best alternate history science fiction books

Tang Zhen transmigrated to an apocalyptic world, where humans struggled to survive in various buildings that they built because the ground was covered in lethal dangers that were invisible to the naked eye. Tang Zhen transmigrated along with his mutated cell phone that was packed with miraculous applications. There were all kinds of cities – some could fly in the sky, some could submerge into the ocean while some could become invisible – and shocking secrets were hidden within them. The power of Tang Zhen’s city was… He established a city and quickly leveled up his army with speeding tools. Then, he dominated this alternate world by seizing other cities. He sat at the very top. Beneath his feet was a vast floating city guarded by dragons and surrounded by angels. Countless cannons were also set up at various corners of the city. A million miles ahead, in the depths of the ocean, there was another city as large as a continent awaiting his conquest.

In Chaos City on the Norland Continent, there is a strange restaurant. Here, elves and dwarves share tables. Beastmen are prohibited from making a din, and giant dragons can only seat around the tiny square in front of the restaurant. Even demons have to bring their own stools… But it is such a strange restaurant that has long lines outside every day. Elves are stuffing kebabs, paying no mind to their manners; giant dragons are sitting around a hot pot, strainers in their hands; demons are eating nice-looking dango… "There's no other place on this continent where you can find food like that! The boss here is a genius!" a customer provides such a review. Then, he gives a furtive look at the door. "Also, don't you think of kidnapping the boss away or dine-and-dashing, or you will suffer a tragic death." "Eat, pay, or you will be beaten to death." says a cute little girl in her childish voice as she trots forward. A five-meter tall dragon shivers when it meets her eyes.

The stark-naked, handsome, young man looked intently at a winged reptile creeping in front of him, His lips, closed tight since setting foot in this new realm, began to move as words echoed in the shadowy realm of awareness. "It has been determined that the leaders of the plan and all related individuals are dead, communication with Earth has been completely severed. Transitioning to autonomous operation mode. Updating log-in name to the fully planned 'Li Lin'. Given the current situation, autonomous task B4 is selected." The boy, now known as Li Lin, paused briefly, his voice taking on a chilling edge as if from the depths of hell. "Infiltrate and invade the low-level civilization, colonize it, Earthify it." The ultimate weapon in the form of a young man, in this magical alien world, sensed a familiar scent - war. And so, he continued his mission.

"Missus, time to fulfil your duties!” Mu Yuchen demanded as he pulled Xi Xiaye closer with his arms intimately wrapped around her waist. — It was a meticulously planned feast for the powerful. Her fiancé had knelt down on one knee and proposed to her sister instead. Robbed of her right to her inheritance, she was prepared for the Xi family to throw her to the wolves. As she slipped away from her family that had turned their backs on her, she found him — Mu Yuchen, the low-profile and reserved noble that ruled City Z and led Glory World Corporation. “Mu Yuchen, let’s get married!” He looked up at her, then suddenly stood up. “Where are you going?” "Let’s go. Any later and the civil affairs bureau will be closed.”

The first time Yan Zhaoge crossed worlds, he landed in a martial warrior civilization that was at the peak of prosperity. He ended up in the book storage building of the the Divine Palace, which collected and preserved the classics of the entire world from all fields of knowledge. However, a world class calamity struck soon after and even the Divine Palace was destroyed. Yan Zhaoge's soul once again crossed over, but this time he arrived in the same world, except countless years have passed. With his brain full of rare books and classics from the era of peak prosperity, Yan Zhaoge's second crossing over to the present era was like a gamer who was used to playing hell mode suddenly finding himself playing the game on easy. That was just way too awesome. But before that, he needs to fix a certain problem. “I'm not a main character? In fact, I'm actually the the main character's love rival and the antagonistic Mr. Perfect senior martial brother? This script is wrong!”

Traveling to the fully virtual game "Stone of Creation". This is no longer a game, but has become reality. Life is no longer a health bar. Power is no longer Skills. The body is no longer data. Since the game has become a real Otherworld, transform this game Otherworld into an Otherworld game world. Datafication, initiate! [Personal Panel] [Skills Level] [Dungeon Instances] Step by step, create them all!

"Technology changes life, making the world a better place." Firmly believing this statement, Li Er died from nuclear radiation and began his journey across different worlds-- "It's not me who is wrong, it's the world. Let's start by taking down Arasaka." "Impressive Cyber Prosthetics, good thing my Cybertron Prosthetics are not bad either."

"In the unforgiving corridors of time, I was brought to the brink, my life teetering on the precipice of destruction. But fate has granted me a remarkable opportunity – a return to the past, a chance to rewrite my destiny. Brace yourself, for when our paths cross once more, the world will bear witness to an unrecognizable future!" Enter the realm of Alternate World, a virtual playground where mere mortals are elevated to the status of gods. The moment this game touched the lives of players, our world, our very existence, was irrevocably altered. People discovered newfound abilities, and playing the game became a way of life, a livelihood. Among those players was Manato Tsukasa, an unwitting protagonist whose life was thrust into turmoil on the eve of his wedding. In the shadowy depths of night, enemies emerged, determined to snuff out his existence. He stood on the precipice of death, only to be granted an unexpected lifeline, a return ticket to the past. With the past before him like an unwritten book, Manato seized this extraordinary chance with relentless determination. Armed with the knowledge of his past mistakes, he embarked on a journey to exact revenge upon the architect of his misery. The game that had once been his escape from reality now served as his crucible, transforming not only the gaming industry but also the very fabric of our world. Yet, little did Manato suspect that Alternate World held secrets far more profound than any player had ever imagined. The game's mysteries ran deep, and the truth, obscured beneath layers of illusion, remained tantalizingly elusive. As he delved deeper into the game's enigmatic depths, Manato would soon discover that the lines between reality and virtuality were destined to blur, forever changing the course of his life and the world itself.

Five different worlds of spirits, demons, ghosts, monsters, and beasts descended on the Blue Star in the form of dungeons. Humans were randomly selected by the Heavenly System to enter these dungeon worlds. Su Qianqian, a kindergarten student, was unexpectedly chosen. When Su Yang learned that his daughter was going to enter the dungeon world, he reminded her, "Don't play for too long. Come home on time for dinner." Play? Did he think the dungeon world, which was like a human purgatory, was a playground? Just when people all thought Su Qianqian was done for, they were surprised to find out she was really just playing around. In various dungeon worlds, the divine beast Qilin served as her mount, a legendary demon lord begged to be her full-time nanny, a giant monster acted as her bodyguard, and flower fairy and ghost queen Xiaoqian even wanted to be her stepmother. The whole world was shocked. Who on earth was Su Qianqian's father, Su Yang?!!

Ye Qingzhou, a swordsmanship prodigy from the Earth, is blown by a cruise missile to the Blue Star, a world flourishing in martial arts, embarking on a journey to seek the ultimate realm of the sword. "Where is this?" "Of course, this is the school's medical room." "Medical room? I think I just got hit by a cruise missile..."