There are 2 repositories under goldsrc-engine topic.
An open-source GoldSrc engine clone (Clean authentic reimplementation without using reverse-engineered code)
Goldsrc map viewer/editor without decompiling. Also can view .MDL models.
Source / Goldsource dedicated server images built through use of steamcmd. 🐳
Simple utility for mapping/scripting/speedrunning or researching games based on GoldSrc/Xash3D FWGS engine (such as CS 1.6, HL, HL:OF, HL:BS, and other HL-mods). Uses RapidJSON and PolyHook 2.
One massive plugin that includes many separate plugins for the kreedz mod.
:runner: The plugin is designed to display a world record on a local server or global
Blender addon for importing Rich Map Format (rmf) map files from the GoldSrc engine
Port of Xash3DS to the new Xash3D-FWGS engine, targeting better compatibility with the original 3DS.
Custom hl.exe with improvements
Hook for CS that implements some features from CSO for client
Jumping statistics plugin for Goldsrc Engine
The original Half-Life 1 model viewer ported from GLUT to GLFW 3
A Server Browser for Cry of Fear
A Python library for creating, editing and writing GoldSrc .map files
GPL-licensed HLSDK (reimplemented using the original Quake engine and manually rewritten sources)
Dockerized steamcmd with dependencies for building Source / Goldsource dedicated server images. 🐳
AMXX Project
Master Sword is an RPG mod for Half Life 1 (GoldSource)
The Hammer Units Conversion Tool (HUCT) is a compact and user-friendly tool designed for seamlessly converting real-world measurements to Hammer units and vice versa.
A library for parsing GoldSrc demo files
A compilation of HLDS appmanifest files for installation from the Goldsource community.
Scripts to manipulate goldsrc .map files with Python
.NET implementation of Query and Rcon for Source and Goldsource games.