Dungeon ME: Becoming a fantasy world

"Where am I?"

"Who am i?"

"Why... where the fuck is my body!"

Waking up to a dark cave like space, he suddenly noticed that he was now a dungeon. He had no memory of his past life. Only certain knowledge of his past world were left.

"I came from earth."

His most prominent memories are of movies and fantasy novels. Now as a dungeon, his only wish was to...

"I'll become a fantasy world!"

...

In less than a hundred years, a certain dungeon that shook the world appeared.

Young heroes and villains around the universe came to plunder this dungeon's riches. The arrived there seeking power and fame, but what they found was a world.

A world where mages formed academies to teach magic, dragons kidnapped princesses for their own pleasure, colossal creatures roamed the land, angels descended to the world, demons tempted mortals and gods are worshipped. this was a world where strength rules above all.

A fantasy world...
...

And while these mortals enter the world seeking riches and fame, they did not know that above them, an ancient figure eyed their very souls. wishing to make them a part of him and never return.

...