Level Creation

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

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

Tool for compiling Maps from hammer

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

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

Adjust the light levels in a map

Inserts instances into a map

Create a Map using color information through 2D

Convert maps between Quake3 and Half-Life

Batch files for killing the compile processes

Batch compile Source and GoldSrc Maps

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

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

Some Dev Texture guides to aid with level creation

Generate mazes for your level in GoldSrc

Small tool for generating Random Source Maps

Collection of tools useful for mapping with GoldSrc

Windows interface that frontends the compiling utilities

Create a custom light style for your goldSrc maps

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

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

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

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

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

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

Standalone Compiler for Source Maps

Preview a map contained in a BSP file.

Hack the colors in WorldCraft

A GUI tool for embedding custom content

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

Lists maps for easy maplist.txt

Alternative to Hammer

Batch compiler for automating Map Compilation

Well made Russian Level Editor for GoldSrc

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

Aids in nthe process of converting GoldSrc maps into Source maps

Random SP map generator for Half-Life

A small collection of FGD's for Source

DirectX based application to open and view Half Life 1 game files (Source Code)

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

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

Modified Compiler with support for large models and textures

converts Minecraft files into vmf files

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

Edit the entities of Source and GoldSrc games

Small application for viewing map files, Superseded by crafty

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

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

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

Simple tool to change VTF versions from 7.5 to 7.4

Identifies and archives all dependencies for bsp files.

The only native Mac OS X level editor for Quake 1

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

A collection of FGD's for GoldSrc

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

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

GUI frontend for Source compiling tools

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.

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

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

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.

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

View and Edit the Entity information of a compiled BSP Map

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

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

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

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.

A small VMF to JSON parser

Great little application for viewing skys used in game

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

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

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

Legacy compilation tools for quake

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

Custom DLL that supports transparency in Half-Life for Steam

Useful tool for extracting the contents of BSP files

Basic Model viewer for GoldSrc

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.

Older free for personal use version of Terragen for sculpting landscapes