Catty Catty Catty

As disaster was about to strike, a group of survivors transmigrated into a desolated world and were challenged to a game of survival. From terrifying acid rains, to endless natural disasters, the heavens burn while the earth scorches, radiation is rampant, and nobody is spared from the dangers of this hellscape. The only way one survives is by building a shelter and slowly upgrading it in hopes of surviving another day. 
Luckily, Su Mo awoke a Doomsday Survival System that allowed him to infinitely level up and upgrade his shelter! The main shelter wooden door can be upgraded into a metal door, which in turn upgrades into a composite gate; the wooden spears can be upgraded into bronze spears, which eventually upgrade all the way into electromagnetic spears... While everyone struggled to survive, Su Mo was fully loaded, and well equipped to dominate the post-apocalyptic world. 
"While some of us are lighting oil lamps, he's been using refrigerators!" 
"The walls in his shelter alone are tens of meters thick, it's the safest place on this planet."
"Before I die, I wish to spend one day in his shelter..."

EndlessFantasy Translation 

My Post-Apocalyptic Shelter Levels Up Infinitely!

LambSheepMutton

There were no more piercing cold winds blowing through in the passageway after the outermost stone door had been closed, which blocked the flow of cold wind from outside.

Su Mo kept walking and, after closing the second door, he could clearly feel the temperature rise in the shelter.

It was not until he walked to the main door and opened it that a wave of warmth greeted him.

Compared to the minus seven or eight degrees outside at this time, the four or five degrees in the shelter was practically a kind of enjoyment.

Glancing at the pets who were still asleep, Su Mo walked toward the bottom of the ventilation duct in the crop culture room and peered upwards for a while.

A whirring cold wind was blowing down from the ventilation duct. The temperature in the crop culture room was obviously lower than the other rooms, even lower than that of the living room.

Winter is Approaching, Humans Counterattack!