History Trivia / Doom

** [[TheLordOfTheRings Éomer]] goes to Mars, where his sister [[DieAnotherDay Miranda Frost]] works, with [[DwayneJohnson The Rock]].

** Pinky was in the [[Series/BandOfBrothers 101st AirBorne]] before he got sent to Mars.

* One step backwards from the engine used in ''VideoGame/Wolfenstein3D'' is that sectors could not move horizontally. A result of this is that ''Doom'' doors, at least in stock maps, always open upwards, compared to the sideways-opening doors and pushwalls to secret areas in ''[=Wolf3D=]'' - it was not possible to replicate that sort of behavior on the Doom engine until the version that ''VideoGame/{{Hexen}}'' was built on.

* NotSafeForWork: ''Doom'' is notably deemed Not Safe for Productiviy. Its wide distribution made it one of the most popular leisure applications to be found at [[http://doom.wikia.com/wiki/Doom_in_workplaces workplaces]] and universities. One [[GuiltBasedGaming quit message]] in ''Doom II'' parodies it.

* UrbanLegendOfZelda: Shortly after the UsefulNotes/{{Columbine}} school shooting, it was discovered that both boys were fans of ''Doom'', which lead to claims that Dylan Klebold made custom [=WADs=] based off of the school for "training". While Klebold did make levels (and apparently, a mod that makes the game BloodierAndGorier), none of them are modeled off of Columbine High, and when taken on their own reviewers have called the "Klebold Levels" average-to-sub par.

** TNT also derives from the creators, TeamTNT, who were a modding group for Doom; the commercial addition of Evilution to Final Doom was rather detested by the Doom community at the time, as TNT: Evilution was assumed to be another free megawad. This is an early example of a third-party mod being adopted by the original creators.

** You go back into Hell in both Final Doom games as well; don't see how that makes Doom 64 a black sheep.

* WhatCouldHaveBeen: Tom Hall, one of the lead developers, had plans to wove in a more detailed story for the game and introduce several fleshed-out characters. JohnCarmack was heavily against this idea, claiming that doing so would overcomplicate the game, believing that the concept of "Shooting demons on Mars" would be enough to keep the players invested.
** Several weapons planned for the first game included a 'Dark Claw' (which would've drained life from enemies), 'Probjectile' (same as the regular pistol except it gives you enemy stats), 'Spray Rifle' (same as the shotgun, but wider shots), a bayonet (another melee weapon) and the 'Unmaker' (a weapon that would've done more damage depending on the enemy types).

** It also introduces the Nightmare Imps, an obvious shout-out to the Nightmare Spectres introduced in the Playstation version of the original Doom.
** Doom 64 may be a sequel to the PlayStation port of Doom, rather than the PC version. It uses the same sound effects and similar ambient music that PS1 Doom used and was developed by Midway.

* One of the designers for the original ''VideoGame/{{Doom}}'' games, Sandy Petersen, was the original designer of the ''CallOfCthulhu'' [[TabletopGames tabletop game]].

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* FandomLifeCycle: The classic ''Doom'' games seem to be in stage 6a, with an active community, but nowhere near mainstream.

* One step backwards from the engine used in ''VideoGame/Wolfenstein3D'' is that sectors could not move horizontally. A result of this is that ''Doom'' doors, at least in stock maps, always open upwards, compared to the sideways-opening doors and pushwalls to secret areas in ''[=Wolf3D=]'' - it was not possible to replicate that sort of behavior on the Doom engine until the version that ''{{Hexen}}'' was built on.

* One of the designers for the original ''{{Doom}}'' games, Sandy Petersen, was the original designer of the ''{{Call of Cthulhu}}'' [[TabletopGames tabletop game]].
** Sandy, by the way, is a [[{{UsefulNotes/Mormonism}} Mormon]]. Which didn't stop him from helping to develop a game crammed with Satanic elements. Quoth the man himself to JohnRomero:

* One of the secret levels in the {{PlayStation}} port of the original games is a nightclub, complete with rave music.
* The shotgun weapon sprites from the classic games are scanned images of a Tootsie Toy cap gun.

* One of the rock textures is actually from ''VideoGame/{{Wolfenstein 3D}}''. [[spoiler:And we don't mean in the secret Wolfenstein levels, either.]]

** TNT also derives from the creators, TeamTNT, who were a modding group for Doom; the commercial addition of Evilution to Final Doom was rather detested by the Doom community at the time, as TNT: Evilution was assumed to be another free megawad. This is an early example of a third-party mod being adopted by the original creators.

* Think the Soul Cube/Artifact were unique weapons to ''Doom 3''? Think again; ''Doom 64'' had them first, in the form of the Unmaker and the Dark Claw, two unfortunately DummiedOut weapons that were originally supposed to work similarly to the Soul Cube/Artifact; the Unmaker even has "upgrades" to it, in the same manner the Artifact gains its powers.
* HeyItsThatVoice: In ''Resurrection of Evil'' one of the audio logs is spoke by Scott Menville, who did the voice of Robin in the ''WesternAnimation/TeenTitans'' cartoon. Hearing the voice of ''Robin'' speaking in utter terror about demons is pretty funny.

** ''KnightsOfTheOldRepublic'' veterans may recognize Councilor Elliot Swann (played by Charles Dennis) as Davik Kang (the first game) or Lt. Dol Grenn (the second one). He also voiced Zherron in the latter game, but he's more difficult to recognize in that role.

* UrbanLegendOfZelda: Shortly after the {{Columbine}} school shooting, it was discovered that both boys were fans of ''Doom'', which lead to claims that Dylan Klebold made custom [=WADs=] based off of the school for "training". While Klebold did make levels (and apparently, a mod that makes the game BloodierAndGorier), none of them are modeled off of Columbine High, and when taken on their own reviewers have called the "Klebold Levels" average-to-sub par.

** ''KnightsOfTheOldRepublic'' veterans may recognize Councilor Elliot Swann (played by Charles Dennis) as Davik Kang (KotOR) or Lt. Dol Grenn (KotOR II). He also voiced Zherron in the latter game, but he's more difficult to recognize in that role.

* One step backwards from the engine used in ''VideoGame/Wolfenstein3D'' is that sectors could not move horizontally. A result of this is that ''Doom'' doors, at least in stock maps, always open upwards, compared to the sideways-opening doors in ''[=Wolf3D=]'' - it was not possible to replicate that sort of behavior on the Doom engine until the version that ''{{Hexen}}'' was built on.

* One of the rock textures is actually from ''{{Wolfenstein 3D}}''. [[spoiler:And we don't mean in the secret Wolfenstein levels, either.]]

** Sgt. Kelly is Lt. Kellaway from ''TheMask'' (animated version)

* [=~Hey, It's That Voice~=]: In ''Resurrection of Evil'' one of the audio logs is spoke by Scott Menville, who did the voice of Robin in the ''TeenTitans'' cartoon. Hearing the voice of ''Robin'' speaking in utter terror about demons is pretty funny.
** Sgt. Kelly is Lt. Kellaway from The Mask(animated version)

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