My apocalyptic simulation game

Description

The sun goes out and disaster strikes.
A hollow filled with blood and darkness stood across the sky. The sky mourned and cried, and the earth was polluted with blood and tears.
In the darkness, shadows cover the dead city, old things eat away at the flesh and blood of the living and the ruins of civilization, and disasters are like immortal kings looking down on the ups and downs of the earth, accepting the world that is entering destruction as a coffin.
……
Fortunately, this hasn't started happening yet.
On the eve of the end of the world, Su Hong accidentally obtained a doomsday simulation game and was able to bring disaster items back to reality through simulation.
In the simulation, he explored the apocalypse of disaster, but in reality he hid behind the scenes, built vests, and founded major disaster organizations...
At first, he just wanted to survive in the apocalypse, but after experiencing countless simulations, he suddenly found that he had accidentally cleared the apocalypse in advance.
The shadow demon who caused the dark disaster, the sun knight who burned himself and illuminated the night, and the plague dragon who enveloped the world with the wings of disease.
The Lord of the Veil, the Knight of the Blazing Heart, the Tomb King...when great beings emerge from the sky.
The whole world is shaken and feared by disaster.
Only then did everyone discover that these ancient beings who had saved the world were actually his vests.