Walk across the relief model to the part of the Earth you want, then run /settle. A screen opens and describes that ground: its biome, its latitude and longitude, how survivable it is, what grows nearby, and what the local time is right now.
Confirm it and it is yours. This choice is permanent. Only an admin can change it afterwards, and we will probably say no.
What it decides
It decides where you respawn, and nothing else. You can travel anywhere and build anywhere. But geography drives everything here. What grows near you, what the rock under you is made of, and how hot or cold it gets all depend on where on Earth you chose. Read Crops grow where they really grow and Heat and cold will kill you before you pick somewhere that looks interesting.
Where you come back
When you die, the world tries these in order:
- Your bed or respawn anchor, if you have one. See Sleep, beds and where you come back for why that is harder than it sounds.
- Your town's spawn, if you are in one.
- A fresh point somewhere inside your homeland, picked again every time.
- World spawn.