Sci Fi Crossover

"I've finally gotten my revenge and eliminated all the aliens. Now what? I thought it was over, but no, it was only the beginning. One day, a mysterious object appeared out of nowhere and began conquering the entire universe. Gates, monsters, and other mysterious primordial beings, far stronger than I could have ever imagined, began to emerge..." What to expect: Fantasy World and Adventure start later in the story. Writing style: 1st person writing will eventually switch to 3rd person writing later in the story as more characters are introduced. Other tags: Fantasy, Isekai, Evolution, Dungeon or Gates, Revenge, Summoning, Sci-fi, a little Romance, Necromancer. Keep reading to find out more. Discord: https://discord.gg/NNeHNANtrd

Step into a world where science meets the unknown, where mechas clash in brutal duels, and where every Biocore holds a mystery waiting to be unraveled. Follow Nioh, a genius weapons designer, as he uncovers lost technology, battles biomechanical titans, and pushes the limits of power, in an intergalactic thrilling adventure ------ The genre is Sci-fi. A mix of science and some myths. In a futuristic/interstellar world. The hero is fun, scheming and smart. The science and the weapon building is central to the story and well thought.

a guy, a famous actor, gets isekaied as a frog into a fantasy sci-fi world and uh becomes the protector of magical beings, the hero of the forest, the villain to the humans, humanitys hero's worst enemy

Ethan Walker, an overworked office drone, thought his worst problem was a bad convenience store meal. But after collapsing on the subway, he wakes up in the cockpit of a starship in the middle of a vast galactic empire. Now, stranded in a sci-fi universe filled with autocratic empires, space pirates, alien races, and interstellar wars, Ethan must adapt fast or be left for dead. Armed with his wits and an unpredictable star ship, he embarks on a journey to survive and thrive as the galaxy’s newest mercenary. From office worker to space legend, his adventure across the stars begins!

Ryan Black, a normal university student struck by life-changing abnormal growth spurt. Expect a little bit of slice of life, a little bit of comedy (not that I'm good at it), a little bit of sci-fi, a little of crime and a little bit of sex. The Genres tags is limited but my story is unlimited *self-cringe to death*

After dying as a soldier for his alien overlords, Elias Varis is reincarnated decades into the past with a System, before humanity’s enslavement. The Prometheus System, a powerful interface that grants him a photographic memory and unlimited untapped knowledge, decades ahead of his time. Armed with cutting, edge military strategies, futuristic technology, and a mind that processes information like a supercomputer, Elias knows that Earth is doomed unless he changes its fate. To unite humanity and prepare for the inevitable invasion, he joins the Western Military Academy, hiding his abilities while secretly shaping the foundations of war. With time running out, Elias must outthink, outbuild, and outfight an empire that hasn’t even arrived yet.  Warning: Reincarnation, military sci-fi, and a broken OP system ahead! Oh, and just so you know, all chapters on Webnovel are free! 

"How far will you go to save the only home you've ever known?" Tyson never wanted to be a hero! But on his 20th birthday, everything changed. A Meta-bot chose him—fusing with his body, wrapping him in powerful armor, and throwing him into a war far beyond his control. "You are now a Ranger. Fight, survive, or let Earth die." Edward said, "And remember, you don’t choose Meta-bot. It chooses you. And when it does… your life is no longer your own, Tyson" The rules are straightforward. Every few years, the intergalactic tournament commences. Earth gains additional time by successfully navigating the stages. Billions of lives hang in the balance while the battles are broadcast live—nothing more than a twisted form of entertainment for some godlike beings. "You’re not ready for this, Tyson. You’ll get yourself killed." As if fighting for survival wasn’t enough, Tyson must prove himself worthy of the Roger family name, fix his fractured bond with his adopted brother, and navigate his growing feelings for a girl he never expected to fall for—the daughter of a fallen General. But time is running out. "You think this war cares about what you want?" "No, it never has. It never will," a voice whispered. "It’s on you, kid. If you want to survive, then fight for it." ------ This novel blends sci-fi and fantasy, featuring a 'weak to strong' progression. My focus is heavily on character development, so if you're looking for a regular story, then this novel might not be for you! Tags: Action, Adventure, War & Politics, Tournament, Fantasy, Romance, Gore, Death, Brotherhood, Alliances, Dungeons & Maps, Weak to Strong, Sci-Fi x Fantasy, Character Growth, Power Progression, Mecha Battles, Revenge & Redemption, High-Stakes Survival, Emotional Depth, Betrayal. [ I recommend you to give it a read to 30+ chapters before you decide to drop the novel ] [Pease comment if you want to ask questions] [ I updated 1 chapter per day, 7 a week. 50 Power Stones = 1 Extra Chapters 100 power stones = 2 Extra Chapters ] [Your Support will be a massive help to me!]

[SPIRITY WSA ENTRY - VILLAIN] When I was in middle school, my favorite genres were always Sci-fi and Reincarnation. So, when I heard that I was going to be reborn into a world of advanced AI and high tech, my excitement went through the roof, knowing that I would be reborn into my dream world. But that's not the only reason why I'm excited, because I knew to myself that in this life I would finally have a chance to find my cute heroine!! that's right... My ideal heroine... However, Little did I know that my heroines were all originally villainous villains?!!, whose fates are to destroy the world?! "Ahh shit...." ======== [Benefits of adding this to your collection] -Characters and worldview Illustrations for y'll! [Exclusive illustrations] -2.2k words per chapter for the first 10 chapters of the story. -Consistent weekly updates for you all! -It's free and accessible to read. -Writing development. -Update every 6:55 P.M / 18:55 (UTC+08) ======= Discord: https://discord.com/invite/pZHbXYjz

Lucas—a sharp-tongued, fourth-wall-breaking pilot, and in his own opinion, the best pilot in the far future. In a universe where humanity has conquered galaxies, star systems, and built wormholes as intergalactic highways, his journey is anything but ordinary. This is a story about who Lucas was, and what he is destined to become. Along the way, there will be friendship, love, and deep sci-fi elements—all set against the backdrop of political battles between warring empires.

Samuel is simply an ordinary guy. He likes to read books, mainly sci-fi theme blended with a little bit of fantasy. He was... immersed, to say the least in his own little world, which gave him leverage in the reality of the world. He barely managed to enter the State University of what he wants. It was even the first time he took an effort to something. But in the midst of his daily routine. He found himself within the ship, barely gasping any air. Yes, he was abducted.

PROJECT REBOOT – SYNOPSIS The Zenith League—Earth’s greatest heroes—stood as the planet’s final defense. Now, they’re gone. A catastrophic alien invasion has wiped out the world’s protectors, leaving humanity on the brink of extinction. Governments crumble. Cities burn. Hope is dead. In a desperate move, the world's leaders activate Project Reboot—a last-ditch effort that no one wanted. With no heroes left, they turn to the most dangerous criminals alive. Enter Sparky, Dr. Nite, Miss Tarantula, Destro, Damon, and Saraya. Murderers, thieves, and psychopaths. Villains who never gave a damn about saving the world. Now, they have no choice. Strapped with explosive shock collars, watched 24/7, and given an ultimatum: Fight for Earth, or die. But as the battle rages on, these so-called villains start asking the real question: Why should we save a world that always wanted us dead? And worse… What happens if they win? PROJECT REBOOT HAS BEGUN.

In any place, planets in any universe and other worlds, if a threat comes from the outside, everyone will definitely unite to defend their land. And a planet called Earth, it's not exempted. Either luck or fate, human beings was able to discover something strange,,, an alien. The visit was secretive and unfriendly for the two parties to fight for their own believes. Fortunately, the human side was able to kill the lone intruder but loss many lives. With this encounter, the human race took it as a heads-up and made a lot of worldwide preparations; focusing in military and directly eliminate many civil matters. At that time, the main character was about to settle down, have a family on his own and enjoy the rest of his life but didn't expect for such a big thing to happen. Lucky he was, had an adventure for him to have the ability to protect his beloved and all the people around him. But one man can't cover the whole planet for many people to die and two-thirds of the land to be occupied by beasts sent by the invading enemy. Although humans had lost in the first war, they learn a lot of things for the rapid growth and develoment in different areas, especially in the field of Science and Technology. When the right time comes, it will be humans who will be on the offensive. For sure there's still a big gap to win against an enemy who got the lead, but human beings is a race that will never give up; will never let anyone get what theirs. But at the end, things sometimes won't go as planned to lose something,,, someone...

Umbrellas is a sci-fi fantasy novel set in a futuristic floating city in space, where an elite organization—also called Umbrellas—defends the universe from nightmarish alien creatures known as Annihiliths. Clark Smith, an ordinary man from Earth, suddenly finds himself in the body of Donovan Volgard, a reserved and mysterious Mage-type Visitor—one of Umbrellas’ elite operatives. With no idea how or why he ended up here, Donovan must think fast to avoid suspicion. He soon realizes that while he has access to the original Donovan’s memories, his personality remains his own. Forced to play along in this unfamiliar world, he takes his first steps into a life filled with magic, mystery, and interstellar danger—while secretly searching for a way back home.

one night Dan Smith was found dead, police said it was a suicide but his friends didn't think so. Adi, Anne, and Peter had started to find some clues that Dan left for them before committing suicide. What happened to Dan? Was it a suicide or murder? cover design by Mashy Yom

Chaotic Existence In a high modern sci-fi fantasy world teetering on the edge of collapse, Lucian, an aloof anti-hero, carries the soul of Tiamat—the ancient Primordial Dragon Queen—sealed within him. Hunted by gods, empires, and phantasms, Lucian fights to reclaim fragments of Tiamat’s shattered body and the truth of his existence. Torn between destiny and defiance, he rejects the control of those who see him as a weapon or savior, instead forging his path in a reality rife with corruption, exploitation, and cosmic conflict. Blending myth, quantum science, and raw emotion, the story delves into themes of identity, rebellion, and the chaotic struggle for freedom. With allies forged in the fires of their own struggles—a psychic prodigy, a jaguar beast-man, and a hot-tempered blacksmith among them—Lucian faces a vast universe of gods, monsters, and creators determined to bend him to their will. But in a world of chaos, only one truth matters: his. https://www.royalroad.com/profile/597441

In the dystopic world of 2072 ravaged by a ruthless war, Mike is a cyberknight fighting for a regime which promises justice and reforms to a broken world. However, virtue is a fragile concept, especially for an empire built on lies. Eventually, corrupt minds filled with delusion and madness will reveal themselves. When the masks drop, will there still be peace or a future? Blessed are those who can dream, condemned are those who remain in reality. In the dark, resolve is the only path forward. This novel combines fantasy and sci-fi into a story you have never seen before. Give it a try and you will stay for the plot and the high-intensity actions.

Chronicles of the Forsaken follows Seraphina Valemont, a feared villainess born into a corrupt royal family. Once an ordinary woman obsessed with sci-fi novels, her life takes a dark turn when a car crash sends her into the very world she once read about—trapped in the body of its most despised character. Marked by a bloodline curse, Seraphina must navigate deadly court politics, uncover buried family secrets, and survive a kingdom on the brink of war. As rebellion brews and betrayal lurks in every shadow, she forms a fragile bond with a mysterious figure—her enemy, her fate, and perhaps her only salvation. With love, power, and destiny at war, Seraphina faces an impossible choice: embrace the villainess she was meant to be or fight for a future beyond the chains of fate. But in a world where monsters wear crowns, is redemption even possible?

****** Zazm Mystic a young and energetic highschooler, who has developed a great interest in the laws of universe. His love for maths and his curiosity for universe always kept him occupied in books. His childhood friend Jahanox Nova, who is in the same grade as him is the top student of the class. One day Zazm suddenly finds a letter in his back, he initially thought it was a love letter but when he opened it the content of letter was "Once you fall into slumber tonight, your world shall change." He felt confused as to what that letter meant. Until he woke up the next day to realize what it was. (A/N: This will a Sci-fi novel and will be mainly based of adventure and stuff. There won't be any romance in particular. No BL, No GL and No Harem)

Isekai, self-insert MC, overpowered, science fiction, strategy and spaceship battles. Chat-GPT for chapter 1-8. Starting from chapter 9, I will properly write. This is for anyone who see all of that and are still interested: I want to make a novel with as realistic physics as possible. I will, almost definitely, create a bunch of magical sci-fi stuff, especially later on, but I will try to stick to established rules as much as possible. Much of the orbital mechanics and warfare is learnt from the game Children of a dead Earth and Kerbal Space Program. This is my very first book, so expect no planning and shitty execution, even with GPT.

idk

Like every typical otome isekai story, the story follows a woman finds herself reborn as the villainess. But this isn’t your everyday story where you find on the internet. There is no proving her innocence. No changing fate. No escaping the role she has been given. Instead, she must play the villainess perfectly—or suffer the consequences. Any attempt to act out of character results in unexplainable punishments, not just for herself, but for those she cares about. The world itself demands that she follows the script, forcing her into a life of cruelty, betrayal, and inevitable ruin. But if she is doomed to be the villainess… then she will become one on her own terms. In a world that won’t allow her to be anything else, she will play the role so well that even fate will regret cursing her. Join me in this untold story of a destined woman who must traverse the pearls the world has given her.

**Taking part in the WPC [Oct-Nov] themed: Apocalypse** The sky turned an otherworldly shade of purple. The heart of the city morphed into an ancient temple. Futuristic skyscrapers enclosed the once-familiar streets. Reality itself was unraveling, space and time thrown into chaos. Apocalypse had descended upon the world. But for Kayne, an avid reader of fantasy and sci-fi tales, this was more than just a nightmare—it was an adventure of epic proportions. He had always dreamed of stepping into the pages of his favorite books, but this was no ordinary story. In this apocalyptic landscape, the boundaries of reality blurred, and the very fabric of the future was being rewritten. As the merging of parallel universes shattered the known world, Kayne and his close-knit group of friends found themselves at the center of this enigma. With each step they took, they delved deeper into a reality where magic and technology collided, where past and future coexisted, and where the fate of countless worlds hung in the balance. The apocalypse has arrived, but for Kayne and his friends, it's an adventure unlike any other.

Hác Nhân – tên gọi mà cũng phản ánh con người hắn – là một người tốt, khao khát sống một đời bình an. Hắn chọn con đường nghèo khó, không chạy theo của cải, nhưng lại không thể tránh khỏi việc phải làm chủ căn nhà nơi từng trú ngụ của một nhóm người có vấn đề tâm lý từ trước. Câu chuyện bắt đầu từ một tòa nhà cổ xưa, vắng vẻ với những phòng lớn, nơi cư ngụ của những sinh vật khác thường. Bên cạnh đó, có sự góp mặt của những người lao động hợp đồng được gọi là “Thần Minh”. Ba yếu tố này đã cộng lại tạo nên cho Hác Nhân danh tiếng là người chủ thuê nhà bận rộn nhất, với những vị khách trọ và người thuê nhà hỗn loạn, kỳ quái và hoàn toàn khác thường. “Từ khoảnh khắc tôi ký hợp đồng lao động vào ngày ấy, tôi đã biết ngay rằng mình đã bước lên con thuyền của bọn hải tặc!”

Known as "The Collector", Zein Karpa had an inventory worth millions in Age of Divinity, a Sci-fi, VRMMO game with over 500 million players. However, after months of being hunted by the ten great guilds, Zein decided to surrender, losing it all. Purposeless, Zein deleted his character and became a clerk at a sports store. 1 year later, Age of Divinity announces its largest expansion yet. Babel. With a renewed sense of adventure, Zein dives into the game once more. Will he be able to explore all its universe has to offer or fall prey to the powers who once deemed him a nuisance?

Ranma di reinkarnasi ke dunia crossover anime sebagai Kamijou Touma, bagaimana nasib Ranma yang sebelumnya penuh dengan kekacauan menjadi jauh lebih kacau di dunia yang baru? Tokoh dari banyak anime lain juga akan muncul di novel ini!

Zih Lung had a sad life he was put in an ophanage after his parents overdosed, his girlfriend left him for his brother. His brother spreaded rumoures about him and this made him lose all his freinds. Alone, Lost and betrayed Zih lung had nothing but manga and sci-fi To keep him Moving. But everything changed when Truck-kun arrived A greek deity (Hades) felt pity for the human. It reminded him of the back stabing his brothers did to him after forcing him to self isolate for eons. He gave him a System one that allowed him to reanimate the dead and manipulate them on the cellular level. Read this story to find out how he Goes from world to world Traveling the universe to fulfil his Goals. #Worldbuilding #Zombie #Action #Fantasy #Romance #Undead

A Tik-Tok style anthology of 100 word stories of fiction, horror and Sci-fi.

Dưới lòng đất của Heyse tồn tại một thế giới đen tối và quỷ bí, nơi những hòn đảo thần bí đầy rẫy sợ hãi, dị dạng và quái vật. Tại đây, loài người không phải là trung tâm của câu chuyện, mà chính sự điên cuồng và cái chết mới là điều thống trị. Những kẻ yếu đuối dưới đáy biển chỉ biết cầu xin trong tuyệt vọng, nhưng điều đó chỉ khiến họ càng chìm sâu vào bóng tối và trở nên méo mó. Nếu muốn khôi phục lại vinh quang từng có của nhân loại, chỉ có cách lái những con tàu hơi nước, mang theo ý chí quyết tử, và tiến vào vùng địa hải nguy hiểm! Dịch giả Một bộ truyện của Hồ Vĩ Đích Bút (TG: Đạo Quỷ Dị Tiên). Style của tác này thích viết về những chuyện kỳ dị, khó hiểu, khó giải thích, khó tưởng tượng. Truyện thiên về khám phá, pha lẫn kinh dị giật gân. Bộ này bên Trung được đánh giá khá cao (xấp xỉ quỷ bí chi chủ của lão mực), mà không biết sao không có người dịch, nên mình xin phép dịch bộ này. Anh em ủng hộ nhé! P/S: Mình có để chương trình giảm giá sâu cho các bạn đề cử kim phiếu cho bộ này. Mại dô, mại dô!

Sequel The Last Prince Sci-Fi Fantasy Xavier perlu bertahan hidup dari keluarganya sendiri dan seorang entitas yang bernama Morgan yang membuka portal multivers kehancuran yang retak agar moster parasit bisa mengivaksi bumi, bahkan ingin mengeluarkan semua penjahat Multivers yang berada di tahanan Multivers, Morgan hanya ingin menghancurkan dunia pararel satu persatu agar bisa membuat pararel Baru dan bisa memimpin dunia, dengan menjebak pengikut dewa waktu. siapa itu Morgan? apa yang Morgan inginkan Dari Merlin?