We strongly recommend that you buy the game so you can support the developershttps://store.steampowered.com/app/4000/Garrys_Mod/
WHAT IS GARRY’S MOD
Garry’s Mod is a physics sandbox. There aren’t any predefined aims or goals. We give you the tools and leave you to play.
HOW DO I INSTALL GARRY’S MOD ?
1. Click the green UploadHub button and you should be redirected to the Download.
2. Once GARRY’S MOD is finished downloading, extract the .rar file. (You will need WinRar, you can get it here
3. Once its extracted, go into the games folder and right click the game and run it as administrator and Enjoy!