Create a Port Forward for Subnautica: Below Zero in your Router

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Port Forward Staff
December 04, 2018 (Last Updated: ) | Reading Time: 2 minutes

Subnautica: Below Zero is Unknown Worlds Entertainment's Adventure and Survival game released in 2021.

Subnautica: Below Zero game art showing player underwater being chased by a squid-like creature.
Subnautica: Below Zero game art showing player underwater being chased by a squid-like creature.

Subnautica: Below Zero includes the following styles of play.

How to Port Forward Subnautica: Below Zero

When you are playing Subnautica: Below Zero you might need to forward some ports in your router. Forwarding ports is a useful trick in gaming because it can really help to make your network connection most stable and intermittently even faster. Routers were not designed to allow incoming network requests and some games can play tremendously better if an incoming connection is forwarded through the router to the game.

Before You Forward a Port

Before you can forward a port you need to know the following things:

How to locate your Router's IP Address

The easiest way to locate your router's IP address is to run our free Router Detector utility. It's a part of the Network Utilities suite of tools and it's completely free to use.

How To Forward Ports

A smart way to forward your ports is to use Network Utilities. Since Network Utilities allows you to both forward and un-forward ports easily you can keep your network security maximized, and then forward ports only when you need them. Alternatively you can do it by hand.

The process for forwarding a port is usually:

Ports To Forward for Subnautica: Below Zero

The ports for Subnautica: Below Zero are as follows:

Subnautica: Below Zero - Steam

  • TCP: 27015-27030, 27036-27037
  • UDP: 4380, 27000-27031, 27036

Subnautica: Below Zero - Xbox One

  • TCP: 3074
  • UDP: 88, 500, 3074, 3544, 4500

Subnautica: Below Zero - Playstation 4

  • TCP: 1935, 3478-3480
  • UDP: 3074, 3478-3479

Subnautica: Below Zero - Switch

  • TCP: 6667, 12400, 28910, 29900, 29901, 29920
  • UDP: 1-65535

Subnautica: Below Zero - Xbox Series X

  • TCP: 3074
  • UDP: 88, 500, 3074, 3544, 4500

Subnautica: Below Zero - Playstation 5

  • TCP: 1935, 3478-3480
  • UDP: 3074, 3478-3479

We have guides that are custom tailored for Subnautica: Below Zero that will show you the incoming ports.

That should do it; your ports are now forwarded. Need something else forwarded? Check out our list of games and programs.

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