While it might seem like a brand new Minecraft map is random, there’s a lot of math happening under the hood to ensure that mountains look like mountains, rivers look like rivers, and jungles don’t bump up against icy tundra. Because Minecraft seeds are predictable, you can do a lot of stuff with them, like restarting the same base Minecraft world on a new server or sharing them with your friends. One of the most useful things you can do, though, is use the seed information to generate a seed map. In this guide, we’ll learn what a seed is, how to find it, and just what you can do with a seed map.
What is a Seed?
As we hinted above, Minecraft maps are not truly random or infinite. There are about 18.4 quintillion possible seeds that you could plug into Minecraft for different worlds. Some will be very similar, others will be wildly different. This is not coincidentally the same number of planets in No Man’s Sky. These numbers are generated using a 64-bit number space, which starts at 0 and goes all the way up to, you guessed it, 18.4 quintillion, or 264.
Minecraft uses a complex algorithm to make sure you’re getting as few random floating blocks or out-of-place objects as possible, and the seed, in essence, tells Minecraft what math problem to do to generate your world.
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