In this tutorial I will teach you how to not only install Hammer++ for Garry's Mod correctly, but how to also to install, mount custom content from the internet and gather assets from other source games such as Left 4 Dead 2 or Team Fortress 2. Timestamps: 0:00 Installing Hammer++ 0:51 Installing Custom Content 2:18 Getting Source Game Content Hammer++ Download: https://ficool2.github.io/HammerPlusP... 7-ZIP Download: https://www.7-zip.org/ or WinRAR Download: https://www.win-rar.com/start.html?&L=0 GCFScape Download: https://nemstools.github.io/pages/GCF... Garry's Mod Mount.cfg Code Lines: "kf2" "D:\Maps\Source Engine Assets\killingfloor2" "l4d2" "D:\Maps\Source Engine Assets\l4d2" REPLACE THE DIRECTORY WITH YOURS INSTEAD