Set up your Astroneer server

This guide is based on a real OmneHosting Astroneer server.

Step 1: Fill in the required settings

The Startup page will not save until these three settings are filled in:

Setting	What to enter
Public IP	The address players use to join. It must be the same address you give your players.
Server Owner Name	Your Steam username.
Server Owner Guid	Your Steam ID, the long number that identifies your Steam account.

The owner you enter becomes the owner and administrator of the server. Set the Server Name to something players will recognise. It starts as Pterodactyl hosted Server. You can also set a Server Password, which allows letters, numbers, dashes, and underscores.

Step 2: Install and start

The game files are about 2.5 GB, so the first install takes several minutes. Astroneer is a Windows game, and the panel runs it through Proton on Linux. The first start also downloads a runtime image of about 535 MB and creates a small Wine folder, so the first start takes longer than for other games.

Press Start and watch the Console. You should see:

Success App '728470' already up to date.
Starting server...
proton run ./Astro/Binaries/Win64/AstroServer-Win64-Shipping.exe

Note

Astroneer prints very little to the Console. The status may stay on Starting for a while even when the server is working, and the Console can stop at a line about wineserver. If the server has been on Starting for more than a few minutes and players cannot join, open a ticket with your server name. See Contact support.

Step 3: Every player edits one file

To join a dedicated server, each player must edit a file on their own PC before starting Astroneer:

1. Close Astroneer.
2. Open %LocalAppData%\Astro\Saved\Config\WindowsNoEditor\Engine.ini.
3. Add these lines at the end and save:

[SystemSettings]
net.AllowEncryption=False

Without this, the game cannot connect to the server, even when the server is online.

Where things are saved

File	What it is
Astro/Saved/Config/WindowsServer/AstroServerSettings.ini	Your server settings: Public IP, owner, name, password, and save settings.
Astro/Saved/Config/WindowsServer/Engine.ini	Network settings. The panel puts your assigned port here.
Astro/Saved/SaveGames/	Your saves.

The settings file starts with autosave every 900 seconds and a backup save every 7200 seconds (2 hours). Because the panel writes some of these values on each start, change Public IP, owner, name, and password on the Startup page and not in the file.

Problems? See Astroneer server problems and Astroneer server settings and options.