Level Creation

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

Create an easily readable version of an FGD (commandline)

Valve Map Extractor modified version (Successor to VMEX)

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

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

Editor used for 007 Nightfire map creation

A tool for tweaking hammer settings and using multiple texture profiles

Well made Russian Level Editor for GoldSrc

Custom DLL that supports transparency in Half-Life for pre Steam WON

Collection of various bspconv exes i have found around the net

Create a Map using color information through 2D

Great little application for viewing skys used in game

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

Custom DLL that supports transparency in Half-Life for Steam

Convert Worldcraft 3.3 Maps into the Radiant Format

Modify the entities of a .map file by editing its text

Aids in nthe process of converting GoldSrc maps into Source maps

Entspy is program for viewing and editing the entities of compiled map

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

Batch map compiler for GoldSrc

Generate forests within your maps based on surface type

Tools supporting the creation of HDR Images for the Engine

Decrypt files that have been protected with BSPProtect (commandline)

This is Badger. It's a tool to generate levels for Half-Life 2, Black Mesa.

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

Inserts instances into a map

Quake2/3 map surface generator

A tool for compiling maps from VMF to BSP format

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

Simple tool for converting world units into Hammer Units

GUI Compiler for Half-Life Maps

Generates Terrain for Games

Generate mazes for your level in GoldSrc

Some Dev Texture guides to aid with level creation

Alternative to Hammer

Hack the colors in WorldCraft

makes textfiles to go with your overview pictures from Half-Life maps.

Alternative Map Editor mainly used for Quake 2 but compatible with GoldSrc

Simple bindings for debugging maps

HammerMate is a tool I use to save and load the wad texture list for Hammer 3.4 / 3.5.

A modified version of VBSP designed to greatly increase the maximum width and length of visleaves.

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

Useful tool for extracting the contents of BSP files

GUI frontend for Source compiling tools

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.

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

Great little command line tool for creating a backup of your map during the compile process

ZHLT rebuilt and up to date with latest engine build

Frontend wrapper for netvis

Edit the entities of Source and GoldSrc games

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

This is a modified VBSP that does not delete prop_static entities using models with propdata

Joiner is a little application that reads in a template .vmf file and produces a new .vmf filled with supports based on your template and customised settings or config.

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

The open source, cross platform level editor for idtech games (GTKRadiant fork)

Standalone units converter

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.

A tool to assist in the compiling of source engine maps

Collection of the main tools required for mapping with GoldSrc

Preview a map contained in a BSP file.

Alternative Map Editor for GoldSrc games

Free, Opensource, drop-in editor replacement for Hammer

Creates .Res files for Source games running on a server

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

Preview a map contained in a BSP file.

Tool for compiling Maps from hammer

Compiler and Decompiler rolled into one tool

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

The Official Editor for Valve Games

The only native Mac OS X level editor for Quake 1

A tool to generate cl_leveloverview from BSP files

This tool is used to create the smallest convex brush containing all points in the input file. Input file can be .smd (use its vertexes), .map (brushes and point entities) or .pts file.

Collection of tools useful for mapping with GoldSrc

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

Decompile GoldSrc .bsp files into Hammer .map files.

Decompiles some BSP maps with most support for Nightfire 007

Edit light values inside a Maps RAD file

Analyzes and reports on errors in the map compilation process

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

automatically finds mapfiles to compile in the directory it is run