Song of the Deep and its Sources

Insomniac Games' Song of the Deep is a charming 2-D action-puzzle game in a rich underwater fantasy world. The company's first "Metroidvania"-style game, the story revolves around young Merryn, a 12-year old girl who lives by the sea. When her fisherman father goes missing one terrible night, she must descend below in her own makeshift submarine to find him. There, she discovers that the mystical world of sea creatures, sunken wrecks, and ancient civilizations he told her about in bedtime stories actually is real. 

Song of the Deep's reveal trailer.

The 2016 game draws inspiration from many sources, not the least being the daughter of Insomiac's Chief Creative Officer, Brian Hastings. In the first place, Merryn was designed as both a role model for Fiona Hastings and a tribute to her. Second, the younger Hastings was reading lots of Irish mythology at the time and suggested basing the story on it.

Rather than mermaids, Song of the Deep features the "Merrow": mermaid-like creatures of Irish legend. The archetypal tale of the merrow is The Lady of Gollerus, the following version being published in 1828 by Thomas Crofton Crocker in his collection Fairy Legends and Traditions of the South of Ireland:

On the shore of Smerwick harbour, one fine summer's morning, just at day-break, stood Dick Fitzgerald "shoghing the dudeen," which may be translated, smoking his pipe. The sun was gradually rising behind the lofty Brandon, the dark sea was getting green in the light, and the mists, clearing away out of the valleys, went rolling and curling like the smoke from the corner of Dick's mouth. 

"'Tis just the pattern of a pretty morning," said Dick, taking the pipe from between his lips, and looking towards the distant ocean, which lay as still and tranquil as a tomb of polished marble. "Well, to be sure," continued he, after a pause, "'tis mighty lonesome to be talking to one's self by way of company, and not to have another soul to answer one—nothing but the child of one's own voice, the echo! I know this, that if I had the luck, or may be the misfortune," said Dick with a melancholy smile, "to have the woman, it would not be this way with me!—and what in the wide world is a man without a wife? He's no more surely than a bottle without a drop of drink in it, or dancing without music, or the left leg of a scissors, or a fishing line without a hook, or any other matter that is no ways complete—Is it not so?" said Dick Fitzgerald, casting his eyes towards a rock upon the strand, which though it could not speak, stood up as firm and looked as bold as ever Kerry witness did. 

But what was his astonishment at beholding, just at the foot of that rock a beautiful young creature combing her hair, which was of a sea-green colour; and now the salt water shining on it, appeared in the morning light, like melted butter upon cabbage. 

Dick guessed at once that she was a Merrow, although he had never seen one before, for he spied the cohuleen driuth, or little enchanted cap, which the sea people use for diving down into the ocean, lying upon the strand, near her; and he had heard that if once he could possess himself of the cap, she would lose the power of going away into the water: so he seized it with all speed, and she, hearing the noise, turned her head about as natural as any Christian. 

When the Merrow saw that her little diving-cap was gone, the salt tears—doubly salt, no doubt, from her—came trickling down her cheeks, and she began a low mournful cry with just the tender voice of a new-born infant. Dick, although he knew well enough what she was crying for, determined to keep the cohuleen driuth, let her cry never so much, to see what luck would come out of it. Yet he could not help pitying her, and when the dumb thing looked up in his face, and her cheeks all moist with tears, 'twas enough to make any one feel let alone Dick, who had ever and always, like most of his countrymen, a mighty tender heart of his own. 

"Don't cry, my darling," said Dick Fitzgerald; but the Merrow, like any bold child, only cried the more for that. 

Dick sat himself down by her side, and took hold of her hand, by way of comforting her. 'Twas in no particular an ugly hand, only there was a small web between the fingers, as there is in a duck's foot; but 'twas as thin and as white as the skin between egg and shell. 

"What's your name, my darling?" says Dick, thinking to make her conversant with him; but he got no answer; and he was certain sure now, either that she could not speak, or did not understand him: he therefore squeezed her hand in his, as the only way he had of talking to her. It's the universal language; and there's not a woman in the world, be she fish or lady, that does not understand it. 

The Merrow did not seem much displeased at this mode of conversation; and, making an end of her whining all at once—"Man," says she, looking up in Dick Fitzgerald's face, "Man, will you eat me?" 

"By all the red petticoats and check aprons between Dingle and Tralee," cried Dick, jumping up in amazement, "I'd as soon eat myself, my jewel! Is it I eat you, my pet?—Now 'twas some ugly ill-looking thief of a fish put that notion into your own pretty head, with the nice green hair down upon it, that is so cleanly combed out this morning!" 

"Man," said the Merrow, "what will you do with me, if you won't eat me?" 

Dick's thoughts were running on a wife: he saw, at the first glimpse, that she was handsome; but since she spoke, and spoke too like any real woman, he was fairly in love with her. 'Twas the neat way she called him man, that settled the matter entirely. 

"Fish," says Dick, trying to speak to her after her own short fashion; "fish," says he, "here's my word, fresh and fasting, for you this blessed morning, that I'll make you mistress Fitzgerald before all the world, and that's what I'll do." 

"Never say the word twice," says she; "I'm ready and willing to be yours, mister Fitzgerald; but stop, if you please, 'till I twist up my hair." 

It was some time before she had settled it entirely to her liking; for she guessed, I suppose, that she was going among strangers, where she would be looked at. When that was done, the Merrow put the comb in her pocket, and then bent down her head and whispered some words to the water that was close to the foot of the rock. 

Dick saw the murmur of the words upon the top of the sea, going out towards the wide ocean, just like a breath of wind rippling along, and says he in the greatest wonder; "Is it speaking you are, my darling, to the salt water?" 

"It's nothing else," says she quite carelessly, "I'm just sending word home to my father, not to be waiting breakfast for me; just to keep him from being uneasy in his mind." 

"And who's your father, my duck?" says Dick. 

"What!" said the Merrow, "did you never hear of my father? he's the king of the waves, to be sure!" 

"And yourself, then, is a real king's daughter?" said Dick, opening his two eyes to take a full and true survey of his wife that was to be. 

"Oh, I'm nothing else but a made man with you, and a king your father;—to be sure he has all the money that's down in the bottom of the sea!" 

"Money," repeated the Merrow, "what's money?" 

"'Tis no bad thing to have when one wants it," replied Dick; "and may be now the fishes have the understanding to bring up whatever you bid them?" 

"Oh! yes," said the Merrow, "they bring me what I want." 

"To speak the truth, then," said Dick, "'tis a straw bed I have at home before you, and that, I'm thinking, is no ways fitting for a king's daughter: so, if 'twould not be displeasing to you, just to mention, a nice feather-bed, with a pair of new blankets—but what am I talking about? may be you have not such things as beds down under the water?" 

"By all means," said she, "Mr. Fitzgerald—plenty of beds at your service. I've fourteen oyster-beds of my own, not to mention one just planting for the rearing of young ones." 

"You have?" says Dick, scratching his head and looking a little puzzled. "'Tis a feather-bed I was speaking of—but clearly, yours is the very cut of a decent plan, to have bed and supper so handy to each other, that a person when they'd have the one, need never ask for the other." 

However, bed or no bed, money or no money, Dick Fitzgerald determined to marry the Merrow, and the Merrow had given her consent. Away they went, therefore, across the strand, from Gollerus to Ballinrunnig, where Father Fitzgibbon happened to be that morning. 

"There are two words to this bargain, Dick Fitzgerald," said his Reverence, looking mighty glum. "And is it a fishy woman you'd marry?—the Lord preserve us!—Send the scaly creature home to her own people, that's my advice to you, wherever she came from." 

Dick had the cohuleen driuth in his hand, and was about to give it back to the Merrow, who looked covetously at it, but he thought for a moment, and then, says he— 

"Please your Reverence she's a king's daughter." 

"If she was the daughter of fifty kings," said Father Fitzgibbon, "I tell you, you can't marry her, she being a fish." 

"Please your Reverence," said Dick again, in an under tone, "she is as mild and as beautiful as the moon." 

"If she was as mild and as beautiful as the sun, moon, and stars, all put together, I tell you, Dick Fitzgerald," said the Priest stamping his right foot, "you can't marry her, she being a fish!" 

"But she has all the gold that's down in the sea only for the asking, and I'm a made man if I marry her; and," said Dick, looking up slily, "I can make it worth any one's while to do the job." 

"Oh! that alters the case entirely," replied the Priest; "why there's some reason now in what you say: why didn't you tell me this before?—marry her by all means if she was ten times a fish. Money, you know, is not to be refused in these bad times, and I may as well have the hansel of it as another, that may be would not take half the pains in counselling you as I have done." 

So Father Fitzgibbon married Dick Fitzgerald to the Merrow, and like any loving couple, they returned to Gollerus well pleased with each other. Every thing prospered with Dick—he was at the sunny side of the world; the Merrow made the best of wives, and they lived together in the greatest contentment. 

It was wonderful to see, considering where she had been brought up, how she would busy herself about the house, and how well she nursed the children; for, at the end of three years, there were as many young Fitzgeralds—two boys and a girl. 

In short, Dick was a happy man, and so he might have continued to the end of his days, if he had only the sense to take proper care of what he had got; many another man, however, beside Dick, has not had wit enough to do that. 

One day when Dick was obliged to go to Tralee, he left his wife, minding the children at home after him, and thinking she had plenty to do without disturbing his fishing tackle.
Dick was no sooner gone than Mrs. Fitzgerald set about cleaning up the house, and chancing to pull down a fishingnet, what should she find behind it in a hole in the wall but her own cohuleen driuth. 

She took it out and looked at it, and then she thought of her father the king, and her mother the queen, and her brothers and sisters, and she felt a longing to go back to them. 

She sat down on a little stool and thought over the happy days she had spent under the sea; then she looked at her children, and thought on the love and affection of poor Dick, and how it would break his heart to lose her. "But," says she, "he won't lose me entirely, for I'll come back to him again; and who can blame me for going to see my father and my mother, after being so long away from them." 

She got up and went towards the door, but came back again to look once more at the child that was sleeping in the cradle. She kissed it gently, and as she kissed it, a tear trembled for an instant in her eye and then fell on its rosy cheek. She wiped away the tear, and turning to the eldest little girl, told her to take good care of her brothers, and to be a good child herself, until she came back. The Merrow then went down to the strand.—The sea was lying calm and smooth, just heaving and glittering in the sun, and she thought she heard a faint sweet singing, inviting her to come down. All her old ideas and feelings came flooding over her mind, Dick and her children were at the instant forgotten, and placing the cohuleen driuth on her head, she plunged in. 

Dick came home in the evening, and missing his wife, he asked Kathelin, his little girl, what had become of her mother, but she could not tell him. He then inquired of the neighbours, and he learned that she was seen going towards the strand with a strange looking thing like a cocked hat in her hand. He returned to his cabin to search for the cohuleen driuth. It was gone and the truth now flashed upon him. 

Year after year did Dick Fitzgerald wait, expecting the return of his wife, but he never saw her more. Dick never married again, always thinking that the Merrow would sooner or later return to him, and nothing could ever persuade him but that her father the king kept her below by main force; "For," says Dick, "she surely would not of herself give up her husband and her children." 

While she was with him, she was so good a wife in every respect, that to this day she is spoken of in the tradition of the country as the pattern for one, under the name of the Lady of Gollerus. 

Enemies of the Merrow are the Fomori. In Irish mythology, the Fomori (Fomóire or Fomóiri in Old Irish) are a species of malevolent deities in opposition to the Tuatha Dé Danann, The latter are the Irish pantheon of forces arraigned towards order and civilization: The Dagda, chief god-king of agriculture and magic; The Morrigan, goddess-queen of war; Brigid, goddess of spring and fertility; Manannán mac Lir, king of the Otherworld and god of the sea; Goibniu, god of metalsmithing; and others. The Fomori are forces of chaos, destruction, and death. They are also conceived as raiders from across or beneath the sea, a possible reference to Viking raiders.

In mediaeval legend, the Fomori were the first to occupy Ireland in the wake of the global flood. They subsisted for 200 years on fish and fowl until Partholon came with oxen, plough, houses, and brewing. His people displaced the Fomori, only to eventually die themselves of plague. This process repeated with each subsequent occupation of Ireland. This lasted until the Tuatha Dé Danann came along, who conquered Ireland for themselves and installed a king who was half-Tuatha Dé and half-Fomori. This didn't work out so well, resulting in generations of enmity culminating in the Battle of Mag Tuired, whereupon the Fomori were defeated and driven into the sea.

Song of the Deep interprets the Fomori as raiders from beneath the sea, who lived in a high-tech underwater city and used their technology to subjugate and exploit the ocean. They became the enemy of the Merrow, who live in their own ruined, monumental stone city and were all-but exterminated by the Fomori. Many parallels could be drawn to an environmental parable, or a parable of modernity's displacement of traditional stories and their values. The game's final boss is the Fomori's final abomination against nature, and your goal is to liberate rather than destroy it.

Adopting Irish mythology lead to Irish narrators and an overall Irish tone that recalls the films of Cartoon Saloon, producers of The Secret of Kells (2009) and The Breadwinner (2017). Many critics noticed a particular tonal familiarity between Song of the Deep and Cartoon Saloon's animated hit Song of the Sea (2014). The art style, backgrounds, female protagonist, messages, tone, and final resolution also parallel the works of Studio Ghibli.

Song of the Deep is not an overly long or complicated game. Like the Metroid franchise long before it, a sprawling map sends Merryn and the player scooting around to pick up submarine upgrades, puzzle pieces, and so on to unlock new areas and advance the story. Gameplay focuses more upon exploration and problem solving than on combat, though some parts can be tricky when you're exploring, problem solving, and trying to fight off killer crustaceans. One particular sequence, a timed escape from voracious squid, is absolutely terrifying and will take multiple nerve-wracking attempts.

Song of the Deep's launch trailer.

Despite cephalopod-induced trauma, Song of the Deep is a simple but engaging game with a charmingly imagined world and extraordinarily beautiful art. Song of the Deep is available on PS4, Xbox One, and Steam. Click here to visit the official website.