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

As the evening neared in the underdeveloped New World, even the demon race's main city—Freedom City—whose fame spread far and wide and gathered the whole world's wealth for its own, could not prevent "the curtain call" that marked the end of the day.

At 6pm, on the various streets, exchanges began their final transactions for the day, and people started rushing in to clear their accounts.

Some special "entertainment venues" also took this opportunity to open their doors, which were usually closed in the day, allowing access to the "colorful" scenes within.

However, even the cityfolk could barely afford to patronize these places, let alone the ordinary members who were still working hard to strengthen themselves.

Regulatory Power, First Night in Freedom City