Sanctuary, the hope of upgrading!

"Is it bound?"

It was only when the unfamiliar mechanical sound sounded for the second time that Su Mo came to his senses, and quickly responded:

"yes"

"Binding... progress 0.1%, progress 0.2%"

Lines of illusory green scanning light extended from Su Mo's feet and spread far away.

When the limit was reached, the light came back again, and the progress increased by 0.1%.

Taking advantage of the binding, Su Mo opened the wooden door and looked in.

Behind the wooden door is a ladder made of mud.

Going down the stairs and waiting until the silent count reached fifteen o'clock, the eyes suddenly became brighter.

With the help of the faint sunlight coming from the entrance of the cave, Su Mo could barely see the structure inside.

The overall floor and roof paved with wooden planks constitute a stable foundation, ensuring that this huge underground pit will not collapse.

"You made the right bet!"

Su Mo showed joy.

There are advantages to choosing the ground, and it can gain some convenience in the early stage of development.

However, he never forgot one thing. With the tools for making pages, it is not difficult to build a house on the ground.

But if you want to build a shelter underground, you need not only to rely on tools but also have enough architectural knowledge to ensure the stability of the underground structure.

Otherwise, if I dig indiscriminately, I'm afraid I won't even know how to die in the landslide at night.

Seeing that the binding progress bar of the doomsday survival system was still rising slowly, Su Mo simply sat on the stairs and opened the chat panel while conserving his energy.

Maybe, other people also have this so-called doomsday survival system.

First, I watched the world channel for a while, and then I turned on the regional channel and watched it for a while.

No one mentioned this.

"It seems that I am the only one with two systems?"

Su Mo came to a conclusion.

At this time, most of the speakers on the World Channel and the Regional Channel chose to take refuge above the ground, and only a few chose to go underground.

However, those who chose to go underground only complained about the tragedy of going underground and then began to communicate with each other to find supplies.

With no reference and no idea what it was, Su Mo could only continue to wait.

Fortunately, the improvement of the progress bar was very stable. After more than ten minutes, the green light finally stopped scanning. After returning to Sumo's body for the last time, a crisp prompt sounded:

[The doomsday survival system is successfully bound]

[First-time binding reward: 100 survival points]

[Scanning the living environment of the host, during the assessment of the survival points, 5 survival points were obtained today. ]

[In the final settlement, you have obtained a total of survival points today: 105 points! ]

[Remaining survival points: 105 points! ]

Following the sound of the reminder, a large piece of scattered memory was transmitted.

Originally, the doomsday survival system was a product that he could bind in the previous world. Unfortunately, the information was blocked at that time, and the country did not notify all the people to enter the shelter until the day before the disaster.

Naturally, he didn't have time to dig out his personal shelter, so he missed the system binding.

After coming to this world, if the survival game panel is a game panel that everyone has and can use, then the doomsday survival system is a modifier, and only Sumo owns it.

According to the post-apocalyptic survival system, every day you survive, you can get a certain amount of survival points.

Survival points are similar to points in the game and cannot be directly exchanged for items.

Its function is similar to the item upgrade function in the game, except that the upgradeable scope is more comprehensive.

As he learned more and more, Su Mo pressed the excitement in his heart and fixed his eyes on the crude underground survival base:

[Personal refuge]

Owner: Sumo

Space: 100㎡ (floor height 4.2m)

Completeness: 100%

Facilities: None

Introduction: An extremely rudimentary shelter,

Without any survival facilities, it can be regarded as a small tomb in the last few days at best.

Looking at the introduction on the panel, Su Mo's heart moved, and he turned his head to look at the only wooden door in the shelter.

[Refuge door]

Effect: slightly anti-theft, slightly anti-radiation

Upgrade Direction 1: Increase the thickness of the wooden door, increase the sturdiness of the wood, slightly fireproof and waterproof (10)

Upgrade direction 2: change the material, upgrade wooden doors to iron doors, and greatly increase durability and other attributes (30)

Evaluation: You don't want to live in the last days with a wooden door, do you?

After observing for a while, Su Mo barely figured out how to use the Doomsday Survival System.

In addition to purely relying on survival points to upgrade the system, users can also provide materials, which greatly reduces the survival points required for the upgrade plan.

For example, to upgrade a wooden door to an iron door, if he can provide 3 units of iron blocks and 1 unit of wood, the survival points required for the upgrade will drop to 5 points.

Survival points can be used as any substance, but the conversion efficiency is definitely not as good as the original substance.

So as long as enough similar substances are provided and the survival point plays a role of transformation and assimilation, the consumption can be greatly reduced.

After understanding the situation, the pressure of survival that had been weighing on Su Mo's heart was finally much less.

"I want to create a strong enough refuge before my parents and sister launch it"

"Before that, let's solve the material problem first."

Clenching his fist secretly, Sumo walked out of the shelter along the steps.

Drinking water and food are the primary concerns.

Fortunately, now that the survival system is in place, a general development route has appeared in Su Mo's mind.

First, he came to a small tree and used his own body weight to break the branch. After putting it in the inventory, a reminder came out.

[Wood+1]

Then Sumo searched for solid stones on the ground, and stored stones of different sizes into the inventory. Not long after, another notification sound came out:

[Stone +1]

"Sure enough, it has become game-like, but that's good, at least my physical strength will not be much weaker than others in the early stage."

Don't worry about the fact that reality is so close to gamification.

Next, try the manufacturing function first!

"Open the manufacturing panel"

The interface changes.

[Stone ax (common): wood 1/1, stone 1/1]

The materials are satisfactory.

Choose the stone axe.

Confirm build!

[Record]: Wood -1, Stone -1

[Record]: The stone ax (common) was successfully built.

In Su Mo's hand was a stone ax about the length of his forearm.

The ax body is made of rough wood, which has good friction to allow people to grasp the ax body.

The ax was polished to an extremely smooth and sharp wedge shape.

[Stone Axe (Normal)]: A brand new and unworn axe, the current length is 60cm. With it, your wood collection will be much easier.

"Not bad"

Su Mo gestured a few times.

Of course, the sharpness of the stone ax cannot be compared with that of the iron ax, but it is much easier to chop trees with it.

If you want to be rich, you must first pluck trees.

Holding on to his thirst, under the scorching sun, after cutting 15 units of wood and 4 units of plant fiber, Sumo returned to the underground shelter along the original road.

The shady underground calmed down the dryness of the body slightly, but the protest from the throat made Su Mo feel more anxious. UU reading www.uukanshu.com

A person can survive for 7 days without food, but only 3 days without water.

Especially after adding strenuous labor, I am afraid that if I do not drink water for two days, I will die of thirst in this wasteland.

"Try to use materials to build a simple water intake device first, and see if the system can be upgraded."

After resting for a while to regain some strength, Sumo came to the sunny place of the shelter and began to tear down the floor with the stone ax in his hand.

After carefully dismantling a piece without touching the surrounding floor, Su Mo took out the wood.

First, a wooden barrel was made with four units of wood.

Then I used one unit of wood to make wooden sticks, two units of wood to make wooden shovels, and finally two units of plant fiber to make hemp rope.

A whole set of guys is ready.

Sumo picked up the wooden shovel and dug the hole in the ground.

It's easier than imagined.

With tools, the wooden shovel can pick up a lot of soil every time it falls.

After waiting until a pit deep enough to place the wooden barrel was dug, Su Mo stopped what he was doing and began to assemble the tools he made before.

The wooden barrel was put down, and the wooden stick was hung between the two floors. The wooden barrel and wooden stick were connected with hemp rope.

Afterward, he concentrated his thoughts, and the remainder of the survival system popped up.

[Well water extractor??? ]

Current efficiency: 0ml/day

Upgrade Direction 1: Upgrade the material of the wooden barrel, increase the volume of the wooden barrel, and increase the sealing function to greatly extend the freshness of drinking water. The upgrade consumes 20 survival points.

Upgrade Direction 2: Deepen the good pit, enhance water intake efficiency, and upgrade consumes 130 survival points.

Evaluation: A pit, a bucket, the well water is made up by your brain?