🌍 Void's World — MultiWorld Mod

Import and explore multiple worlds as separate dimensions — all within a single Minecraft instance.

Void's World lets server owners import existing Minecraft world saves directly into their running server as live playable dimensions. Players can teleport between worlds instantly using simple commands, with each imported world keeping its own terrain, structures, and spawn point.

No restarts. No separate servers. Just /multiworld import and go.

✨ Features

Import any world save as a fully playable dimension
Separate dimension per world — terrain, chunks and POI data from the original world are preserved
Custom spawn points per imported world
Per-world settings — PVP, keep inventory, and gamerules configurable per world
Instant teleportation between worlds with a single command
Persistent imports — imported worlds are saved to disk and automatically loaded on server restart
Operator tools — teleport other players between worlds and back to the main world

🚀 Getting Started

Place your world folder (must contain level.dat and a region/ folder) inside your server's saves/ directory
Join your server and run /multiworld available to see worlds ready to import
Run /multiworld import <worldname> to import it as a live dimension
Run /multiworld tp <worldname> to teleport into it

That's it. The mod handles copying the world data and creating the dimension automatically.

📋 Commands

All commands are under /multiworld. Permission level 2 (operator) is required for management commands. Teleporting yourself only requires being a player.

World Management

Command	Description
`/multiworld list`	List all currently imported worlds
`/multiworld available`	List world folders in `saves/` that can be imported
`/multiworld import <world>`	Import a world as a live dimension (OP)
`/multiworld remove <world>`	Remove a world from imports (OP)

Teleportation

Command	Description
`/multiworld tp <world>`	Teleport yourself to an imported world
`/multiworld tp <world> <x> <y> <z>`	Teleport to specific coordinates in a world
`/multiworld tp <player> <world>`	Teleport another player to a world (OP)
`/multiworld tp <player> <world> <x> <y> <z>`	Teleport another player to specific coords (OP)
`/multiworld home`	Teleport yourself back to the main world
`/multiworld home <player>`	Teleport another player back to the main world (OP)

Spawn Points

Command	Description
`/multiworld spawn set <world> <x> <y> <z>`	Set the spawn point for a world (OP)
`/multiworld spawn set <world> <x> <y> <z> <yaw> <pitch>`	Set spawn with rotation (OP)
`/multiworld spawn get <world>`	Show the current spawn point for a world

Per-World Settings

Command	Description
`/multiworld gamerule set <world> <rule> <value>`	Set a gamerule for a world (OP)
`/multiworld gamerule get <world> <rule>`	Get a gamerule value for a world
`/multiworld gamerule pvp <world> <true\|false>`	Toggle PVP for a world (OP)
'/multiworld gamerule adventuremode <world? <true\|false>	To Stop BlockBreaking in a World (OP)
`/multiworld gamerule keepinventory <world> <true\|false>`	Toggle keep inventory for a world (OP)

Utilities

Command	Description
`/multiworld debug`	Show loaded dimensions and server level info

📁 How It Works

When you import a world, the mod:

Reads the world's level.dat for metadata (seed, spawn, settings)
Copies region/, poi/, and entities/ into your main world's dimensions/multiworld/<worldname>/ folder
Injects a live ServerLevel into the running server
Registers the dimension so players can teleport into it immediately

Imported worlds are saved to multiworld_config/imported_worlds.json and automatically reloaded on every server start.

⚙️ Requirements

Minecraft 1.20.1
Forge 47.4.x
Server-side only — no client mod required

⚠️ Notes

Imported worlds must be 1.18+ format (subchunk-based, 384 block height)
The world folder must contain at least level.dat and a region/ folder to be importable
Removing a world from imports does not delete its copied data from the dimensions folder
This mod is intended for server use — singleplayer support is not guaranteed