Astroneer Dedicated Server: AstroServerSettings.ini Guide
Data Verified: May 2026Complete Astroneer dedicated server reference. Configure AstroServerSettings.ini, claim owner, set max players, port forwarding, AstroLauncher tips, and right-size hardware for stable Windows servers.
Commands & configuration database
| Command | Default Value | Description | Action |
|---|---|---|---|
OwnerName | (empty) | Steam display name of the player who becomes server admin on first join. | |
ServerName | Astroneer Dedicated Server | Public server name shown in the in-game browser. | |
ServerPassword | (empty) | Password required to join the server. | |
MaxServerFramerate | 30 | Tick rate cap. 30 is recommended; 60 doubles CPU cost. | |
MaxServerIdleFramerate | 3 | Tick rate when no players are online. | |
PublicIP | (empty) | Public IPv4 the server advertises. Set when behind NAT. | |
Port | 7777 | UDP gameplay port. | |
ConsolePort | 1234 | Optional console/AstroLauncher port. | |
MaxConnections | 8 | Concurrent player cap (hard limit 8). | |
bUseSteamP2P | False | If True, requires Steam friend invite; if False, allows direct-connect IP. | |
AutoSaveGameInterval | 900 | Auto-save interval in seconds. | |
ActiveSaveFileDescriptiveName | SAVE_1 | Active world save name under `Saved/SaveGames/`. |
Showing 12 of 12 configuration parameters.
| Command | Default Value | Description | Action |
|---|---|---|---|
| No commands match your search. | |||
Showing 0 of 0 admin console commands.
Recommended hosting providers
Vetted hosts with one-click Astroneer installs. Links are affiliate placeholders and marked rel="sponsored".
Hardware specifications
Sizing guidance for self-hosting a Astroneer dedicated server.
| Tier | Specification | Use case |
|---|---|---|
| Small (2-4 players) | 4 GB RAM / 2-core 3.5 GHz+ CPU | Early-game bases, light terrain deform. |
| Standard (6-8 players) | 8 GB RAM / 4-core 4.0 GHz+ CPU / SSD | Established bases with heavy terrain edits. |
| Long-running (8 players, big saves) | 16 GB RAM / 4-core 4.5 GHz+ Dedicated Node / NVMe | Astroneer saves balloon with terrain modifications; NVMe helps load/save times. |
Default file locations
Default installation paths for Astroneer dedicated servers installed via SteamCMD.
Windows
C:\AstroneerServer\Astro\Saved\Config\WindowsServer\Linux
Wine/Proton only, no native Linux buildPro-Tip: Always stop the server completely before editing configuration files, or the server will overwrite your changes upon restart.
Default ports for port forwarding
Open these on your router and firewall before exposing the server to the internet.
| Service | Protocol | Port |
|---|---|---|
| Game Port | UDP | 7777 |
| Query Port | UDP | 27015 |
| RCON / Telnet | - | N/A (use AstroLauncher web API) |
Quick start: launch your Astroneer server
Copy-paste these two commands to install and start a Astroneer dedicated server. Tested against SteamCMD on a fresh box.
Step 1, Install via SteamCMDSteam App ID 728470
steamcmd +@sSteamCmdForcePlatformType windows +force_install_dir /home/steam/astroneer +login anonymous +app_update 728470 validate +quitStep 2, Launch the Astroneer server
cd /home/steam/astroneer && wine AstroServer.exe -logNote: System Era ships no native Linux binary. Run the Windows build under Wine/Proton. Most managed hosts use Windows Server 2019/2022 to avoid Wine entirely.
Step 1, Install via SteamCMDSteam App ID 728470
steamcmd +force_install_dir "C:\AstroneerServer" +login anonymous +app_update 728470 validate +quitStep 2, Launch the Astroneer server
"C:\AstroneerServer\AstroServer.exe" -logNote: Run once to generate AstroServerSettings.ini, then set OwnerName= and restart. Many admins wrap this in AstroLauncher for auto-restart and updates.
Starter AstroServerSettings.ini
A working baseline config with sensible defaults for Astroneer. Copy it, tweak the marked values, and drop it into your server directory.
[/Script/Astro.AstroServerSettings]
OwnerName=YourSteamDisplayName
MaxServerFramerate=30.000000
MaxServerIdleFramerate=3.000000
bLoadAutoSave=True
MaxConnections=8
ServerName=My Astroneer Server
ServerPassword=
PublicIP=
Port=7777
ConsolePort=1234
ConsolePassword=
ServerGuid=
ActiveSaveFileDescriptiveName=SAVE_1
ServerAdvertisedName=
AutoSaveGameInterval=900
BackupSaveGamesInterval=7200
ServerGuid=
VerbosePlayerProperties=True
EnableAutoRestart=True
AutoRestartFirstTimeUTC=08:00:00
AutoRestartGameTimeInterval=24:00:00
bUseSteamP2P=False
Frequently asked questions
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