If you happen to have generated a particularly interesting world, sharing its seed with others is a great way to let them play in it (on their own systems). That said, you can also get the seed value of your own world and share it with others. You can seed worlds in Minecraft to get worlds that have specific biomes that you’d like to play in. A seed is a value that Minecraft’s algorithm uses as an origin point to create the rest of the world. No two worlds created in Minecraft are identical unless you use the same seed for them.
