Level Creation

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

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

Batch compiler for automating Map Compilation

Collection of the main tools required for mapping with GoldSrc

Standalone units converter

Editor used for 007 Nightfire map creation

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

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

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

Standalone Compiler for GoldSrc Maps

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

Aids in nthe process of converting GoldSrc maps into Source maps

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

Older free for personal use version of Terragen for sculpting landscapes

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

The Official Editor for Valve Games

Lists maps for easy maplist.txt

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

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

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

Compiler and Decompiler rolled into one tool

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

Alternative to Hammer

Alternative to Hammer Editor for Level design

Small tool for generating Random Source Maps

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

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

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

Decrypt files that have been protected with BSPProtect (commandline)

Q3 .map to HL2 .vmf converter

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

The only native Mac OS X level editor for Quake 1

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

A tool for tweaking hammer settings and using multiple texture profiles

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

Valve Map Extractor modified version (Successor to VMEX)

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

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

A GUI tool for embedding custom content

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

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.

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

Simple tool for converting world units into Hammer Units

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

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

Simple bindings for debugging maps

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.

Open-source library for reading and editing BSP files

Standalone Compiler for Source Maps

Small utility for helping protect bsp maps

Create Displacements for your maps

Generate mazes for your level in GoldSrc

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

Legacy compilation tools for quake

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

Generate forests within your maps based on surface type

converts Minecraft files into vmf files

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

The Original official mapping utility from Valve

Well made Russian Level Editor for GoldSrc

Small application for viewing map files, Superseded by crafty

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

Edit light values inside a Maps RAD file

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

Collection of various bspconv exes i have found around the net

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

RandMap is a random map generator for Half-Life

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

Update to ZHLT

Random SP map generator for Half-Life

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

Collection of tools useful for mapping with GoldSrc

Useful tool for extracting the contents of BSP files

Tools supporting the creation of HDR Images for the Engine

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

Analyzes and reports on errors in the map compilation process

GUI frontend for Source compiling tools

A small VMF to JSON parser

Modified versions of the tools used in the Map compilation process

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