Astroneer dedicated servers allow you to host persistent co-op worlds for up to 8 players. This guide covers server configuration, save management, and tips for running a smooth multiplayer experience.
Server Configuration
Astroneer servers are configured through the server configuration file and launch options.
- 1Locate AstroServerSettings.ini in your server directory
- 2Edit ServerName to set your server's display name
- 3Set ServerPassword for private sessions
- 4Configure MaxFrameRate for performance balance
- 5Set OwnerName to your Steam name for admin access
Tip
- Backup your save files before making changes
- Server name appears in the LAN browser
- Password protects your world from random joins
Essential Settings
Key configuration options for your Astroneer server.
ServerName=Display name of your server
Example: ServerName=My Space Base
ServerPassword=Password to join (leave blank for open)
Example: ServerPassword=secret123
MaxFrameRate=Server tick rate (30-60 recommended)
Example: MaxFrameRate=60
OwnerName=Steam name of server owner for admin
Example: OwnerName=YourSteamName
PublicIP=Your server's public IP address
Example: PublicIP=123.45.67.89
Warning
- Changing OwnerName after world creation may cause issues
- Higher frame rates use more CPU resources
Save Management
Managing your Astroneer world saves is crucial for a good experience.
- 1Saves are stored in the SaveGames folder
- 2Each save is named with a unique identifier
- 3Backup saves regularly by copying the folder
- 4To restore, replace the save folder with your backup
- 5Server auto-saves periodically (configurable)
Tip
- Create backups before major expeditions
- Name backups with dates for easy identification
- Consider automated backup scripts for peace of mind
Multiplayer Tips
Tips for running a smooth Astroneer multiplayer experience.
Info
- Astroneer supports up to 8 players per server
- Cross-platform play is supported between Steam and Windows Store
- Dedicated servers allow the host to leave without ending the game
Tip
- Host in a region close to all players for best latency
- Avoid very large bases on single planets - spread across worlds
- Restart the server after extended play sessions
- 8GB RAM handles most group sizes well
- NVMe storage significantly improves terrain loading
Ready to Start Your Astroneer Server?
Get instant setup, powerful hardware, and 24/5 support with Loafhosts.
Get Astroneer Hosting