Nightmare Factory by Snailords

The Nightmare Factory Roleplay created by Ayxo16 was based on a webcomic under the same name. You can find the comic here.

In early 2016, Snailords/Aidyn released his second webcomic, Nightmare Factory, on an app called WEBTOON.

Short Summary of the Comic
The story primarily follows three characters: Kreyul Arroyal, Emai Kassu, and Phirre Lotus.

Original summary (no spoilers):

Emai Kassu is an insomniac writer who writes whenever and wherever inspiration strikes. When her computer breaks, she is taken into another world and told that she is taking part in a game called "Nightmare Factory." The game's creator, Phirre Lotus, tells her that for every hour spent in NF, a year of her life is lost. If she survives 24 hours of brutal, intense challenges, she gets any one wish. The more difficult the wish, the more difficult the challenges. She bargains with Phirre to bring in one of her original characters, Kreyul Arroyal, to help her beat the first challenge. Emai and Kreyul uncover a conspiracy that suggest that Emai's entire life is a lie.

WEBTOON's summary:

"A lonely insomniac writer fills her room with stories of strangers she eventually encounters. Her family vanishes overnight. The only evidence of their existence is her memories. To make sense of her world and why the stories are written, her newly encountered friend and herself will read through a library worth of her handcrafted books, filled with tales of fantasy and adventures."