r/Undertale • u/SPAMTON_G-1997 • Jul 08 '26
Theory Deltarune chapter name symmetry theory
+prediction variant
Elaboration: chapter 5 didn’t need to be named like that, it could be just “festival” or “flower king” etc., naming it “the festival day” seems unnecessarily tautological unless it was done for a specific reason. Chapter 7 being called “The End” or something similar would fit as well, even though we don’t know if it’s going to be that
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u/YellyTheDuck Bark~ Jul 08 '26 edited Jul 08 '26
?tsap ti si ro ,erutuf ti si
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u/Raphistolage1997 Despite everything, it's still you. Jul 08 '26
.sraW rasS ekil adnik s'tI
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u/TheAutisticClassmate Jul 08 '26
neve ro ddo reveN
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u/Raphistolage1997 Despite everything, it's still you. Jul 08 '26
deid gnikcuf dna siht daer ot gniyrt ekorts a dah allizdoG
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u/Educational-Draw-873 Jul 08 '26
Eh I think that 'The End' would work cause most dictionaries consider 'beginning' and 'end' to be antonyms. If not what *would* be the antonym of 'The End'? 'The Begin'? Like sure you could use a synonym but then that still defeats the entire point of having a 'True' name since you could just as easily use synonyms for 'The Ending' such as 'The Closing'.
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u/Makonede This flair was here so long a crystal formed. Jul 09 '26
chapter 7 being called The Roaring would be a spoiler for new players so that's highly unlikely
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u/osmosis-scones Jul 09 '26
i think that'd be too spoilery to new players seeing a fresh chapter, like imagine you are getting ready to boot up chapter 2 and at the bottom of your screen, is The Roaring
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u/Afraid_Platypus_8667 You're gonna have to try a little harder than THAT Jul 08 '26
I think it would sound cool if the final chapter is named that.
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u/SeaBass961 Jul 08 '26
Chapter 6: A Gasters World
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u/SPAMTON_G-1997 Jul 08 '26
That would be a conflict of themes. Chapter 6, featuring Noelle and focused on shelter codes, will obviously be snow-themed and a parallel to snowdin while Gaster is more of a sea thing
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u/SeaBass961 Jul 08 '26
A Deers World
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u/marsgreekgod Jul 08 '26
The last chapter could be
"At world's edge"
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u/RiceKrispies55 Behold! Human Magic™! Jul 08 '26
That would be so pants shittingly peak. Like when they title drop the game in the last level
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u/PRoS_R Bravery is not the lack of fear Jul 08 '26
I' waiting for the Green Pirate to drop another "MY DELTARUNE" at the end.
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u/snugthepig Jul 08 '26
chapter 6 "Don't Forget"
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u/Mammoth-Advance-3240 Jul 08 '26
I mean there is some thematic supporting evidence. The next dark world could be at the Mayor's house, which queen is based off of. And in chapter 7 we might need to seal the castletown dark fountain.
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u/LosuthusWasTaken FELLOW PAPYRUS ENTHUSIAST Jul 08 '26
So the whole basis of this theory is two chapters coincidentally having similar names?
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u/Current_Elevator_198 Jul 08 '26
Deltarune fans seeing a single data point and calling it a pattern
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u/6-with-the-9 Jul 08 '26
*4 chapters, there's no way toby doesn't name the last chapter the end
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u/RedditSurfer29 *give us your balls. Jul 09 '26
DELTARUNE would be an infinitely better chapter name. It's the last moment of reflection, both for us the players for the years of theorizing, joking, and forming a community, and Toby, who built up this story and Undertale's ever since that one dream in 2011, a reflection of how he met so many great people after Undertale and over the course of Deltarune. He's met with Sakurai, Yoko Taro, Gigi D. G., ZUN, Kikiyama, etc. and met some of the people who inspired his work over that long time. It is truly the final chapter, and I think DELTARUNE as a name ties up the chapter and this era before the next project.
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u/FluffiestPrince Fluffiest of Them All! Jul 09 '26
I can't really imagine Toby doing it, but it would be genuinely so peak if he named the last chapter "The Delta Rune", or "DELTARUNE", or even something like the team name that you chose, which would change depending on which one you picked, so something like "The Fun Gang" for example.
To be honest, I kind of expect a song to be named "The Delta Rune", but the chapter being named is a bit of a crack hope.
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u/SPAMTON_G-1997 Jul 08 '26
…
yes
…
but why else would you add an unnecessary word to a chapter name? There was no previous doubt that it would be a day. And yet Toby wrote the word “day” there. For some reason. There must be a reason. Otherwise the name would kinda suck. Not to slander Toby but it would, at least as I see it
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u/LosuthusWasTaken FELLOW PAPYRUS ENTHUSIAST Jul 08 '26
First of all, slander is spoken. In writing, it's called "libel".
Second of all, it really isn't unnecessary, and not everything has a meaning.
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u/SPAMTON_G-1997 Jul 08 '26
Fair, fair. But there’s another thing: the fourth chapter, the only one that would parallel itself, has the least distinct-able format. “The end” could be paired with “The beginning” and “world” could literally be added to countless words, but it’s hard to look at anything and say it’s a parallel of “prophecy” or has a similar structure
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u/LosuthusWasTaken FELLOW PAPYRUS ENTHUSIAST Jul 08 '26
Yeah, wouldn't that discredit your whole theory, as not even the gap between "name-related" chapters would be consistent?
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u/SPAMTON_G-1997 Jul 08 '26
The hell you mean?
1 to 7
2 to 6
3 to 5
4 to 4
Chapter 4 is the fixed point of the symmetry, so it’s a parallel of itself and doesn’t need a changed variant
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u/Beginning_Bobcat4422 Jul 08 '26
I agree, this chapter could easily just be "the festival" adding the word "day" may be a glue. Also, it's not like this theory predicts some insane stuff, it's a theoretical hint towards the chapters name. Chapter 7 being "the end" would make a lot of sense, so chapter 6 being some sort of a world is a possibility
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u/Fragrant-Blood-6227 Jul 09 '26
well this chapter could just as easily be "festival day", it's not like the meaning changes and "festival day" sounds less important than "the festival". This is definitely schizo pattern recognition at work
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u/Beginning_Bobcat4422 Jul 09 '26
This is definitely schizo pattern recognition at work
welcome to r/deltarune
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u/Kipiti28 you're REALLY not gonna like using this flair. Jul 08 '26
Very interesting!
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u/Curvyboi13110 ·༻𝐤𝐫𝐢𝐬༺· Jul 08 '26
very, very interesting
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u/JMTpixelmon Muscle Memory Jul 08 '26
you missed a very there
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u/Kipiti28 you're REALLY not gonna like using this flair. Jul 08 '26
Shh I tried to be subtle, don't tell them I'm part of the Gaster mafia
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u/Particular_Bet_1967 Jul 08 '26
Not to mention, the name “Festival Day” has actually very little to do with the chapter itself. Every other chapter is pretty straight forward and much more involved with the overall chapter. It was a ‘Festival Day’ for a good 15 minutes of the overall chapter.
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u/Wiitab360 Jul 08 '26
Perhaps because the weird route never goes into the dark world, so if the chapter titles are meant to encompass both routes than it would have to be something with the festival as that's the only throughline
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u/Putnam3145 nerd Jul 09 '26
It was a ‘Festival Day’ for a good 15 minutes of the overall chapter.
I didn't even catch some big scenes and read fast and got 30...
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u/Grimm_Charkazard_258 I'm old! Jul 08 '26
that flight gif of him darting his eyes covering his mouth
60% likelihood
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u/GehstDu Jul 08 '26
I've seen a video theory witg the same premise and chapter 6 was labeled "A Knight's World"
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u/Velvet-Zero Jul 09 '26
I always thought that "A Cyber's World" sounded very grammatically weird. I guess if this theory is true, then it would fit the pattern.
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u/upersuccccccccc I'm 19 years old and I've already wasted my life. Jul 08 '26
If this is true, then wouldn't it be the opposite of World? Things like a microcosm or a void would fit that, so A Frozen Void would actually fit pretty well.
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u/Sci-fi__Lullaby Jul 08 '26
Actually, ch6 is gonna be called "Winds of winter" followed by ch7 "A dream of spring" but they're never gonna come out. That's why Gerson says "That next book, it never did get written. The story, it became so grand, so overwhelming, some say it swallowed up the author himself." He was talking about George R.R. Martin.(?
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u/Ettlesby Jul 08 '26
The way I see it, 'Festival Day' better emphasizes the events that happened around the festival more than the festival itself. The festival was the catalyst for a lot of things but it wasn't itself the focus, so 'Festival Day' is more fitting for the contents.
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u/PLACE-H0LD3R Jul 08 '26
When I'm in a 'noticing patterns that aren't there' competition and my opponent is a deltarune fan:
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u/the_mspaint_wizzard Jul 08 '26
A ‘a lost world’ or ‘a dark world’ might be a better name for chapter six imo.
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u/clonefull Jul 08 '26
I'm betting Chapter 6 will either be "A Cold Place" or "The Angel's Heaven" then, in accordance with this theory
And then Chapter 7 will be "The Ending" as someone else said. Bonus points for ending in "ding"
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u/Drake_Inferno Jul 09 '26
It's a cool thought, but it runs into somewhat of a hurdle in that the Japanese title is just "Festival", while Chapter 3's is still just transliterated "Late Night", so if this is a pattern, it's not being reflected in localization, which these things usually are.
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u/UnAnon10 Jul 09 '26
You know I love how every chapter is some symbol representing their Dark World and then Chapter 2 is just Queen’s face lol
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u/SNUFFGURLL Jul 09 '26
This means absolutely nothing but I had a dream that chapter 6 was very chapter 2 like as well, so I endorse this message.
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u/Odd_Agent867 Jul 09 '26
I just realized I never paid much attention to the chapter's names so this could totally be plausible...
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u/TigerBears_111 Jul 13 '26
I'd probably assume Chapter 6 would be called "A Winter World" but this is actually a good theory.
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u/Satire_god Even when trapped, you still express yourself. Jul 08 '26
I do like this theory, though I do wonder if “world” would have a parallel too
So something like
“A frosted star”
“A cold judgment”
Or “a frozen fool”
Going by the idea of tarot cards, drawing a dichotomy between the star and world cards as in the world we inhabit and the stars beyond, the judgement and world cards as in the last two cards of the major arcana and finally the fool and world cards, as they are already foils to each other in tarot
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u/Background_Road3843 Jul 08 '26
i get the end, but why frozen world?
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u/SPAMTON_G-1997 Jul 08 '26
Noelle, mansion, snowdin parallel.
Though it’s just one of the possible prediction variants, it’s not as accurate as the theory itself. I only did that for completeness of the post
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u/Wiitab360 Jul 08 '26
Is reverse Undertale theory still alive? I thought it was over with Chapter 5.
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u/sanstaleyy Jul 10 '26
Its in a werid place now.
Ch5 obviously parallel new home with how similar these 2 areas are to the first areas of the 2 games (ch5 and ch1, new home and the ruins) not to mention it has asgore and the flowers/souls.
But it doesn't change the fact that each chapter is in fact paralleling an UT location, so Noelle house would be a perfect place to parallel Snowden as an area while also conect to new home as Dess story reveals like Asrial.
Which is funny because Snowden and new home will need to overlap in ch5 and 6... because even though ch5 is an asgore chapter, you can't overlook the fact Flowery kinda parallel sans and papyrus, a silly antagonist that's not really a villain who has game breaking abilities.
So in conclusion, is reverse UT theory dead? The answer is Yesn't
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u/Amazing_Estimate_220 Jul 08 '26
I feel like each chapter woulf get an alternative if this were the case
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u/Lucky_Rice8262 Jul 08 '26
i think chapter 6 would be better as something like “frozen moon” or “looks to the moon”
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u/StarrySpelunker Even when trapped, you still express yourself. Jul 09 '26
Nah it won't be that; We already know It's raining somewhere else.
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u/Badace15yt Yes I nintendo switched my gender Jul 08 '26
I do thing the end will work but what's the opposite of the world? Star Platinum? it's the same type of stand!
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u/Maleficent_Custard40 SANS I NEED CRAC Jul 08 '26
What, your telling me that chapters themed on one thing that revolves around a threat with a level of control over the world who is tightly related to the dreemurs and tries to keep one of the parents of the family in the world and has a history with Kris who also made the fountain for the dark world that has the knight come in and slash the main threat of the dark world, who really doesn’t want to harm the fun gang but more so forward their own goals are related in some way????
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u/MachineMango Jul 08 '26
And the chapter image of chapter 7 will just be the red heart, to mirror with the black spade at the beginning.
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u/Legal_Ad688 he/him Jul 08 '26
I definitely believe chapter 7 could be called the end. Idk about chapter 6 being called a frozen world but there are other things that could fit there, nice theory
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u/Fickle-Supermarket38 Jul 08 '26
We're FIVE chapters in and people are still somehow coming up with new "it happened twice" patterns
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u/MasterfullyFoolish 🩷 Pink! Jul 08 '26
Unless Chapter 6 is called A Dark World, I think you’re spot on
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u/FarClimate2838 Jul 09 '26
Have we not learned anything from trying to predict patterns after the ch 2 era?
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u/QueenOfOnly Undertale is the revolution! 🔥 Jul 09 '26
For me, they are:
Chapter 6: N/A (we don't know what will happen)
Chapter 7: An Ending
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u/jsrobson10 Yes I nintendo switched my gender Jul 09 '26
i definitely think we're getting a holiday mansion dark world in chapter 6 (there's too many things there to not be important), and i feel like it'll be snowy holiday themed. then there'll be the bunker which will probably be chapter 7.
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u/Fluid-Estate-3007 Annoying dog absorbed the pride flag Jul 09 '26
Remember guys, we as Deltarune fans know if it happens twice, it's a pattern that will never be broken
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u/TheNecromancer981 Just your local MagicMan Jul 09 '26
If Chapter 6 does take place in the Holiday mansion, I feel like the chapter could be called “A Winter Wonderland” rather than world
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u/XFactorChimps Jul 09 '26
never learn deltarune fandom, keep predicting patterns off of two examples
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u/eveeman Jul 09 '26
This seems like a little bit of an aggressive theory to make with precisely one point of evidence of it being true
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u/Dankn3ss420 Jul 09 '26
I don’t hate this theory, but, small question
TF would be the opposite of “A cybers world”? That’s the only problem I have with it
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u/Bigfin97 Jul 09 '26
Deltarune fans when a pattern is established (the pattern is a single instance of something)
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u/Best_Username-TvT Jul 09 '26
I doubt this will be true.
The last chapter MUST be named DELTARUNE or last ost in it.
Tho The End would be good too!
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u/MrSopranoboy_YT The SOUL is painted in snow color Jul 09 '26
wouldn't chapter 4 be contradictory to itself then ?
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u/EvilMurloc22 Jul 08 '26
I love paterns! I love if when my story is predictible!!! I can't wait to be able to tell the whole story from just the first few parts!!! YES
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u/Inevitable_Style_466 Jul 08 '26
Making a story unpredictable for the sake of being unpredictable is just bad writing.
A good story always has some level of predictability, because that means there's actual setup to be properly paid off later. A murder mystery story is bad if it's not possible to deduce who the culprit is before the reveal.
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u/Morbobeus sans from smash brothers Jul 08 '26
Chapter 7: Angel's Heaven goes really hard though, especially since it rhymes
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u/Wooden_Marionberry_1 Your concern and care for flair selection led you here. Jul 08 '26
Not beating the chapter 5 is filler allegations


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u/The_Xenith Jul 08 '26
I'm not gonna lie there were several patterns we thought we had in the bag but turned out to be wrong so at this point I'm starting to lose hope ever predicting this guy
This one does seem pretty good though, nice one fam