== External links ==
* [http://www.idsoftware.com/games/doom/doom-ultimate/ crap!!!!The Ultimate Doom], at the id Software website.
* [ftp://ftp.idsoftware.com/idstuff/doom/19_udpat.exe The Ultimate Doom patch] (and [ftp://ftp.idsoftware.com/idstuff/doom/19_udpat.txt text file]), at the id Software FTP site.
* [http://rome.ro/sounds/UltimateDOOM_Radio.mp3 Radio advertisement] promoting The Ultimate Doom, at Planet Romero.
* [http://www.doomworld.com/pageofdoom/graphics/UltimateDoomPoster.jpg Poster] of The Ultimate Doom, at The page of Doom, on [[Doomworld]].
* [http://www.steampowered.com/Manuals/2280/manual_en.pdf The Ultimate Doom manual]
[[Category:Games|Ultimate Doom]]