best public domain science fiction books

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.

"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."

After losing his parents in a car accident, Ryan immediately caught his fiancee cheating on him with his best friend. In just a few days, he lost everything he loved, so Ryan decided to buy a house in the mountains to process all those events. However, something happened before he could even enter his new home: the end of the world. Monsters began to appear out of nowhere, and dragons began to dominate the skies. After losing everything, Ryan, who had lost his sense of reality, found new goals with the world in that state: survive and get stronger. Dungeons, classes, monsters, skills, the chance to obtain the DNA of other monsters... Ryan was decided to use them all because he no longer would become a spectator in his own life. Maybe with power, he won't lose anything anymore. The story, all names, characters, and incidents portrayed in this production are fictitious. No identification with actual persons (living or deceased), places, buildings, and products is intended or should be inferred.

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..."

Chen Gu has transmigrated to a future world where some have superpower. They could release nuclear blasts barehanded; manipulate quantum teleportation to achieve instantaneity; exhale particle winds that could melt metal like dragons; and control human thoughts as a hacker does computers... But the first thing Chen needs to deal with is that he somehow has a forty-year-old son. "Are you saying... you are my father?" "No, I am your son."

Glenn (Bloed) was abandoned by his family in the Exiled Lands, one of the most dangerous places of the world; where his inability to use magic meant that only death awaited him. However, an encounter with the remains of a completely different civilization was going to change his life forever. When science and magic met, the fate of the world started to unfold. ... Follow my other story in webnovel: Fourth Prince's Debauchery. Support me on P4TRE0N: patre-on.com/aidnovels

Chu Hao has traveled to a different world where everyone has the opportunity to become a god. And everyone here can design their own exclusive world of God's Domain! Beautiful and delicate fairy world? The majestic dragon's nest plane? The ancestral witch world in the beginning of chaos? These are too weak, my design is an endless abyss! Here is the endless, suffocating horror land! Here is a place where the environment is extremely harsh and life is extremely dangerous! This is a place where there is no morality and never stops killing! This is the home of the abyss demons and the final destination of the chaotic evil spirits! ———————— not my novel!!!!!!!! Genre: FantasyUrban Tags: No RomanceStrong to StrongerSystemTransmigrated ProtagonistEvil ProtagonistMale ProtagonistGod Ability ———————— not my novel!!!!!!!! ———————— not my novel!!!!!!!! ———————— not my novel!!!!!!!! ———————— not my novel!!!!!!!! ———————— not my novel!!!!!!!! ———————— not my novel!!!!!!!! ———————— not my novel!!!!!!!! Author: Lord Of Ravens

Ray Kaine, a skilled fighter turned office worker, finds himself on a bus, and after a terrible accident ends up in front of a god, who informs Ray that he himself shall now become a god.

This is a world where science and magic coexist. Some people here seek powerful magic, and some seek eternal truth. A science tyrant who came from another world, started as a little librarian, with magic in his left hand and truth in his right, kicking the door of the new century with one kick. Some people call him the forerunner of magic, some say he is the founder of science. Some people describe him that way. In the new century, Blair is a symbol of evil.

[Large-scale Male Competition and Asura Field, Multiple Male Leads] [Ditzy Beauty x Gloomy Male Ghost/Black-Bellied Older Man/Pure Love Loyal Dog/Unhinged Arch-Nemesis/Clingy Younger Puppy] Zoe Rhodes dies unexpectedly in a car accident. Before her death, she awakens her consciousness and discovers that the world she lives in is a tragic, angsty BE novel. Several villains imprison the female lead, causing the male and female leads to break up and get back together for many years, and in the end, they even drive the male lead to his death. The good news is, she's just an insignificant cannon fodder. The bad news is, her brother is that wronged male lead! Zoe Rhodes's vision goes black. When she wakes up, she has transmigrated ten years into the future. To protect her brother, she starts desperately trying to make her presence known among the villains, hoping they can turn over a new leaf. Through Zoe Rhodes's unremitting efforts, her brother is safe! The female lead is safe! She is also sa... wait, that's not right?!! Can someone please tell her why, after waking up from a nap, she finds herself lying in the villains' basement?! Zoe Rhodes: I don't know either. They started shouting something about a "white moonlight" and a "cinnabar mole" and then lined up to kiss me. [This is probably a story about a ditzy beauty who tries to tame the villains, only to discover that she is their long-dead "white moonlight", and all the villains are lining up, fighting to be her dog.]