Official add-ons


The add-ons menu on Xbox One.

The official add-ons are third-party PWADs that can be downloaded for free from to be played with the Doom Classic Unity port. Since console manufacturers do not usually allow players to use third-party content unless vetted by the publisher of the game, the official add-ons system allows a selection of modifications to be downloaded and played instead of being limited to the IWADs.

Official add-ons are curated to ensure they are playable within the raised limits of Doom Classic, and to avoid potential copyright infringement in their content. Last but not least, the written legal consent of all involved authors for each and every included asset is mandatory, so that they all have to be contactable by id Software in order to license their work.[1][2]

The two Final Doom IWADs are available as official add-ons for both The Ultimate Doom and Doom II. This effectively makes Final Doom free for all owners of either Classic Doom titles on Thanks to DMAPINFO and, mainly, the ability of its engine of running, regardless of the base game, in The Ultimate Doom mode should the loaded PWAD contain an E1M1 lump and, conversely, in Doom II mode should it contain a MAP01 lump, most of the curated PWADs are made available to both games. This, however, requires the merging of the PWAD in question with its target IWAD, converting said PWAD into a standalone IWAD.[3]

Note that "official" in this context refers to provision of the content by id Software.[4] There has been no statement indicating that the modifications created by the community should be considered canonical story-wise.

As of August 18, 2022, all add-ons are available for both Doom and Doom II.[5]

List of official add-ons[edit]

Title Image Name Authors Original release Made available Last update Number
Anomaly Report title.png Anomaly Report Michael Jan Krizik (valkiriforce) 2022/05/05 2022/07/05 2022/07/05 16
Arrival Title.png Arrival Walker Wright (Pavera) and Brayden Hart (AD_79) 2021/04/15 2022/04/12 2022/04/12 15
Base Ganymede title.png Base Ganymede Adam Woodmansey (Khorus) 2012/01/20 2023/05/09 2023/05/09 18
BTSXE1 Official.png BTSX Episode 1 Esselfortium et al. 2012/12/10 2020/06/25 2020/08/13 8
BTSXE2 Official.png BTSX Episode 2 Esselfortium et al. 2014/09/01 2020/08/14 2020/08/17 9
Deathless title.png Deathless James Paddock 2018/11/09 2020/05/14 2022/08/18 7
Doom Zero title.png Doom Zero Christopher Golden (DASI-I) 2019/09/30 2020/12/15 2020/12/15 11
Double Impact title.png Double Impact Ralphis & RottKing 2011/03/31 2020/02/13 2020/09/03 5
Earthless Prelude title.png Earthless: Prelude James Paddock & Fuzzball 2021/03/30 2021/07/22 2021/07/22 13
Harmony title.png Harmony Thomas van der Velden, James Paddock 2009/11/02 2022/10/18 2022/10/18 17
No End In Sight title.png No End In Sight Emil Brundage, Christopher Lutz, Xaser 2016/11/20 2020/03/31 2022/08/18 6
NoRestForTheLiving logo.png No Rest for the Living Nerve Software 2010/05/26 2020/01/09 2022/08/18 3
Plutonia title.gif The Plutonia Experiment Dario Casali & Milo Casali 1996/06/17 2020/01/09 2020/09/03 2
REKKR title.png REKKR Matthew Little (Revae) et al. 2018/07/10 2020/09/22 2020/09/22 10
Revolution title.png Revolution! + MIDI Pack Thomas van der Velden; MIDI pack contributors 2003/01/18 2022/08/18 2022/08/18 14
Scientist 2023 Title.png Scientist Roland van der Velden 2005/10/15 2023/08/10 2023/08/10 19
SIGIL title.png SIGIL Romero Games 2019/05/22 2020/01/09 2022/08/18 4
SIGIL II title.png SIGIL II Romero Games 2023/12/10 2023/12/12 2023/12/12 21
Syringe title.png Syringe Pavera, Tarnsman, Marcaek, & Xaser 2019/12/24 2021/04/22 2022/08/18 12
TNT title.gif TNT: Evilution Team TNT 1996/06/17 2020/01/09 2020/09/03 1
TTP Title.png The Troopers' Playground Matthias Worch 1996/03/29 2023/11/30 2023/11/30 20

Technical details[edit]

On PC, the games are downloaded to subfolders of Users\<username>\Saved Games\id Software\DOOM Classic\WADs or Users\<username>\Saved Games\id Software\DOOM 2\WADs. The Saved Games folder exists under the Windows "Users" directory, which typically exists on the C:\ drive, and then under the folder named for the user who played the game when the modifications were downloaded; a full example would appear similar to C:\Users\JohnDoe\Saved Games. On Android, the folders are Android/Data/com.Bethsoft.DOOM/files/WADs and Android/Data/com.Bethsoft.DOOMII/files/WADs, located within, typically, the /sdcard/ directory. On other platforms, the add-ons folders are not meant to be accessed by the user.

Each folder contains the add-on data WAD as a file named simply after its number (and without extension, so for example instead of plutonia.wad it is simply named 2), four numbered JPG images named after the add-on, typically representing the title screen and three screenshots (e.g. plutonia1.jpg, plutonia2.jpg, plutonia3.jpg, and plutonia4.jpg), and a metadata file containing the add-on's description in English, French, Italian, German, and Spanish, as well as the release date (in YYYY/M/D format), the path to the main data, and the names of the images.

See also[edit]


  1. Rubits, Mike (25 February 2020). Doomworld forums post. Doomworld forums. Retrieved 18 April 2020.
  2. Rubits, Mike (16 May 2020). Doomworld forums post. Doomworld forums. Retrieved 16 December 2020.
  3. Rubits, Mike (23 April 2021). Doomworld forums post. Doomworld forums. Retrieved 23 April 2021.
  4. Rubits, Mike (20 January 2020). Doomworld forums post. Doomworld forums. Retrieved 18 April 2020.
  5. Parker Wilhelm (18 August 2022). "Hours upon hours of demon slaying await in DOOM (1993) and DOOM II's free Add-Ons." (archived 🏛). Retrieved 21 August 2022.