Level Creation

Convert maps between Quake3 and Half-Life

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

Older free for personal use version of Terragen for sculpting landscapes

hlfix is a tool that converts Worldcraft/VHE format files (.rmf) to standard .map files

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

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

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

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

Edit light values inside a Maps RAD file

A nice tool made in 2015 which can come in handy sometimes when a bsp file is too large and wont work in BSPtoMAP.exe

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

A tool for tweaking hammer settings and using multiple texture profiles

This program adds custom content to a BSP. It is a GUI version of Valve's bspzip.

Small tool for generating Random Source Maps

ZHLT rebuilt and up to date with latest engine build

GUI Compiler for Half-Life Maps

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

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

Identifies and archives all dependencies for bsp files.

Tools to aid in creation of HDR Targa files (command line)

Batch files for killing the compile processes

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

Small prefab to help protect your map

Older program used for editing entities within bsp maps

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

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

The Official Editor for Valve Games

Random SP map generator for Half-Life

Small application for viewing map files, Superseded by crafty

Creates .Res files for Source games running on a server

Multi Game Map Editor that supports Half-life

Alternative to Hammer Editor for Level design

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

Create an easily readable version of an FGD (commandline)

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

A slimmed down copy of the Source SDK 2013 map compile tools

VSIF2VCD is a command line scenes.image extractor/decompiler.

Frontend wrapper for netvis

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

Standalone Compiler for 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.

Alternative Map Editor for GoldSrc games

This tool blocks Hammer from converting plane coordinates to integers when exporting .map file and thus enables Hammer to output the original floating point coordinates.

Small collection of obfuscation techniques for maps

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

Standalone units converter

Decompile GoldSrc .bsp files into Hammer .map files.

Simple bindings for debugging maps

Batch map compiler for GoldSrc

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

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

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

Inserts instances into a map

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

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

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

Decrypt files that have been protected with BSPProtect (commandline)

this will pack every custom item into your map up to and including map over views

A tool to assist in the compiling of source engine maps

GUI frontend for Source compiling tools

OGLE is a rather amazing 3d tool that can extract shapes from 3d scenes being rendered on a computer screen

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

Aids in nthe process of converting GoldSrc maps into Source maps

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

Alternative Map Editor for GoldSrc games

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.

Edit the entities of Source and GoldSrc games

Simple tool for converting world units into Hammer Units

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

A tool for compiling maps from VMF to BSP format

Color Correct is a 3DS Max texture plug-in which alters the colors of any texture

Compiler and Decompiler rolled into one tool

Adjust the light levels in a map

automatically finds mapfiles to compile in the directory it is run

This tool can help you by grouping the map into VisGroups based on a grid.

Windows interface that frontends the compiling utilities

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

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

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

Custom DLL that supports transparency in Half-Life for Steam