Doomsday: My Shelter Unlimited Upgrades

Lin Tian can't get so many survival points now.

Moreover, after another five days, he may not be able to get it out.

Right now, there is only one other option.

Bring your own materials and strengthen the shelter.

It's just that I don't know how many materials are needed to complete the strengthening.

Lin Tian frowned and thought, and unconsciously clicked on evolution branch 2 with his consciousness.

The system prompt rang soon.

"Insufficient survival points, evolution failed."

"You can choose to use a thousand units of stone + 25 survival points to strengthen it."

Hearing the system prompt, Lin Tian's eyes lit up.

A thousand units of stone.

For Lin Tian, ​​who has fresh water resources, there are not many at all!

Opening the transaction list, Lin Tian released his request.

"Trading Item: Fresh Water."

"Required items: a lot of stone."

"Introduction: There are a lot of stone materials with prices, and I guarantee a good price!"

After thinking about the wording for a while, Lin Tian announced the demand for stone materials.

The second after he posted the demand, the chat list exploded again.

Since yesterday, people have been paying attention to the only person who has traded fresh water.

They have only one purpose of paying attention to Lin Tian, ​​which is to seize the opportunity when Lin Tian releases the fresh water deal next time.

"Damn it, boss Lin Tian announced the fresh water deal again, whoever of you has a lot of stone, hurry up!"

"Boss Lin Tian, ​​is it too late for me to dig stones right now?"

"There is a quarry in front of my house. I regret it so much. Why didn't I stock up more stones?"

"Stop talking, brothers, I'm off to dig rocks!"

While the chat page is hot, Lin Tian's private chat page is even hotter.

Countless people came to look for him with a large number of stones.

Some people even made up small compositions in order to allow Lin Tian to trade with him.

It is naturally impossible for Lin Tian to believe the nonsense of these people.

After blocking all these people, he finally chose some people with lower asking prices to trade.

Soon, 500ml of fresh water was traded by Lin Tian.

Instead, 1000 units of stone!
In the morning, 100ml of fresh water can exchange 100 units of ingredients.

Up to now, 100 units of stone can only be exchanged for 50ml of fresh water.

This is the horror of the end times.

Lin Tian can imagine how many people have chapped lips in the game of the last days, hoping to get fresh water.

Shaking his head, he threw out these distracting thoughts.

Lin Tian took out all the stones of a thousand units and piled them in the shelter.

A thousand units of stone are all taken out, like a hill.

It looks quite spectacular.

Lin Tian opened the enhanced interface, and followed the system prompts to select evolutionary branch 2.

At the same time, the thousand stones placed on the ground instantly turned into pale white spots of light, floating towards the wooden wall of the shelter.

The strengthening process only takes a few seconds.

After a few seconds, the stone disappeared and so did the light spots.

Everything is as if it never happened.

However, the strength of the shelter has risen by more than one level!
"Name: Stone Shelter (Normal)"

"Introduction: A relatively solid shelter with excellent waterproof performance, excellent earthquake resistance, and excellent sturdiness. In order to prevent acid rain disasters, it is recommended that you take drainage measures."

After seeing the last introduction of the system, Lin Tian nodded.

Although the overall strength of the shelter has risen, if the drainage measures are not done well.

Inevitably some acid rain will seep in.

It seems that the construction of drainage measures must also be put on the agenda!

After making up his mind, Lin Tian looked out through the skylight.

An afternoon of digging, building skylights, and upgrading shelters.

It took a lot of time.

Looking at the twinkling stars in the sky, Lin Tianyue felt the time and estimated that it was around ten o'clock.

Climb onto the bed and hold the pet egg that emits light fluorescence in his arms.

Lin Tian fell into a deep sleep.

"Apocalypse calendar, January 1, year 1."

"It's the first time you get an item through a transaction, and you are extremely satisfied. (survival point +25)"

"Your fresh water resources are not only for drinking, but also for trading. You are very happy. (survival point +15)"

"You have worked hard on archery all morning, and you have made rapid progress. (Survival Points +15)"

"You have strengthened the skylight of the shelter, and the sense of security has increased. (survival point +25)"

"You have strengthened the shelter as a whole, and the sense of security has been greatly improved. (survival point +35)"

"You slept very peacefully on the second night, and your mental and physical strength have fully recovered. (survival point +5)"

"Congratulations, you have survived another day and are evaluating what you did today. (survival points +25)"

"Final settlement: You have obtained a total of 120 survival points today, with a total of 204 remaining survival points."

The sound of the system sounded in the bright sunshine, and Lin Tian opened his eyes in a daze.

Suddenly, Lin Tian felt something sticky licking him.

Lin Tian woke up instantly and opened his eyes.

A white figure was squatting in front of Lin Tian.

Next to it are white eggshell fragments.