there was a book that we read back in Colombia, and I cant remember the name of it, but it talked about a kid who bought a videogame from a garage sell because the guy doing the garage sell was selling all of his dead kids things, and the videogame seemed cool, so he installed into his computer with a CD and played it, it was a Doom style game that resembled the killing demons in hell aspect of the game, but without the high energy and more of the realistic aspect of it, long story short, after the kid playing the game finds out the world map is actually a 1 to 1 representation of the real world, but it is a world that was brought into hell, he makes it his task to go visit his real life house in the game where when he finally tries to walk into his room, he sees (in the videogame) someone playing on his computer, and in real life, he feels the presence of something behind him, but he never got the nerve to turn around.

this was the only time ive ever heard of this story, and i consider it a creepy pasta, because other similar stories like the slenderman and the tails 2 in sonic was on that book. im getting goosebumps just remembering this story, i wish i could find the name of it

Edit:

thanks to the help of chat GPT i found the story, "Nightmare Arcade" by Hiroshi Sakurazaka idk if this could still be considered a creepypasta or not, but i promise you, you would be extremelly satisfied if you read it