First, a great alien invasion book needs a unique concept for the aliens. For example, in 'The War of the Worlds', the Martians are technologically superior and have a completely different biology. Second, it should have engaging characters. In 'Ender's Game', Ender is a complex and relatable character that draws you into the story. Third, the plot should be full of tension. 'The Day of the Triffids' keeps you on the edge of your seat as the triffids are slowly taking over the world.
Alien invasion in contemporary science fiction can be seen as a metaphor for modern-day threats. It might represent environmental disasters or the power of large corporations. Writers use it to make people think about how we would respond to an overwhelming, external threat.
One of the best is 'War of the Worlds' by H.G. Wells. It's a classic that has influenced many later works. The story of Martians invading Earth is both terrifying and thought - provoking. Another great one is 'The Day of the Triffids'. It combines the horror of alien - like plants taking over with a post - apocalyptic setting. 'Independence Day' also has a great book adaptation which shows a large - scale alien invasion and how humanity unites to fight back.
The two novels that I recommend to you are the Universe Martial God System and I Summon the System to Protect Mankind. " Universe Martial God System " described how after the Zergs invaded Earth, the protagonist Qin Hao became a Martial God through the magical system and contributed to the resistance against the Zergs. " I Summon the System to Protect Humanity " was about Chu Xiu crossing into a world that was invaded by foreign races and extracting talents to serve him by killing foreign races to obtain soul points. These two novels were based on the system, allowing the protagonist to gain powerful strength against the background of the invasion of the alien race and make efforts to resist the invasion of mankind.
One day, out of the blue, strange ships appeared in the sky above major cities around the world. These were the ships of the Zorgon aliens. They landed and immediately started attacking. Their weapons were like nothing Earth had ever seen, shooting beams of green energy that could disintegrate buildings in an instant. But humanity wasn't going to go down without a fight. A team of elite soldiers was assembled. They managed to capture one of the smaller Zorgon ships and reverse - engineer some of its technology. With this new - found tech, they launched a counter - attack. In a final showdown, they managed to drive the Zorgon invaders back into space, saving Earth for now.
One common trope is the advanced technology of the aliens. They usually have far superior weapons and ships, like in 'Avatar' where the humans are outmatched by the Na'vi's connection to their planet's energy.
One great book is 'War of the Worlds' by H.G. Wells. It's a classic that depicts a terrifying alien invasion on Earth. The aliens in this book are highly advanced and their weapons are far beyond human comprehension at first. Another is 'The Invasion of the Body Snatchers' which has a very unique concept of aliens taking over human bodies in a rather insidious way. And 'Independence Day' novelization also makes for an exciting read, with its large - scale battles against the invading aliens.
One common theme is the battle for survival. Humans have to fight against the technologically advanced aliens to save their planet. Another theme is the exploration of human nature. In the face of an alien invasion, people's true characters, like courage or cowardice, are revealed. Also, the concept of unity is often explored. People from different backgrounds must come together to resist the alien threat.
Some good alien invasion fiction books include 'Invasion of the Body Snatchers' which is really creepy as it shows aliens taking over people's bodies. 'Annihilation' by Jeff VanderMeer is another interesting one. It's set in a strange, otherworldly area that has been invaded by something not quite normal. These books are great because they often explore human nature in the face of such extreme threats.
I think 'Independence Day' is also very popular. The idea of a global coordinated effort to fight off the aliens is really exciting. And the huge alien ships hovering over major cities is a very memorable image from both the movie and the novel. Additionally, 'The Invasion of the Body Snatchers' has a certain popularity because of its creepy concept of the aliens taking over humans without them even realizing it at first.