Level Creation

Great little application for viewing skys used in game

Modification of Source Valve Hammer Editor to fix some issues. Fixes brush vertex precision loss.

A collection of FGD's for GoldSrc

Alternative to Hammer Editor for Level design

It is another type of solid which is perfect for creating terrain. A plugin for Hammer

Generate a random map for Half-Life based on criteria you set in the application

Frontend wrapper for netvis

This program will help you to manage all your customs files, for your maps , texture, models or mods

C# Library for working with BSP files (and other similar file formats).

Basic Model viewer for GoldSrc

Map Resource Extractor (MRE) is a small program that reads the VMF, and only copies the content that has been used in the map.

Simple tool to dump raw data from Valve's map files.

Custom DLL that supports transparency in Half-Life for Steam

Valve Map Extractor, Decompile BSP maps for source (original version)

The open source, cross platform level editor for id Tech games.

Identifies and archives all dependencies for bsp files.

The only native Mac OS X level editor for Quake 1

Simple tool to change VTF versions from 7.5 to 7.4

Used to take source-css console commands and convert them into .vmf-compatible commands.

A graphical interface for creating and editing Half-Life FGD Files.

Valve Batch Compile tool (VBCT) is a source map Compile tool

Simplest Pak extractor ever. Just pick a map and click the button

Batch compile Source and GoldSrc Maps

Small Tool for extracting Textures from BSPs and into WADs. Includes GUI Versions WinTextract & Textract Suite

This is a tool for showing leaks in a map made in WordCraft.

Batch files for killing the compile processes

A collection of JavaScript functions to load Goldsource and Source map files and render them. Not an editor.

This is a tool I made to create huge forests in Source maps (It should work with any source game!)

Collection of tools useful for mapping with GoldSrc

Modified Compiler with support for large models and textures

GUI frontend for Source compiling tools

RandMap is a random map generator for Half-Life

A tool for tweaking hammer settings and using multiple texture profiles

Map viewer for Valve's GoldSrc engine (needs to be compiled)

Standalone Compiler for Source Maps

Worldcraft Hammer Editor Map Compiler is a set of .bat files that make the process of compiling and developing .bsp maps from .vmf files an easy and fun task.

Removes entity names from your map and helps prevent people from stealing your work

Quake Army Knife, multi-purpose tool for games based on or similar to the Quake engine

Similar to ZHLT for Goldsrc, it speeds up compilation for Source

C# library that will parse Quake/Half-Life MAP files

Tool for compiling Maps from hammer

Open-source library for reading and editing BSP files

Older program used for editing entities within bsp maps

The Original official mapping utility from Valve

Generates displacements that would usually take an extremely long time, or just be impossible to do in Hammer.

This program will create a half-life2 displacement map from a heightmap image.

Convert .BSP files to .MAP files & Extract files from .PAK or .SIN files

Update to ZHLT

Modified versions of the tools used in the Map compilation process

Simple tool for converting world units into Hammer Units

DirectX based application to open and view Half Life 1 game files (Source Code)

Small tool for generating Random Source Maps

Contains 3 Tools, BSP_View, BSP_Tool and BSP_Slicer all of which perform useful tasks on Half-Life Maps

GUI Compiler for Source Maps

Windows interface that frontends the compiling utilities

This is an modified version of VHLT v34 by Uncle Mike designed for the Xash3D engine (bsp v31)

Tools supporting the creation of HDR Images for the Engine

Allows you to create interesting 3D shapes without going through all the hassle of vertex manipulation

ZHLT rebuilt and up to date with latest engine build

A small VMF to JSON parser

Standalone Compiler for GoldSrc Maps

This program is a little tool for those that like the Half-Life game, with
its amazing kind of enemies and weapons.

Inserts instances into a map

Quake2/3 map surface generator

automatically finds mapfiles to compile in the directory it is run

Decrypt files that have been protected with BSPProtect (commandline)

Small collection of obfuscation techniques for maps

Generate forests within your maps based on surface type

Alternative Map Editor for GoldSrc games

Alternative to Hammer

A tool to assist in the compiling of source engine maps

integrates into Hammer and allows conversion of Source Engine units into metric or imperial units.

Create a Map using color information through 2D

Another great tool from RedMser which tracks Hammers compilation progress even when it seems to hang

Batch map compiler for GoldSrc

Displays all options for, and facilitates, compiling maps for Nightfire

Decompile GoldSrc .bsp files into Hammer .map files.

Hack the colors in WorldCraft

Aids in nthe process of converting GoldSrc maps into Source maps

The Calliper editor (formerly Crowbar) is designed to be a cross-platform, extensible level editor that accelerates the creation of computer game maps, and is targeted specifically at Source engine games.