Level Creation

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

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

Small tool for generating Random Source Maps

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.

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

Analyzes and reports on errors in the map compilation process

Well made Russian Level Editor for GoldSrc

A small VMF to JSON parser

A collection of FGD's for GoldSrc

Older program used for editing entities within bsp maps

Identifies and archives all dependencies for bsp files.

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

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

Creates .Res files for Source games running on a server

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

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

Batch compile Source and GoldSrc Maps

Generate forests within your maps based on surface type

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

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

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

Frontend wrapper for netvis

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

Basic Model viewer for GoldSrc

Batch files for killing the compile processes

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

Preview a map contained in a BSP file.

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

Decrypt files that have been protected with BSPProtect (commandline)

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

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

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

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

Simple bindings for debugging maps

Alternative Map Editor for GoldSrc games

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

The Original official mapping utility from Valve

Tools supporting the creation of HDR Images for the Engine

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.

The only native Mac OS X level editor for Quake 1

Older free for personal use version of Terragen for sculpting landscapes

Great little application for viewing skys used in game

Batch map compiler for GoldSrc

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

Windows interface that frontends the compiling utilities

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

Standalone units converter

View and Edit the Entity information of a compiled BSP Map

Custom DLL that supports transparency in Half-Life for Steam

Adjust the light levels in a map

Create an easily readable version of an FGD (commandline)

Generate mazes for your level in GoldSrc

Alternative to Hammer

Editor used for 007 Nightfire map creation

Modified Compiler with support for large models and textures

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

A GUI tool for embedding custom content

Create a custom light style for your goldSrc maps

Standalone Compiler for GoldSrc Maps

Free, Opensource, drop-in editor replacement for Hammer

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

Generates Terrain for Games

Rotates selected entity types in a map

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

ZHLT rebuilt and up to date with latest engine build

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

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

Hack the colors in WorldCraft

Open-source library for reading and editing BSP files

Inserts instances into a map

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

Q3 .map to HL2 .vmf converter

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.

Decompile GoldSrc .bsp files into Hammer .map files.

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

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

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

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