Doom

Doom is a first-person shooter game developed and published by id Software. Released on December 10, 1993, for DOS.

Following Doom's success, the source code for the Doom engine was released under GNU GPLv2 in 1997 by John Carmack (the original source code can be found at https://github.com/id-Software/DOOM). It now lives on in multiple ports, though you will still need to have a copy of the original game's data to play it and Doom 2 (also called the "IWAD").

Installation

Games/WADs

Also see List of games#Shooters (FPS, third person) for more Doom-related packages. You can find WADs created by the community in the IDGames archive and other sites.

Freedoom

Freedoom aims to be a completely free and open source reimagining of Doom. Its WADs are intended to function as drop-in replacements for the commercial files compatible with the entire back catalog of Doom mods, thus enabling users to access them without the need to purchase non-free software. Install freedoom^AUR.

Doom Shareware

The doom1-wad^AUR package supplies the original Doom shareware IWAD.

Engines

GZDoom

An updated version of ZDoom, GZDoom is the go-to standard for compatibility with the most games based on the Doom engine. Install the gzdoom^AUR package to install it.

Chocolate Doom

Chocolate Doom is a port that tries to be as historically-accurate to the original games as possible. Install chocolate-doom^AUR.

DOOM Retro

DOOM Retro is based off of Chocolate Doom, but tailored to the project author's taste. Install doomretro.

DSDA-Doom

DSDA-Doom is a modern successor of PrBoom family of source ports. It is named after Doom Speed Demo Archive and includes features facilitating Doom speedrunning, among other improvements. Install dsda-doom^AUR.

Zandronum

Zandronum is a source port in the ZDoom family. Like its predecessor Skulltag, its main area of focus is on delivering great multiplayer support. It's packaged on the AUR as zandronum^AUR package.

You can also install the Doomseeker tool to conveniently find multiplayer servers. It's packaged as doomseeker^AUR on the AUR.

Editors

There exist a number of editors to manipulate the data in Doom WADs in order to create maps, weapons, and even whole games using the Doom engine.

SLADE

SLADE is a WAD inspector, allowing users to see and modify the data lumps within, such as textures, sprites, scripts and info lumps. It also comes with a built-in map editor. Install the slade^AUR package to install SLADE3.

Ultimate Doom Builder

Specifically a map editor, Ultimate Doom Builder is written in .NET, and is the de-facto standard for creating Doom maps. Install ultimate-doom-builder-git^AUR.

DoomTools

DoomTools is a suite of utilities written in Java that assist in creating modifications for Doom engine games. Most notable are DoomMake, which allows building mods in CMake-like fashion, and DECOHack, which simplifies creating DeHackEd patches by using domain-specific language. DoomTools are available by installing doomtools-bin^AUR

Eureka

Eureka is another map editor for Doom. It's available from the AUR as eureka^AUR.

Node builders

Note It's worth noting that as a player you don't need to worry about these, unless you are authoring your own WADs.

The original vanilla Doom engine as well as certain source ports require that custom WADs include a section (also known as a lump) that contains nodes. However, ZDoom-based source ports (including GZDoom) can build them on demand and they don't require that a WAD comes with them pre-generated. More information on nodes can be read at Doom Wiki and ZDoom Wiki.

As an example of a node builder is zdbsp^AUR, and it's available from the AUR. However, several others exists as well.

Configuration

Most Doom maps and mods will require a Doom or Doom 2 IWAD to work. Many modern source ports will look for WAD files in /usr/share/games/doom. You may override this path by setting DOOMWADDIR environment variable.

GZDoom

The base GZDoom config file is located under ~/.config/gzdoom/gzdoom.ini.

To add the directory containing your IWADs so that GZDoom can see it, add the following to the config file underneath [IWADSearch.Directories]:

Path=<path>,

where <path> is the path to where your IWADs are.

Troubleshooting

A good resource for troubleshooting GZDoom is the ZDoom Wiki. It also has good resources on mapping, scripting, and other information when creating for Doom. You can find a lot of information on Doom games at the community Doom Wiki. You can also ask questions on the Doom World forums.