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

About five minutes later, the bullet sounds from the enemy lessened, unsure if they had run out of bullets or simply decided that this was an ineffective method. At the very least, the machine guns had gone quiet.

Only the sporadic sounds of handguns were left, as well as some homemade hunting rifles that seemed to have materialized out of nowhere, a show of power on the battlefield.

"Feng Tianmin, stay here and keep the firepower up. Feng Long, gather a team and follow me into battle."

"We're sitting ducks here. Unless we can sprout wings and fly, we'll be in trouble if they decide to play tug of war with us."

"Since they're winded now, let's aim to break through their ranks. If we manage to do that, we'll be the ones surrounding them instead!"

The situation on the battlefield changed in an instant!

The Ultimate Strength, a Strange Yet Familiar Enemy! Part 2