Garry's Mod allows players to manipulate props from any Source engine game installed on their computer (or ones created by the community) using the Physics Gun, or Physgun, a blue version of Half-Life 2's Gravity Gun (the same model as the Super Gravity Gun at the end of Half Life 2 as well as some parts of Half-Life 2: Episode One) that allows objects to be picked up from any distance, adjusted in mid-air and frozen in place. After the tenth version of Garry's Mod, the mod was no longer referred by its number and just called Garry's Mod. Since then, the game has gone through various versions, adding more and more features until it became the game based mod it is today. It started out as a mod that allowed users to rope things to go together, and it made the pistol shoot out manhacks and other things to build.

Garry's Mod was created in 2004 by Garry Newman's Team of Developers. It is a nonlinear physics and role playing video game that allows the player to manipulate objects and experiment with physics. Garry's Mod or GMod is a modification for the Source game engine.

Gmod super gravity gun