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

Restraining the expression on his face until he walked out of the small entrance and, after making sure that the people inside would not hear him, Su Mo could no longer maintain his expression and laughed unscrupulously.

A few pancakes, and a few iron axes and pickaxes, could be exchanged for a rare-level design blueprint. This trade may not be a loss for the other party, but for Su Mo it was definitely...

"My goodness, a few units of iron plus a few units of wood, one or two catties of flour, and two fishes can be traded for a rare-level design blueprint. This feels..."

"More refreshing than opening treasure chests! Damn!"

At this moment, Su Mo finally felt the joy of being a capitalist. It was a useless item in the eyes of ordinary people, but its potential could be maximized to 100% or even 200% in the hands of Su Mo.

Acquisition of Materials, Crazy Supplies