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The Console Doom timeline (aka the Midway/Williams timeline, SNES Doom timeline or the Doom 64 timeline) is the structured events of the console release of Doom games (from the SNES port or ports of the games based on the Jaguar Doom port (Jaguar/32x/3DO/GBA (Doom 1 ports), Playstation/Saturn (reimagined mix of Doom and Doom II), and GBA Doom II)), Final Doom PSX, to the original sequel 1997 Doom 64 (built off the Playstation Doom/Final Doom engine), to 2020's Lost Levels. The timeline is based on the manual from the SNES Doom (and a variation in the Doom PSX manual).

Background

This timeline is notable as it only appears in the Midway/Williams based games which include SNES Doom, PSX Doom (Saturn Doom), PSX Final Doom, and Doom 64. The latter three make up a trilogy of sorts, which were designed by the same developers, using enhanced Doom engine, share the Aubrey Hodges soundtrack & sound effects, new levels*, new animated skymaps (lower parts of hell include animated orange, or green flamed areas in all three games), new enemies, new endings, and fully realized in Doom 64 with new textures, monster designs and story. This series create a self-contained trilogy of its own.[1]

While Doom (2016)/Doom Eternal is technically inspired by and a continuation of Doom 64, the reboot series does not necessarily follow exact same timeline, as the original Midway console series (both the SNES or later the PSX/Doom 64 trilogy). It's inspired by generally all versions of Doom including original PC version (references to Daisy, the character does not appear in the Midway games, and thus is never a motivation for the character, during those versions of the story), and even elements of the Doom comic are adapted into new series. The new games are included in this page, strictly because of its connection to the Lost Levels of Doom 64. However, other than that the details on the page are mostly influenced by the versions of the stories from the console games.

  • Doom SNES while heavily influenced by the original version of Doom (not Ultimate Doom), has its own modified story line, expanded manual backstory, and modified (censored) ending (no Daisy mentioned or seen). While closer to the original three episodes, some levels are missing (but it does have all the bosses).
  • Doom PSX is split into two campaigns: Ultimate Doom and Doom II. It offers modified version of Ultimate Doom levels, with occasional new areas, or side rooms (many found in Jaguar Doom). The areas based on areas from Ultimate Doom have Doom II enemies added to them. As well as Double Barrel Shotgun appearing as early as in Doom levels via a new secret level. There are new secret levels, new final 'boss level' and new ending for each campaign. In addition the new 'trilogy' adds new enemies such as the Nightmare Imps and Nightmare Specters. PSX Doom's manual is based on the SNES Doom manual Doomnl. It technically exists on a separate timeline than that of the SNES version as it has its own 'ending'/'interlude' between its events of Doom 1 and Doom II (no spider master mind level, instead the "Guardian" Cyberdemon from the Jaguar/3Dx/GBA versions of the game).
  • Final Doom PSX also offers reduced list of levels, and modified secrets from the original PC version. There is less focus on the story (the campaign backgrounds are not mentioned in the manual), and only few original ending messages.
  • Doom Jaguar/3D0/32x/GBA are the source of many of the level design (and original levels) used in Doom PSX/Saturn, however only having enemies from classic Doom (not Doom II), and no other original enemies, and several cut enemies as well. Jaguar/3D0/32x has its own own new ending text, and GBA Doom has only one cutscene based on original Doom ending (with some modifications to the original text).
  • Doom II GBA is generally faithful port of PC Doom II with some changes to level design in order to function on new engine and within restraints of GBA hardware. Most, if not all the interludes and ending are included. Wolfenstein enemies are included however Hitler paintings are replaced with images of Wilhelm Strasse. All enemies exist, and does most content from pc games (blur artifact/light amplification goggles).
  • Newest console versions use original PC versions of the levels from Ultimate Doom, Doom II, No Rest for the Living and Final Doom. Though the latter two (with Final Doom split into two separate campaigns) are left as optional add-ons. Some minor censorship (but not to the extent of the BFG Edition version), with red cross replacing with green cross on health packs (replacing the pills from BFG Edition versions).
  • In some interpretations Doom 64 is the third in the Midway Doom trilogy (PSX Doom, PSX Final Doom, and Doom 64 all sharing similar engine and soundtrack). In another interpretation it is a direct sequel to the original Doom (replacing Doom II and Final Doom). Hence the reference to "Doom Episodes" is a reference to the classic Doom's three episodes or also 4th episode in Ultimate Doom, and direct references to Phobos base on Doom 64 website, and in the partial novelization in Nintendo Power (see Doom 64: The Story So Far). Newer releases suggest its a follow up to Doom II.[2]"
  • The Doom 64 strategy guides acknowledge Doom PSX/Final Doom PSX (but speak of the PC Doom I-II-Final Doom, as being somewhat different series). One of the two guides treats PC Final Doom and Doom 64 two 'separate' endings to the franchise (while acknowledging that Doom 64 was original game made outside of Id Software's influence). "DOOM II was kept alive by Master Levels, which featured 20 missions assembled by independent designers, and included Maximum DOOM, a vast collection of 3,000 levels created by fans of the game. The hastily-named Ultimate DOOM consisted of a new adventure, Thy Flesh Consumed, and the original PC DOOM, the first time it had been available in stores. Final DOOM really was the last of the series--by id Software at least, who gave Midway Entertainment, Inc, the green light to convert a restyled version to the Nintendo 64. Basically a rewrite of DOOM II, Final DOOM spread 64 levels across two episodes, full of tense shoot-outs and taxing puzzles fans have come to know and love...And now there's DOOM 64, coded by Midway programming team in San Diego, it's the first all-new version of DOOM in four years. Anticipation for this "dream-match" of the ultimate shooting game on the most powerful console was such that the official "Doomsday" of April 4, 1997, was flouted by many retailers in North America, who put the cartridges on the shelves as soon as they could get them."

DoomMNLIndex.jpg

Noteably, original Doom (and the early sequels) does not have clear dates for when events take place. Only in SNES Doom (and the novels), is it implied to take place during early 21st century in a neo-1990s retro-futuristic setting, and there are only a few references to amount of time between games. Only the SNES manual gives any 'clear dates' for the events leading up to the events of the original Doom (while novels makes it less clear, and deviates from the games' plots). Otherwise there really isn't much of a timeline to actually list.

Tom Hall has indicated that the protagonist of Doom (the original Doom/Ultimate Doom which he worked on) is the descendant of the main characters from Wolfenstein and Commander Keen series. He is grandson of Commander Keen (which was part of the early concepts of the ID multiverse).[3][4] Tom Hall's comments that he is the grandson of Commander Keen, this supports the theory that the timeline of the SNES manual is accurate. Since Keen grew up in the late 1980s-early 90s and likely would have had a son in the late 20th century to early 21st century (and grandson would have been born in 21st century). The Doom RPG series also took this route with the characters B.J. Blazkowicz and Stan Blazkowicz (though clearly from a later century). The novels which lie outside of the game canon (or canons) also places the general events in the early to mid 21st century, see Doom novels timeline.

Tom Hall has also noted that Doomguy might not necessarily be the grandson of Commander Keen, but some future decendent 'way later', many generations down the timeline (to avoid any specific dating of when Doom took place). This could support the 22nd century references too (Doom 3/Doom RPG series).

Originally, I had (if I recall correctly):
1940s B.J. > 1960s Arthur (newscaster) > 1980s Billy > . > . > . way later .... > DOOM guy (although this was very patriarchal for these three.) I had it that being a hero skips every other generation.[5]
...but for the old games: Wolf3D, Spear, Keen1-3, Keen Dreams, Keen 4-6...(many generations)... DOOM 1&2.

Certain aspects about classic Doom games and their manuals are confusing and don't always seem to line up. This has opened up theories that there are events not covered in the game's or even multiple Doom Marines involved. For example Doom's original ending and Ultimate Doom's ending are different than the prologue to Doom 2 with the heroes reaching Earth by different means. Doom 2 also talks about Mars Base being invaded as well from the Outside, and the invasion stopped by the marine who lands on earth via drop ship discovering that Earth has been invaded. Some fans think this might even be the events shown in Doom 3.

Several of the later manuals and websites claim it's the same hero in all the games confusing matters further.

PSX/Saturn Doom places Doom II events directly after events of Doom/Ultimate Doom (only a couple of modified levels from Ultimate Doom are included, without any story context), and with a new original interlude description between Ultimate Doom and Doom II levels. Note: Technically no exact date is given for Doom II, but its assumed by the fans to take place directly after Doom/Ultimate Doom at least chronologically (it technically would depend on how long it takes to get from Mars to Earth in a drop pod).

The exact order of campaigns in Final Doom PSX is not clear either, but the scenarios are listed in the order of Master Levels, TNT:Evilution and finally The Plutonia Experiment.

The original PC versions of Ultimate Doom, Doom II (No Rest for the Living, Master Levels), and Final Doom are are unrelated to this timeline, follow separate timeline, and endings (with the only similarity being Doom 1 on SNES port being closer to and having similar ending to that of the original Doom (without Ultimate Doom's retcons, and GBA Doom 2 being closer to events of Doom 2 with much of the same interludes). There are no references to Daisy in the console endings (other than GBA Doom showing a picture of Doom guy holding her decapitated head), and its only related to PC games. However, Doom reboot does mix some details from the classic Doom and Doom 64 together (including references to Daisy from original PC Doom games).

Note later Bethesda console ports of the series are direct ports of the PC versions (with each game (Doom 1, Doom 2, and Doom 3, linking to Doom Eternal, and giving a special costume for each in the latter game). Final Doom's two campaigns are only avaiable as seperate individual downloadable 'add-ons' included for both Doom and Doom II releases, while No Rest for the Living is a seperate add-on for the Doom 2 release.


Console Doom Games

(Includes Doom SNES, Doom PSX (Saturn), Doom Jaguar, Doom 32x, Doom 3DO, Doom GBA, Doom II GBA, Final Doom PSX and Doom 64 (The Lost Levels)

  • 2018 - The military, UAC's biggest supplier, has used the remote facilities on Phobos and Deimos to conduct various secret projects, including research on inter-dimensional space travel.[6]
  • 2019 - The Marine assaults a superior officer, and is transferred to Mars, home of the Union Aerospace Corporation.
  • 2021 - July 1 - DOOMNL 01-D19305-1C is published.[7]
  • 2022[7]
  • Doom SNES/PSX/Saturn begins...
    • March 15 - Mars receives a message from Phobos base stating that the base is under attack and requesting backup.[7]
    • A few hours later, the marines land and try to stop the invasion. The Marine is ordered to stay behind and protect the perimeter. The marine forces are wiped out or turned into monsters. Planetary authorities send the final Marine the new DOOMNL 01-D19505-1D replacing earlier manual (now including briefing for the Marine, and images from the invasion captured by remote video cameras. The video data was computer analyzed by the UAC and the results are provided "here and only here")[8]. The Marine leaves the escape pod vowing to take down as much of the invasion force as possible before death.
    • Knee Deep In the Dead begins as the Marine arrives in the Hangar Atrium.
    • Knee Deep in the Dead ends as the Doom marine is ambushed by the forces of hell upon arriving on Deimos, and presumably dies.
    • Shores of Hell begins as the Doom Marine finds himself alive somehow, and pushes against the forces of Hell.
    • Shores of Hell ends as the Doom Marine rappels down the surface of Deimos, discovering that it is now orbiting above Hell itself.
    • Inferno begins as the Doom Marine arrives on the surface of Hell.
    • Inferno ends with the Doom Marine killing the Spider Mastermind, the general of the Phobos and Deimos invasions, and returning to Earth:


  • Doom SNES ends.
    • The loathsome spiderdemon that masterminded the invasion of the moon bases and caused so much death has been beaten for all time. A hidden doorway opens and you enter. You've proven far too tough for Hell to contain, and now Hell at last plays fair -- for you emerge from the door to see the green fields of Earth! Home at last. I wonder what's been happening on Earth while you battled the evil unleashed. It's a good thing that no Hell-spawn could have come through that door with you ...
  • Doom GBA ends.
    • The loathsome demons[9] that masterminded the invasion of the moon bases and caused so much death have had their asses soundly kicked for all time. A hidden doorway opens and you enter. You've proven far too tough for Hell to contain, and now Hell at last plays fair -- for you emerge from the door to see the green fields of Earth! Home at last. I wonder what's been happening on Earth while you battled the evil unleashed. It's a good thing that no Hell-spawn could have come through that door with you ... Doomguy discovers that his rabbit Daisy is dead.
  • Doom Jaguar/32x/3DO ends
    • The horrors of Hell could not kill you. Their most cunning traps were were no match for you. You have proven yourself the best of all! Congratulations!
  • Doom PSX/Saturn ends
    • The Hero's victory enabled humankind to evacuate Earth and escape the nightmare. But then Earth Control pinpoints the source of the alien invasion. The marine is their only hope. He painfully gets up and returns to the fray."[10]
  • Doom II PSX/Saturn/GBA begins
  • Doom II GBA Ends
  • Doom II PSX/Saturn Ends
    • The Marine had done it; by turning the evil of the horrors of Hell in upon itself he had destroyed the power of the demons. Their dreadful invasion had been stopped cold. Now he could retire to a lifetime of frivolity (or so he thought). Congratulations were given to him.
  • The Union Aerospace Corporation is entirely reformed, as the original stockholders, trustees and management were killed in the invasion of Earth, and begin managing two projects; one in an unknown jungle, and the other on one of the moons of Jupiter.
  • 2023
    • Yearly supply ship reaches Jupiter's moon. Demons use it to invade the UAC base there.
    • TNT Evilution/PSX begins with the Doom Marine, the last surviving marine on the Jupiter moon base, once again fighting against the forces of Hell.
    • TNT Evilution ends with the Doom Marine destroying the Demon-spitter
    • The Quantum Accelerators succeed in their maiden test, however fail in their second activation leaving one Gate left open for the forces of Hell to enter.
    • The Plutonia Experiment/PSX begins as the Doom Marine fights against the forces of Hell again after arriving via pickup truck.
    • The Plutonia Experiment ends with the Doom Marine destroying the Gatekeeper, swallowing up the final demons and the accelerator.
    • Master Levels' of Final Doom PSX...
  • Final Doom PSX Ends
    • The Marine gloats over the carcass of the Guardian. With its death he wrested the accelerate from the stinking claws of Hell. He is finally done. Hell has returned to pounding dead folks instead of good live ones. He must remember to tell his grandkids to put a rocket launcher in his coffin. If he goes to Hell when he dies he will need it for some cleaning up.
    • The fatigued Doom Marine could completely retires finally, he was decommissioned, and the military DOOM Episodes were classified. The UAC's bases were sealed, and quarantined by radioactive bombardment.
  • Years Later[11]
    • Mother Demon survived in radiation of bombarded planetary space installation. Shielded in the radiation it resurrected the demons mutates them into stronger and more vicious forms.
    • A long forgotten relay satellite barely executing, decayed by years of bombarding neutrons, activates and sends its final message to Earth. The satellites message was horrific, from the planetary void there came energy signatures unlike anything sampled before.
    • The classified archives are opened. The military episodes code named "DOOM" were not actually completed.
    • Doom 64 begins. The Doom Marine, the only experienced survivor of the DOOM episode is re-commissioned to stop, the latest invasion, he stops the Motherdemon's forces which had been building in the former battlegrounds he failed to clear.
    • Doom 64 ends. The Doom Marine decides to stay in Hell to prevent the rise of another demon lord after destroying the Motherdemon.
    • The Lost Levels begins. A new chapter in the Doomguy's saga, taking place shortly after [Doom 64's] original campaign concludes. The Mother Demon the marine defeated, had a sister, and Doomguy has been messing up Hell non-stop, she tried to get rid of him by sending him away back to a base on Earth.[12] He makes it back to the sister in Hell and take's revenge.
    • The Lost Levels ends. The Marine had not expected to be torn from Hell so soon after his fateful decision. Getting back there was his only concern. The plans of the sister Resurrector to exterminate him had failed. A grim vision took hold of his mind as the demon carcasses steam in his wake. Stretched before him is was a path of perpetual torment... A path through DOOM...

Doom Reboot series

(future and/or parallel universe, Doom 64 leads into the 2016 reboot series per the Lost Levels ending...))

  • 2149
    • Doom VR
    • October
    • Doom (2016) Begins
  • 2163
    • Doom Eternal

Notes

DoomManualPG23.png

  • While SNES Doom and PSX Doom clearly diverge in story in places (particularly the ending and story interlude descriptions), they share similar manual details connecting them. Still there is enough of a difference that technically Midway trilogy being slightly separate universe to that of the SNES doom, which in itself is separate/different ending to the original PC games story directions (which itself differed between classic Doom and Ultimate Doom).
  • According to the SNES and PSX (tall) manual; "When the Creatures first appeared in at the Gateways, their images were captured by remote video cameras. The video Data was computer analyzed by the UAC and the results are provided here, AND ONLY HERE, to help you determine what you're up against. Some call them Demons, some Call them Monsters. Whatever they are, they're not of this world and they're waiting for you."[13]
  • Further more each of the enemy recognition screen data listings includes "Time" when they were first appeared in the cameras.
Former Soldiers were first appeared at 17:48. Former Sergeants first appeared at 03:21, Imps appeared at 11:34, first images of Demons was at 20:17, Lost Souls at 02:47, Cacodemons at 09:35, Barons of Hell at 22:59, Cyberdemon at 13:26, Spider Demon at 11:11. The times are there for flavor and show that they they all appeared on the same date, though the times are not particularly useful information beyond that.
PSX Doom adds these times for the new enemies (as they can show up on Phobos, Deimos levels, etc as well):  Knights of Hell at 04:16, Arachnotron at 16:08, Chain Gunner at 23:52, Revenant at 01:42, Mancubus at 08;55, Nightmare spectres at 21:04, and Pain Elementals at 06:22.
  • SNES Doom is the "DOOMNL 01-D19505-1D" which replaced the "DOOMNL 01-D119305-1C".
  • PSX manual is the "DOOMNL 02-D9560524-1D" apparently published later.
  • Another minor change which might change certain contexts is that the SNES and PSX manual changes the description related to artifacts from 'the other dimension' to 'the other dimensions' plural for whatever reason, perhaps suggesting that Hell takes place in multiple dimensions or that UAC has accessed multiple dimensions (in Doom (2016) the possibilities of multiple dimensions is discussed see Worlds and Time).
  • The details related to the Add-ons version of Evilution states that it takes place directly after Doom II. This implies that Plutonia takes place after Evilution. This is also the order of the games in the manual of the original release of Final Doom, which also talks about events of Doom II, having taken place before Evilution.
  • According to the Doom 64 manual it mentions "planetary" twice and both "space installation" (space installations) when discussing previous events. Some believe this may be a reference to the Mars Base invasion on Mars rather than Phobos/Deimos invasions which occurred on the moons (rather than planets). However, at least three source references state that the game starts out on Phobos.
  • Technically no date for Doom II's events are ever given in any source (other than mid-21st century in the novels). The novel is a very loose adaptation practically a different/original story even, lacking most of locations and events from Doom II. Though characters do reach earth from Deimos using a shuttle, which might be loosely inspired by the drop pod account in Doom II manual.
  • In Doom RPG Deimos may be missing (at least only its orbit can be seen), which appears to be a nod to Doom/Ultimate Doom (and a hint that at least in the ID multiverse it takes place after Doom, and is in the same timeline as hinted on the website). Though it takes place in the 22nd century.
  • The official doom strategy guide mentions 2500 B.C. as the date of Sun Tzu.
  • The official Doom II strategy guide ignores much of the first part of the intro to Doom II manual, instead retelling the events at the end of original Doom (but minus the events of Thy Flesh Consumed): "At the end of DOOM, Our Hero, having returned to Earth, is left staring at a flaming city, evidence that the demon aggressors have arrived ahead of him.[14]
  • Doom 64 apparently takes place after "Doom II" (and thus may make the events of Final Doom take place with different character, or characters "Marine Commander"). According to Doom 64 (2020): "Welcome, to DOOM 64! The cult classic returns, 22 years after its 64-bit debut. In this follow up to DOOM II, you'll fight through denomic hordes, hunt down the Mother of Demons, and stop Hell's invasion as you battle more than 30 action-packed levels!"
  • Final Doom is listed as part of the series in Prima's Official Doom 64 strategy guide's "History of Doom".
  • Synopses for Final Doom, would imply that it starts the same marine from Doom II (and possibly Doom I), though how it relates to Doom 64 is unclear (since both seem to claim to be set after Doom II, and the final story). "This is it. The end. The end of the undead marines, the acid-drenched hallways and the hell-spawned hordes. The final chapter in the legendary Doom series. This is Final Doom. It's two new 32-level episodes complete with new stories (The Plutonia Experiment & Evilution), new frightening realistic graphics and new pulse-pounding music. It's time to finish what you started. Final Doom. End of story. "
  • The new Lost Levels of Doom 64  link up between events of Doom 64 and Doom 2016/Doom Eternal[15] "If you can make your way back and take revenge, you’ll be rewarded with a bit of lore that fans of both series, new and classic, should enjoy."
  • Sigil is John Romero's 'fifth episode' (mod) to the Original Doom. However, its not considered official to the original canon (as it does not appear to be endorsed, published or owned by Bethesda). It also takes some liberties with the storylines presented in previous 4th episode (Thy Flesh Consumed) and official Doom Strategy Guide. Noteably, whereas Episode 4 was supposed to have taken place in a city on earth during initial invasion, Sigil posits that it was actually some kind of limbo or purgatory before reaching earth. That after defeating the mastermind in Episode 4, the Marine attempted to catch a portal to earth, but is sent into a deeper section of Hell, one ruled by Satan, and had to fight his way out to find another way back to Earth. Bethedsa has since released it as an 'unofficial sequel' add-on (one of the so-called 'official add-ons') along with other fan developed level add-ons and called it 'revisionist history'. Note that "official" in this context refers to provision of the content by id Software. There has been no statement indicating that the modifications created by the community should be considered canonical story-wise.
  • Doom RPG and Doom 3 BFG Edition may have retconned the original doom series into the 22nd century, the exact order is not clear (but presumed that background story for Doom II, is the same story as Doom 3). see Doom Retcon Timeline, and ID multiverse timeline (Doom 3 as prequel).
  • Doom 2016/Doom Eternal are tied to classic universe, although its not clear if it is based on SNES timeline, or the Doom RPG's retconned timeline (see Doom Retcon Timeline & Doom RPG Timeline). In addition its not clear if its a 'parallel. universe' or 'same universe' It's most likely a seperate universe to Doom 3 as both take place roughly around the same time frame (Doom 3 has a more industrial/military setting run by mostly agnostic/athiest scientists, while Doom 2016 establishes UAC as a much of religious/cultists/satanist/fanaticals who know very well what they were accessing, and even worship the demons, hoping ot gain more power from them). But depending on which timeline it took inspiration from, events of Classic Doom might exist within the same universe as Doom 2016 but occured a century appart from each other. One indication of might come from the date 2049 (a century before Doom 2016) which discusses Mars colonization beginning (granted even this is at least 20 years later than the date given in SNES Doom).
  • Doom PSX is split into two campaigns (Ultimate Doom), and (Doom II). Ultimate Doom is one campaign (not episodes). Ultimate Doom campaign includes these additional locations (while offering a remixed experience with elements of Doom II (enemies and weapons), and slightly modified storyline:
  • Final Doom PSX includes three modified campaigns TNT:Evolution (11 levels), The Plutonia Experiment (6 levels), and Master Levels (13 levels).
  • Doom Eternal implies that Doom II takes place in 1994 (the year of the game's release), IE, "Class of '94" title for the Doom Slayer.
  • According to John Romero, he places events of  the end of Doom: Inferno in May 29, 2020 (two years before the Midway/SNES timeline), see Sigil timeline.
  • The idea of Doom Guy's retirement after events of Doom II is referenced in the introduction story of Doom 64, see Doom 64: The Story So Far. Doom 64 was a follow-up to PSX Doom and PSX Final Doom by Midway's team, and would likely have been referencing their previous productions.
  • Gameboy Advance would get its own Doom I and Doom II ports as well. However, Doom 1 version lacks any episode ending text, and only final ending text (displayed over the image of Doomguy's return to earth from the PC version's Ultimate Doom, including the dead Daisy rabbit). The levels appear to be based loosely on the Jaguar/PSX/Saturn doom level versions (for example the ramp leading to end of Phobos Anomaly being moved to outer wall into its own room instead of a platform in the middle of the exposed court yard).
  • For a more complete listing of the timeline from iD multiverse perspective see ID multiverse timeline (Doom 3 as sequel).[16]

An alternate version of the Doom timeline based on the Doom Novel's settings for the event might place Doom 1 as early as c. 2011-2012 about a decade earlier.

References

  1. https://www.shacknews.com/article/117322/terraform-the-making-of-doom-64
  2. "Welcome to DOOM 64! The cult classic returns, 22 years after its 64-bit debut. In this follow up to DOOM II, you'll fight through demonic hordes, hunt down the Mother of Demons, and stop Hell's Invasion as you battle through more than 30 action-packed levels!-Introduction from Doom 64 (2020) version
  3. https://arstechnica.com/gaming/2018/01/id-software-co-founders-confirm-that-its-biggest-games-heroes-are-all-related/
  4. https://twitter.com/ThatTomHall/status/958352500431572992
  5. https://twitter.com/ThatTomHall/status/1260280081382948864
  6. Doom Manual: For the last four years the military, UAC's biggest supplier, has used the remote facilities on Phobos and Deimos to conduct various secret projects, including research on inter-dimensional space travel.
  7. 7.0 7.1 7.2 Midway Doom SNES manual, cover
  8. Doom SNES Manual, pg 23
  9. this appears to be a reference to the game's bosses
  10. Doom PSX interlude text
  11. Doom 64 manual
  12. https://www.usgamer.net/articles/exclusive-doom-64-devs-reveal-the-port-will-include-a-brand-new-chapter?fbclid=IwAR3e8G_W3ZvF1AQMmWoxHT5QyU2netAMqbIAz2ygilOXwzJeGZv_5Dy3W8w
  13. SNES Manual, pg 23
  14. Doom II: The Official Strategy Guide, pg XI
  15. https://www.usgamer.net/articles/exclusive-doom-64-devs-reveal-the-port-will-include-a-brand-new-chapter?fbclid=IwAR3e8G_W3ZvF1AQMmWoxHT5QyU2netAMqbIAz2ygilOXwzJeGZv_5Dy3W8w
  16. Step into the boots of DOOM Marine and experience his adventures for the first time, or all over again. Featuring enhanced versions of DOOM 3, DOOM 3: Resurrection of Evil and the all new DOOM 3: The Lost Mission, plus the classics DOOM and DOOM II, DOOM 3 BFG Edition is the consummate DOOM experience.
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