History FateGrandOrder / TropesDToI

** The Earth has been incinerated, forcing dozens of Servants who normally wouldn't be cooperative like Caligula and Gorgon to work together for the sake of preserving the Earth and Chaldea accepts literally any Servant into their ranks for the sake of bolstering their numbers and gaining another ally to help them fight the BigBad.

* FixFic: The Fate/Accel Zero Order event is an official one from the original author of ''Fate/Zero'', as the adult Waver Velvet joins the protagonists on a singularity of the ''Zero'' war and tries to make things end better than they did the first time around. Unfortunately, since it's a singularity none of the changes sticks and history remains the way ''Zero'' depicted it, but Waver rests easy knowing that at least in one what-if version of events things worked out for the better. See ForWantOfANail below for details.

* ForWantOfANail:
** Pretty much ''the entire game'' is a result of this; part of the Grand Order was [[spoiler:basically a cover for Goetia's Demon Pillars to survive into the present day in the form of 72 Magic Crests. One of those Crests happens to belong to Lev, who in most timelines figures this out in time to [[HeroicSuicide kill himself,]] thus depriving Goetia the opportunity to enact his plan. This doesn't happen in ''F/GO,'' of course.]]
** "Fate/Accel Zero Order" diverges from ''Literature/FateZero'' because of Irisviel being Saber's Master instead of Kiritsugu, causing it to become a singularity detected by Chaldea and [[spoiler: the Counter Force being sent in to prevent the Einzberns from obtaining the Grail and releasing Aŋra Mainiiu]]. Chaldea's interference, using the knowledge from El-Melloi II, creates further divergences, including:
*** Altria and Diarmuid never fight each other since your party fights Altria first, forcing Irisviel to retreat from the area.
*** Kayneth helps the party after some persuasion from adult Waver and with further persuasion, eventually leaves Fuyuki with Sola-Ui to go back to the Clock Tower. He forces Diarmuid to stay behind so Sola-Ui doesn't try to do anything about her attraction to him.
*** Ryuunosuke and Gilles being the first ones to die after being taken out by [[spoiler: EMIYA (Assassin)]] and your party. Gilles doesn't get a chance to summon the giant monster and so most of the fights caused by that don't happen.
*** The protagonists persuade Kariya to help defeat Gilgamesh during the King's Banquet and he subsequently loses to Lancelot, Diarmuid, and the protagonist's team.
*** Since Gilgamesh is dead, he doesn't get to corrupt Kirei. Tokiomi forces Kirei to give control over Assassin to him, removing Kirei from the conflict. Assassin dies soon after, forcing Tokiomi into defeat.
*** After Iskandar hears Kariya's story and motivations, he decides that Kariya's desire to kill Tokiomi is pointless since Sakura will still be part of the Matous and storms the mansion. He frees her in exchange for Kariya giving up his right arm and kills most of the worms. After that, he sends the two to a hospital to recover.
*** [[spoiler: Because Irisviel had the same modifications as Illya and thus became Saber's master, the Einzberns would have won. Kiritsugu, who never found companionship in any form, was then picked by the Counter Force to eliminate her to stop this. This is the one factor that surprises El-Melloi II since everything else had been going the same before Chaldea came.]]
*** [[spoiler: Irisviel, being the source of the singularity, comes with Chaldea since she's got nowhere to go now that she knows the Einzbern ritual is busted and recovering Grails is what they do.]]
** The majority of the sixth singularity happened because [[spoiler: Bedivere ''did not'' throw Excalibur back into the lake.]]
** Each Lostbelt is a major divergence from the main timeline, with some catastrophic event occurring at the date given and [[spoiler:showing the possibility of what the world would be like at the present-day. These timelines were considered unable to progress and were banished to non-existence by the World.]] [[spoiler:Or at least, that's how it seems. There's evidence to suggest that these worlds aren't resurrected, but in fact ''created'' by the Trees of Emptiness.]]
*** Anastasia takes place in [[spoiler:a Russia where a meteor crashed in 1570, causing a permanent Ice Age. The only reason there are still people left is that Ivan the Terrible and his magi used their last resort, fusing everyone with magical beasts to survive.]]
*** Götterdämmerung's Lostbelt diverged from around 1000 BC [[spoiler: during Ragnarok when Surtr decided to devour Fenrir after the wolf ate the sun and became powerful enough to kill most of Norse Gods and possibly burn down the entire world instead of just Scandinavia, but the absence of Fenrir left Odin surviving who then sacrificed his life to seal Surtr into a new sun. This caused the Ragnarok to be incomplete and leaving the world in a half-dead state still burning from Surtr's flames and only survivable thanks to Scathach-Skadi using her powers over ice and snow to push back against them and creating survivable areas only sufficient to support 10,000 humans on top of needing to cull the population regularly by feeding them to the surviving Jotunn at certain ages, preventing the advancement of mankind in this timeline.]]
*** SIN diverges from 210 BC when [[spoiler:the First Emperor of China, Qin Shi Huangdi, succeeds in his quest for immortality after finding ancient Chinese sage arts/super technology to enhance himself, specifically the body of Nezha. He subsequently establishes an iron grip on China and conquers the entire world, creating a peaceful empire under his reign. The people are content as they have self-growing crops and medicine that cures all ailments. However, the empire is stuck in MedievalStasis with technology limited to the capital for the emperor's use, illiteracy as the status quo, and people living very brief lives. It's also noted the ''Counter Force doesn't exist'' in this timeline because there is no danger that humanity needs to protect themselves from.]]
*** Yuga Kshetra diverges from the end of Dwapara Yuga[[note]]The exact diversion point in [=BC/AD=] years is unknown due to the nature of Yugas.[[/note]] In the ''Mahabharata'' where [[spoiler: Arjuna was broken by the horror he saw in the world and allowed Krishna, Arjuna's "dark self" (mentioned in his Interlude), to take over, strike down Karna, and then assimilated with the Hindu gods, starting with Krishna. Arjuna ascends to become the single TopGod of India who accelerates the Yuga cycle to the point that each Yuga takes only a few days, and delivers absolute judgement against his perceived evil from humanity, rendering mankind in a constant struggle to survive each cycle.]]
*** The official story for Atlantis and Olympus is that it diverged in 12000 BC when [[spoiler: the Greek Olympian gods defeated Sefar and survived, so they had time and resources to continue building Olympus. A civil war erupted in the pantheon when Zeus chose to further the reign of the gods. Hephaestus, Hades, Athena, Apollo, Hestia, and Ares were all killed in the war, while Zeus, Artemis, Poseidon, Demeter, Aphrodite, and Hera survived. The winning side took over and continued to rule the world, changing the very concept of gods themselves, eventually creating the nanomachines 4000 years later that functions similar to Authorities.]] [[spoiler:In truth, Zeus forcibly combined with the Olympians during the fight against Sefar against the Pantheon's protests, which gave him such a power boost that when the Gods were told of the nature of their world is a Lostbelt later on, ''every other God'' rebelled against him, which he defeated. The survivors were reprogramed and their utopian world continued as stated above, but the creator of the Gods, Chaos, gives Zeus a direct order to convert all life-energy into Olympus and have it leave the Earth.]]
*** Heian-kyō has Caster of Limbo assimilate with his living self Ashiya Douman back in Heian era Japan, convincing the emperor's right hand to host his own version of the Holy Grail War, and turns the world to hell, filled with monsters, spirits, and corrupted heroes hunting down other Heroic Spirits. [[spoiler:This is to fuel his own Tree of Emptiness, Hell Realm Mandala, and turn the Singularity into a Lostbelt to use the power to challenge and defeat his hated rival Abe-no-Seimei.]]
*** Avalon le Fae diverges when [[spoiler:the six fairies meant to forge Excalibur so that Sefar can be defeated [[SincerityMode decided to slack off instead]], Sefar rampaged unimpeded and fully scoured the earth. The whole reason anything exists at all is because Cernunnos took pity on the six instead of punishing them for their dereliction of duty, providing them with a safe haven. [[UngratefulBastard They repaid him by poisoning him and tearing apart his priestess to get extra land and make a new humanity to use as a food supply.]]]]
*** Nahui Mictlān diverges [[spoiler:when Malla (a.k.a. a space moss-bearing meteorite who ended creating Aztec mythology in Proper Human History) arrives at Earth before ORT could destroy the dinosaurs. Because of that, the dinosaurs evolve to Deinos and Malla changes its name to Maia. Maia would then foresee ORT's descent, and sent the Deimos underground into safety so that they could survive ORT's attack.]]

** HistoricalGenderFlip Servants are always "male-to-female" rather than the reverse. Pseudo-servants that are male Heroic Spirits inhabiting the bodies of female hosts will also always be considered female.

** Pretty much ''the entire game'' is a result of this; part of the Grand Order was [[spoilerbasically a cover for Goetia's Demon Pillars to survive into the present day in the form of 72 Magic Crests. One of those Crests happens to belong to Lev, who in most timelines figures this out in time to [[HeroicSuicide kill himself,]] thus depriving Goetia the opportunity to enact his plan. This doesn't happen in ''F/GO,'' of course.]]

* EleventhHourSuperpower: [[spoiler: In the final chapter of Babylonia, Ereshkigal provides a massive buff to the party, and Merlin uses his FertileFeet to help keep the heroes above Tiamat's Chaos Tide, which is represented as being healed as much as the Chaos Tide can do damage.]]

* EndlessWinter: The first 2 story chapters in ''Cosmos in the Lostbelt'' features an Endless Winter each, although the circumstances and response to each were markedly different.

* EnemyCivilWar: In ''Cosmos in the Lostbelt'', [[spoiler:due to the Foreign God's [[DragonWithAnAgenda emissaries]], Crypters, and Lostbelt rulers all having their own separate goal, at least two of the three being unable to work together in some way happens without fail in ''every'' Lostbelt.]]

** A consistent point reiterated by people who are in the know about the MythArc of ''Cosmos in the Lostbelt'' is that oblivion is ''far more'' preferable than whatever the BigBad has been planning this whole time with the bleached Earth. The Chaldean lets the events of Lostbelt 6 play out simply for that reason and [[spoiler:Daybit spends the entirety of Lostbelt 7 attempting to wake up ORT so it can take out the planet.]]

** [[spoiler:Pretty much ''the entire game'' is a result of this; part of the Grand Order was basically a cover for Goetia's Demon Pillars to survive into the present day in the form of 72 Magic Crests. One of those Crests happens to belong to Lev, who in most timelines figures this out in time to [[HeroicSuicide kill himself,]] thus depriving Goetia the opportunity to enact his plan. This doesn't happen in ''F/GO,'' of course.]]

** [[spoiler:In Babylonia, Tiamat starts producing more Lahmus by processing humans into her system.]]

** Typically, the way banners for main story chapters work by having the first banner star an allied servant or at least one who's introduced early in the storyline while the latter banners would hold the more plot significant or hidden characters. [[spoiler: The fact that [[ArcVillian Morgan]] was on the first banner of the Lostbelt 6 banners was one of the biggest indicators of her status as the DiscOneFinalBoss of Avalon Le Fey.]]

* DaylightHorror: [[spoiler:The state of present-day Earth in ''Cosmos in the Lostbelt'' is a vast, white expanse as far as the eye can see shown solely during daylight to highlight how there is ''literally nothing'' left of humanity or Earth. Even more disturbingly, the Earth's rotation no longer seems to matter as it's daylight ''everywhere'', even on the side that should be facing away from the sun.]]

** [[spoiler:Columbus still firmly believes in slavery as a system to be upheld and attempts during Agartha to enslave its peoples. He even points out this trope by arguing that it's only natural he would do so given he comes from a time where it was considered okay to do so.]]

** Within the bond system, how fast a servant can get to Bond 5 is very much dependent on a servant's personality. To keep things simple, genuinely nice servants that are easy to get along with have a quicker time getting into Bond 5. Meanwhile, servants with more difficult personalities to get along with, and/or have some trust issues will often take a bit longer to get to Bond 5 as usually, they'll need 50,000 Bond Points to get to Bond 5.

* ADarkerMe: During the Garden of Order event, many Servants are snatched from Chaldea into [[LightNovel/TheGardenOfSinners Araya's Ogawa Apartment.]] More than a HatePlague; the apartment amplifies the dark history of each Servant. Fortunately killing the Servant sends them back to Chaldea, restored.

** There's a hidden trait called "Saber-face", given to Altria and her many lookalikes. Certain AI-controlled servants will go out of their way to attack anyone with this trait. These include [[LightNovel/FateZero Lancelot, who's obsessed with Altria, Gilles de Rais, who's obsessed with Jeanne]], and Caligula, who's obsessed with Nero, who herself is a Saber-face.

** "Fate/Accel Zero Order" diverges from ''LightNovel/FateZero'' because of Irisviel being Saber's Master instead of Kiritsugu, causing it to become a singularity detected by Chaldea and [[spoiler: the Counter Force being sent in to prevent the Einzberns from obtaining the Grail and releasing Aŋra Mainiiu]]. Chaldea's interference, using the knowledge from El-Melloi II, creates further divergences, including:

* {{Interquel}}: The ''LightNovel/FateApocrypha'' collaboration event takes place after the final battle of that series but before the epilogue where [[spoiler:Sieg and Jeanne are reunited after Sieg spent [[IWillWaitForYou an untold number of years waiting.]]]]

** [[spoiler:Then there's the Foreign who served as the GreaterScopeVillain that Goetia and the Demon Pillars originally acted against before Chaldea's intervention, with Räum even attempted to summon an Outer God as desperate action to oppose the Foreign. Although how different the Foreign from the Outer Gods isn't clear yet.]]

* EnemyCivilWar: In ''Cosmos in the Lostbelt'', [[spoiler:due to the Foreign God's [[DragonWithAnAgender emissaries]], Crypters, and Lostbelt rulers all having their own separate goal, at least two of the three being unable to work together in some way happens without fail in ''every'' Lostbelt.]]
** In Russia, [[spoiler:Ivan the Terrible's refusal to accept the Foreign leads to Kadoc and Anastasia forcibly subduing him to pursue their own plans while Kotomine/Rasputin schemes to depose Ivan so he can crown Anastasia as Tsar.]]

** [[spoiler:Then there's the Alien God who served as the GreaterScopeVillain that Goetia and the Demon Pillars originally acted against before Chaldea's intervention, with Räum even attempted to summon an Outer God as desperate action to oppose the Alien God. Although how different the Alien God from the Outer Gods isn't clear yet.]]

* EnemyCivilWar: In ''Cosmos in the Lostbelt'', [[spoiler:due to the Alien God's [[DragonWithAnAgender emissaries]], Crypters, and Lostbelt rulers all having their own separate goal, at least two of the three being unable to work together in some way happens without fail in ''every'' Lostbelt.]]
** In Russia, [[spoiler:Ivan the Terrible's refusal to accept the Alien God leads to Kadoc and Anastasia forcibly subduing him to pursue their own plans while Kotomine/Rasputin schemes to depose Ivan so he can crown Anastasia as Tsar.]]

* EvilVersusOblivion: Chaldea can summon even the most villainous Heroic Spirits and get their help because the main villain of the game is threatening mankind's place in the space-time continuum, and Chaldea represents the last bastion of humanity against this villain. Even those who want to subjugate the world don't want to see someone else do something even worse to it, which is why they help the player.

** Servants with a CE that gives them a Guts buff and do not activate it before [[spoiler:ORT]]'s bar is broken during its raid sequence is broken in Lostbelt 7 who are then killed by the boss after the bar is broken and trigger the guts buff will break the game for not allowing the death sequence to play out.

* GameBreakingBug: Around mid-September 2022, there has been an increasing number of players who are ''unable to log in'' to the game, with the app crashing at the featured servant or the title screen. What's worse is that the known fixes has varying degrees of success among the players. Consider that events regularly log you out of the game to reconnect to the servers...

*** Nahui Mictlān diverges when Malla (a.k.a. a space moss-bearing meteorite who ended creating Aztec mythology in Proper Human History) arrives at Earth before ORT could destroy the dinosaurs. Because of that, the dinosaurs evolve to Deinos and Malla changes its name to Maia. Maia would then foresee ORT's descent, and sent the Deimos underground into safety so that they could survive ORT's attack.

** Final battle of Lostbelt 7 Part 1 against [[spoiler:ORT]] has a "Recommended level" of...[[ReadingsAreOffTheScale EX]]. The enemy's total HP is over 3.5 BILLION, spread over 11 break bars. And to make sure that no sufficiently patient stall team can beat it, it is both debuff immune and fully charges its Noble Phantasm (capable of removing all buffs from your party, reducing your NP gauge by 100% and adding an NP gain debuff of 200%) every turn. Inability to use your Command Spells during the Lostbelt also prevents any shenanigans like the ones used to defeat [[spoiler:Wodime]] in Atlantis.

* FakeDifficulty: The "Road to 7" Campaign introduced Super Recollection Quests, which has the players replaying certain boss fights, with one notable change is that enemies' [[MarathonBoss HP are bloated to extreme levels]]. While it does help encourage some patience rather than simply rushing to defeat the boss in a few turns, sometimes the Super Recollection Quests involve bosses that were ''not'' designed for turtling and forcing the player to rush before it they obliterate the entire party, and the bloating of that boss's HP can result in the player being forced to use 5* with max NP levels to even stand a chance against them, which players may not have due to the gacha system. Qin Shi Huang is especially notorious for this.

** Imaginary Number Space is referred to as "Void Space" from ''Cosmos in the Lostbelt'' on. This is an InconsistentDub, as it was called Imaginary Number Space in the Babylonia Singularity, and Craft Essences referencing it like "Imaginary Around" keep their names. It also causes a confusing example of NamesTheSame, as Void Shiki is completely unrelated to this concept but is still called "Void."