Level Creation

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

Well made Russian Level Editor for GoldSrc

converts Minecraft files into vmf files

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

Simple tool for converting world units into Hammer Units

Edit the entities of Source and GoldSrc games

Multi Game Map Editor that supports Half-life

Creates .Res files for Source games running on a server

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

Q3 .map to HL2 .vmf converter

Create Displacements for your maps

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

Simple bindings for debugging maps

Generate mazes for your level in GoldSrc

Batch compiler for automating Map Compilation

Update to ZHLT

Useful tool for extracting the contents of BSP files

Generates Terrain for Games

Rotates selected entity types in a map

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

Free, Opensource, drop-in editor replacement for Hammer

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

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

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

Valve Map Extractor modified version (Successor to VMEX)

Compiler and Decompiler rolled into one tool

Decompile GoldSrc .bsp files into Hammer .map files.

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

Alternative Map Editor for GoldSrc games

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

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

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

A tool to assist in the compiling of source engine maps

Open-source library for reading and editing BSP files

View and Edit the Entity information of a compiled BSP Map

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

Batch map compiler for GoldSrc

Alternative to Hammer Editor for Level design

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

Custom DLL that supports transparency in Half-Life for Steam

The Official Editor for Valve Games

Random SP map generator for Half-Life

Alternative Map Editor for GoldSrc games

Adjust the light levels in a map

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.

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

Batch compile Source and GoldSrc Maps

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

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

RandMap is a random map generator for Half-Life

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

Simple tool to change VTF versions from 7.5 to 7.4

Preview a map contained in a BSP file.

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

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

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

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

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

Aids in nthe process of converting GoldSrc maps into Source maps

Batch files for killing the compile processes

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

Analyzes and reports on errors in the map compilation process

Quake2/3 map surface generator

Collection of tools useful for mapping with GoldSrc

Alternative to Hammer

Generate forests within your maps based on surface type

A collection of FGD's for GoldSrc

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

Some Dev Texture guides to aid with level creation

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

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

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

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.

Convert maps between Quake3 and Half-Life

Older free for personal use version of Terragen for sculpting landscapes

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

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