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

The special abilities of the Demon clan may be mysterious to others, but as the enemy, it was certainly not a secret to the armies of the Light Empire.

Since they had chosen to launch a sudden attack when there was a chance that their territory might have been infiltrated and have achieved good results so far…

That would indicate that this time, the attack of these mad cyborgs from the Light Empire was certainly not the same as their previous harassment outside the city, where they would disperse after a while and not turn it into a full-fledged war.

In a way, from the moment they chose to infiltrate the city and target the inner city, they began attacking the civilians and looting goods.

This war tonight was bound to end with either one side's complete defeat and significant damage, or…

Violent Counter-Attack, Taking Advantage of the Situation!