Level Creation

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

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

Batch files for killing the compile processes

Open-source library for reading and editing BSP files

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

Alternative Map Editor for GoldSrc games

RandMap is a random map generator for Half-Life

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

A tool for tweaking hammer settings and using multiple texture profiles

Update to ZHLT

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

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

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

Useful tool for extracting the contents of BSP files

Identifies and archives all dependencies for bsp files.

Older free for personal use version of Terragen for sculpting landscapes

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

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

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

Inserts instances into a map

Small prefab to help protect your map

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

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

Legacy compilation tools for quake

Valve Map Extractor modified version (Successor to VMEX)

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

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

Edit the entities of Source and GoldSrc games

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

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

Well made Russian Level Editor for GoldSrc

Older program used for editing entities within bsp maps

Create Displacements for your maps

GUI frontend for Source compiling tools

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

Collection of tools useful for mapping with GoldSrc

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

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

Simple bindings for debugging maps

Contains 3 Tools, BSP_View, BSP_Tool and BSP_Slicer all of which perform useful tasks on Half-Life Maps

Some Dev Texture guides to aid with level creation

Edit light values inside a Maps RAD file

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

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

Modified Compiler with support for large models and textures

Standalone Compiler for GoldSrc Maps

Preview a map contained in a BSP file.

Alternative Map Editor for GoldSrc games

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

View and Edit the Entity information of a compiled BSP Map

Generate mazes for your level in GoldSrc

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.

Adjust the light levels in a map

Convert Worldcraft 3.3 Maps into the Radiant Format

Small collection of obfuscation techniques for maps

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

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

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

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

A GUI tool for embedding custom content

Alternative to Hammer

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

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

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

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

Free, Opensource, drop-in editor replacement for Hammer

The Official Editor for Valve Games

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.

Standalone Compiler for Source Maps

Small tool for generating Random Source Maps

Create a custom light style for your goldSrc maps

Tool for compiling Maps from hammer

The only native Mac OS X level editor for Quake 1

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

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

Preview a map contained in a BSP file.

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.

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

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

Valve Map Extractor, Decompile BSP maps for source (original version)