The Game Configuration options allow you to setup the editor to edit Half-Life and it's mods. A separate configuration is needed for each game or mod.
Configuration
- if this is a new installation of the Valve Hammer Editor, this
drop-down menu will be empty, otherwise your different game
configurations will be listed here. If you've installed over a
previous version of the editor, be sure to go through each
configuration and make sure all of the settings are still correct.