Garry’s Mod has enough tools and options that there’s no conceivable limit to the things you can make. A second gun, “the tool gun” is used to weld objects together, attach wheels and thrusters, and generally do the majority of the building process. This gun behaves exactly how you want it to, and once you’ve gotten used to it, its presence will seem transparent.
The primary method of interacting with objects in the game world is “the physics gun.” The physics gun, a beam weapon comparable to the proton gun from the movie Ghostbusters, is an intuitive way to interact with objects, and it allows you to move and rotate objects, as well as freeze them in place with ease. The game is viewed from the first-person and has both single-player and multi-player modes, each offering different experiences. For example, ropes, pulleys, welds, and different physical properties can all be applied to objects. Players are given a huge variety of objects to spawn (ranging from coffee mugs to freight trains) as well as ragdolls and a list of various ways in which to interact with these objects. Garry’s Mod is a sandbox game with no goals or expectations.