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How to Find Your Project Zomboid Server IP

Learn where to find a Project Zomboid server IP, which address LAN and Internet friends need, how to enter the port, and how to troubleshoot firewall, forwarding, password and build problems.
Length13 min Posted Quest giverVGSources Team
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The right Project Zomboid address depends on where the server runs. For a rented server, copy the IP address and separate port from the hosting control panel. For a server running on your own PC, give people on your home network the host computer’s local IPv4 address; friends elsewhere need your reachable public address plus the forwarded UDP ports. A co-op session started with the in-game Host option can be joined through the game’s multiplayer flow without you publishing a public IP.

In Project Zomboid, open Multiplayer → Add server, enter the server name, IP, port and join password, then save and connect. UDP 16261 is the commonly documented game port, but the value in your server configuration or hosting panel always takes precedence.

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Choose the address that matches your hosting method

There is no single universal “Zomboid IP.” The address is supplied by the place hosting the world, and LAN and Internet players can need different values. Before sending details to anyone, identify whether the world is on a managed provider, a dedicated server on your computer, or a temporary session started with the in-game Host option.

How the world is hosted Address to give players Where to obtain it Port responsibility How long the world stays available
Managed or rented server The provider-assigned server IP The instance overview, game panel or Server Management page Copy the separate port shown beside the IP Available while the rented instance is running, independently of your personal PC
Dedicated server on your own PC, same home network The host PC’s local IPv4 address The host computer’s network settings Use the configured server port Available only while the host machine and server process are running
Dedicated server on your own PC, friends on the Internet Your home network’s reachable public address The address used by your home Internet connection Forward the configured UDP ports from the router to the host PC Available only while the host machine, server and home connection are online
In-game Host session No public IP is required for the cooperative host flow Use the game’s Multiplayer flow Handled by the host session rather than a separately published dedicated-server address Tied to the host’s co-op session rather than a persistent dedicated instance

Keep the IP and port as separate pieces of information. Most join forms have one field for the address and another for the port. If a panel displays IP and Port in separate boxes, do not paste IP:port into the IP-only box. Conversely, if a provider’s documented join form specifically asks for a combined value, follow that form; the game’s normal Add server screen uses separate fields.

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Find the IP of a rented Project Zomboid server

A managed host normally displays the connection details for each Project Zomboid instance. The panel is authoritative because it reflects the machine and port assigned to your server. A provider may show several addresses for administration, file access or console tools, so use the game connection address rather than an administrative or RCON endpoint.

  1. Sign in to your hosting provider’s control panel.
  2. Open the Project Zomboid instance, overview page or game panel.
  3. Open the area labelled Server Management or an equivalent connection section.
  4. Copy the displayed IP address and the separate port.
  5. Confirm that the server is running and note the join password configured for players.
  6. In Project Zomboid, select Multiplayer, then Add server.
  7. Enter a server name, paste the IP into the IP field, enter the port in the port field, add the join password and save.
  8. Select the saved entry and connect.

Provider documentation describes this same workflow: OXY.Games’ connection guide points customers to the panel’s IP and port, Host Havoc’s join instructions use the IP and port in the game’s join form, and Indifferent Broccoli’s guide directs customers to its Server Management tab.

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What to send to a friend

Send the address, port, server name if useful, and the player join password. Label whether the address is intended for LAN or Internet players. Do not substitute an administrative or RCON password for the password used by players to enter the server. If the panel later assigns a new address or port, send the newly displayed values rather than an older saved entry.

Why the provider panel matters

Rented servers can use an address and port that are different from the values in a generic tutorial. The panel may also expose a current server state, restart controls and configuration area. If a saved entry worked previously and then stops after a migration or configuration change, compare every field with the current panel instead of assuming the old address is still valid.

Find the IP when the server runs on your own PC

Self-hosting has two different connection cases. A player inside the same home network should use the host computer’s local IPv4 address. A player outside that network must use the home connection’s reachable public address, and the router must forward the server’s UDP traffic to the host PC.

For players on the same LAN

  1. On the computer running the server, open the operating system’s network settings and identify its local IPv4 address.
  2. Check the Project Zomboid server configuration for the port actually in use.
  3. Give the LAN player that local IPv4 address and configured port.
  4. Have the player open Multiplayer → Add server, enter those values, provide the server name and join password, then save and connect.

A local address is intended for devices on the same home or office network. Sending it to a friend who is outside that network will not make the dedicated server reachable over the Internet. If the host computer reconnects to the router and receives a different local IPv4 address, any existing router forwarding rule may point to the wrong machine; update the forwarding destination and send the current address again.

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For friends joining over the Internet

  1. Identify the reachable public address used by your home Internet connection.
  2. Read the server configuration and record the game port instead of assuming it is unchanged.
  3. In the router, forward the server’s configured UDP ports to the local IPv4 address of the host PC.
  4. Allow those same UDP ports through the host computer’s operating-system firewall.
  5. Start the server and verify that it is open and listening before asking friends to connect.
  6. Give remote players the public address, the configured port and the player join password.

The dedicated-server documentation lists UDP 16261 for the game and UDP 16262 for Steam/client traffic as common defaults. The Indie Stone also identifies UDP 16261 as the default game port and explains that it handles Steam queries: “The game port (UDP 16261 by default) is used to handle Steam queries.” See the Project Zomboid dedicated-server guide and The Indie Stone’s official blog post. These are defaults, not permanent requirements; if you changed the port in the INI or another server setting, forward and share the changed value.

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Test in stages. First connect from another device on the same LAN. Then test from an Internet connection outside the home network. A successful LAN test proves that the server process and local configuration work, but it does not prove that the public address, router forwarding or firewall is correct.

Use the in-game Host option for a small co-op session

The in-game Host flow is different from running a separately reachable dedicated server. A Steam multiplayer guide notes that a cooperative host does not need a public IP address; invited players join through the game’s multiplayer flow. Follow the game’s Multiplayer and Host options, configure the session, and have the other players use the corresponding in-game join flow. The guide is available at this Steam Community page.

Use this method when the goal is a small cooperative session rather than a persistent dedicated server with a provider address. The session is tied to the host’s game, so it is not the same as a managed world that remains available while the owner’s personal computer is offline. If you switch to a dedicated installation later, use the dedicated server’s panel or network addresses instead of the Host session’s connection flow.

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Join a private server by IP in Project Zomboid

Once you have the correct address and port, joining is a short in-game procedure:

  1. Launch Project Zomboid and choose Multiplayer.
  2. Select Add server.
  3. Enter a recognizable name for the saved server entry.
  4. Put only the server address in the IP field. Use the local IPv4 address for a LAN connection, the public address for an Internet connection, or the provider address for a rented server.
  5. Enter the configured port in the separate port field.
  6. Enter the player join password, if the server requires one.
  7. Save the entry and select it to connect.

Everyone must be running the same game build, and the server must be running and open. A correct IP cannot compensate for a stopped server, a closed listening port or a version mismatch. If the server uses a password, enter the player join password exactly as configured; management, console and RCON credentials are separate.

What if the server is private or not listed?

A private server can still be joined directly when you have its current address, port and player password. The server does not need to appear in a public list for the Add server entry to work. Direct joining is especially useful when the owner wants to distribute details only to a specific group, but every player still needs the correct build and current connection values.

Understand the Project Zomboid ports

Port numbers identify the service on the selected address. The following values are common defaults documented for dedicated servers:

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Traffic Common default How to use the value
Project Zomboid game port UDP 16261 Enter the configured value in the game’s port field and expose it for the server
Steam/client traffic UDP 16262 Forward or allow it when the server configuration and documentation call for it

Ports are configurable. Check the server INI, launch configuration or hosting panel whenever a displayed value differs from 16261 or 16262. The server’s configured value wins over a remembered default, and the same value must be used in the client’s port field. Do not silently replace a changed port with 16261 just because it is the usual example.

Because these are UDP ports, firewall and router rules must allow UDP rather than only TCP. A rule aimed at the wrong protocol can look correct in a router interface while still preventing players from reaching the server.

Diagnose a connection that fails

Work through the checks in the order that matches the symptom. Test from the same network first when possible; that separates a local server problem from an Internet reachability problem.

The game says the address is invalid or never reaches the server

  • Re-copy the IP and port from the provider panel or server configuration.
  • Make sure a port was not appended to an IP-only field. Enter the address and port separately.
  • For self-hosting, use the local IPv4 address for a LAN test and the public address only for an Internet test.
  • Confirm that the server process is running and that the server is open for connections.
  • Check that the client and server are using the same game build.

LAN players can connect, but Internet players cannot

  • The LAN result shows that the host and game configuration work inside the home network.
  • Check that the router forwards the configured UDP ports to the host PC’s current local IPv4 address.
  • Allow those UDP ports in the host computer’s firewall.
  • Verify that remote players received the public address, not the private LAN address.
  • Confirm that the public address is the one currently used by the home Internet connection.
  • If forwarding and firewall settings are correct but the public test still fails, the home Internet connection may restrict inbound traffic; consult the network provider or router documentation.

The server appears in a public list, but direct joining fails

  • Compare the port in the saved client entry with the port shown in the server configuration.
  • Check that the configured port is open and listening.
  • Re-enter the player join password and make sure it is not an administrative or RCON password.
  • Replace stale saved entries if the provider changed the address or the owner changed the port.

Only some players are rejected

  • Confirm that every player and the server use the same game build.
  • Ask each player to replace old saved entries with the current IP and port.
  • Check whether the failing players are remote while successful players are on the LAN; that pattern points to address selection, forwarding or firewall handling rather than the world itself.
  • Check whether the successful players are using a provider address while the rejected players were given an old self-hosted address.

The password is rejected

Use the password intended for player access. Server-management, console or RCON credentials are separate and will not necessarily authenticate a normal multiplayer join. Re-copy the join password from the host’s configuration or panel and save the entry again.

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The address worked yesterday

For a self-hosted server, check whether the host PC received a new local IPv4 address, whether the router’s public address changed, and whether forwarding still targets the correct computer. For a rented server, compare the saved entry with the current provider panel. In both cases, verify that the server is running, the configured port has not changed and the game build still matches.

Compare hosting choices before sharing an address

The connection method affects more than the number you type into Add server. A managed provider supplies the public address and usually keeps the instance available without your gaming PC. A self-hosted dedicated server gives you control over settings and backups but makes you responsible for the local address, router forwarding, firewall and the host machine’s uptime. The in-game Host option is the simplest for a small co-op session, but it follows the host’s session rather than providing a separately managed persistent server.

For any method, identify where settings and backups are managed. On a rented instance, look in the provider panel and its server-management tools. On a self-hosted instance, the owner manages the server files and network settings on the host computer. This distinction matters when you change a port, move the installation or need to restore a world: the connection details must be updated wherever the server is now running.

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Keep the connection details consistent

Before distributing an address, record four items together: the correct address for the player’s network, the configured port, the server’s running state and the player join password. Tell LAN players when to use the local address and remote players when to use the public address. If you change the server port, move the host PC to a different local address, alter router forwarding or update the game build, send updated details and have players edit their saved server entry.

The essential rule is simple: obtain the IP from the system hosting the world, keep the port separate, and let the server configuration—not a generic default—decide which port players use.

Frequently Asked Questions

Where do I find my Project Zomboid server IP?

For a rented server, open the provider’s game panel, instance overview or Server Management page and copy the displayed IP and separate port. For a self-hosted server, use the host PC’s local IPv4 address for LAN players or the home connection’s reachable public address for Internet players.

What IP should I give friends in my house?

Give them the host computer’s local IPv4 address and the configured server port. They should connect while using the same home network.

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What IP should I give friends who are elsewhere?

Give remote friends the home network’s reachable public address and configured port. The router must forward the server’s UDP ports to the host PC, and the host firewall must allow them.

What port does Project Zomboid use?

UDP 16261 is the commonly documented default game port. UDP 16262 is commonly used for Steam/client traffic. Check the server INI or hosting panel because configured values override these defaults.

Can I join a private Zomboid server by IP?

Yes. In Multiplayer, choose Add server, enter the current address in the IP field, enter the port separately, add the player join password and save the entry.

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Why can LAN players join but Internet players cannot?

That pattern usually means the server works locally but the public address, router forwarding, host firewall or ISP inbound restrictions need attention. Confirm that remote players received the public address and that forwarding targets the host PC’s current local IPv4 address.

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Do I need a public IP for the in-game Host option?

A Steam multiplayer guide notes that a cooperative Host session does not require you to publish a public IP. Players use the game’s multiplayer flow instead of a separately configured dedicated-server address.

Why does my password fail even though it is correct?

Use the player join password, not a server-management, console or RCON password. Re-copy the player password from the host panel or server configuration and save the connection entry again.

Why does direct joining fail when the server is listed?

Compare the saved port with the server’s configured port, confirm that the port is open and listening, and re-enter the player password. A listing does not fix a stale port or incorrect credentials.

Do all players need the same Project Zomboid version?

Yes. The client and server must run the same game build. A correct IP and open port cannot overcome a build mismatch.

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The Bottom Line

Find the address where the world actually runs: a provider panel for rented hosting, the host PC’s local IPv4 address for LAN play, or the home connection’s public address for Internet play. Enter that address and the configured port separately in Multiplayer → Add server. UDP 16261 is only the common default; the server configuration, forwarding rules, firewall and player password determine whether the connection succeeds.

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