How to run multiple crossplay servers in Valheim

Add -instanceid "1" to the server's launch options of the first server and -instanceid "2" to the next, so crossplay servers on one machine do not clash.

-instanceid

Sets a unique ID for each server when you host several crossplay servers with the same port from one machine.

-instanceid <id>

Examples

-instanceid "1"

First server.

-instanceid "2"

Second server.

Arguments

idRequired: Any unique value per server.

What it does

Servers on the same MAC address and port would otherwise share a PlayFab ID. Give each one a different value.

Good to know

Add it to the server start line in start_server.sh (Linux) or start_headless_server.bat (Windows); it applies on the next server start.

Run it on your server

Launch options go on the server's start line. Admin commands are typed in the in-game console (F5) by a player on the admin list. New to this? Start a Valheim server first.

Your own
Valheim server.

Start a Valheim server All commands

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