Level Creation

Great little application for viewing skys used in game

Convert Worldcraft 3.3 Maps into the Radiant Format

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

Alternative to Hammer

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

Small collection of obfuscation techniques for maps

A tool to generate cl_leveloverview from BSP files

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

Basic Model viewer for GoldSrc

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

Standalone Compiler for Source Maps

Simple tool for converting world units into Hammer Units

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

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

Rotates selected entity types in a map

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

Quake2/3 map surface generator

A small collection of FGD's for Source

Decompiles some BSP maps with most support for Nightfire 007

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

Convert maps between Quake3 and Half-Life

Create a Map using color information through 2D

Generates Terrain for Games

Standalone units converter

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

Standalone Compiler for GoldSrc Maps

Joiner is a little application that reads in a template .vmf file and produces a new .vmf filled with supports based on your template and customised settings or config.

The Official Editor for Valve Games

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

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

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

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

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

Preview a map contained in a BSP file.

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

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

Useful tool for extracting the contents of BSP files

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

Small prefab to help protect your map

The only native Mac OS X level editor for Quake 1

Older program used for editing entities within bsp maps

Edit light values inside a Maps RAD file

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.

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

ZHLT rebuilt and up to date with latest engine build

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

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

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

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

A tool for tweaking hammer settings and using multiple texture profiles

Alternative Map Editor for GoldSrc games

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

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

Tool for compiling Maps from hammer

GUI Compiler for Source Maps

Collection of the main tools required for mapping with GoldSrc

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

Small application for viewing map files, Superseded by crafty

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

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.

A collection of FGD's for GoldSrc

Analyzes and reports on errors in the map compilation process

Frontend wrapper for netvis

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

GUI Compiler for Half-Life Maps

Legacy compilation tools for quake

Modified versions of the tools used in the Map compilation process

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

Collection of tools useful for mapping with GoldSrc

GUI frontend for Source compiling tools

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

Random SP map generator for Half-Life

Batch compile Source and GoldSrc Maps

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

converts Minecraft files into vmf files

Generate forests within your maps based on surface type

Update to ZHLT

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

A tool for compiling maps from VMF to BSP format

Tools supporting the creation of HDR Images for the Engine