/publish

This feature is exclusive to Java Edition.

 

{
    "title": "<code>/publish</code>",
    "rows": [
        {
            "field": "4",
            "label": "(link to Permission level article, displayed as Permission level<br>required)"
        },
        {
            "field": "No dedicated server<br>",
            "label": "(link to Commands#Restrictions article, displayed as Restrictions)"
        }
    ],
    "invimages": [],
    "images": []
}

Opens singleplayer world to the local network.

publish [<allowCommands>] [<gamemode>] [<port>]

<allowCommands>: bool

Whether commands are allowed when the world is hosted on the local network. Defaults to false.

Must be a [Boolean]Boolean (either true or false).

<gamemode>: gamemode

Sets the default game mode for new player. If not specified, the default game mode for new player is the game mode of this world.

Must be one of the following:

• survival for Survival mode
• creative for Creative mode
• adventure for Adventure mode
• spectator for Spectator mode

Note that "hardcore" is not a valid option, as it is technically not a game mode.

<port>: integer

The port to host on. If not specified, the port is automatically allocated, typically from an ephemeral port range.

Must be a [Int]32-bit integer number (from -2147483648 (-2³¹) to 2147483647 (2³¹-1) ). And it must be between 0 and 65535 (inclusive).