Steam Community :: Guide :: Setting Up a Dedicated Server on Linux

S&Box: A Platform, Not a Game feature - Garry's Mod - ModDB

Steam Workshop::Mods collection #1: Garry's Mod

How to find your Garry's Mod Folder and the GMad/GMPublish

Install Garry's Mod Addons to Your Steam Client

Steam Workshop::Gmod Ultimate Nostalgia Collection

Steam Workshop::Garry's Mod Classic Collection

Dragons Rock Steam Trains (Garry's mod)

Garry's Mod Creator Is Asking Fans Whether Nazi Gamemodes Should

ArtStation - Steam Workshop Collection - Garry's Mod (Classic & Advanced Basewars Gameplay Models)

I found out that you can download Garry's Mod 10, 11 or 12 for free if you own the current version in your Steam Library. Fired up Gmod 10 and made this. : r/gmod