In which sci-fi novel did the protagonist save the earth with imaginary equipment?

Answer 1

"Trillions of Dollars to Buy Your Life" is a sci-fi novel written by the author, a cold-blooded patient. The general plot of this novel is:

He killed the alien who had fallen to Earth. He did not expect that he would drop equipment and lead the Earthlings to the peak of their lives. The aliens followed the traces, so I had to put up a trillion-dollar bounty to save my life...
----------------------------
"Infinite Cultivation and Technology" was a sci-fi time-travel novel written by the author, Legend of the Evil Shadow. The general plot of the novel was:

He held Yin and Yang in his hands, wore armor, and took it upon himself to save the myriad worlds!
----------------------------
Steel Earth was a sci-fi and ancient martial arts mecha novel written by the author, Mr. Childe Wuzhi. The general plot of this novel was:

In the year 2200 of the RV era, someone proposed a plan to recreate an "artificial Earth" in the face of the polluted Earth. However, the humans were not united because of this plan. The major factions were still fighting to the death for the remaining resources of the Earth circle. Humanoid weapons, this new weapon, were thrown into the battlefield...
----------------------------
"The Infinite Earth Rescue System" was a sci-fi time-travel novel written by the author, Hehe Method. The general plot of the novel was:

Chaos was eyeing Earth covetously! The Void Lord, the Subdimensional Evil God, and the Fallen Titan stared at the singularity of the universe!
10754 Earths were being invaded by Evil Gods!
Chosen ones, your mission and mission is to protect the Earth and protect your homeland.
----------------------------
Earth Civilization Upgrading was a sci-fi novel written by the author, Everyone Has Books. The general plot of the novel was:

The universe was essentially a multi-planet online game. Earth, as an unremarkable noob, was about to be forcefully PK by the big shots!Now you are Earth's "novice guide", you have to help Earth with skills, equipment, and dungeons…"The technology tree of your planet is very good, now it is mine." "Positron Siege Cannon, 1024x scope. Do you want to know?""I, the Earth Monarch, am not cheating!"
----------------------------
The book,"Made for Me," was a fantasy novel written by the author, Revived from Ashes. The general plot of this novel was:

Earth had to send people to participate in the arena regularly for the alien civilizations. Here, one could obtain incomparably powerful strength. It was like a game, with props, cultivation techniques, and weapons. When everyone thought that this was a happy place, the mastermind revealed his plot. It turned out that the strength of the Earthlings was only to be a better soldier and fight for them. The long-drawn war between genetics and science affected everyone. And an Earthling, You Mingming, became stronger step by step in this battle and walked towards something that no one expected. He sat on the throne of the highest star level and looked down at hundreds of millions of stars, ending this endless battle.
----------------------------
"The Mysterious Planet of Technology" was a sci-fi novel written by the author, Shui An Tianchen. The general plot of the novel was:

I wore beggar clothes, used an old phone, wore reading glasses, held an old umbrella, and rode a broken donkey. I looked like a poor loser who picked up trash, but who would have thought that with these trash, I would beat up hooligans, step on rich second-generation heirs, defeat the God of War, and fight the Fist King. Even the richest man in the world would have to bow to me when he saw me. I didn't even know that my lousy technology was already invincible! With the technological planet in hand, the world was mine! This was a story of picking up trash and finding invincibility! Recently, I created a fan group,[1050940823].
----------------------------
"My Black Technology Cheat" was a sci-fi novel written by the author, Lover's Knife. The general plot of the novel was:

After transmigrating, Qin Jian created a super high-tech group that spanned the four worlds of business, politics, military, and sect. It then became an existence that surpassed the entire world during the Third World War. Three-dimensional projections that replaced screens, unmanned vehicles that changed the way of travel, military drones that never landed, inexhaustible nuclear energy, real virtual worlds, quantum communication across space, electric currency that swept the world, mechanical armor that changed the form of war, biomedicals that integrated into human society, biotechnology that eliminated diseases, war fortresses that traversed the ocean, the invincible Savior Army...
----------------------------
"Universe War Simulation" was a game novel written by the author, Cellophane. The general plot of this novel was:

The world suddenly turned into a game world. Earth, the solar system, and the Milky Way were just a part of the map. At the same time, it also gave rise to various interstellar civilizations. How should the players on Earth develop their own armed forces in order to successfully protect Earth?
----------------------------
"Infinite Guardian of the Earth" was a novel written by Qiong Si. The general plot of the novel was:

Aliens always want to invade Earth? Did you get my permission? Among the men in black, he was Agent F. In Transformers, he was the crazy driver. In the Avengers, he was Superman who could arm-wrestle with the Hulk…This book was also known as Kill the Aliens and Earth Is My Domain.