Is there a mystery detective novel like When the Secret System is in Progress?

Answer 1

There were novels similar to The Secret System in Progress:
1."The Male Lead's Self-Cultivation." Author: Wen Ruobucheng
2."Strange Tales of Rules: A Nonexistent urban legend." Author: Binary-System Sword Immortal
3. Above the Mist, Author: Fickle Scholar
4."The Strongest Samsara Boss", Author: Ying Tu
5: My Tokyo Ghost Story, Author: Just a Salty Meow
6:"Return to the Abyss", Author: Not a Shine
Devil's Exchange, Author: Guo Jia
8:"My Pixel-Tale Game Has Come True!" Author: The Face Spirit That Can Play Music
9. New Online Liaozhai, Author: Masatsuki Yuxin
Player, Please Get In The Car, Author: Hai Yanshan
11:"Secret Fictions", Author: In a Snapping Smile
Famous Detective Cultivation Manual, Author: Fat Melon
Death Train, Author: Death Fisherman
"Unlimited Strange Game", Author: Laughing
The Absurd Deduction Game, Author: The Poet of Eternal Sin
"The World Is Loaded with Thriller Games." Author: Xie Sanqian
17:"The Punisher of the Heavens", Author: Six Hexagrams Have a Kan
Mystery Makes Me Strong, Author: Mu Heng
Survival Manual for the Strange World, Author: Feng Nanbei
"I'm Checking in at the Mysterious Revival." Author: I Love to Play and Am Noob

The following is a detailed introduction of these novels:
1."The Male Lead's Self-Cultivation": Book Nineteen, City Suspense
[Reward index: 8.9(bonus from completing the game)]
The overall style of the book was dark. It might look vicious in the early stages, but it felt like it took off after the reversal in the later stages. The logic of the book was more rigorous. The main character had a second personality. It should be said that the main character was the second personality.
Don't be fooled by the title of the book. It's said that the author has written several books.
2."Rules of Ghost Tales: Nonexistent urban legends": Author's name is useless…
Karma, factional strife, and a little soul games
The non-existent is hidden in revolution. You, me, it and it add a thick stroke to this glorious world
3."Above the Mist":"Above the Mist" is a fascinating mystery novel. The story unfolded in a foggy scene. After the main character Bai Yanliang was discharged from the hospital, he began to unravel one fog after another. The atmosphere of this book was very strong, making people feel as if they were in a fog of suspense. The beginning and development of each instance dungeon were full of suspense and thrilling elements, but the ending was often disappointing, leaving behind some unexplained questions that made people feel regretful. For readers who liked supernatural novels, this book was a good choice. The author's rendering of the atmosphere was excellent, and the description of the character's heart was also very exciting. Moreover, there was still a lot of suspense left in the story, making people want to continue reading. Although the male lead had a crazy personality, his kindness and integrity left a deep impression on people. He gave off a much better feeling than most of the male leads in Qidian. After three years, this book is finally back. I believe it will become a classic supernatural novel.
4."The Strongest Reincarnation Boss":"The Strongest Reincarnation Boss" was a transmigration novel that made people laugh uncontrollably. The story was set in a mysterious world where Lu Fan was forced to become an inspirational actor. The author skillfully used nonsensical and funny elements to make readers feel fun and surprise in reading. Even though the plot at the end was a bit messy, overall, the book left a deep impression. Whether it was from the content of the book, or from the emotional, psychological, social, and historical perspectives, this book could give people inspiration and thought. In short,"The Strongest Samsara Boss" was a transmigration novel that made people laugh uncontrollably. It was worth reading.
5."My Tokyo Ghost Stories":"The Eight Great Ghost Stories of Tokyo?"
"The eight-foot-tall girl in the night, the number that is forbidden to call, the girl in red who roams the streets, the ghoul in her dreams..."
"These ghost stories are all good. Can someone explain it to me…"Why did I receive a sacrifice?”
Looking at the indescribable object in front of him, Shirakawa Haru sighed helplessly.

In short, this was a story that was both mysterious and strange. (Part of Cthulhu and SCP-related content): 834, 976, 407
6."Return to the Abyss":"Return to the Abyss" was a group portrait novel without a CP. It described the journey of the dead trying to return from the abyss. The plot of this book was very compact, full of suspense and infinite elements. The female lead and the other supporting characters had distinct personalities, and the plot was also very attractive. Even though I couldn't understand some of the schemes, it didn't affect my love for the book. The author's diligence is amazing and has left a deep impression on me. Although some female characters were more outstanding than the male characters, this did not affect the overall reading experience. Overall, I highly recommend 'Return to the Abyss' and give it a rating of 4.6 stars.
7."Devil's Exchange":"Devil's Exchange" is a novel that makes people fall into traps. Compared to other similar books, it was undoubtedly an outstanding one. The author attracted the attention of the readers with his unique creativity and wonderful plot. The character creation and plot development in the book were excellent, making people immersed in it. The ending of the book was also satisfying. The author's hard work and talent were fully displayed. If you like this book, don't hesitate to read it!
8:"My Pixel-based Ghost Story Game Has Come True!" [This is a cyberpunk world without ghost stories, but the Visionaries brought the ghost stories of the game into the present world.]
Doctor, every night, I dream of being dragged into a town full of ghost stories by countless bloody hands."
"This is a normal phenomenon. It's normal for young people to be a little stressed."
"But…I feel like they're right next to me, right in this city. It's like an urban ghost story."
"But the urban ghost stories you mentioned are just entertainment news created by boring websites."
"But I really saw a ghost!"
The doctor frowned."But our civilization doesn't have such things. There are intelligent and biological revolutions everywhere."
9.: Zhu Yan was an ordinary office worker and an online writer. Her life was dull and fulfilling. However, her grandmother's dying words revealed a secret that had been buried for 24 years. A shocking murder case caused Zhu Yan's grandfather and parents to die. Zhu Yan, who was still in her infancy at the time, was the only living witness at the crime scene, and the murderer had not been arrested yet. From then on, Zhu Yan embarked on the long road of chasing after the murderer…one after another, different stories, different experiences, and turning danger into safety again and again. What she wanted was her heartbeat, and what she played was excitement. This was the feeling that a web writer needed. At the same time, it also made Zhu Yan's life more exciting, as she had a little special ability and was especially sensitive to the aura of death.
Player, Please Get In The Car: Keep It For Now
[11:"Secret Fictions": Yixiao's new book. The first chapter is enough to give me a feeling. It's really a passer-by. Don't miss it.]
"The Famous Detective's Cultivation Manual": The Famous Detective's Cultivation Manual was a fascinating novel that made people want to explore it. The protagonist of the story, Zhou Yan, picked up a book on the ground on his way home from work. This book had an awkward name-"The Practice Manual of a Famous Detective." The author, Fat Melon, attracted readers with his unique creativity and wonderful storyline. The setting of the story was set under a false calm surface, revealing the cruel truth. After reading this book, the protagonist Zhou Yan gradually realized that he could become a detective and began his journey of cultivation. This book was not only a mystery novel, but also a novel about courage and determination. It tells us that even in the face of difficulties, as long as we dare to pursue the truth, we can overcome everything. In short,"The Famous Detective Training Manual" was a fascinating mystery novel that was worth reading.
"Death Train": A series of Death Fishing, but it's a eunuch.
14:"Unlimited Strange Game": The protagonist of a high-IQ villain. The main character is cool. The protagonist is born with apathy and has never been interested in relationships. Sometimes, in order to complete a mission, he will even kill his teammates. It can be said that he will do anything, but it feels good to read about it. He is completely different from those saintly protagonists. I strongly recommend him.
"The Absurd Deduction Game": This book seems to have another companion chapter. I haven't read that one, but it's not particularly influential.
The main character's looks were heaven-defying and invincible, but on the surface, she was a weakling and physically useless. It seemed that there was no female lead. How many female leads were written to be outstanding?
"A Thriller Game Loaded Around the World": Three Thousand Old Thieves 'new book, formerly known as The Earth Is Cursed. It was a good selection of horror (neurology) novels. It told the story of a young man who bravely ventured into the world without snowflakes.
17."The Punisher of the Heavens": A poor scholar in Huangshan Village. He had a beautiful female neighbor called Chu Renmei...
Jiang State Capital's little constable had a pitiful little loli living next door…
He was the second generation of an official in Changdao City, and his childhood friend's neighbor was called Gaya...
A silly beggar from Guobei County, living far away from the crowd and next to Black Mountain…
He was…Shen Xingzhi, a warm-hearted man who descended to the heavens and lived next door to a female ghost.
"Mystery Makes Me Strong":"Mystery Makes Me Strong" was a very well-written book. Although the description in the early stages was a little vague, after this stage, the quality of the entire book had greatly improved. The background of this book was very attractive and filled people with curiosity. The protagonist mysteriously descended into the world. In the face of the disaster, he cleverly used his wisdom and ability to successfully survive the danger of the vast sea. This book gave the readers a lot of inspiration, allowing them to feel the joy of life and the truth of emotions from the book. Whether it was from the content of the book or from the perspective of life, emotions, psychology, society, and history, this book was highly recommended.
Survival Manual for a Strange World: A Story of Being a Human in a World of Monsters and Cannibals
"I checked in at the Mysterious Revival" was a very interesting novel. The author integrated Sadako and Coconut-Mei into the world of mysterious revival, adding some novel elements to the whole story. Although there were some bugs in the settings, it did not affect the overall reading experience. The main character of the book, Su Yuan, transmigrated to the world of the mysterious revival. In order to survive, he decided to cling onto the main character's thigh tightly, until one day, he obtained a mysterious check-in system. The author did a good job in writing. His words and sentences were smooth, and the description of the scene was not out of line. In terms of the plot, because the protagonist's ability was in supermodel mode, the original atmosphere of depression, horror, and despair was greatly weakened, and the character image did not leave too deep an impression. In terms of setting, compared to the original novel, the main character's abilities were already supermodel. It felt like he was playing in a completely different style from the other characters. In addition, the protagonist seemed to lack self-awareness. In terms of characters, the whole story gave people a sense of passers-by. Overall, this book gave people a feeling that it was not recommended.