The following suggestions could be used to write apocalyptic novels: 1. Search for inspiration: The inspiration for doomsday novels can be obtained from various sources such as science fiction, horror novels, historical novels, etc. Inspiration could also be found from some events and social phenomena in life, such as disasters, wars, diseases, and so on. 2. Decide on a theme: Before writing a doomsday novel, you need to decide on a theme such as saving mankind, extinction, survival struggle, human nature, etc. Choosing a theme could help better organize the story and shape the character's image. 3. Find characters: The characters in the apocalyptic novels are very important. They need to have distinct personalities and characteristics that make it easier for readers to resonate with them. You can find characters in different ways, such as finding them from existing novels or creating new characters yourself. 4. Confirm the worldview: The worldview of the post-apocalyptic novel is very important. It needs to be logical and reasonable. The world view should be able to explain the causes of the apocalypse, including why humans encountered the apocalypse and what the world would become. 5. Consider the rhythm and plot: The plot of a post-apocalyptic novel needs to have enough tension and conflict, but at the same time, it needs to maintain a stable rhythm and not be too dragged out. The plot could include various events and scenes such as war, disease, disaster, human nature, and so on. 6. Pay attention to character shaping and language style: When writing a post-apocalyptic novel, you need to pay attention to character shaping and language style. The characters should have enough depth and complexity for the reader to truly understand and feel their emotions and thoughts. The language style should be as concise and clear as possible while maintaining its liveliness and expressiveness.