Level Creation

Convert Worldcraft 3.3 Maps into the Radiant Format

Useful tool for extracting the contents of BSP files

GUI Compiler for Source Maps

Well made Russian Level Editor for GoldSrc

Create a Map using color information through 2D

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

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

Generates Terrain for Games

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

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

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

GUI Compiler for Half-Life Maps

Small application for viewing map files, Superseded by crafty

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

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

Preview a map contained in a BSP file.

Editor used for 007 Nightfire map creation

A tool for compiling maps from VMF to BSP format

Create Displacements for your maps

A collection of FGD's for GoldSrc

A small collection of FGD's for Source

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

Standalone Compiler for GoldSrc Maps

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

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

Collection of tools useful for mapping with GoldSrc

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

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

Collection of various bspconv exes i have found around the net

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

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

Small prefab to help protect your map

Quake2/3 map surface generator

Analyzes and reports on errors in the map compilation process

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

View and Edit the Entity information of a compiled BSP Map

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

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

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

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

Small collection of obfuscation techniques for maps

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

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

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.

automatically finds mapfiles to compile in the directory it is run

Alternative Map Editor for GoldSrc games

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

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

Simple bindings for debugging maps

Rotates selected entity types in a map

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

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

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

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.

A tool to generate cl_leveloverview from BSP files

Inserts instances into a map

Update to ZHLT

Compiler and Decompiler rolled into one tool

The Original official mapping utility from Valve

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

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

Valve Map Extractor modified version (Successor to VMEX)

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

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

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

Generate mazes for your level in GoldSrc

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

Generate forests within your maps based on surface type

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

Collection of the main tools required for mapping with GoldSrc

Decompile GoldSrc .bsp files into Hammer .map files.

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

A small VMF to JSON parser

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

Convert maps between Quake3 and Half-Life

Custom DLL that supports transparency in Half-Life for Steam

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

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