Level Creation

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

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

Quake2/3 map surface generator

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

A small VMF to JSON parser

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

Small collection of obfuscation techniques for maps

Create Displacements for your maps

converts Minecraft files into vmf files

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

The Official Editor for Valve Games

Generates Terrain for Games

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

Simple tool to change VTF versions from 7.5 to 7.4

Aids in nthe process of converting GoldSrc maps into Source maps

Custom DLL that supports transparency in Half-Life for Steam

A GUI tool for embedding custom content

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

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

Tools supporting the creation of HDR Images for the Engine

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

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

Create a custom light style for your goldSrc maps

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

Generate forests within your maps based on surface type

Preview a map contained in a BSP file.

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

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.

Compiler and Decompiler rolled into one tool

Small utility for helping protect bsp maps

Edit the entities of Source and GoldSrc games

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

Alternative to Hammer

Small prefab to help protect your map

Multi Game Map Editor that supports Half-life

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

Editor used for 007 Nightfire map creation

Decrypt files that have been protected with BSPProtect (commandline)

Valve Map Extractor modified version (Successor to VMEX)

Simple tool for converting world units into Hammer Units

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

GUI frontend for Source compiling tools

Alternative Map Editor for GoldSrc games

Modified Compiler with support for large models and textures

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

Frontend wrapper for netvis

Creates .Res files for Source games running on a server

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

Legacy compilation tools for quake

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

automatically finds mapfiles to compile in the directory it is run

Hack the colors in WorldCraft

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

Collection of tools useful for mapping with GoldSrc

makes textfiles to go with your overview pictures from Half-Life maps.

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

Entspy is program for viewing and editing the entities of compiled map

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

A tool for compiling maps from VMF to BSP format

A tool to generate cl_leveloverview from BSP files

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

Alternative to Hammer Editor for Level design

Batch compile Source and GoldSrc Maps

Free, Opensource, drop-in editor replacement for Hammer

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

Great little application for viewing skys used in game

this will pack every custom item into your map up to and including map over views

Useful tool for extracting the contents of BSP files

Small tool for generating Random Source Maps

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

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

Standalone units converter

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

Decompile GoldSrc .bsp files into Hammer .map files.

RandMap is a random map generator for Half-Life

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

Decompiles some BSP maps with most support for Nightfire 007

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

Modified versions of the tools used in the Map compilation process