Global Catastrophe: I Am Cultivating Immortals in the Refuge

　　 After resetting the circuit and room in the shelter, Chen Nuo did not buy the water source station and the power station immediately.

　　 "The first floor should be used as a place for daily life." Chen Nuo thought in his heart as he looked at this Baiping refuge.

　　 "Furthermore, the current double-layer iron door is estimated to not be enough to withstand the second wave of underground core beasts' attacks, and it needs to be strengthened." Thinking of this, Chen Nuo's face became ugly.

　　 He has faced such a crisis, so he knows the horror of those underground core beasts.

　　 Therefore, he knows that the current iron gates are simply not enough to resist them!

　　 "System, I want to upgrade the refuge and choose to build the second floor down!" Thinking of this, he resolutely chose to upgrade the refuge again.

　　 "Ding, it takes 50 upgrade points to upgrade again! Do you want to upgrade?" The system prompt came to mind, which made Chen Nuo's face change.

　　 However, he didn't care much about doubling the upgrade point.

　　 After all, during the catastrophe, no matter who it is, it is easy to die in it!

　　 So, what's the upgrade point?

　　Life is the most important thing!

　　 At present, the thickness of the iron gate and the surrounding walls must be increased as soon as possible, otherwise it is absolutely impossible to resist catastrophe!

　　 "Upgrade!" Thinking of this, Chen Nuo gritted his teeth and chose to upgrade directly!

　　 "Ding, the refuge was successfully upgraded. The double-layer iron door was upgraded to a steel door with a thickness of ten centimeters, and the thickness of the surrounding walls was increased to ten centimeters!"

　　 "Host: Chen Nuo!"

　　 "Refuge: Level 2! (upgradeable!

　　 "Refuge facility: steel door!"

　　 "Remaining upgrade points: 140 points!"

　　 "Ding, because the shelter is built downwards, an elevator will be given away for free! Please set the location of the elevator!"

As soon as 　　's voice fell, it was only an instant that the system prompt sound appeared in his ears, as well as the property panel in front of him.

　　 He glanced at the attribute panel, surprised he sent the elevator to the shelter panel, and began to find the location for the elevator.

　　 Soon, he chose a place on the template as an elevator.

　　 However, because there is no electricity, the elevator cannot run.

　　 And Chen Nuo only remembered this question after setting it up.

　　 But fortunately, he remembers that there seems to be stairs on the shelter template.

　　 "It seems that the use of the stairs on the template is here." He couldn't help but secretly said.

　　 said, he looked at the template.

　　At this time, because of the second layer, the template has also been changed.

　　 Chen Nuo was only slightly surprised, and then set up a staircase next to the elevator.

　　 Putting away the template, Chen Nuo nodded while looking at the stairs not far away.

　　 "Well, let's set up a water source station and a power station on the second floor." As he said, he called up the mall and walked down.

　　 The second floor, just like the first floor, is extremely empty. You need to set up your own room and other facilities.

　　 However, this time, instead of setting up the room and other facilities, he clicked on the mall.

　　 glanced at the number 140 displayed in the upper right corner, he looked at the water source station and the power station.

　　 The water source and power source are essential during the catastrophe, but if you are alone, the water source and power source shouldn’t need to be upgraded.

　　 Thinking like this, he directly spent 20 upgrade points to purchase the water source station and the power station.

　　 Because the area may increase after the later upgrade, the two stations are still quite far apart.

　　 "Ding, the purchase of the water source station is successful! Will the system automatically set up all the waterways of the shelter?"

　　 "Ding, the purchase of the power station is successful! Will the system automatically set up all the circuits in the shelter?"

　　 After he set up the two supply stations, two prompt sounds appeared in his mind.

　　 This makes him frown.

　　With this kind of operation, wouldn’t the water circuit I set up earlier have been done in vain?

　　 Of course, depressed go to depressed, he still chooses to set automatically.

　　 And when he chose, within ten seconds, the entire second floor of the refuge was instantly lit up!

　　 looked up, the circuit spreads on the wall in an orderly manner, leading to the first floor.

　　 Not only that, the system also installed the light tube by the way.

　　 Chen Nuo couldn't help but feel: "There is still money left to buy the lamp."

　　 Turning off the flashlight on the phone, Chen Nuo subconsciously glanced at the elevator next to him.

　　 The elevator did not light up at this moment. Obviously, it was because the power supply was not coming.

　　 After all, the data displayed by the power station is only 10 watts per hour.

　　 glanced at the remaining 120 upgrade points, Chen Nuo thought it was better to upgrade the shelter first.

　　 After all, he is the only one, and he doesn’t use a lot of water and electricity.

　　, on the contrary, is a refuge. If the level is low, the defense power of the iron gate is not high, and the defense power is not high, so when the second wave of underground core beasts is attacked, it will definitely not be able to withstand it.

　　 Of course, although the first wave of catastrophe has not yet arrived, Chen Nuo, who has experienced the catastrophe, still feels that he has to make all preparations in advance.

　　 At least, I have to make myself feel a little safe in my heart.

　　 Turning off the lights on the second floor, he walked to the first floor.

　　 At this time, the first floor is naturally brightly lit.

　　 "System, how to get upgrade points?" When he thought of upgrading the refuge, the question of UU reading www.uukahnshu.com naturally appeared.

　　 "Ding, the system will give the host one hundred upgrade points every day. In addition, if the host kills the monsters during the catastrophe, you can also get the corresponding upgrade points!"

　　 The systematic answer made Chen Nuo ponder.

　　 "In this case, I want to upgrade the refuge and choose to build the third floor!" Chen Nuo thought for a while and said.

　　 Now, he still has 120 upgrade points left, and at the same time, 100 upgrade points are needed to upgrade the refuge again, so naturally he can't waste the upgrade points elsewhere.

　　 After all, it is perfect to refuge all electricity and water now.

　　Although there are not many water sources and power sources, enough is enough.

　　 "Ding, the upgrade is complete! The steel door is upgraded to an aluminum alloy door with fingerprint recognition! The thickness is 15 cm! The thickness of the surrounding walls is 15 cm!"

　　 "The third floor elevator link is complete!"

　　 "Host: Chen Nuo."

　　 "Refuge: Level 3! (upgradeable!

　　 "Refuge equipment: aluminum alloy door with fingerprint recognition, water source station, power station!"

　　 "The remaining upgrade points: 20."

　　 There are still twenty upgrade points left. After looking at the refuge where the two hundred upgrade points are needed to upgrade again, Chen Nuo can't help but frown, and subconsciously looks at the aluminum alloy door.

　　 He doesn't know whether this door can block the monsters, but he can't upgrade the refuge again.

　　 So, even if he has that heart, he doesn't have that strength.

　　 "Just in case, it's better to keep these 20 o'clock." He wanted to upgrade the hydropower station, but after thinking about it, he decided to save the upgrade point first.

　　 At the very least, upgrade the shelter to one level, so as to calm his fear of catastrophe.