now, due to the time cost, humans can only have one star destroyer.

As for why there are only three million other ordinary warships, the main reason is actually the time cost of shipbuilding.

The planetary battleships of a level-four civilization are much more complicated than those of a level-three civilization, and the amount of resources consumed in shipbuilding is also exponentially increased. Even with fully automated production, the time cost issue brought about by the complicated process cannot be ignored. Therefore, unless a level-four civilization has existed for a long time, there will generally not be too many planetary battleships.

From this perspective, the fleet of a level 4 civilization is actually much smaller than that of a level 3 civilization, but the small number is only temporary, because time will increase everything, and the small number does not mean weak combat effectiveness.

Humankind stayed in this binary star system for almost another thousand years before completing the creation and upgrading of various Level 4 civilization creations. After completing all this, there were basically very few rocky planets left in the entire binary star system, and even the gas planets had shrunk somewhat due to years of absorption of hydrogen, helium and other elements.

(End of this chapter)