Before exploring the mods and maps, it is crucial to understand why the Half-Life 2 toolbox is so effective. When Valve released the Source Engine, they provided modders with assets that had three key features:
Several tools and resources are available to help create and customize HL2 GMod content, including:
The Gravity Gun gets an upgraded “Physgun” (physics gun) in GMod, which can freeze, unfreeze, and super-pull any entity—far beyond HL2 ’s limits.
To play the actual campaign levels, you must still own Half-Life 2 and its episodes. Once installed, these appear in the GMod map menu, allowing for physics experimentation within iconic environments like City 17.