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 figuring out his plans to solve the diesel shortage, and recording it in his list of required materials, Su Mo returned to the third floor.

Once the problem of the combine harvester was solved, dealing with the two blueprints that were still on the table became much simpler.

For the rotary tiller, he only needed to construct the rotary tiller shaft based on the only structure of the tractor. This did not require much technical expertise, and the same could be said for the flour grinder.

The blueprint design he received was for an inclined rotary tiller shaft, and Su Mo completed the shell structure on the workbench by two o'clock in the morning, without much assistance from the system.

"The workbench is easy to use, but is challenging to make create larger items with. After this disaster is over, things would become more convenient if I build a cutting machine."

Preparation, The Last Busy Day