Please recommend a hard science fiction novel similar to Earth being invaded.

This type of novel was generally called science fiction or futuristic novels. It usually described events and characters that would happen in the future. Among them, the plot of Earth being invaded by aliens and becoming a slave is more common. The following are some related novels: 1 "Galaxy Empire"(Isaac Asimov): This is a classic science fiction novel describing a huge interstellar empire that eventually collapsed due to internal strife, and the humans on Earth became prisoners of the empire. 2 "The Three-Body Problem"(Liu Cixin): This is a popular science fiction novel in China. It tells the story of the interaction and confrontation between the Earth civilization and the alien civilization. It also involves the plot of humans becoming slaves. 3 "Wandering Earth"(Liu Cixin): This is a science fiction novel about the end of the Earth. It tells about the extreme measures taken by humans to save the Earth, including the use of engines to push the Earth out of the solar system. "The Past of Earth"(Liu Cixin): This is a science fiction novel based on ancient Chinese myths and legends. It tells the story of humans using technology to resist alien invasion. 5 "Dark Forest"(Liu Cixin): This is a science fiction novel about an alien civilization invading the Earth, which also involves the plot of humans becoming slaves. These are some of the classic sci-fi stories, in which the plot and characters all contain elements of the Earth being invaded by aliens and humans becoming slaves.

😋I recommend Silent Starry Sky to you! This novel was about an alien civilization who deciphered the largest text database on Earth and was shocked to find that there were invincible experts on Earth who could cross the universe with their bodies and destroy planets with a single punch. As a result, they began to invade Earth. The male protagonist traveled back to the time before the invasion in such an environment and met a woman from a level-12 civilization. Hurry up and take a look. I hope you like my recommendation. Muah!😗

😋I recommend to you I Must Become Stronger. This is a fantasy novel about a high-level martial arts world. The plot of the novel was that Earth was about to be invaded by another world. In order to protect Earth and become stronger, the protagonist traveled through different worlds in pursuit of unlimited ambition. It showed a story of becoming a strong person. I hope you like this fairy's recommendation. Muah ~😗

Sure, there's still hard science fiction being written. Writers are constantly exploring and imagining new scientific concepts and their implications.

I recommend "Seal the World". The protagonist of this book can seal the entire world. It's a science fiction novel about evolution and mutation. It's very suitable for your needs. I hope you like this fairy's recommendation. Muah ~😗

I recommend "Demonic Altar". This book is a fantasy novel about a high-level martial arts world. After the protagonist transmigrated into a dangerous world, he obtained the abilities and talents of an anime character. He obtained exclusive skills by sacrificing monsters. The story is full of fantasy and combat elements. At the same time, it also has the world view and setting of a fantasy novel. I recommend it to you. I hope you like this fairy's recommendation. Muah ~😘

I recommend the novel "Time and Space Safe" to you. This is a hard science fiction novel written by the author, May May Does Not Know Spring. The protagonist started off as an ordinary programmer and traveled to different space-time and universes. He used the ability of the Space-Time Safe to solve many difficulties. The novel told a series of fascinating stories about science and technology, time and space, and human development. I hope you like my recommendation. Muah ~

This was a typical sci-fi novel. The plot was as follows: A few years after Earth was invaded by aliens, humans were forced to drift in the universe to find a new home. In this process, humans had contact and wars with other civilizations, including alien civilizations, creatures on other planets, and different races in the universe. Humans need to constantly adapt to new environments and lifestyle, and at the same time, they need to constantly learn and evolve in order to better cope with various challenges and threats. In war, humans need to constantly fight and defend against attacks from other civilizations. At the same time, they need to explore new weapons and technologies in order to defeat the enemy and protect their homeland. Eventually, human beings successfully found a new home and established a prosperous civilization. However, in this process, human beings experienced many difficulties and challenges, and they needed constant efforts and struggles to succeed.

Some well - known hard science fiction works are '2001: A Space Odyssey' by Arthur C. Clarke. It has a lot of scientific concepts like space travel and artificial intelligence.

I recommend the book "Time and Space Safe". It tells the story of Sun Wukong, who never bowed his head, and Pangu, who created the world. It tells the mysteries of a universe and some stories of parallel time and space. It is a hard science fiction novel of Journey to the West and Three Bodies. This book adopted a movie-like perspective, close to real battle scenes, and also paid great attention to the laws of natural science. It was very suitable for hardcore sci-fi readers. I hope you like this fairy's recommendation. Muah ~😗