Level Creation

The only native Mac OS X level editor for Quake 1

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

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

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

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

Editor used for 007 Nightfire map creation

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

A small VMF to JSON parser

Create a Map using color information through 2D

A tool for tweaking hammer settings and using multiple texture profiles

Multi Game Map Editor that supports Half-life

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.

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

Batch compile Source and GoldSrc Maps

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

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

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

Preview a map contained in a BSP file.

Optimizes the entities in compiled maps, allowing you to include more entities and also reduce network traffic.

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

Generate forests within your maps based on surface type

Q3 .map to HL2 .vmf converter

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

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

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

automatically finds mapfiles to compile in the directory it is run

Modified Compiler with support for large models and textures

Inserts instances into a map

Alternative to Hammer

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

Simple bindings for debugging maps

Batch map compiler for GoldSrc

BSP2OBJ is a command-line utility capable of converting Quake, Quake 2 and Half-Life map files into OBJ meshes

Batch files for killing the compile processes

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

Preview a map contained in a BSP file.

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

Custom DLL that supports transparency in Half-Life for Steam

List Maker automatically generates your maplist.txt and mapcycle.txt, it can be further used for making lists outside of Maplist making.

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

Windows interface that frontends the compiling utilities

Creates .Res files for Source games running on a server

Decompiles some BSP maps with most support for Nightfire 007

Hack the colors in WorldCraft

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

Find, display, and optionally round floating point plane coordinates in Source engine .vmf files.

GUI Compiler for Source Maps

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

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

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

Well made Russian Level Editor for GoldSrc

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

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

Older program used for editing entities within bsp maps

Simple tool for converting world units into Hammer Units

ZHLT rebuilt and up to date with latest engine build

Tools supporting the creation of HDR Images for the Engine

Decrypt files that have been protected with BSPProtect (commandline)

a 3D Shape Generator for the Quake & Half-Life Map Format

Collection of the main tools required for mapping with GoldSrc

Decompile Source .bsp files into Hammer .vmf files. Successor to VMEX

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.

Convert maps between Quake3 and Half-Life

Update to ZHLT

Open-source library for reading and editing BSP files

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.

Standalone units converter

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

Small tool for generating Random Source Maps

Rotates selected entity types in a map

Frontend wrapper for netvis

Collection of tools useful for mapping with GoldSrc

Alternative Map Editor for GoldSrc games

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

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

Small application for viewing map files, Superseded by crafty

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

Legacy compilation tools for quake

Useful tool for extracting the contents of BSP files