Terrain generator for GoldSrc/Source games.

MMORPG attempt in Quake (DarkPlaces)

Berserker Quest 6: The curse of the onyx medallion is a punishingly difficult and somewhat light-hearted co-op/singleplayer dungeon crawler.

Cool rpg attempt with random map generation.

This quake mod was started by Gooseman, the man behind CouterStrike. Very nicely done. GL compatible, Navy Seals weapons compilation patch. Includes a couple of levels.

This is the original vanilla quake-c with all the compiler warnings fixed.

Source code of the popular quake mod "Navy Seals".

Add ropes or wires to your quake mod.

This is just the QuakeC source for vanilla Quake for modders to use.

A tool for modifying and merging Half-life maps without decompiling.

Convert VMT to MAP file format. Requires Python.

This is a console program that imports *.osm text file, and exports VMF, MAP, OBJ.

This addon allows exporting Blender scenes to idTech .map file format.

QPakMan is a command-line (text only) program for managing the PAK and WAD files used by the games Quake, Quake II and Hexen II.

A nice, custom, GUI that allows extracting Garry's Mod addon files (.GMA).

PakScape is a PAK and PK3 explorer/creator. It doubles as a ZIP explorer/creator because PK3 files are really ZIP files.

GCFScape is a small tool that can open and extract from BSP, WAD, PAK, GCF, VPK, NCP, XZP files.

VTFEdit is a powerful tool allowing files of various formats to be converted to/from VTF format in all of the Source texture formats.

quake-cli-tools is a set of command line tools for creating Quake content.

Very powerful tool that can download items from Steam workshop, unpack/pack VPK and GMA, view models, decompile and compile models.

QuakeC user defined language .xml file for Notepad++. Light and Dark Theme based on Visual Studio.

Pack of utils to extract WAD file from Half-life or Quake BSP. This includes TExtract suite, wintextract, textract, BSP2WAD.

Random singleplayer map generator for Half-Life by SuperJer

Working decompiler for GoldSrc games and Quake.

Awesome tool that can view and convert models. Support MD5, MD3, MDL, IQM, SMD, OBJ, FBX, DAE, glTF, RDM and much more!

Awesome tool for viewing and converting static meshes. Support up to 850+ file formats.

Simple tool for viewing Quake 1 .MDL. Similar to Jed's Half-life Model Viewer.

Crafty is a 3D object, material, model and file browsing utility targeted towards Half-Life modders.

kHED is a 3d low-poly model editor for indie game developers and modding enthusiasts.

Tool that can compile .DPM and .MD3 models from Half-life .SMD.