The Legend of Ys is one of the great Breton myths and one of the least-used sources in modern indie gaming. A coastal city, a sorceress queen, a rebellious princess, a catastrophic flood, and a final king riding his horse across the rising sea. Every element of HAWKER's backstory about Malgven, Ahès, and King Graylon traces to this tradition, and this piece from the team at Tyrian Games unpacks the source material and how we've adapted it.
TL;DR
- The Legend of Ys is a Breton myth about a coastal city drowned by a catastrophic flood, roughly medieval in written form but with much older roots.
- Key figures include King Gralon (the Ysean ruler), his sorceress wife Malgven, and their daughter Dahut, also called Ahès.
- HAWKER draws Malgven's name and character directly from the Ys legend. Ahès is the game's drowned Mari-Morgen figure. King Graylon echoes Gralon.
- The tradition is public domain, documented in 19th-century Breton collections and earlier medieval sources.
- Édouard Lalo's 1888 opera Le Roi d'Ys is the most accessible cultural touchstone for players unfamiliar with the folklore.
What the Legend of Ys actually is
The story of Ys varies across the Breton, French, and academic tellings, but the core beats hold across all versions.
King Gralon (sometimes rendered Gralonius, Grallon, or Gradlon) rules the Breton kingdom of Cornouaille. He takes to wife Malgven, a sorceress from mysterious northern lands, often identified as Norway or further. Together they have a daughter, Dahut, also called Alc'huèz or Ahèz or Ahès across variant spellings.
Ys is a great coastal city built below sea level, protected by a dyke with a single bronze key that the king keeps around his neck. The city is wealthy, cosmopolitan, and increasingly decadent under Dahut's influence. She practices magic, throws excessive parties, and entertains a succession of lovers whom she dispatches at dawn.
A mysterious suitor appears one night. In most versions he's the devil in disguise. Dahut, enchanted, steals the bronze key from her sleeping father and gives it to her lover. He opens the dyke. The sea pours into Ys. The city drowns.
King Gralon flees on his horse Morvarc'h, carrying Dahut behind him. A voice from the sky or the sea (in most versions, Saint Guénolé) commands him to throw his daughter into the water to save himself. He does. Dahut drowns, or transforms into a sea-creature.
The king reaches dry land and founds the new capital of Quimper. Ys remains at the bottom of the bay. On certain days the ruins can be seen through the water, and some versions claim the city will rise again at the end of the world.
The written record
The Ys legend first appears in substantive written form in the 15th century, though it references older oral traditions. Pierre Le Baud's Cronicques et Ystoires des Bretons from the early 16th century includes a version. The legend's modern shape comes together across the 19th century, particularly through Théodore Hersart de la Villemarqué's Barzaz Breiz ballad collection of 1839 and various Breton folklore compilations.
Édouard Lalo's opera Le Roi d'Ys premiered in 1888 and introduced the legend to a broader European audience. The opera plays somewhat fast with the folkloric details but captures the emotional shape of the story well, and it's the most accessible cultural touchstone for players unfamiliar with the Breton original.
Anatole Le Braz references the Ys legend in several of his early 20th-century folklore writings, particularly where he discusses the relationship between Ys and later Breton flood-and-drowning traditions. Walter Evans-Wentz's The Fairy-Faith in Celtic Countries from 1911 touches on Ys as part of its survey of Celtic sunken-city myths.
Malgven in the Ys tradition
Malgven is one of the most underused characters in the Ys legend from a game-design perspective. She's the sorceress queen, the powerful foreigner, the mother who effectively disappears from the story before the drowning. She's the figure whose presence explains where Dahut's magic comes from but whose own fate is rarely detailed.
In some Ys variants, Malgven dies in childbirth. In others, she returns to her northern homeland after raising Dahut. In a few, she leaves ambiguously, and the king marries her magical horse Morvarc'h as a kind of replacement. (The Breton folkloric imagination is wider than modern readers often expect.)
HAWKER's Malgven takes the name and the sorceress-queen character and transposes them into a sci-fi-inflected context. In our world, Malgven is a Laustic female, one of five crash-survivors of the Caladrius starship. She's the one who broke from her kin early, chose to integrate with Yseans rather than dominate them, and counselled Duke Graylon through decades of human development before the Fall. Our Malgven has a daughter called Ahès with Graylon. Ahès drowns in Kerys during the catastrophe that destroys the old duchy. Malgven is killed and later returns in disguise as "Belissant" to work against her former crew.
The beats are faithful to Ys. The frame is different. The foreign sorceress, the human king, the drowned daughter, the ambiguous return. We didn't invent the narrative. We translated it.
Ahès as Mari-Morgen
In the Breton folkloric tradition, Dahut-Ahès doesn't cleanly die when she's thrown from her father's horse. In many variants she transforms into a Mari-Morgen, a mermaid or water-fairy, and continues to haunt the bay where Ys drowned. Fishermen hear her singing. Lost ships see her from a distance.
This transformation gave HAWKER the design framework for our Ahès/Morgen character. She drowns in Kerys during the Fall. She doesn't stay dead. She becomes a mari-morgen, the Breton term we use in-game, and her presence in the Kozhavon waters is part of what's blocking Aurelian passage into the duchy's interior. The Ys tradition gave us both the mechanism and the tone.
Specifically, the Ys tradition's treatment of Ahès is neither purely villainous nor purely sympathetic. She's a daughter who did terrible things, died unfairly, and returned as something else. That ambiguity is hard to write from scratch and easy to miss if you're working from modern fantasy templates. The Breton original had it. We kept it.
Graylon in the Ys tradition
King Gralon in the Ys legend is the figure who survives. He makes the impossible choice (throwing his daughter into the water) and founds the new capital. Most modern retellings focus on Dahut; Gralon tends to recede into background. He's a figure of tragic compromise rather than heroic action.
HAWKER's Duke Graylon echoes this. Our Graylon is the last Duke of Ysward, who ruled during the Fall and led the survivors of Kerys into the hills. He's not the game's protagonist. He died before Hawker's timeline starts, though his legacy shapes the game's politics and the Aurelian expedition's motivations. Our Graylon made terrible compromises to keep Ysward independent, and those compromises are part of the reason the duchy was vulnerable when the Laustic struck. That's the Gralon shape transposed onto a different stage.
Aymeri, the Aurelian expedition leader in HAWKER's Keridann chapter, is Graylon's great-grandnephew and third in line to the Aurelian throne. His arrival in Ysward is our continuation of the Gralon dynasty narrative, four generations removed.
Why the Ys legend is useful for games
Four reasons developers should consider the Ys legend.
Sunken cities are visually strong. The drowned city is one of the most arresting images in European folklore. Games that use variations have found success: Bioshock Rapture is a secular sunken city; Shadow of the Colossus' submerged ruins carry similar energy. The folklore has visual hooks that translate directly.
The daughter-transformation is an adaptable narrative. Dahut-Ahès becoming a Mari-Morgen is a specific mythic beat that games can transpose into many shapes. The corrupted daughter, the drowned heir, the sea-spirit who was once human. These are load-bearing narrative templates.
The father's choice is a moral puzzle. King Gralon throwing his daughter into the sea is a classic mythic impossible-choice scenario. Games that treat moral dilemmas seriously have a working template in the Ys tradition.
The Breton tonal register is rare. Sunken-city myths exist in many traditions, but the specifically Breton texture, with its Catholic-pagan overlay and its melancholy rather than triumphal mode, is rare in games. Drawing from Ys rather than Atlantis or Lyonesse gives a project a distinctive palette.
Games that touch Ys (mostly indirectly)
Honest survey. Direct uses of Ys are rare. The tradition surfaces indirectly in a number of games.
Lalo's opera and its cultural afterlife have put Ys on the European artistic map, and indirect references appear in fantasy games with Celtic or Breton-adjacent settings. The Ys RPG series by Falcom, starting in 1987, is named for the legend though its fantasy content diverges substantially from the Breton source.
HAWKER draws on Ys directly through character and setting naming. We think this is relatively rare in the indie space. Other studios working in Celtic folklore (Hellblade: Senua's Sacrifice, parts of The Witcher) tend toward Irish and Scottish material rather than Breton.
A first-hand Hawker design note
One of the specific design debates we had about Malgven was whether to use her real Breton-legend name at all. The alternative was an invented name that carried no cultural baggage. We tested both during the 2024 writing phase.
The invented-name version was easier for testers unfamiliar with Breton folklore. They didn't have to bridge a cultural reference. But the invented-name version also felt lighter. The character carried less emotional weight because she wasn't carrying anyone else's weight.
We committed to the real Breton name. Testers unfamiliar with Ys have to Google. Testers who do get a specific pleasure when they recognise the reference. The Ys-aware players report that knowing the source makes Malgven's arc in Hawker more legible, because they can see the original myth's shape in the adaptation.
This is the same principle that shapes the rest of Hawker's folkloric choices. We use the real names because the names come with real weight. Invented vocabulary sometimes sounds cleaner, but it can't do the work that a thousand years of folk tradition does. We owe the Ys tradition the character's emotional depth.
FAQ
What is the Legend of Ys?
A Breton myth about a coastal city drowned by catastrophic flood. It features King Gralon, his sorceress wife Malgven, and their daughter Dahut-Ahès.
Who was Malgven?
In the Breton tradition, Malgven was a sorceress queen from northern lands, wife of King Gralon, mother of Dahut-Ahès. HAWKER uses her name and character template directly.
Did Ys really exist?
No. Ys is a mythical city. Some scholars connect the legend to real submerged features off the Breton coast, but there's no archaeological evidence of a literal city.
Is the Ys legend public domain?
Yes. The legend is from medieval and earlier oral tradition. Specific 19th-century retellings and Lalo's 1888 opera may have their own copyrights, but the underlying myth is free for creative use.
Are Ys and Atlantis the same story?
No. Both are sunken-city myths, but Ys is specifically Breton and Atlantis is Greek via Plato. The tonal and cultural registers differ significantly.
Does Hawker tell the Ys story?
No, not directly. Hawker draws on the Ys tradition for character names and thematic beats (the sorceress queen, the drowned daughter, the catastrophic flood) but the game's actual plot is separate.
Spoiler wall
Everything above keeps to the Day 7 demo line for Hawker. Malgven, Belissant, Graylon, and the pre-Fall history of Kerys are all part of our public framing and lore documentation. Specific late-game appearances of Ahès as a mari-morgen and the Kerys ruins sit behind this wall.
Closing
The Legend of Ys is one of Europe's great sunken-city myths and one of the least-used sources in indie gaming. Public domain, tonally distinctive, and narratively rich. HAWKER uses it directly. Other studios working in Celtic folklore have an opportunity.
Next read: Breton folklore in modern games, or Korrigans and Celtic creatures.
Further reading
For related context see Breton folklore in modern games.