: Use the gmad.exe tool (found in the game's bin folder) to "unpack" these files into usable folders. ⚠️ Important Considerations
This is used for legacy addons or content found on sites like or GameBanana . Location : Navigate to your GMod installation folder. Path: Steam\steamapps\common\GarrysMod\garrysmod\addons Process : Download the .zip or .rar file. Extract the folder inside the file. Paste that folder directly into the addons directory.
: The game will automatically download the files next time it launches.
: Addons can quickly consume tens of gigabytes of disk space.
: You can enable/disable addons via the in-game "Addons" menu. 📂 Alternative Method: Manual Installation
The Steam Workshop is the official repository for GMod content. It automatically handles installation and updates.
: Running too many scripted addons (like multiple HUDs) can cause Lua errors and crashes.
: Click the "Subscribe" button on any item (maps, weapons, NPCs).