Level Creation

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

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

Convert Worldcraft 3.3 Maps into the Radiant Format

Update to ZHLT

Create a Map using color information through 2D

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

Tools supporting the creation of HDR Images for the Engine

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

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

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

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

Simple bindings for debugging maps

A GUI tool for embedding custom content

Rotates selected entity types in a map

A tool for tweaking hammer settings and using multiple texture profiles

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

Create Displacements for your maps

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

Identifies and archives all dependencies for bsp files.

Alternative Map Editor for GoldSrc games

Edit light values inside a Maps RAD file

Preview a map contained in a BSP file.

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

Well made Russian Level Editor for GoldSrc

This is a modified VBSP that does not delete prop_static entities using models with propdata

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

A small VMF to JSON parser

Batch map compiler for GoldSrc

The Original official mapping utility from Valve

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

Inserts instances into a map

Small tool for generating Random Source Maps

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

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

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.

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

Basic Model viewer for GoldSrc

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

Custom DLL that supports transparency in Half-Life for Steam

GUI Compiler for Source Maps

Convert maps between Quake3 and Half-Life

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

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

Batch files for killing the compile processes

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

Simple tool to change VTF versions from 7.5 to 7.4

GUI frontend for Source compiling tools

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

The only native Mac OS X level editor for Quake 1

Some Dev Texture guides to aid with level creation

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

A tool for compiling maps from VMF to BSP format

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

Older program used for editing entities within bsp maps

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

A small collection of FGD's for Source

Collection of various bspconv exes i have found around the net

View and Edit the Entity information of a compiled BSP Map

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

Small utility for helping protect bsp maps

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

Lists maps for easy maplist.txt

Batch compile Source and GoldSrc Maps

automatically finds mapfiles to compile in the directory it is run

Free, Opensource, drop-in editor replacement for Hammer

The open source, cross platform level editor for id Tech games.

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

Batch compiler for automating Map Compilation

Older free for personal use version of Terragen for sculpting landscapes

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

converts Minecraft files into vmf files

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

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.

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

Create a custom light style for your goldSrc maps

The Official Editor for Valve Games

A tool to generate cl_leveloverview from BSP files

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

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