Level Creation

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

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

Update to ZHLT

A tool to generate cl_leveloverview from BSP files

Q3 .map to HL2 .vmf converter

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

Great little application for viewing skys used in game

Older free for personal use version of Terragen for sculpting landscapes

Small prefab to help protect your map

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

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

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

Hack the colors in WorldCraft

A GUI tool for embedding custom content

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

Small application for viewing map files, Superseded by crafty

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

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

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

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

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

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

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

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 collection of FGD's for GoldSrc

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

Create Displacements for your 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.

Convert maps between Quake3 and Half-Life

Inserts instances into a map

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

Alternative Map Editor for GoldSrc games

Lists maps for easy maplist.txt

Modified Compiler with support for large models and textures

Multi Game Map Editor that supports Half-life

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

Simple tool for converting world units into Hammer Units

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

Alternative to Hammer Editor for Level design

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

This project is a prototype map renderer for Half-Life BSP files.

The Original official mapping utility from Valve

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

Small collection of obfuscation techniques for maps

Valve Map Extractor modified version (Successor to VMEX)

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

Quake2/3 map surface generator

Generates Terrain for Games

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

Rotates selected entity types in a map

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

Basic Model viewer for GoldSrc

Alternative Map Editor for GoldSrc games

Generate mazes for your level in GoldSrc

fixes the annoying Navigation Mesh was built using a different version of this map

Small tool for generating Random Source Maps

Windows interface that frontends the compiling utilities

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

Tool for compiling Maps from hammer

Edit the entities of Source and GoldSrc games

converts Minecraft files into vmf files

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

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

Crafty is a 3D object, material, model and file browsing utility for Source & GoldSrc Maps.

A tool to assist in the compiling of source engine maps

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

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

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

Standalone Compiler for Source Maps

Collection of tools useful for mapping with GoldSrc

A small collection of FGD's for Source

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

Standalone Compiler for GoldSrc Maps

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

Random SP map generator for Half-Life

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

Well made Russian Level Editor for GoldSrc

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.

Edit light values inside a Maps RAD file

Free, Opensource, drop-in editor replacement for Hammer