DimensionAccess

DimensionAccess is a lightweight server-side Fabric mod that gives server operators full control over which dimensions players can access.

Features

• Disable any dimension - prevent players from entering specific dimensions such as the Nether or the End
• True cancellation - the teleport is blocked before it happens: no achievement, no chunk loading, no side effects
• Live reload - update the config without restarting the server
• Auto-complete - commands suggest valid dimension identifiers automatically

Commands

All commands require OP level 2.

Command	Description
/dimension disable "<id>"	Block a dimension (e.g. "minecraft:the_nether")
/dimension enable "<id>"	Re-allow a previously blocked dimension
/dimension reload	Reload the config from disk

Configuration

Blocked dimensions are saved in config/dimension_access.json and persist across restarts.

{
  "disabled_dimensions": [
    "minecraft:the_nether",
    "minecraft:the_end"
  ]
}

Requirements

• Minecraft 1.21.1
• Fabric Loader ≥ 0.16.9
• Fabric API