WorldLoader

WorldLoader is a server-side Fabric mod that keeps selected dimensions loaded even when no real players are online.

It does this by spawning an internal fake spectator player per configured dimension.

What it does

• Spawns one loader player in each enabled dimension.
• Keeps those dimensions active so chunk ticking and automation continue.
• Reuses existing loader players after restart/reload instead of creating duplicates.
• Places loader players at:
  • X/Z: the world respawn position
  • Y: fixed at -128

Configuration

WorldLoader uses a JSON config file:

• Path: config/worldloader.json
• Created automatically on first start.

Default config

{
	"enabledDimensions": [
		"minecraft:overworld"
	]
}

Options

• enabledDimensions: list of dimension ids to keep loaded.

Supported values include:

• Full ids, for example:
  • minecraft:overworld
  • minecraft:the_nether
  • minecraft:the_end
  • yourmod:your_dimension
• Aliases:
  • overworld
  • nether / the_nether
  • end / the_end

If the config is invalid or empty, WorldLoader falls back to loading only the overworld.

How to use

1. Install the mod on your server.
2. Start the server once to generate config/worldloader.json.
3. Edit enabledDimensions to match the dimensions you want loaded.
4. Restart the server.

Notes

• This is a server-side mod; clients do not need it.
• There are no user commands currently; configuration is file-based.
• Loader entities use internal names prefixed with #worldloader#.