Level Creation

Alternative to Hammer Editor for Level design

Edit light values inside a Maps RAD file

Generate forests within your maps based on surface type

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

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

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

View and Edit the Entity information of a compiled BSP Map

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

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

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

Small prefab to help protect your map

Creates .Res files for Source games running on a server

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

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

The Official Editor for Valve Games

Decompiles some BSP maps with most support for Nightfire 007

Random SP map generator for Half-Life

Older free for personal use version of Terragen for sculpting landscapes

Adjust the light levels in a map

Tool for compiling Maps from hammer

Convert Worldcraft 3.3 Maps into the Radiant Format

A tool for compiling maps from VMF to BSP format

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

Basic Model viewer for GoldSrc

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

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

Some Dev Texture guides to aid with level creation

Inserts instances into a map

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

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.

Aids in nthe process of converting GoldSrc maps into Source maps

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

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

GUI Compiler for Source Maps

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

Small collection of obfuscation techniques for maps

Identifies and archives all dependencies for bsp files.

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

Older program used for editing entities within bsp maps

Decrypt files that have been protected with BSPProtect (commandline)

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

Modified versions of the tools used in the Map compilation process

Create Displacements for your maps

The only native Mac OS X level editor for Quake 1

Batch map compiler for GoldSrc

A tool to assist in the compiling of source engine maps

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

Windows interface that frontends the compiling utilities

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

Collection of tools useful for mapping with GoldSrc

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.

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

converts Minecraft files into vmf files

Small tool for generating Random Source Maps

Batch compiler for automating Map Compilation

Lists maps for easy maplist.txt

Edit the entities of Source and GoldSrc games

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

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

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

automatically finds mapfiles to compile in the directory it is run

Useful tool for extracting the contents of BSP files

Free, Opensource, drop-in editor replacement for Hammer

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

Preview a map contained in a BSP file.

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.

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

A collection of FGD's for GoldSrc

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

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

Standalone Compiler for Source Maps

The Original official mapping utility from Valve

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

Standalone Compiler for GoldSrc Maps

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

Generate mazes for your level in GoldSrc

Open-source library for reading and editing BSP files

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

Convert maps between Quake3 and Half-Life