Level Creation

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

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

Standalone Compiler for Source Maps

Batch compiler for automating Map Compilation

Create a Map using color information through 2D

Older free for personal use version of Terragen for sculpting landscapes

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

Simple bindings for debugging maps

Decompile GoldSrc .bsp files into Hammer .map files.

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

automatically finds mapfiles to compile in the directory it is run

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

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

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

Legacy compilation tools for quake

Batch compile Source and GoldSrc Maps

Tool for compiling Maps from hammer

Alternative to Hammer Editor for Level design

Generates Terrain for Games

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

Inserts instances into a map

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

Standalone units converter

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

Rotates selected entity types in a map

Small collection of obfuscation techniques for maps

Decompiles some BSP maps with most support for Nightfire 007

Tools supporting the creation of HDR Images for the Engine

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.

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

Adjust the light levels in a map

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.

Lists maps for easy maplist.txt

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

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

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

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

A tool to assist in the compiling of source engine maps

Basic Model viewer for GoldSrc

GUI frontend for Source compiling tools

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

Create Displacements for your maps

Simple tool for converting world units into Hammer Units

RandMap is a random map generator for Half-Life

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

Useful tool for extracting the contents of BSP files

Simple tool to change VTF versions from 7.5 to 7.4

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

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

Generate mazes for your level in GoldSrc

Convert Worldcraft 3.3 Maps into the Radiant Format

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

Edit light values inside a Maps RAD file

Open-source library for reading and editing BSP files

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

Compiler and Decompiler rolled into one tool

A tool to generate cl_leveloverview from BSP files

Edit the entities of Source and GoldSrc games

Update to ZHLT

Hack the colors in WorldCraft

Well made Russian Level Editor for GoldSrc

Standalone Compiler for GoldSrc Maps

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

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

Create a custom light style for your goldSrc maps

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

Collection of tools useful for mapping with GoldSrc

Custom DLL that supports transparency in Half-Life for Steam

Alternative Map Editor for GoldSrc games

Create an easily readable version of an FGD (commandline)

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.

Random SP map generator for Half-Life

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

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

Preview a map contained in a BSP file.

A collection of FGD's for GoldSrc

The Original official mapping utility from Valve

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

Q3 .map to HL2 .vmf converter