How to Configure Your Astroneer Dedicated Server (AstroServerSettings.ini)

Complete Astroneer server configuration guide — AstroServerSettings.ini and Engine.ini settings reference with every option explained.

Astroneer uses two config files for server settings:

AstroServerSettings.ini

Engine.ini

⚠️ Do NOT edit .ini files while the server is running. Changes will not be saved. Always stop the server first.

Editing Config Files

Stop your server
In the XGamingServer Panel, click Files
Navigate to Astro/Saved/Config/ (WindowsServer or LinuxServer depending on your setup)
Edit the file, save, and start your server

📝 Note: If the config files don't exist, run the server once and shut it down — they auto-generate on first launch.

Engine.ini — Connection Port

The game port is set in Engine.ini, not in AstroServerSettings.ini:

[URL]
Port=8777

This tells Astroneer which port to listen on for player connections. You must also ensure this port is open (UDP) in your firewall.

AstroServerSettings.ini — Complete Reference

Under [/Script/Astro.AstroServerSettings]:

Server Identity & Network

Setting	Default	Description
`ServerName`	`"Astroneer Dedicated Server"`	Name in the server browser
`ServerAdvertisedName`	`""`	Overrides ServerName for browser display if set
`PublicIP`	`""`	Your server's public IP — required for the browser to list your server correctly. Use Google "my IP" to find it.
`ServerPassword`	`""`	Join password (blank = public)
`Port`	`8777`	Game port (should match Engine.ini)
`ConsolePort`	`1234`	Remote console port (TCP) — do NOT expose publicly

Players & Ownership

Setting	Default	Description
`MaxPlayerCount`	`8`	Max concurrent players (hard cap: 8)
`OwnerName`	`""`	Steam name of the server owner
`OwnerGuid`	`""`	SteamID64 of the owner (auto-filled when owner first joins; set to `0` for auto-assignment)
`PlayerActivityTimeout`	`0`	AFK kick timeout in seconds (0 = disabled)
`DenyUnlistedPlayers`	`False`	Whitelist mode — only players in the approved list can join

💡 Tip: See Server Ownership for the full ownership setup guide.

Save Management

Setting	Default	Description
`ActiveSaveFileDescriptiveName`	`""`	Name of the active save file (without `.savegame` extension)
`AutoSaveGameInterval`	`900`	Auto-save interval in seconds (900 = 15 minutes)
`BackupSaveGamesInterval`	`7200`	Backup interval in seconds (7200 = 2 hours)

Save files are stored in Astro/Saved/SaveGames/. Backups are created in the same directory with timestamps appended to the filename.

Other Settings

Setting	Default	Description
`bDisableServerTravel`	`False`	Disable travel between planets
`VerbosePlayerProperties`	`False`	Enable detailed player logging
`ServerGuid`	`""`	Auto-generated unique server identifier

Required Ports

Port	Protocol	Purpose	Required?
8777	UDP	Game traffic	Yes
1234	TCP	Console/remote management	No — internal only

⚠️ Important: Only port 8777 UDP needs to be forwarded. The ConsolePort should never be exposed to the public internet.

Performance Notes

Astroneer servers consume 2–4 GB RAM baseline, growing to 6 GB+ as bases become complex
Large bases with many tethers and items are the main performance bottleneck — this is an engine limitation
Auto-save during complex worlds can cause brief lag spikes — consider increasing AutoSaveGameInterval for large saves
Always stop the server gracefully — forced shutdowns during auto-save can corrupt the save file

Example Configuration

[/Script/Astro.AstroServerSettings]
PublicIP=203.0.113.50
ServerName=XGaming Space Explorers
MaxPlayerCount=8
OwnerName=MyUsername
OwnerGuid=0
ServerPassword=
AutoSaveGameInterval=900
BackupSaveGamesInterval=7200
ActiveSaveFileDescriptiveName=MyWorld
DenyUnlistedPlayers=False
PlayerActivityTimeout=0
Port=8777
ConsolePort=1234

How to Configure Your Astroneer Dedicated Server (AstroServerSettings.ini)

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