MTL - Science and Technology Library - Chapter 11 : Sell anti-virus programs!

Levi, a young man who spent over a thousand years in a cultivation world, awakens in a hospital only to discover that two years have passed on Earth. The world he left behind has completely changed—mysterious spiritual energy has appeared, transforming Earth into a cultivation world filled with monsters, undead cultivators, and mysterious places like floating islands.Though Levi is furious that the entity who transported him to the other world failed to stop time on Earth as promised, he must now face the new reality. In a world now filled with cultivators, interdimensional conflicts, and the presence of a cultivation leveling system, Levi struggles to adjust to his weakened human body while seeking to uncover what happened to his mysteriously missing family.

Jiang Pengji got something called the Court Intrigue Stream System.
System: “Your goal is to become the most prestigious woman in the kingdom (the Queen)!”
Jiang Pengji: “Okay, System. No problem!”
Years later, she met the target by becoming the most prestigious woman (the Empress).
Jiang Pengji: “Well done, no?”

This is the story of a crazy lich who possesses an internal game system and brings catastrophe to the entire world.

An inexplicable danger lurks within the harbor, where numerous containers emit a pungent stench. Suddenly, crew members fell ill and began to wildly attack other people. The text that appeared out of thin air told her that this was a survival game.

Fu Anan thought that it was just a dream, and that she wouldn’t be affected by it once she woke up.

It wasn’t until the game told her: She would die if she didn’t follow the rules of the game. She would also die if she didn’t survive for at least thirty days in the game…

Unknown danger on the cruise ship; An isolated island that suffocates people; creatures inside the fog; Floods that engulf everything; Epidemic with no cure; Constantly collapsing lands……

How should one survive in various natural and man-made disasters, and in environments where resources are scarce?

- Description from Novelupdates