How To Play With Friends On Unturned: The Complete Multiplayer Setup Guide
Playing with friends in Unturned requires selecting between internal Steam-integrated hosting for casual sessions or dedicated server environments for persistent, stable gameplay. Achieving a seamless multiplayer experience involves managing network ports, firewall exceptions, and configuration files to ensure your group can connect reliably without lag or authentication timeouts.
Foundational Requirements for Private and Public Server Hosting
Before initiating your session, verify that all participants have the base game installed via the Steam client and are running the same version of Unturned. Mismatched game versions are the most frequent cause of connection failures. You must also determine whether you intend to run a temporary host through the in-game menu or establish a persistent server that remains active when you are offline.
- Essential Gear and Prerequisites:
- Hardware Requirements: A stable internet connection with at least 5 Mbps upload speed for hosting a small group.
- Administrative Access: You must have permission to modify Windows Firewall settings or access your router configuration page.
- Software Dependencies: The latest Steam client and the optional Unturned Dedicated Server tool available via the Steam Library Tools tab.
- Performance Benchmarks: 4GB of dedicated system RAM is recommended for hosting a server for 1-4 players; increase to 8GB for larger groups or complex modded maps.
- Estimated Setup Duration: 15 to 45 minutes, depending on your familiarity with port forwarding.
Procedure for Launching and Configuring Your Multiplayer Session
Step 1: Initiating an Internal Peer-to-Peer Game
This method is best for small groups who wish to play immediately without complex server maintenance. Navigate to the Play menu in the Unturned main screen and select Host. Choose your map, adjust the game difficulty settings to your preference, and ensure the game mode is set to Private if you want to restrict access to invitees only. Set a password in the designated text field to prevent unauthorized users from joining your instance. Once configured, click Play. Your friends can join via their Steam Friends list by right-clicking your name and selecting Join Game.
Step 2: Configuring Windows Firewall for Incoming Traffic
If your friends receive a connection timeout error, your local firewall is likely blocking the incoming traffic. You must manually add an exception for Unturned. Open the Windows Defender Firewall with Advanced Security and navigate to Inbound Rules. Select New Rule, choose Port, and input the UDP protocol with the specific port 27015. Allow the connection and ensure this rule applies to Public, Private, and Domain networks.
Warning: Never disable your firewall entirely to solve connectivity issues. Always use specific port forwarding rules to minimize your exposure to external security threats.
Step 3: Establishing Port Forwarding for Dedicated Hosting
For a persistent server that remains active without you being present, you must perform port forwarding on your router. Access your router’s web interface by typing its gateway IP address into your browser. Locate the Port Forwarding or Virtual Server section. Create a new entry for the port 27015, ensuring the protocol is set to UDP and the internal IP address matches your computer’s local IPv4 address. Save the settings and reboot your router if necessary to apply the changes.
Step 4: Editing Server Configuration Files
Locate your server folder within the Unturned directory, typically found in the SteamApps/common/Unturned/Servers folder. Access the Commands.dat file using a basic text editor. This file dictates your server behavior. You should add lines such as Name, Password, and Map to define your instance. For example, typing Name MyPrivateServer followed by Password MySecretKey will secure your lobby. Save the file and restart the server executable to apply these customizations.
Unturned - How to Play with Friends - The Daily Juice
Technical Comparison of Hosting Methodologies
| Feature | In-Game P2P Hosting | Dedicated Server (Local) | Third-Party Server Hosting |
|---|---|---|---|
| Ease of Setup | Extremely High | Moderate | Low |
| Server Stability | Dependent on Host PC | High (Stable) | Maximum |
| Cost | Free | Free | Subscription Fees |
| Persistent World | No | Yes | Yes |
| Hardware Load | High | Medium | Minimal (Offloaded) |
Common Connection Failures and Field Fixes
If you encounter persistent issues during your multiplayer setup, refer to these common failure points and their corresponding technical resolutions.
- Root Cause: Port Mapping Conflict
- Actionable Fix: Use an online port checking tool to verify that port 27015 is open and accessible from the internet. If it reports as closed, double-check your router's port forwarding rules and ensure your ISP is not utilizing CGNAT, which prevents inbound connections.
- Root Cause: Steam Authentication Timeout
- Actionable Fix: Ensure that both the host and the client have Steam running with valid login sessions. If the error persists, verify the integrity of your game files through Steam by right-clicking Unturned, selecting Properties, navigating to Local Files, and clicking Verify Integrity of Game Files.
- Root Cause: Mismatched Game Data or Mods
- Actionable Fix: If you are using mods, every player must have the exact same versions installed and active. If an error persists, clear the workshop folder within your Unturned directory and re-download all required assets simultaneously.
Frequently Asked Questions
Why can't my friends see my server in the public list?
If you are hosting a local server, it may not appear in the public list because it is set to private or requires proper port forwarding to announce itself to the master server. Ensure your port forwarding is correctly configured for both 27015 and 27016, and check the server configuration settings to ensure the visibility flag is set to public if you want it indexed.
Do I need to pay for a server to play with friends?
You do not need to pay for a server. While third-party hosting services provide convenience and 24/7 uptime, you can host a game for free using your own computer. Use the in-game host menu for casual sessions or the dedicated server tools if you require a persistent world.
How do I make myself an administrator on my own server?
To grant yourself administrative privileges, find the Commands.dat file in your server directory and add the line "Owner [YourSteamID64]". You can find your SteamID64 by searching for your profile on third-party Steam ID lookup websites. Save the file, restart the server, and you will have full console and administrative command access.
What is the maximum number of players I can invite?
The default player limit is typically set to 12 or 24, but this can be adjusted in your server configuration. Open the config.json file within your server folder and locate the "MaxPlayers" value to change it. Note that high player counts may require a more powerful CPU and increased bandwidth to maintain optimal frame rates and reduce network jitter.
Mastering your multiplayer environment is the first step toward building a thriving community. Ensure your server configuration is backed up regularly to prevent data loss and keep your group connected for your next survival session.
