Run multiple worlds on one Minecraft server with Multiverse

1. Check that the server runs Paper or Purpur in Settings. Multiverse is a plugin and does not run on Fabric or Forge.
2. Open the Plugins tab and search the Plugin catalog for Multiverse-Core. Install it.
3. Restart the server.
4. Type mv list in the Console. It lists the worlds Multiverse knows: your normal world, Nether and End.

Commands in the console go without the slash; in the game, type them with a slash as an operator. Other staff need the matching multiverse. permissions, which you give with LuckPerms.

mv create creative normal
mv create mining normal -s 12345
mv create builds normal --world-type flat --no-structures
mv create arena_nether nether

Use short names without spaces. The world appears as a new folder next to world in the Files tab.

To add a world you already have, such as an old map or a downloaded map:

1. Upload the world folder to the top folder of the server in the Files tab. The folder must contain level.dat directly, not inside another folder.
2. Type mv import oldmap normal, with the folder name and the kind of world.
3. Type mv tp oldmap to check it.

A world from an older Minecraft version is upgraded when it loads. Keep a copy first. Move your world to our server covers uploading large world folders.

Players without staff rights usually travel with portals or with warps from a plugin such as EssentialsX, so they cannot pick any world they like.

Multiverse keeps the settings of every world in plugins/Multiverse-Core/worlds.yml. Each world has a section with lines such as these:

creative:
  difficulty: peaceful
  gamemode: creative
  pvp: false
  allow-flight: true
  hunger: false
  auto-load: true

1. Open plugins/Multiverse-Core/worlds.yml in the Files tab.
2. Change the lines under the world's name.
3. Save, then type mv reload in the Console, or restart the server.

/mv modify changes the same values in the game; /mv help modify shows its exact form. Players switch to the world's gamemode when they enter it, unless they have the permission to keep their own.

On Minecraft 1.21.11 and newer, PvP is also a game rule. Multiverse can set game rules per world, such as mv gamerule set minecraft:pvp false creative.

mv delete asks you to type mv confirm with a code it shows. Make a backup in the Backups tab before deleting a world anyone has built in. A monthly resource world is the usual case: delete it and create it again with the same name.

All four are in the Plugin catalog. Install the same major version as Multiverse-Core. Multiverse-Inventories matters as soon as you have a creative world: without it, players carry creative items into survival.

A world costs memory for the chunks that are loaded in it. A world with nobody in it keeps few or no chunks loaded and costs little. A world with players costs about as much per player as your main world.

• Ten players spread over three worlds use more memory than ten players in one world, because they share fewer chunks.
• Set auto-load: false in worlds.yml for worlds you rarely use, and load them with mv load when needed.
• Big pre-generated worlds take up storage. They use memory once players walk in them.

Count the memory you need with how much RAM a Minecraft server needs. When the worlds should run separately, with their own plugins and restarts, a server network is the better fit.