How to Port Forward Civilization Iii
PUREVPNpfcgnatHow to Port Forward Civilization III

Civilization III is a turn-based strategy game released in 2001. The game offers players a chance to take control of one of several civilizations, each with its strengths and weaknesses, and lead it to glory. Civilization III is considered by many to be one of the best Civilization games and has won several awards.

If you want to have the best gaming experience while playing Civilization III, you need to forward some ports to your router. This strengthens and stabilizes your network connection and can even make it faster. Routers are not typically designed to allow incoming connection requests. However, forwarding a port can positively affect the overall gaming experience.

Requirements to Port Forward Civilization III

Just before you begin with the process of port forwarding, make sure you have the following things:

  • Downloaded and installed the Civilization III server.
  • The IP address of your router.
  • IP address of your gaming device.

TCP and UDP ports of Civilization III for your gaming device as mentioned in the section below.

Step-by-step guide on how to port forward Civilization III

Now that you have the above details noted down, you can move to the next stage of Civilization III port forwarding:

  1. On your web browser address bar, type your router’s IP Address/Default Gateway.
  2. Log in with your router’s credentials (username and password) to view your router’s firmware settings.
  3. Navigate to the port forwarding section of your router.
  4. Click on Port Forwarding.
  5. Enter the IP address of your gaming device in your router in the correct box.
  6. Put the TCP and UDP ports of the Civilization Iii server in the boxes in your router. The default Civilization III port numbers are 3783, 6500, 6667, 28900, 29900, 29901. And then click the apply button.
  7. And you’re done. Restart your router to let the changes take effect.
  8. Once your changes take effect, now you can host a Civilization III server and let your friends connect to it as well. To let them connect to it, you need to provide them the hostname you are using, along with the port number. For example, ‘’.

Civilization III ports needed to run

To play Civilization III online and create a server without any interruptions, you’ll have to allow access to certain ports on your firewall. The default Civilization III ports are:

TCP Port:3783, 6500, 6667, 28900, 29900, 29901
UDP Port:2302-2400, 6500, 6515, 13139, 27900

Quickly and safely open ports using PureVPN

Opening a port shouldn’t be complicated. With the Port Forwarding add-on, it’s as simple as 1, 2, and 3!

Ports to forward on devices

Ports to run on PC:

TCP Port:3783, 6500, 6667, 28900, 29900, 29901
UDP Port:2302-2400, 6500, 6515, 13139, 27900

How to open ports behind CGNAT

What if your ISP performs CGNAT? Most ISPs perform CGNAT (Carrier-grade Network Address Translation) to conserve bandwidth and assign a single IP address to multiple users connected to the same internet network. However, CGNAT makes it difficult for you to open ports on the router. 

To get around the CGNAT issue, you can use the Port Forwarding add-on to bypass this problem and port forward routers without hassle. 
Here’s more information on how to use PureVPN’s Port Forwarding add-on and bypass CGNAT in a few clicks.

Open Ports Behind CGNAT

PureVPN’s Port Forwarding Add-on

A secure way to open all ports

To most people, port forwarding is quite a demanding task. For starters, every router has a different console, which often makes it difficult to navigate to specific settings.

Secondly, you won’t always be able to open Civilization III Online ports on your router if your ISP restricts the ports. Yes, you heard that right! ISPs are notorious for blocking ports due to security reasons. If ISP isn’t the reason behind a blocked port, then perhaps it could be your operating system’s firewall.

Well, you can eliminate all these problems and enjoy smooth online gaming on all your desired systems with PureVPN’s Port Forwarding add-on. Through the Port Forwarding add-on, you can allow all ports, disallow all ports, and allow specific ports.


Is it safe to port forward for games?

Although port forwarding improves gaming performance, it also creates a security vulnerability as outsiders can access the computer or network. Gamers should only use this service for their trust servers and ensure their firewall blocks any other incoming connections.

Does port forwarding help in gaming?

Port forwarding is a common practice in gaming that makes your console or PC easy to access for other players on the internet. By opening up ports, you can enjoy improved connection speed, shorter wait times for joining games, and smoother gameplay, especially if you’re hosting a game.

Can a VPN block ISP?

A VPN will prevent your ISP from seeing your online activity and control your internet speed by encrypting all data passing through your internet connection.

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