Commons errors when working with Source
Demystify the Source SDK with this handy guide.
How to use Pakrat
Player Size Information. (Danial at Chatbear did some tests and put this together)
A mini tutorial on how to record in game action to produce a movie that will run in most media programmes.
The purpose of this page is to answer most of the commonly asked questions about Scripting and problems related to Scripting.
This is basically a document that highlights all of the important changes from HL1 to HL2 mapping.
Basically a gathering together of ideas on how to make a map scary to the player.
Here's the list of other command-line parameters.
A tutorial on how to change the format of the menu. Be advised that this is not a tutorial one how to create graphics or art, but simply how to alter the menu format for your mod.
How to Install Maps
Make a simple mini mod without coding