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

"Hmm? Has the ruins entrance opened up?"

Before he knew it, three minutes had passed.

The door of light that had been brewing for a while finally completely expanded itself in the cave's depths at precisely six in the evening.

Su Mo summoned a system analysis on the light but still to no avail. He no longer delayed and strode toward the light with Oreo in his arms.

He took a big step into the light.

The magnetic pull inside the door of light began to strengthen, and in just a few seconds, the two were forcefully sucked through the light, completely disappearing from the cave.

Immediately, the door of light began to dim and shrink as if it sensed someone had entered.

The door of light that was about an adult's height shrunk into its initial small dot of light in less than half a minute.

'F*ck. Is only one person allowed to enter the ruins?'

Early Bird’s First Flight, the Future World! Part 2