In the Era of Civilization Restart, I Can Improve the Quality of Items

At the end of the 21st century, some young humans around the world were forced to teleport to other planets and play a death survival game. If they want to survive, they must build powerful shelters and upgrade their technology trees to survive better. "Congratulations on obtaining the rare formula *ak semi-automatic rifle" "Congratulations on getting the epic formula *rocket launcher" "Congratulations on getting the epic formula *Grenade Launcher" … Iron ore, iron concentrate, wood, stone, parts, oil, iron plate, flint, gunpowder... Countless precious resources need to be mined by yourself, if you are strong enough! Maybe snatching is also a good option. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.