Undertale AU Wiki

Welcome to the Undertale AU Wiki, the main place for documenting Undertale's AUs. If you wish to contribute, just know that it is REQUIRED for you to read the Rules and Guidelines and the Policy of the Wiki BEFORE doing so.

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Undertale AU Wiki
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* so... it's been a while.

This article contains information that is from an AU with multiple stories that has at least one story completed.

Stories that have been completed:
A Whole New World

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*kid, listen. there are spoilers on this page; be careful when you're reading.

*you don't want a bad time, do ya?

To access just the story, click here.

Undertale Rho is an Undertale Alternate Universe created by Ioannis Argyris that serves greatly in expanding the universe of Undertale, presented primarily in the form of novels and short stories. At present, the entirety of the universe of Undertale Rho (taken short-hand to be Universe Rho) is shrouded in mystery. While still holding close to the original story told in Undertale, Undertale Rho is not beholden to it, and some elements from Undertale are rewritten entirely.

As of the present published material, Frisk, the main POV character, has made it through the Underground, a geographical territory held entirely within and below a mountain called Mount Ebott filled with a species collectively known as the Monsters, once, and has made it back to the surface. After preforming an action that causes him to truly reflect upon his actions and ask himself if he really did do the right thing at any moment, Frisk RESET back to the moment he first awoke within the Underground.

Characters

Undertale Characters

The Monster Kid

The Monster Kid is a Monster Frisk first sees in Chapter 11 of A Whole New World. The Monster Kid is then seen throughout the duration of Part 3. At the end of Part 3, it is blatantly revealed that Frisk finds the Monster Kid annoying, though still moves to save him when he trips over a bridge.

Alphys Aleulum

Alphys Aleulum is a Kerasaurus that lives at the base of Mount Hot. She is the Dreemurr Royal Scientist and watches over the Outskirts to detect any insurrection and warn the capital before it gains too much power. She assists Frisk progress through Mount Hot in Part 4 of A Whole New World.

Asgore Dreemurr

Asgore Dreemurr is a Capra-Bovarian that lives in Elysium within the Underground. He is the king of all Monsters and serves as one of the main antagonists in A Whole New World. He is seen referring to the Barrier as "Cerberus" and the Underground as "Hades".

Asriel Dreemurr

Asriel Dreemurr was a Capra-Bovarian that was the Crown Prince of the Underground before being killed by the townspeople of Ochyro.

Birgir Ákison

The cashier found in Chapter 32 of A Whole New World, who's name is revealed to be Birgir Ákison by Ioannis, is a young orange feline-like Monster who works at the MTT-Brand Burger Emporium within the MTT Resort. Not much else is known about him, as "it's against the rules to talk to customers who haven't bought anything."

The Riverboatman

The Riverboatman is a mysterious Monster that loves to ride their boat on a river that circles the Underground.

Dogamy

Dogamy is a canine Monster that serves with the Canine Unit within Snowdin Heights alongside his wife. He is killed in Chapter 9 of A Whole New World.

Dogaressa

Dogaressa is a canine Monster that serves with the Canine Unit within Snowdin Heights alongside her husband. She is killed in Chapter 9 of A Whole New World.

Doggo

Doggo is a canine Monster that serves with the Canine Unit within Snowdin Heights. He is killed by Frisk in Chapter 8 of A Whole New World.

Dogmega

Dogmega is a canine Monster that serves with the Canine unit within Snowdin Heights. He is killed by Frisk in Chapter 10 of A Whole New World when he accidentally charges off of a cliff.

Dogmicron

Dogmicron is a canine Monster that serves with the Canine Unit within Snowdin Heights. He is killed by Frisk in Chapter 9 of A Whole New World.

Flowey the Flower

Flowey the Flower is a sentient Greek Buttercup that lives in the Underground. He is stylized as being incredibly insane and is said by Ioannis to only feel joy when killing. He is also one of the four who has possessed the ability to RESET.

Frisk Anecros Anendotos

Frisk Anecros Anendotos is a Human that has fallen into the Underground, and is the only POV character so far in Undertale Rho. He is an extremely DETERMINED individual who will see any goal he sets to the end, no matter what gets in his way. He is a twelve-year-old boy who is eluded to be much older than he appears. He has an older brother and a younger sister, both of which he hadn't seen in years when he fell into the Underground. He is also one of the four who has possessed the ability to RESET.

Gerson Kachhua

Gerson Kachhua is an old Monster that lives in the Quiet Village of the Waterfall Caves. He runs a shop of sorts where he lives. He is, at present, only seen in Chapter 19 of A Whole New World.

Grillby Vulcanus

Grillby Vulcanus is a bartender in the small town of Snowdin. He runs the local bar that shares his name, Grillby's. He is, at present, only seen in Chapter 13 of A Whole New World.

Heats Flamesman

Hots Fireguy is a Monster first found half-way up Mount Hot in Chapter 26 of A Whole New World. Warmth Blazedude is upset when Frisk says that he remembered Fiery Flarebro's name in Chapter 30 of the same book.

Mettaton

Mettaton is an Air Elemental that has possessed a robotic body built by Dr. Alphys Aleulum. He serves as the main antagonist for Part 4 of A Whole New World. It has been noted by Ioannis that, while the physical body Mettaton possesses is male, the Air Elemental itself is female.

Muffet Araneae

Muffet Araneae is an Opodne that lives within the Home Memorial Hall on Mount Hot. She is encountered by Frisk in Chapter 28 of A Whole New World and is killed by the same in the following chapter. She is also one of the only three characters to have managed to land a fatal blow on Frisk within A Whole New World.

Napstablook

Napstablook is an Air Elemental that lives in the Quiet Village of the Waterfall Caves. He is the last remaining member of the Blook-Ton family that still lives on the family's farm. In his free-time, Napstablook makes and mixes music and posts his creations on the Undernet.

Pål Alvarsson

The Nice-Cream Vender found in Chapters 8, 16, and 30 of A Whole New World, who's name is revealed to be Pål Alvarsson by Ioannis, is a young, hopeful entrepreneur within the Outskirts of the Underground. Within A Whole New World, his attempted business failed horribly due to having no customers. Because of this, he is shown to be depressed by Chapter 30 of A Whole New World.

Papyrus Gaster

Papyrus Gaster is one of the two Asterians seen in A Whole New World. He is one of the sentries stationed in Snowdin Heights, and is the younger brother of Sans Gaster. He is rather naive and quick to trust, showing great levels of KINDNESS and PATIENCE. On the surface, he shows great annoyance to Sans's jokes, but it is implied that, deep down, he secretly enjoys them.

Royal Guard 02

Royal Guard 02 is a lizard Monster that Frisk encounters within Part 4 of A Whole New World. He is killed when he is shoved off of a cliff by Frisk into the lake of magma within Mount Hot while trying to kill him in Chapter 26 of the same book.

Royal Guard 01

Royal Guard 01 is a bunny Monster that Frisk encounters within Part 4 of A Whole New World. He is killed when Frisk decapitates him in Chapter 26 of the same book. Moments after being killed, Royal Guard 02 mumbles "Robert...", which can easily be assumed to be Royal Guard 01's name.

Sans Gaster

Sans Gaster is one of the two Asterians seen in A Whole New World. He is one of the sentries stationed in Snowdin Heights, and is the oldest of the Gaster brothers. He is quite intelligent and well versed in the ways of science, and enjoys puns and practical jokes. It is shown in A Whole New World that he has some sort of special power that temporarily allows him to set aside a section of reality and teleport around the Underground. Nobody seems to notice this, or if they do, they don't seem too worried about it. His brother Papyrus refers to him as lazy, but Sans himself says that nothing could be further from the truth in Chapter 13 of A Whole New World.

Toriel Dreemurr

Toriel Dreemurr is a Capra-Bovarian that lives within the Citadel. She is a kind, motherly figure that watches over Frisk while he is in the Citadel. At the end of Part 1, she attempts to prevent Frisk from leaving, but reluctantly gives in and lets him go.

Undyne Alcaeus

Undyne Alcaeus is a Diesian that lives in the Quiet Village of the Waterfall Caves. She is the head of the Dreemurr Royal Guard, and actively guards the entirety of Waterfall Caves. She serves as the main antagonist for Part 3 of A Whole New World.

Added Characters

Albert Ackermann

Albert Ackermann is one of the six Humans whose SOULs were captured by the Monsters. He is in Chapters 39 & 40 of A Whole New World and is the Human who possessed the PERSEVERANCE TRAIT dominated SOUL.

Aliza Chara Anendotos

Aliza Chara Anendotos is a Human female who is mentioned in the Epilogue of A Whole New World to be the sister of Frisk and William.

Artemis Hemlock

Artemis Hemlock is a Human female who lives in Athens, the same city as Frisk. She is mentioned in the Epilogue of A Whole New World.

Eumelia Ypomona

Eumelia Ypomona is one of the six Humans whose SOULs were captured by the Monsters. She is in Chapters 39 & 40 of A Whole New World and is the Human who possesses the PATIENCE TRAIT dominated SOUL.

Heron Gennaiotata

Heron Gennaiotata is one of the six Humans whose SOULs were captured by the Monsters. He is in Chapters 39 & 40 of A Whole New World and is the Human who possesses the BRAVERY TRAIT dominated SOUL.

The Mad Man

The Mad Man is a Human serial killer mentioned in the Epilogue of A Whole New World to have murdered hundreds in the homeless shelters of Athens and burning them all to the ground, forcing the homeless onto the streets.

John Acker

John Acker is one of the six Humans whose SOULs were captured by the Monsters. He is in Chapters 39 & 40 of A Whole New World and is the Human who possesses the JUSTICE TRAIT dominated SOUL.

Kallisto Kardia

Kallisto Kardia is one of the six Humans whose SOULs were captured by the Monsters. She is in Chapters 39 & 40 of A Whole New World and is the Human who possesses the KINDNESS TRAIT dominated SOUL.

Lysandra Akeraiotata

Lysandra Akeraiotata is one of the six Humans whose SOULs were captured by the Monsters. She is in Chapters 39 & 40 of A Whole New World and is the Human who possesses the INTEGRITY TRAIT dominated SOUL.

William Jones Anendotos

William Jones Anendotos is a Human male who is mentioned throughout the book A Whole New World as an italicized him or some other italicized male pronoun. He is finally introduced in the Epilogue of the same book as a serial thief, mugger, kidnapper, and murder rapist. He is revealed to be the brother of Frisk a few paragraphs before Frisk murders him. He was originally inspired off of Frisky from Under(her)tail.

Locations

Undertale Locations

Mount Ebott

Mount Ebott is a lone mountain located on Earth near the boarder of two countries. The mountain is mostly hollow, containing what is known as the Underground. The mountain is considered a restricted area due to the high number of people that have gone to the mountain and never returned; also due to this fact, the mountain has been nicknamed "Suicide Mountain".

The Underground

The Underground is a massive cavern inside and underneath Mount Ebott. Within its confines lies the Kingdom of the Monsters as well as the last remaining sentient non-Humans on Earth. The Underground has been referred to as "Hades" by Asgore, the king of the Monsters, and was the most common name for the area before the Monsters switched to using English as their main language.

The Citadel

The Citadel is a fortress wall surrounding the Ruins of Home. It was fully erected just a few weeks after the start of the Monsters' imprisonment inside Mount Ebott on top of the Home Plateau. When compared to Undertale, a small section of the Citadel takes the place of the explorable area of the Ruins.

Snowdin Province

The Snowdin Province is the second smallest province within the Underground. It is divided into two major sections, one part within the Monster Basin, the other dwells within the Outskirts. The part within the Monster Basin is known as Snowdin Forest, while the part within the Outskirts is known as Snowdin Heights. Snowdin Town is also located within the province, in Snowdin Heights, and acts as the capital of the province. The greatest defining feature of the Snowdin Province is that it is constantly covered completely in snow, and the fact that it has its own weather system that co-ops with Helios Station.

Waterfall Caves

The Waterfall Caves is a cave system located within the Outskirts. It is a very wet march that has a very unique ecosystem, and numerous wildlife that can only be found within certain parts of the Waterfall Caves. The Waterfall Caves also holds the only "natural" way into Tartarus. The capital and only town of the Waterfall Caves is the Quiet Village, which holds the smallest population of Monsters within the entire Underground.

Added Locations

The Monster Basin

The Monster Basin is a massive basin that contains most of the Underground, including almost all of the City of New Home. Frisk has never been inside the Monster Basin at any time as of the current published material.

The Outskirts

The Outskirts are a part of the Underground that is located at the outer-most edge of it. The Acheron River encircles the Underground by means of the Outskirts. The Outskirts is the part of the Underground that Frisk explored within A Whole New World.

Story

Long ago, two races ruled over the Earth: Humans and Monsters. One day, war broke out between the two races. After the long war, the Humans were victorious. They sealed the Monsters inside a mountain with a Magic Spell. Years down the line, the mountain was deemed unsafe by officials from many going to the mountain, and never returning. The mountain, named Mount Ebott by ancients that dwell in the area, was nicknamed Suicide Mountain for that very fact. Frisk, a poor young boy, was a Human ancient that one day found himself falling down a hole within the Mountain, entering the world below. Will he survive the fall? Will he return to the surface, to his home, to his friends? Find out in Underearth.

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