Multi-World Manual
Youer's world-management feature lets you easily manage multiple worlds in-game — no server shutdown, no file editing; everything is done inside the game.
Quick Start
After joining, type this command to open the world-management GUI:
All worlds on the server are listed on screen; click one to teleport there.
All Commands
Common Operations
| Command | Effect |
|---|---|
/worlds gui | Open the GUI; all worlds at a glance |
/worlds list | List all loaded worlds in chat |
/worlds | Without arguments, shows help |
Create & Import Worlds
Create a new world
After typing, a selection GUI appears; pick a terrain type. Supported terrains:
- Normal — same terrain as the overworld
- Nether — hellish red-and-black-stone style
- End — obsidian pillars, chorus-fruit style
- Custom — special dimensions added by mods
- Void — nothing but a small spawn platform; good for skyblock servers
- Super-flat — endless flat ground; good for building
Import an existing world
If you already have a world save in the server folder, use this command to add it:
Tip: put the world folder in the server root directory; just write the folder name in the command.
Teleport
| Command | Effect |
|---|---|
/worlds tp <world-name> | Teleport to a world's spawn point |
/worlds spawn | Return to the current world's spawn point |
/worlds tp <player> <world-name> | (console) send a specified player to a world |
Delete & Unload Worlds
⚠️ This command directly deletes the entire world folder — buildings and items are gone, unrecoverable! It's recommended to unload with
unloadfirst, and only delete the folder manually once you're sure.
Only detaches it from the server; the files stay on disk and can be imported back later.
The overworld cannot be deleted or unloaded.
World Settings
Set the spawn point
Stand where you want, then run this command; future teleports to this world will appear here.
Give the world a Chinese name
This displays the Chinese name in the GUI, easy for players to understand.
Write a description
This text shows in the GUI, helping players understand what the world is for.
Adjust difficulty
| Number | Difficulty |
|---|---|
| 0 | Peaceful (no mobs spawn) |
| 1 | Easy |
| 2 | Normal |
| 3 | Hard |
Set the world's game mode
| Number | Mode |
|---|---|
| 0 | Survival |
| 1 | Creative |
| 2 | Adventure |
| 3 | Spectator |
This setting applies to all non-OP players. For example, if you set the skyblock world to 0 (survival), every player entering it is auto-switched to survival; OPs are unaffected.
GUI Details
World List (/worlds gui)
When opened, each world shows as an item displaying:
- 🌍 World name (shows your set name if it's Chinese)
- 💬 Description — what you wrote via
addinfo - 📏 Border size — how far the world extends
- 🏞️ Terrain type — normal/nether/end/void, etc.
- ⚔️ Difficulty — peaceful/easy/normal/hard
- Mod-added or plugin-created worlds are also marked
- Whether it's void or super-flat is also visible
Click to teleport there.
Create-World GUI (/worlds create <name>)
After the command, an item-selection GUI appears; each item represents a terrain type:
| Terrain | Icon |
|---|---|
| Normal | Grass block |
| Nether | Netherrack |
| End | End stone |
| Custom | Structure void |
| Void | Barrier |
| Super-flat | Green carpet |
Pick one and the world is auto-created with a random seed.
Where the Config File Is
All world settings are saved in youer-config/worlds.yml. Generally you don't need to edit this file manually — everything can be done with in-game commands. If you really must edit it yourself, it looks roughly like this:
Permissions
| Permission node | Who has it |
|---|---|
youer.command.worlds | Players with this node can use the /worlds command |
Players without permission can't use /worlds. Console and OPs have all operation permissions by default.
FAQ
Can a deleted world be recovered?
No. /worlds delete wipes the world folder clean. If you're unsure, use /worlds unload first to keep the files, and import it back later.
How do I make players auto-switch mode when entering a world?
Use /worlds gamemode 0 to set the world to survival; all non-OP players entering will switch to survival, OPs unaffected.
What's special about mod-added worlds?
Mod-added worlds don't auto-load at startup (the mod loads them itself). If the corresponding mod is uninstalled, these worlds' configs are cleaned up automatically, leaving no pile of invalid data.