Level Creation

Multi Game Map Editor that supports Half-life

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

Creates .Res files for Source games running on a server

Create an easily readable version of an FGD (commandline)

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

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

Create a Map using color information through 2D

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

A small collection of FGD's for Source

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

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

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

Modify the entities of a .map file by editing its text

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

A tool for compiling maps from VMF to BSP format

Batch map compiler for GoldSrc

Lists maps for easy maplist.txt

Free, Opensource, drop-in editor replacement for Hammer

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

GUI Compiler for Half-Life Maps

Hack the colors in WorldCraft

Used to take source-css console commands and convert them into .vmf-compatible commands.

Small collection of obfuscation techniques for maps

Older program used for editing entities within bsp maps

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

Great little application for viewing skys used in game

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

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.

ZHLT rebuilt and up to date with latest engine build

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

Alternative to Hammer

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

Small utility for helping protect bsp maps

Tools supporting the creation of HDR Images for the Engine

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

Decompile GoldSrc .bsp files into Hammer .map files.

Basic Model viewer for GoldSrc

Quake2/3 map surface generator

Decompiles some BSP maps with most support for Nightfire 007

Collection of the main tools required for mapping with GoldSrc

A tool for tweaking hammer settings and using multiple texture profiles

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

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

Older free for personal use version of Terragen for sculpting landscapes

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

Windows interface that frontends the compiling utilities

View and Edit the Entity information of a compiled BSP Map

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

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

Valve Map Extractor modified version (Successor to VMEX)

A tool to assist in the compiling of source engine maps

Small application for viewing map files, Superseded by crafty

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

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

Custom DLL that supports transparency in Half-Life for Steam

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

A small VMF to JSON parser

Q3 .map to HL2 .vmf converter

Some Dev Texture guides to aid with level creation

Useful tool for extracting the contents of BSP files

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

Alternative Map Editor for GoldSrc games

Legacy compilation tools for quake

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

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

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

Decrypt files that have been protected with BSPProtect (commandline)

Edit light values inside a Maps RAD file

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

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.

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

Identifies and archives all dependencies for bsp files.

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

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

Standalone units converter

Create Displacements for your maps

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

Alternative Map Editor for GoldSrc games

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