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

[External injury treatment (biological): Weak]

[Internal injury treatment (biological): Mild]

[First Special Ability: Long-term usage has a certain chance of stimulating changes in the organism's genetic chain.]

[Second Special Ability: The absorption of psychic energy has different effects on different creatures. Slightly increases the evolution speed of wasteland creatures.]

[Caution: Stimulating changes to the organism's genetic chain might not necessarily produce positive effects. Please employ a small-scale patch test on the organism's skin and increase the dosage only after confirming the effect. Do not be reckless or the consequences might be disastrous.]

[Comment: A mysterious 'Pandora's Box'. Continuous upgrades might attract the attention of certain existences.]

Sweat, Harvest, Melody Begins!