Level Creation

The only native Mac OS X level editor for Quake 1

Aids in nthe process of converting GoldSrc maps into Source maps

A tool to assist in the compiling of source engine maps

Useful tool for extracting the contents of BSP files

Modified Compiler with support for large models and textures

Create a Map using color information through 2D

automatically finds mapfiles to compile in the directory it is run

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.

Generates Terrain for Games

Collection of the main tools required for mapping with GoldSrc

A small VMF to JSON parser

This is Badger. It's a tool to generate levels for Half-Life 2, Black Mesa.

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

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

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

Batch compile Source and GoldSrc Maps

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

Simple bindings for debugging maps

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

Legacy compilation tools for quake

Collection of tools useful for mapping with GoldSrc

Alternative to Hammer

Simple tool for converting world units into Hammer Units

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.

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

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

Basic Model viewer for GoldSrc

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

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

Creates .Res files for Source games running on a server

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

Standalone Compiler for Source Maps

Older free for personal use version of Terragen for sculpting landscapes

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.

Custom DLL that supports transparency in Half-Life for Steam

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

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

Convert Worldcraft 3.3 Maps into the Radiant Format

Great little application for viewing skys used in game

Decompile GoldSrc .bsp files into Hammer .map files.

Small utility for helping protect bsp maps

Preview a map contained in a BSP file.

Generate forests within your maps based on surface type

Simple tool to change VTF versions from 7.5 to 7.4

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

Lists maps for easy maplist.txt

A collection of FGD's for GoldSrc

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

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

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

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

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

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

Decrypt files that have been protected with BSPProtect (commandline)

Adjust the light levels in a map

A GUI tool for embedding custom content

Generates displacements that would usually take an extremely long time, or just be impossible to do in Hammer.

Hack the colors in WorldCraft

Some Dev Texture guides to aid with level creation

Editor used for 007 Nightfire map creation

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

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

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

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

Tool for compiling Maps from hammer

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

A tool for tweaking hammer settings and using multiple texture profiles

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

Random SP map generator for Half-Life

Create an easily readable version of an FGD (commandline)

Open-source library for reading and editing BSP files

A tool to generate cl_leveloverview from BSP files

Valve Map Extractor modified version (Successor to VMEX)

GUI frontend for Source compiling tools

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

Convert maps between Quake3 and Half-Life

A tool for compiling maps from VMF to BSP format

Q3 .map to HL2 .vmf converter

Alternative to Hammer Editor for Level design

Batch map compiler for GoldSrc