Doomsday: My Shelter Unlimited Upgrades

"Name: Simple Ventilation System (Common)???"

"Introduction: Very simple ventilation system, not even ventilation."

"Evolvable branch 1: Function expansion: open the ventilation hole on the ceiling of the shelter, and install a rain cover on the ventilation hole, the ventilation efficiency is greatly improved, and the stability is greatly improved. Consumption of survival points: 30"

"Evolutionable Branch 2: Material Enhancement: The ventilation system is strengthened to stone, but it is still not ventilated, the ventilation efficiency has not been improved, and the stability has been greatly improved. Consumes 10 Survival Points."

Sure enough!

Lin Tian looked at the system panel in front of him with a look of surprise on his face.

Without a trace of hesitation, his consciousness clicked on evolutionary branch 1 in an instant.

Since Lin Tian provided enough stone materials nearby, the specific strengthening did not consume 30 survival points.

With just 15 survival points, the strengthening was completed.

After completing the strengthening, Lin Tian squatted beside him and observed carefully, exclaiming in his mouth.

It was exactly the same as the ventilation system he had imagined, perfect!

After gaining the experience of the first one, Lin Tian quickly ran to the other three holes.

Repeated tricks.

Soon, the remaining three simple ventilation holes were also built, consuming a total of 65 survival points and [-] units of stone.

Now, the strengthening work of the refuge has been completed.

However, the preparatory work for the acid rain disaster is not complete.

Although the system predicted that there would be acid rain tomorrow, it did not specify how long the acid rain would last.

One hour, two hours, half a day, or even three or five days.

These are all possible.

Food must be prepared and stored in advance.

Opening the system panel, Lin Tian found the biological illustration panel.

Not for querying creatures, but for using the scan function.

The scanning function can only be used once a day. Lin Tian didn't use it a few days ago, but it didn't accumulate, and the number of times it can be used is still once.

This made Lin Tian feel at a loss.

Tap lightly, and the screen that has been seen once appears again.

Like the ripples that appear when water droplets enter the water surface, they sweep across the map of the surrounding kilometer.

Soon, dozens of red dots lit up, and Lin Tian's eyes lit up.

I haven't searched for a few days, but I didn't expect that there are so many creatures nearby.

Either it can bring meat food, or it can burst treasure chests. These red dots are all rare resources.

Lin Tian clicked to view one by one.

But unfortunately, there are no new species among them.

All of them are forbearance chicks!

However, this is also in line with the laws of biology.

The higher the organisms on the food chain, the more energy they need to survive, which also leads to their number not being huge.

Only omnivorous animals such as tolerant chickens, creatures that can obtain energy from plants, will have a large population.

After closing the system interface, Lin Tian raised his lips slightly, and a light and bright whistle sounded.

Not far away, a white figure ran over.

It was Erbai.

After straightening Erbai's soft white hair, Lin Tian took out a compound bow that had not been used for a long time from the warehouse.

Walk towards the red dot closest to him on the map.

Goal, forbear the chick!
With Erbai's assistance, Lin Tian's hunting was even more powerful, the sky was dark, and the red dots on the map were wiped out.

Lin Tian originally wanted to go to a further distance to explore, but considering that it was getting late and there were dangerous unknown creatures everywhere.

He still gave up the thought of dying.

Using the wooden spear as a shoulder pole, Lin Tian and Er Bai returned to the shelter by carrying the Yin Ren Chick, which weighed forty to fifty catties.

Looking at the more than 20 forbearance chickens in the corner, a smile appeared on the corner of his mouth.

These chicks can at least guarantee that they will not go hungry for a week.

Forbearance chickens are not fast, and because of their personality, they will bury their heads under their wings first when they see danger.

Forbearance.

Therefore, hunting them did not consume much physical strength of Lin Tian.

After plucking all these forbearance chicks, Lin Tian put them into the warehouse.

If it is placed outside, there is a risk of deterioration, but if it is placed in the warehouse of the system, it will not be at all.

Now in Lin Tian's warehouse, in addition to 45KG chicken, there are also a lot of bread and sausages.

In the refuge, the lettuce planted a few days ago has also sprouted small green shoots.

Under normal circumstances, lettuce will germinate within 7-10 days after sowing.

But now, in just two or three days, the buds have sprouted, and they look extremely strong.

It must be his psychic water that played a role.

According to this progress, maybe within two weeks, I will be able to eat fresh, green vegetables.

Lin Tian smiled, and took the seeds of tomatoes and green onions out of the warehouse.

Tomatoes are sown in the middle layer, and green onions are sown in the bottom layer.

After planting the seeds, he took out the spiritual water and watered them, and he prepared dinner for himself and Erbai.

After doing this, he climbed into bed.

But, no rest.