Level Creation

Simple tool to change VTF versions from 7.5 to 7.4

converts Minecraft files into vmf files

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

Edit light values inside a Maps RAD file

Compiler and Decompiler rolled into one tool

Lists maps for easy maplist.txt

The only native Mac OS X level editor for Quake 1

Create a Map using color information through 2D

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

Older program used for editing entities within bsp maps

This program will help you to manage all your customs files, for your maps , texture, models or mods

Inserts instances into a map

This is the barebones program that GFlip uses as it's base

Small application for viewing map files, Superseded by crafty

Identifies and archives all dependencies for bsp files.

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

Convert Worldcraft 3.3 Maps into the Radiant Format

A GUI tool for embedding custom content

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

Free, Opensource, drop-in editor replacement for Hammer

Simple tool for converting world units into Hammer Units

Small prefab to help protect your map

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

Alternative to Hammer

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

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

GUI Compiler for Half-Life Maps

Open-source library for reading and editing BSP files

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

A tool for tweaking hammer settings and using multiple texture profiles

Useful tool for extracting the contents of BSP files

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

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.

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

Multi Game Map Editor that supports Half-life

Edit the entities of Source and GoldSrc games

A collection of FGD's for GoldSrc

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

Create an easily readable version of an FGD (commandline)

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

Aids in nthe process of converting GoldSrc maps into Source maps

A tool to generate cl_leveloverview from BSP files

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

The Original official mapping utility from Valve

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 Official Editor for Valve Games

Valve Map Extractor modified version (Successor to VMEX)

A tool to assist in the compiling of source engine maps

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

Well made Russian Level Editor for GoldSrc

A small VMF to JSON parser

Older free for personal use version of Terragen for sculpting landscapes

Collection of tools useful for mapping with GoldSrc

Adjust the light levels in a map

Alternative to Hammer Editor for Level design

A tool for compiling maps from VMF to BSP format

Hack the colors in WorldCraft

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

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

A small collection of FGD's for Source

Small tool for generating Random Source Maps

Preview a map contained in a BSP file.

Convert maps between Quake3 and Half-Life

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

Modified Compiler with support for large models and textures

This tool is used to create the smallest convex brush containing all points in the input file. Input file can be .smd (use its vertexes), .map (brushes and point entities) or .pts file.

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

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

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

Tools supporting the creation of HDR Images for the Engine

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

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

Creates .Res files for Source games running on a server

Q3 .map to HL2 .vmf converter

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

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

Generates Terrain for Games

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

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