Apocalyptic and post-apocalyptic fiction

Apocalyptic and post-apocalyptic fiction are kinds of stories that deal with what would happen if the world changed in a big way. An apocalypse is a huge event that causes things to be very different, like a lot of destruction or a huge storm. Post-apocalyptic stories are set after an apocalypse, usually with the world looking very different and people struggling to survive. In these stories, the characters often have to fight for food, shelter, or even just safety.