Creating a flat world in Minecraft is a great way to build large structures or experiment with different building techniques without having to worry about terrain generation. Flat worlds are also useful for creating custom maps or minigames.
To create a flat world, first open the Minecraft launcher and click on the “New World” button. Then, select the “Flat” preset from the list of world types. You can also customize the world’s settings, such as the size of the world and the type of biome that you want to generate.