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How to Open a UDP Port for Project Zomboid

On this page
  1. Why Open Additional Ports?
  2. How to Request a Port
  3. After Receiving Your Port
  4. Verifying Ports

Why Open Additional Ports?

Project Zomboid uses multiple ports for different functions:

  • Game port (UDP) — The main port players use to connect (default: 16261)
  • Direct connection port (UDP) — Used for direct player connections (default: 16262)
  • Steam query port (TCP) — Used for Steam server browser listings

On AgilaHost, your primary game port is already allocated. You may need additional ports for the direct connection port or Steam query.

How to Request a Port

  1. Open a Technical Support ticket at /tickets/create
  2. Specify that you need a UDP port for Project Zomboid
  3. Once allocated, our team will let you know the port number

After Receiving Your Port

  1. Go to the Startup tab in your game panel
  2. Set the STEAMPORT variable to the port our team allocated
  3. Restart your server

Verifying Ports

Make sure the ports in your Startup tab match what is allocated in the Network tab of your panel. Mismatched ports will prevent players from connecting.

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Still stuck?

Open a ticket from your account and the team answers there. No account yet? Email support@agilahost.com.