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.