Level Creation

The only native Mac OS X level editor for Quake 1

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

GUI Compiler for Half-Life Maps

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

Small utility for helping protect bsp maps

Convert Worldcraft 3.3 Maps into the Radiant Format

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.

Q3 .map to HL2 .vmf converter

Inserts instances into a map

converts Minecraft files into vmf files

Windows interface that frontends the compiling utilities

Basic Model viewer for GoldSrc

Tools supporting the creation of HDR Images for the Engine

Useful tool for extracting the contents of BSP files

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

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

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

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

A tool to generate cl_leveloverview from BSP files

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

Collection of the main tools required for mapping with GoldSrc

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

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

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

Editor used for 007 Nightfire map creation

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

Rotates selected entity types in a map

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

Well made Russian Level Editor for GoldSrc

automatically finds mapfiles to compile in the directory it is run

View and Edit the Entity information of a compiled BSP Map

Edit light values inside a Maps RAD file

Batch compile Source and GoldSrc Maps

Preview a map contained in a BSP file.

Custom DLL that supports transparency in Half-Life for Steam

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.

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

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

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

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

Open-source library for reading and editing BSP files

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

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

Generates Terrain for Games

Great little application for viewing skys used in game

Frontend wrapper for netvis

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

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

Legacy compilation tools for quake

The Official Editor for Valve Games

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

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

Free, Opensource, drop-in editor replacement for Hammer

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

Generate mazes for your level in GoldSrc

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

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

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

A tool for tweaking hammer settings and using multiple texture profiles

Modified Compiler with support for large models and textures

Alternative Map Editor for GoldSrc games

Collection of tools useful for mapping with GoldSrc

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

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

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

Standalone units converter

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

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

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

Aids in nthe process of converting GoldSrc maps into Source maps

Decompile GoldSrc .bsp files into Hammer .map files.

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

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

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

A tool to assist in the compiling of source engine maps

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.

Small collection of obfuscation techniques for maps

Older free for personal use version of Terragen for sculpting landscapes

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

GUI Compiler for Source Maps