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

At the back of the castle, there were no bulges or protrusions on the wall. Without professional tools, it would be almost impossible to get in from here.

Were it not for the black color of the figure below that was clearly visible against the white snow under the castle, it would be difficult for Su Mo to spot at first glance.

The figure seemed to be looking at the castle wall, studying how to climb up this smooth back wall.

It took three to five minutes, but when Su Mo's eyes were a little strained, the figure finally moved.

Seeing what followed, Su Mo suddenly burst into laughter.

This "man in black" seemed to have opted for the same method Su Mo used before to attack the lion people's camp!

Does he intend to dig a hole under the kobold castle?

Seeing that the man in black had started digging with a shovel, even Su Mo felt a headache coming.

Taking Advantage To Loot, Breaking Into The Castle!