Half-Life SDK

Todo: Add links to applicable TWHL Wiki pages on various GoldSrc pages, such as entity pages, as that wiki is more up-to-date and verbose for GoldSrc content.

The Half-Life SDK is the set of tools needed to create content for GoldSrc.

Download and Installation · Frequently Asked Questions · Release Notes

Modding	Creating, organizing and releasing your GoldSrc project.
Level Design	Maps are the 3D worlds where everything comes together.
Programming	A mod's C++ code defines the way its world and game rules behave.
Modeling	Models are the detailed 3D objects that appear in the game world.
Textures	Textures are used to add additional 2-dimensional detail to a map or model.
Sounds	Quality audio adds a fourth dimension to your world.
Sprites	Effects like smoke, sparks, blood and fire are created with sprites.
Tutorials	Step-by-step guides on a variety of topics.
Technical	In-depth discussion on the GoldSource Engine's features.
Glossary	Explanations for terms you may encounter.
Official Tools	Official tools made by Valve for their games.
Scripting API	The Scripting API for Counter-Strike 2.
Third-Party Tools	Useful developer tools created by the community.