Garry's Mod is Valve's First-Person, Simulation, and Miscellaneous game released in 2006.

Ports Required for Garry's Mod
The network ports for Garry's Mod are as follows:
Garry's Mod - Steam
- TCP: 27015, 27036
- UDP: 27015, 27020, 27031-27036
If you want to follow guides that are custom tailored to your exact router and Garry's Mod simply follow one of these links:
When you play Garry's Mod you will enjoy the following styles of play.
- First person games are played from the perspective of the player. They typically have a gun or other weapon held out in front, but this is not always the case. Many first person games are sometimes called "shooters" because the primary goal of the game is to shoot other players or creatures, but this is not always the case.
- Simulation is a huge category of games that includes driving and flying simulators, social simulations, medical simulations, sports simulations, and even dating simulations. They attempt to mimic the real world in a way that is either educational or rewarding or both. Popular examples include SimCity, FlightGear, and Madden NFL.
- This game is flagged as miscellaneous, which means it fits in multiple categories.
How to Port Forward Garry's Mod
When you are playing Garry's Mod 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 sometimes 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:
- Your router's IP address.
- The IP address of the device that the game will play on: either your computer or your console.
- A list of TCP and UDP ports to forward.
How to find your router's IP Address
The easiest way to find 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
Use our Network Utilities for a quick way to get your ports forwarded. Network utilities makes it easy to enable and disable your port forwards to keep your network security as tight as possible. You can also do it by hand by following these steps.
The usual process for forwarding a port is:
- Start by logging in to your router.
- Locate your routers port forwarding section.
- Put the IP address of your computer or gaming console in the proper box in your router.
- Put the TCP and UDP ports for your game in the corresponding boxes in your router.
- On occasion you have to reboot your router for the changes to take effect.
That should do it; your ports are now forwarded. Need something else forwarded? Check out our list of games and programs.