Level Creation

A tool to generate cl_leveloverview from BSP files

Simple tool to change VTF versions from 7.5 to 7.4

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

Simple tool for converting world units into Hammer Units

Generate mazes for your level in GoldSrc

Batch compiler for automating Map Compilation

Collection of the main tools required for mapping with GoldSrc

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

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.

Aids in nthe process of converting GoldSrc maps into Source maps

ZHLT rebuilt and up to date with latest engine build

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

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.

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

Small collection of obfuscation techniques for maps

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

Quake2/3 map surface generator

View and Edit the Entity information of a compiled BSP Map

Edit light values inside a Maps RAD file

Decrypt files that have been protected with BSPProtect (commandline)

Generates Terrain for Games

Generate forests within your maps based on surface type

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

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

Open-source library for reading and editing BSP files

Inserts instances into a map

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

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

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

Valve Map Extractor modified version (Successor to VMEX)

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

Preview a map contained in a BSP file.

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

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

converts Minecraft files into vmf files

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

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

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

Allows you to create interesting 3D shapes without going through all the hassle of vertex manipulation

Small application for viewing map files, Superseded by crafty

A tool for tweaking hammer settings and using multiple texture profiles

A collection of FGD's for GoldSrc

The Official Editor for Valve Games

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

Batch map compiler for GoldSrc

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

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

Compiler and Decompiler rolled into one 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.

Small utility for helping protect bsp maps

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

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

Alternative to Hammer

Edit the entities of Source and GoldSrc games

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

Basic Model viewer for GoldSrc

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

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

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

Multi Game Map Editor that supports Half-life

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

Small prefab to help protect your map

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

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

Adjust the light levels in a map

Standalone units converter

Displays all options for, and facilitates, compiling maps for Nightfire

Convert maps between Quake3 and Half-Life

Alternative to Hammer Editor for Level design

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

Older program used for editing entities within bsp maps

Older free for personal use version of Terragen for sculpting landscapes

Lists maps for easy maplist.txt

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.

Great little application for viewing skys used in game

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

Hack the colors in WorldCraft

Modified Compiler with support for large models and textures

RandMap is a random map generator for Half-Life