Utilities

Extract the contents of VPK files

benchmarking tool for Linux OpenGL games

AMD dropped opengl support at one stage for their drivers and this helps rectify the issue

This new render dll's support transparent models in many new MOD's.

a free open source tool that can be used for tuning and cleaning up Steam and Source engine games.

selection of icons for Valve filetypes making development on windows easier

Launch mods for Half-Life

RESGen. A tool to create .res files for Half-Life.

This tools manages your custom modifications for your Source based Steam games.

Alternative to Resgen, Download at own risk

For working with the same data Steam relies on

Valve Data File Parsing library.

This Project aims to provide a parser which parses the log output of the goldsrc hlds engine (Counter-Strike, Half-Life, etc.). There is a parser written with ragel and one written by hand.

An assortment of java classes for working with the source engine

This tool was manly made to extract out the mapname of GoldSrc- and Source Engine demofiles and place it in the name of the demofile itself.

High definition pack for Half-Life and Opposing Force

PackBSP is a tool to help automatically manage and pack dependencies in custom maps for games

This is a pixel shader for bloom-like effects on any Half-Life engine game.

Free and open source SDK launcher for Counter-Strike: Global Offensive and other source engine games

hlds (goldsrc) logs parser written in C#

TM GCF Extractor

This is a simple interpreter library for the Source Config.

Collection of simple icons for Source related content (This version is from Riintouge)

PakScape is a PAK and PK3 explorer/creator

This simple script in batch add a button in the windows context menu for create files in VPK format

Valve Source Engine game language resource file localization tool

Just extract this somewhere and drag your demo file onto it and it'll remove all the scoreboards and command menus from demos.

Miscellaneous programs which use Steam data

This is a C# library to manage GoldSrc specific files.

Benchmark which introduced some of the new and more advanced features of the Source engine and Valve's hybrid threading technology

Sublime Text filter system that searches the Valve wiki for the input text

Source Engine based Project Cleaner - Primarily for SDK 2013 to make certain files more Linux & Mac friendly.

A development integration and project building tool for Source Engine modders.

Makes starting Source based game server as easy as possible

A collection of tools and libraries for the Source Engine on the Xbox 360

Javascript parser for valve gui files -- ported from optf2's vgui.py

Launches source sdk for Portal

vdfplus is a small library that aims to help with converting Valve's KeyValue format to JSON and vice versa.

Generate RES files for your maps

PakRat is a graphical replacement for the BSPZIP program

simple command line program that converts v13 packed addons to v12

Tools for aiding in the creation of animations for view player models

Valve Integrated Development Environment

TF2 demo parsing in javascript

Spreadsheet listing HL2 models

Rip DirectX content from games

Adds TGA Thumbnails in windows

Half-Life 1 Scripting and Administration

A collection of tools to help with modding

a collection of tools to enrich GoldSrc

Tool for porting your GoldSource maps to Source. It features many fixes that will save hours of mindless work.

a tool for game replays recorded with Half-Life.

PiLauncher lists the mods installed on your favourite games to make them easy to launch

Edit the UI colors in Worldcraft

Valves VR toolkit for the HTC Vive

Ctx converter removes the hassle of having to type in correct cmd commands to decompile ctx files

This is an all-in-one kit that comes with both Hammer 3.4 and 3.5, Auto Seamer, Batch Compiler, BSP Viewer, BSP2MAP, Crafty, GCF Scape, Leak Marker, MAP Viewer, Model Viewer, PAK Explorer, Revolver, Sprite Explorer, Sprite Fixer, Sprite Viewer, Sprite Wizard, Terrain Generator, Texture Extractor, Valve Compile Tools, Wally, WinBSPC, and ZHLT.

Source Multi-Tool is meant as a replacement to Valves Source SDK Launcher

Syntax highlighting for Valve formats in Sublime Text

netdecode is a utility for parsing and analysing data within demo files produced by Valve's Source engine (only the Orange Box branch for now). This is primarily a tool for testing and reference. Poorly written in C#.

OpenGL wrapper for Direct3D

Debug options for HL2 Deathmatch

Source and GoldSrc Query Tool

Create custom shaders for Source from a node based interface

This is a simple interpreter library for the Source Config.

Extract content from game archive files

Silence unwanted and annoying game sounds. (Half-life goldscr engine)

You scan for the maps., Then select the map. There you go. Just right there at your desktop