Doomsday Simulation: This Is Not a Game

Chapter 25 System upgrade!

Next is the site treatment on the ninth floor!

Because he was worried that birds would attack in the sky outside at any time, Song Han planned to seal all the external windows with glass, leaving only two openable windows in the north and south for ventilation.

But during the actual operation, he discovered that his glass can only be exchanged for ordinary glass under the current lack of minerals, and cannot be upgraded to stronger tempered glass!
"Ordinary glass will definitely not work. The thunderstorms in spring and summer, the strong winds in autumn, and the severe cold in winter may cause the glass to shatter directly and lose its effect."

After much deliberation, Song Han couldn't think of a solution. In the end, he had to continue to exchange steel for blinds one by one, so that at least part of the light source could be guaranteed while ensuring safety!

As for the windows on the northwest side, Song Han took the pickaxe and went downstairs to dismantle a few offices, and then except for the one that was left for ventilation and installed shutters, the rest were exchanged for cement + remaining steel plates Out of the steel and concrete sealed, good to use against the autumn wind!

In this way, the safety of the ninth floor is more or less guaranteed.

Although this method is simple and rude, and the lighting for the plants is not very good, and the shutters cannot completely block the strong wind outside, but for Song Han at this stage, these things are already the best choice!
After all, protecting these plants is the first priority!

He doesn't want all the plants he's worked so hard to grow to be pecked by birds outside, or destroyed by storms and other things!
As for the later upgrades, I have to wait until I have enough resources before I can continue to improve. For example, setting up an insulation system to make the entire ninth floor look like a vegetable greenhouse, and then using lights for lighting, so that I can eat vegetables in winter !

But if this is done, the resources required are also massive.

For example, while tempered glass is required, an additional insulation layer should be installed on the wall, and a ventilation system should be installed separately on the ninth floor to ensure that the ninth floor can have better air circulation without losing internal heat.

And Song Han doesn't have much steel in his hands now, so where can he get the resources to carry out such a large-scale renovation of the site? !

"It still needs a lot of resources. And now I can only pray that the lightning rod upstairs will work. I don't even have enough materials to exchange for the lightning rod."

While thinking about this, Song Han put down a new decomposition machine directly on the ninth floor, and began to pack up all the sundries on this floor and decompose them to free up the space, and then started to build plants for planting. Need the planter box too.

It is still surrounded by long wooden boards, and then the bottom is also closed with wooden boards and then placed on bricks to lift the entire planting box, and then small holes are evenly cut out on the bottom wooden boards for the mud heads and plant roots. Breathable and breathable, and a layer of coarse cloth was exchanged for the bottom, on the one hand to prevent the water from being lost directly from the small holes, on the other hand, a layer of breathing layer was made on the bottom of the planting box to ensure the air circulation at the bottom of the soil!
In this way, a simple but effective enough large planter box is ready!

For a whole spring month, Song Han was busy building his doomsday fortress.

The ninth floor is neatly covered with planting boxes, and climbing frames have been set up on the sides of some planting boxes.

The soil was dug out by Song Han after he dug up the concrete walls on both sides of the underground municipal sewage pipe.

He set up a new decomposition machine directly outside the underground iron gate, and immediately threw the excavated soil into the decomposition machine to be turned into excellent planting soil. In the planting box, and water thoroughly.

Due to the lack of resources, Song Han didn't dare to plant too many things. He just chose two planting boxes and planted the soaked pumpkin seeds he brought back, and planted some lettuce and Chinese cabbage in the other.

These things are relatively durable, and they can also be fed to rabbits after they grow up.

Probably because of the plant variation, these things really grow very fast. It took only a few days for the seeds to sprout and break through the soil. The appearance of stretching the leaves looks very gratifying!

Especially lettuce and cabbage, which are not seasonal plants, don’t need to mature until the autumn moon like pumpkins. According to their current growth situation, this batch of lettuce and cabbage will be mature by the end of the month. up!

And then there's the question of security in the building as a whole.

Song Han knocked off all the ceilings on each floor, and then exposed the various pipes and pipelines hidden on the ceiling.

He first removed all the pipelines, and closed all the entrances and exits of the originally reserved pipelines, so as to ensure that there would be no safety omissions in this building;
He also cut off the wires connecting the lamps, so that they can be directly connected to the power gates on each floor with a new circuit system when the circuit is rebuilt in the future.

The windows on the second floor were originally blocked by people using various cabinets, sofas and other sundries. Song Han threw those things into the decomposition machine, and at the same time used the materials he dug up from the upstairs office to continue to seal the windows. All the windows on the second floor were removed, except for a small window with a steel-concrete structure on the upper part and a steel plate window pushed from the bottom to the outside in each direction, to spy on the surrounding movement.

The window is very small, and Song Han specially restricted the opening arc of the window. It can only be opened by a maximum of five centimeters before it will be stuck by the steel-concrete structure above, and it cannot be opened any further.

The foundation of the bank building was originally high, and there was a row of six-story steps on the outside of the lobby on the first floor, so you only needed to open a gap on the second floor to see a lot of movement on the street outside.

As for if you want to see more, just go upstairs and watch it. For safety reasons, the windows on the second floor cannot be opened too much.

After all, it is only the height of the second floor, so it can be easily climbed up.

As for the third floor, the same is true. The windows in all directions are blocked with steel concrete, leaving only two shutters for light transmission and ventilation.

And the rabbits brought back by Song Han on the third floor also survived tenaciously by relying on the various weeds brought back by Song Han, as well as some plantains that were originally planted here, and brought two new litters to Song Han. bunny.

I have to say that the adaptability of this thing is really fast, and the growth is also really fast.

In just one month, a few of the rabbits here have completed pregnancy and childbirth, and by the end of the spring moon, those newly born rabbits have already started running all over the ground!
And Song Han also pulled out all the messy plants that were originally planted here, and replaced them with plantains. After that, he took some seeds from the mature Chinese cabbage upstairs and made a new one. The boxes are used to grow food for these rabbits.

From the current point of view, at least in a short period of time, it seems that there is no shortage of meat.

It's just that flour is still a one-time consumable, and Song Han still needs to find a sustainable source of staple food!
Song Han also gradually cleaned up the three-story debris that was used to block the external stairs.

It’s just that the practice of blocking the stairs with sundries is a big safety hazard, even if you are downstairs, you can clean up these things little by little and then open the entire external staircase passage!

Therefore, Song Han did not continue to clean up the debris when he cleared the stairs to the turntable on the first floor, but directly made a reinforced concrete wall to block the entire staircase from the first floor to the second floor!
After sealing up the elevator shaft on the second floor with the remaining resources, Song Han's steel and concrete resources were officially exhausted!
But at the same time, Song Han also completed the transformation of the entrance and exit of the entire bank building, and blocked all other passages that might lead to the outside world!

So far, Song Han's doomsday fortress renovation plan has been officially completed as the resources in his hands have been exhausted, and the first phase of the renovation plan has been officially announced!

All entrances and exits are blocked, leaving only one internal access door and one underground passage door to enter and exit the building;
All the external windows below the third floor have also been blocked.

Unless I made a huge commotion inside the building and caused a zombie siege outside, and then the zombies piled up and rushed in through the windows on the fourth floor, this building is absolutely safe!
As for the plan to close the outer wall above the third floor, due to the lack of resources in Song Han's hands at the moment, he is really helpless now. He can only stay here and try not to attract the attention of the zombies outside, and wait until he has collected enough resources. Then complete the renovation of this building.

At the end of the spring moon, besides the pumpkins, the second batch of lettuce and Chinese cabbage had already been planted on the ninth floor, and the harvested vegetables were directly thrown into the cooking table by Song Han to make a convenient food storage. In your own system backpack.

The Rabbit Kingdom on the third floor also looks thriving.In order to control the number of rabbits and ensure the food supply of the rabbits, he threw all the male rabbits into the cooking table except for a few male rabbits that looked more robust for breeding. Some of them were synthesized with flour and made directly. Some buns made of rabbit meat were made into several shelves by him, and the processed rabbits were hung on the shelves for air-drying, so as to facilitate long-term storage!
That is to say, from now on, Song Han's crude version of the doomsday fortress has also officially completed its own internal ecosystem!If there were no accidents, it would be an easy thing for Song Han to persist here for a year or so!
If he is more cautious, Song Han can even hang out here forever!

[Congratulations on surviving in the game for a month and unlocking the achievement 'Getting Better'!Please choose one of the options below as your reward! 】

【Congratulations on setting up your first safe camp in the game and unlocking the achievement 'Stand Firm Foothold'!Please choose one of the options below as your reward! 】

[The system store level has been raised to LV2!]

(End of this chapter)