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

After the gods fell and forced the foreign races to enter the wasteland in search of God-transcending items, it was obvious that not only had their ability to develop and strengthen themselves suffered a serious blow, but their combat awareness and capabilities had also declined to an absolutely deplorable state.

Su Mo hopped into the sea at four fifty-five in the morning after the OS informed him that the last major squad had taken up its position. The sea washed off the blood of the foreign races left behind on his Simba onesie.

The foreign races were too weak, or perhaps it was the case that not even Su Mo realized how powerful he was.

He had started by taking on one at a time, then two at a time, and then three at a time.

When Su Mo realized the foreign races could not fight back against him despite spotting him, he started being more bold and unrestrained in his fighting style.

Sorry, I’ve Got You All Surrounded!