I Was a Loner, but My Class Got Summoned to Another World… - Chapter 266: Omnimorphic Mana Crystalite Slime

Through a mysterious portal, Chen Jin arrived at this strange place – a post-apocalyptic world where civilization had been destroyed.

Consequently, he found –

A piece of metal scrap
A robot trash collector
A battleground
A city
A ton and more of gold
A copy of high-tech documents
A…
In short, Chen Jin found a planet.

- Description from Novelupdates

This is a story about the protagonist getting the system, going crazy in the biochemical apocalypse, producing aircraft and tanks, destroying zombies, saving good people and killing bad people.

- Description from novelbuddy

[All my novels contains mature themes this one included!! R18 Ahead. I'm damn good in it SO BEWARE!!!]Roger thought he’d seen enough horror and slaughter. But nothing prepared him for the day his mentor—an elite swordsman was ripped in half by something not even the gods should have created.Terrified, alone, and soaked in cold sweat, Roger fled deeper into a jungle that had swallowed countless heroes before him. But what awaited him wasn’t death. It was something far worse.A succubus.The succubus who drained him to his bones.He thought he would never woke up, but he found himself not dead, but reborn... in a temple carved from white stone, beneath the towering gaze of a statue unlike any god he had ever seen or heard.Then came the voice—deep, commanding, and ancient.“I am the God of Chaos. The ruler of the new world. The supreme—Hades.”With those words, Roger’s world unraveled.He was shown visions of a forgotten truth: the Ragnarok of the Gods was never an end, but a transformation. The six most powerful gods—righteous and evil—had not died, but merged. Their remnants gave birth to a being that defied all divine logic, a god born from contradictions: justice and malice, order and desire, light and destruction.Hades.Now, with a wicked grin stretching across the fabric of fate, the God of Chaos has made Roger an offer no sane man should accept... but no ambitious fool can resist.“So you want me to be your messenger? But what can I gain from it?” Roger asked with an expectant look.“Become my messenger I shall grant you the power to stand above all life—save for me.”But Roger is no noble hero. He’s a rogue, a pervert, a coward who cries when death knocks at the door. Yet he's also cunning, curious—and fatally tempted by power and the chance to live without ever bowing again.Now Roger a selfish bastard with a broken sword, a sharp tongue, and the spine to spit in a god’s eye must choose what kind of man he will become: pawn, parasite… or prophet of chaos.Now it looks like one bastard adventurer might just rewrite the fate of Nirn.

When the stars all over the sky open a door on the ground, the disorder of the solar terms becomes pollution, which is a disaster for the world.

Season division came into being.

At the flick of the fingers of the Lixia Commander, thunder and punishment fell from the sky!

Tomb-sweeping Day ordered the master to kneel in front of the grave, and my ancestors saved me!

…

- Description from novelbuddy