Salt & Steel: Mythology & Supernatural

Document type: World & Lore — Foundational
Status: Canonical
Last updated: 2026-04
See also: World Overview | Factions & Civilizations | History & Timeline | Creative Identity

Overview

The supernatural in Salt & Steel is not decoration. It is the world's second language — the thing beneath the thing, the truth the salt-stung surface of the sea tries to obscure. Every cursed artifact, every ghost ship, every creature that shouldn't exist by any natural logic, every Ley Line current pulling a ship slightly off course — all of it is evidence of the same underlying fact: the world was broken two thousand years ago, and the break has not healed.

The design principle for Salt & Steel's supernatural is drawn directly from Tim Powers' model in On Stranger Tides: magic has rules, costs, and consequences. It is not generic fantasy magic. It is specific to this world, its history, and its geography. Its sources are the Old Gods and the wound their disturbance opened. Its expressions range from the subtle (the Ley Lines that Tidecaller navigators feel rather than see) to the overwhelming (the Maelstrom, which is not a storm but a hole in the world). Its costs are real. Its power is seductive. Its dangers are not merely physical.

This document establishes the full supernatural framework of the Shattered Expanse: the cosmology that underlies it, the specific entities and phenomena within it, the rules by which it operates, and the role the player's captain plays within it.

The Old Gods

What They Are

The Old Gods are not gods in any human theological sense. They do not create, do not love, do not judge, and do not answer prayers. They predate the concept of prayer by geological epochs. They are, in the closest approximation available, forces of nature that acquired consciousness — vast, inhuman presences formed in the deep sea during an age so remote that even the Urrathi, who had longer records than anyone, could not trace their origin.

The Tidecallers describe the Old Gods as "the ocean thinking about itself." This is as accurate as language allows. They exist in the space between physics and intention — large enough and old enough that their existence shapes the world's weather, its tides, its deep-sea ecology, and the supernatural phenomena that permeate the Shattered Expanse. They do not direct these effects deliberately. They simply exist, and their existence is the cause.

The Cataclysm disturbed them — not in the sense of angering them, but in the sense of prodding a sleeping animal that may or may not be capable of waking fully. Two thousand years later, they have not fully returned to sleep. Something in the world is different than it was before the Reaching, and that difference continues to seep upward in the form of curse energy, Ley Line disruption, monster anomalies, and, most recently, signs that the Old Gods' dreams are becoming more active.

The Five Known Presences

Yavarath the Wound

Yavarath is the entity that most directly concerns the living world. It was not an Old God before the Cataclysm — it became one through the Cataclysm itself, formed from the energy of the Reaching's explosion and the Old Gods' disturbed reaction to it. Where the others are ancient and deep, Yavarath is geologically young and close to the surface. Where the others dream, Yavarath seethes.

Yavarath is the supernatural explanation for the Maelstrom, for the Storm Wastes, for the unhealed wound in the seabed that generates the Ley Lines and the curse energy and the wild magic that makes the Ember Seas dangerous and alive. It is not malevolent in a purposeful sense. It is, in the Tidecallers' metaphor, a wound that has become infected with its own pain — a feedback loop of disturbed energy that has developed something like a will, oriented entirely toward what it experienced at the moment of its formation: violation, pain, and rage.

The Leviathan Cult worships Yavarath specifically, which tells you something about the Cult's theology and something about their judgment.

The Great Sleeper

In the deepest trench of the Obsidian Deep — below even where the Ironclad Dominion's most aggressive drilling operations reach, below where any diving operation can survive — the Great Sleeper exists. It is vast. Accounts of its form differ according to how those accounts were obtained: via Tidecaller deep meditation, via Drowned Court testimony, via the fever visions of sailors who survived proximity to deep Ley Line upwellings. The consensus is something that resembles a living ocean floor — a presence vast enough that the trench it occupies is formed in the shape of its body.

The Great Sleeper's dreams are, according to Tidecaller tradition, the source of the Ley Lines of the Deep. The magical currents that run beneath the world's oceans are the dreaming mind of something so large that its thoughts become physics. This is not theology but engineering, in the Tidecaller view — the Great Sleeper is not worshipped but understood, the way one understands a geological formation that produces earthquakes. You don't pray to it. You chart it and stay out of its way.

The Great Sleeper is the entity the Lighthouse Keepers are most directly concerned with. Their beacon network is, among other things, a monitoring system — the light pulses that communicate navigational information also measure the Great Sleeper's dream-activity against a baseline established over centuries. In recent decades, that activity has increased.

The Tidemother

Where the Great Sleeper is cold and still, the Tidemother is in constant motion. She is the Old God most present in the surface world — her influence manifests in the tides, in the gyres and currents that move the ocean's surface, in the particular mood of a sea on a given night. Sailors in every region have developed traditions about her: the Järnvolk of the Frozen Straits call her Havoreth and believe her storms are moods that can be read in advance; the Ember Seas cultures have a dozen names for her in a dozen languages, all variations on "the mother who does not care."

The Tidemother is neither benevolent nor malevolent. She is maternal in the sense that the ocean is maternal — it sustains life and drowns it in equal measure, with no judgment about which. Sailors who have developed sensitivity to Ley Lines report that the Tidemother's presence has a distinct quality: not intelligent exactly, but aware, in the way that a very large, very old animal is aware of the small things that move through its territory.

The Faith of the New Sky's Three Sisters — the three winds of fair weather, headwind, and storm — are, in Tidecaller tradition, three facets of the Tidemother, fractured into more comprehensible aspects by the Cataclysm's disturbance of the Great Sleeper's dreams. Whether this is literally true or a theological construction is a question that cannot currently be answered.

The Drowned Fleet

The Drowned Fleet is not, strictly speaking, an Old God. It is something that emerged after the Cataclysm, built from materials the Old Gods did not create: the accumulated consciousness of everything the sea has swallowed. Every ship that sank, every sailor who drowned, every civilization the rising waters claimed — the sea holds the memory of all of it, and over two thousand years, that memory has developed a kind of coherence.

The Drowned Fleet is the deepest source of the Drowned Court's existence. Individual Drowned Court entities are the parts of this vast collective memory that have developed enough individual will to act. They are not controlled by the Fleet — the Fleet does not have the kind of will required for control. But they are expressions of it, the way a wave is an expression of the ocean's movement without being a separate thing from the ocean.

This distinction matters for gameplay: the Drowned Court can be negotiated with, reasoned with, and in some cases persuaded. The Drowned Fleet itself cannot. It simply is — the sea's memory of everything it has been given.

The Unnamed

There is a fifth presence in the Obsidian Deep. The Tidecallers, who are not given to dramatic silence on any subject, do not speak of it in public. The Jade Fleet's oldest records contain a chapter about it that begins with an instruction not to read the chapter. The Lighthouse Keepers' internal documents have a section titled "Third Protocol" that references the Unnamed without describing it, and the section can only be read by the First, Second, and Third Lights.

What is known: it is the oldest of the five. It was present before the others. The Cataclysm disturbed the others; it disturbed the Unnamed differently. Where the others dream, the Unnamed waits. The Drowned Court gives it a wider berth than they give Yavarath. The Leviathan Cult's upper hierarchy knows what it is and will not tell the lower tiers.

The Unnamed is the Obsidian Deep expansion's ultimate revelation. No document in the game's world provides more than fragments, and those fragments contradict each other. This is intentional: the Unnamed is the thing that cannot be fully known until you are in its presence, and by then, the knowing is its own consequence.

The Cataclysm

What Happened

Three thousand years ago, approximately, the Urrathi First Empire reached the apex of its civilization. They had built cities that could support millions. They had developed a technology of power extraction — drawing on the Ley Lines of the Deep, tapping the energy of the sleeping Old Gods for their machinery, their lights, their ships. For five hundred years, this extraction had worked, and each century's successors extracted more aggressively than the last, because the power was there and the consequences had not yet arrived.

The consequences were the Reaching.

The Urrathi's greatest minds — the Reaching Council, seventeen individuals who have been remembered in fragments as somewhere between engineers and sorcerers — developed a proposal: if the Old Gods' dreaming was the source of the power they had been extracting, a direct connection to an Old God would yield effectively unlimited power. Not an extraction through the Ley Lines but a direct tap, drilled through the Veil between the mortal sea and the old powers' realm.

They drilled it. The records of what happened in the next three hours were destroyed by what happened in the next three hours.

What the Cataclysm Actually Was

The Cataclysm is consistently described in the surviving fragments as a geological event — earthquakes, tsunamis, volcanic eruptions, the literal shattering of the continental landmass. This is accurate. What is less consistently understood is the mechanism.

The Urrathi didn't simply drill into an Old God's body. They drilled through the Veil, which is not a geological formation but a boundary — the barrier between the material world and the realm where the Old Gods fully exist. Drilling through it was the equivalent of puncturing a pressure vessel. The material world's relationship with what was on the other side of the Veil was not designed for direct contact. The violence of the resulting pressure equalization is what caused the earthquakes, the tsunamis, and the continental fragmentation.

The Old Gods were not angry. They were startled, in the way that a sleeping animal is startled when it is cut. Their reflexive response — not deliberate, not targeted, simply the physical consequence of the disturbance — generated an energy release that destroyed the Reaching Council's machinery, cracked the seabed along pre-existing fracture lines for thousands of miles in every direction, and created Yavarath from the energy of the wound itself.

The sea rose because the continental landmass collapsed. Whole sections of the old world, structurally undermined by the seabed fractures, simply fell into the spaces the fractures opened. The sea rushed in. Within two years of the Reaching, the supercontinent of the Urrathi was the archipelago of the Shattered Expanse.

The Cycle

The Tidecallers believe the Cataclysm was not unique. Their records contain references to a prior catastrophe — not as detailed, because it predates their own civilization — that has the same signature: a rapid extinction event, geological trauma, the submergence of a previous world order. They call this the Cycle: the tendency of sufficiently advanced civilizations to reach for the Old Gods' power and be destroyed by the attempt.

The Urrathi were not the first. The current age is the third documented attempt at rebuilding. The Tidecallers' entire existence is oriented around preventing it from being the last.

The Leviathan Cult's theology is the Cycle's dark mirror: they believe the Cycle is not a catastrophe but a process, the world periodically cleansing itself to make room for the Old Gods' next phase. They want to complete it.

The Curse System

How Supernatural Power Works

Curse in the Shattered Expanse is not a punishment. It is a relationship — a deal that someone or something struck with the world's deeper forces, and a deal that the world's deeper forces remember even when the person who made it has forgotten.

The sources of curse are multiple:

Urrathi Artifacts carry the power of a civilization that spent five hundred years extracting Old God energy into physical objects. That energy does not expire. Artifacts that were tools of the Reaching — power conduits, extraction equipment, the machinery of an entire civilization's hubris — are saturated with old power in ways that bleed into anyone who touches them over time. The artifact doesn't curse you maliciously. It simply continues doing what it was built to do: channel power, and the channeling changes what passes through it.

Drowned Court Contact can result in curse transfer. Not always, and not inevitably, but certain Drowned entities carry their curse conditions contagiously — a captain who spends too long in close proximity to a deeply afflicted Drowned entity may find that the boundary between their own life and the threshold state begins to thin.

Ley Line Exposure at high concentrations causes curse accumulation. The Ley Lines are not dangerous to sail over — they are too diffuse at the surface level for most captains to notice. But diving into the Drowned Reaches' ruins, working near the Ironclad Dominion's deep drilling sites, or spending too long in the Maelstrom's influence zone exposes a captain to concentrations of Ley Line energy that the human body was not designed to process.

Direct Old God Contact — through dreams, through the Veil's thin patches in the Drowned Reaches, or through the literal presence of the Obsidian Deep — creates the most powerful and most binding curses. These are not accumulation effects but direct inscriptions: the Old God's presence writes something into the captain that changes the relationship between the captain and the world permanently.

How Curses Work in Practice

Every curse in Salt & Steel follows the same structural logic: it grants something and it takes something, and the two halves cannot be separated. This is not a punishment structure — it is the universe's fundamental accounting system. Power added to a human system must be balanced by something. The universe uses curses to maintain that balance.

The Undeath Curse — granted by extended Drowned Court proximity or by certain deeply cursed Urrathi artifacts — makes the bearer technically unkillable through conventional means. Wounds close. Lethal damage does not fully land. But the bearer cannot truly rest, cannot feel the full register of physical sensation, and is visible to every supernatural entity in the world as what they have partially become: a person standing in the doorway of the Drowned realm. The power is real. So is the cost.

The Deep Sight Curse — most commonly acquired through Ley Line exposure — gives the bearer perception that extends below the visual surface. They see Ley Lines as patterns. They sense the presence of cursed artifacts before identifying them. They can perceive the Drowned Court when those entities are invisible to others. The cost: ordinary sensory experience is fractured. Colors are slightly wrong. Sounds carry overtones. The bearer lives in a world that is slightly more real than anyone else is ready for, and that additional reality is not comfortable.

The Sea Affinity Curse — granted by the Tidemother's direct attention or by certain Jade Fleet supernatural traditions performed incorrectly — lets the bearer breathe in water, navigate by Ley Line current without instruments, and communicate with aquatic creatures that would otherwise be incomprehensible. The cost: the bearer cannot be comfortable on land. The pull of the deep water is constant. Spending too many days away from the ocean causes a physical hunger that is not quite metaphorical.

The Memory Curse — the rarest and most sought-after by those who don't understand what it means — gives the bearer access to the memories of everyone who has died within a certain distance of them. History becomes immediately accessible: stand in a room where something terrible happened, and you know what it was. Touch an object and know who held it last. The cost: the bearer loses their own memories progressively. Each new memory absorbed costs something old. Captains who have held the Memory Curse for years know everything that happened to everyone around them and cannot remember their own name.

The Davy Jones Debt — what happens when a captain makes a direct bargain with the Drowned Fleet for power beyond what any natural process provides. The power is substantial: the Drowned Fleet can intervene in physical reality on behalf of someone it has a claim on, providing effects that look miraculous to outside observers. The cost is time. Not metaphorically. The bearer ages at an accelerated rate, years paid against the debt until the accumulated interest kills them on a schedule that was set at the moment of the bargain. Some captains make this bargain knowing exactly what it costs, calculating that what they can do in the time it buys them is worth the price. Some don't understand what they've agreed to until the aging begins.

Curse Accumulation and Removal

Curses are not binary. Most curse effects begin subtly and escalate with time and exposure. A captain who enters cursed waters once and leaves quickly may accumulate a trace of curse energy that causes minor perceptual distortion. The same captain who returns repeatedly, who collects cursed artifacts, who spends time in the Drowned Reaches without proper preparation, will find the effects deepening toward something transformative.

Curse removal requires equivalent exchange: the power that was taken into a person must be given somewhere else. Tidecaller cleansing rituals are the most reliable method — they use Ley Line knowledge to route the curse energy back into the deep current system, which can absorb it without consequence. Lighthouse Keeper stations can perform a different kind of removal, using the beacon's energy to burn out the curse — effective but not gentle. The Drowned Court can sometimes remove curses by renegotiating the terms — but what they want in exchange is another deal, and deals with the Drowned Court have their own consequences.

Sea Monsters: Taxonomy

Design Principle

Every sea creature in Salt & Steel has a face. Not necessarily humanoid — but a face in the sense of an expression, an attitude, a quality of being that communicates something about the creature's nature and experience. The giant squid's mantle should show what it is feeling. The sea serpent's eyes communicate something — malice or hunger or a cold intelligence. Even minor creatures should read as individuals rather than units.

Creatures are organized by zone and nature. Not all of them are hostile. Not all of them are supernatural. The taxonomy below establishes the world's creature logic.

Surface Creatures

The Pelagic Drakes

Not true dragons — the sea dragon title is reserved for the Jade Currents entities, which are something different. Pelagic Drakes are large reptilian creatures that live in the open Ember Seas, warm-blooded enough to maintain body temperature in tropical waters, with flattened tails for marine locomotion and vestigial wing-membranes that function as stabilizing fins. They average fifteen to twenty feet in length and are genuinely dangerous to small boats. They have personalities — territorial and curious in approximately equal measure, with the ratio determined by whether a ship approaches their territory or their preferred feeding ground. Hunting one for its hide (exceptional material quality) and the bone structure of its fin-membranes (unusual alchemical properties) is early-to-mid game content.

Whale Pods

Non-hostile by default, substantial enough that collision is a genuine concern, and present throughout the deeper sea lanes. The whale species of the Shattered Expanse include several that do not exist in natural history: the Songwhale, whose vocalization patterns carry harmonic content that Tidecallers can read for navigation information; the Ironback Whale of the Frozen Straits, whose skin is calcified into something approaching scale and who the Järnvolk hunt as a rite of passage; and the Deep Diver, whose breath-holding ability allows it to reach depths where Ley Line current concentrations affect its physiology in ways that make its oil a potent ingredient in supernatural preparations.

The Luminous Medusae

Jellyfish in the broad sense, but supernatural in degree. During bloom conditions — seasonal, concentrated in the Ember Seas — Luminous Medusae carpet the surface water in concentrations that make the sea itself appear to glow electric blue-green. This is one of the world's genuinely beautiful things. The Medusae in bloom are harmless to ships and to swimmers who avoid contact with the tentacles. The visual effect of sailing through a full bloom at night — the ship's wake blazing with disturbed light, the glow extending to the horizon in all directions — is one of the moments Salt & Steel is designed to make players stop and look.

In non-bloom conditions, singular Medusae are minor hazards for swimming operations. At the edge of bloom conditions, when the density is medium, they can entangle rigging. And at the deepest layers of the ocean, where the bioluminescence serves purposes unrelated to what sunlight creatures evolved it for, some Medusae develop size and characteristics that make "harmless" no longer accurate.

Deep Creatures

The Kraken

The Kraken is the largest creature with confirmed existence in the Shattered Expanse — not a myth, not a legend expanded from something smaller, but a genuine biological entity of extraordinary scale. Adult Krakens reach lengths of two hundred feet or more, with tentacles extending beyond that. They are not supernatural in origin — they are the natural result of deep-sea gigantism, aided by the Ley Line energy in the water column they inhabit, which promotes growth in ways that shallow-water creatures don't experience.

Juvenile Krakens — twenty to fifty feet — are mid-game boss encounters. Adult Krakens are endgame encounters that require a fully equipped ship and crew and still constitute a genuine threat. The largest Kraken ever documented — killed by a Jade Fleet admiral three hundred years ago, the event recorded in their chronicles — was estimated at four hundred feet from mantle tip to tentacle end.

Krakens have complex behavior. They are territorial, intelligent enough to learn from interactions (a Kraken that lost a fight with a ship will behave differently toward ships matching that profile in future encounters), and they have something approaching social structure — not in groups, but in the sense that their territorial ranges seem to be negotiated through chemical signals that leave traces in the water column for months. A captain who can read those traces can navigate around Kraken territories instead of through them.

The Sea Serpent

Sea Serpents are the apex predators of the open water — not in size (they average sixty to one hundred feet, smaller than Krakens), but in hunting efficiency. They are warm-blooded, fast, and they operate in the zone between the surface and the deep water, which means they encounter ships regularly. A Sea Serpent in hunting mode is the most dangerous creature in the Ember Seas because it is fast enough to overtake most ships, persistent enough to continue an attack through significant damage, and intelligent enough to target vulnerable points — oar banks, steering mechanisms, anything below the waterline that can be reached by a powerful body.

Sea Serpents are also beautiful, which is relevant because the game's visual language dictates that the beautiful and the dangerous coexist. Their scales produce iridescent color patterns that change with mood and activity — calmer Serpents show deep blues and greens; Serpents in hunting mode shift to orange and crimson. This is both aesthetically extraordinary and practically useful: a color-shift that makes the creature more visible is nature's guarantee that the encounter is about capability, not ambush. Sea Serpents don't hide. They don't need to.

The Abyssal Bestiary

The Obsidian Deep's creatures are categorically different from surface and deep creatures. They exist in proximity to the Old Gods' presence and are shaped by that proximity in ways that make them closer to supernatural phenomena than biological entities.

The Hollow

Not creatures in any comfortable sense. The Hollow are what happens when a living creature spends long enough in the Obsidian Deep that the Old God energy permeating its cells gradually replaces what was there before. The process takes decades for large creatures; the result is something with the shape and some of the behaviors of the original creature, but with the interior replaced by a sustained channel of Old God energy. The Hollow move like living things, hunt like living things, and are almost impossible to kill through conventional means because they do not have biology in the standard sense — what looks like wounding is actually temporary disruption to an energy system that reconstitutes quickly.

The Hollow include examples of every major creature type in the deep sea. There are Hollow Krakens — the most dangerous creatures in the game — and Hollow Serpents, and things that suggest once-human sailors who descended too far and were converted.

The Dreamsong

A phenomenon rather than a creature, but experienced by sailors as creature-like: a sound from the deep water that creates hallucinations. The Dreamsong is the Old God energy expressing itself acoustically through the water column — it is, in the most literal sense, the Great Sleeper dreaming and the dream seeping upward. Ships that pass through a Dreamsong zone experience crew members hallucinating lost loved ones, lost ports, events from their personal histories. The hallucinations are specific and personal. They are also completely accurate — the Dreamsong doesn't invent; it extracts. The ship's crew experiences real memories from real lives, presented without context or warning.

The Dreamsong is dangerous because affected crew members lose their ability to function. A ship with its entire crew lost in hallucination is a ship that cannot sail. The captain must navigate through the zone with whatever awareness remains, managing affected crew members and resisting the Dreamsong's attention on their own memories.

Ghost Ships and the Drowned

The Drowned

The Drowned are the individual entities of the Drowned Court — former living people, caught in the threshold between the mortal world and the realm of the dead. Each Drowned entity has a story: why they were caught, what compulsion holds them, what unfinished business keeps them from passing through the Veil.

Engagement with the Drowned requires understanding their individual story. A Drowned captain pursuing a ship will be pursuable — their obsession has a logic, and the logic can be understood, exploited, or resolved. A Drowned navigator trying to chart a passage that doesn't exist anymore is navigable — they have knowledge of the old world's geography, and they'll share it with someone who helps them complete the chart.

Not all Drowned are passive or cooperative. Some were violent in life and remain so; the compulsion that holds them is the violence itself. Some have been Drowned long enough that their individual identity has dissolved into something that is mostly Drowned Fleet — vast, impersonal, incapable of negotiation. These are the most dangerous encounters with the Drowned Court: not because they're powerful (though they are) but because there is nothing to negotiate with.

Ghost Ships

Ghost ships in the Shattered Expanse fall into several categories, each with different encounter logic:

The Unburied — ships that sank with something incomplete aboard. The ship and its cargo exist in a partial state: visible, tangible in some conditions but not others, its material presence waxing and waning with the tides and the Ley Line state. Boarding an Unburied ship is possible during windows of material coherence; the windows close without warning. What remains in those windows is a ship frozen at the moment of its loss — the crew gone, the cargo and navigational records intact, and frequently the evidence of what killed it.

The Pursuing — ships bound to a specific compulsion, sailing toward a target that may or may not still exist. The most famous of the Pursuing ships is the Ironsail, which has been documented pursuing a specific navigational route for over one hundred years — a route that led to the location of its captain's murderers, who have been dead for ninety of those years. The Ironsail is still looking. It cannot stop. Ships that cross its route at the wrong time have been known to join it involuntarily.

The Dutchman Ships — a specific category, named for the ancient maritime legend of the Flying Dutchman. These are ships whose captains made deals with the Drowned Fleet and paid the consequences: bound to the sea forever, crewed by the Drowned, unable to make port in the living world. The captain of a Dutchman Ship is fully aware of their situation, which is what makes them different from other Drowned Court entities. They chose. The choice was made in ignorance, usually — the deal seemed reasonable at the time — but it was made. This awareness creates a specific tragic quality in Dutchman Ship encounters: the captain can be spoken with, can be reasoned with, is fully articulate about their situation and how they got there.

The Maelstrom

The Maelstrom is the world's most dangerous place and its oldest wound. It sits at the center of the Storm Wastes, and the Storm Wastes' permanent weather system is, in the Tidecaller understanding, the Maelstrom's atmosphere: the visible expression of what the Maelstrom is doing to the local reality.

The Maelstrom is not simply a powerful storm. It is the location where the Reaching's explosion created the first and deepest crack in the Veil — where the Old God energy released by the Urrathi's drilling poured through and has been pouring through for two thousand years. The storm is what that energy does when it meets the mortal world's atmosphere. The permanent hurricane is the visible surface of an invisible wound.

Within the Maelstrom's eye — accessible only to those who can navigate the storm bands surrounding it — the reality distortion is severe. The Veil is thin enough that Drowned entities appear in full daylight. Ley Line currents are visible to the naked eye, appearing as columns of light in the water. Time behaves strangely: ships have entered the Maelstrom's eye and emerged to find that they aged years in what felt like hours, or emerged with their crew inexplicably young. The Maelstrom is not consistent in what it does; it is consistent only in the fact that it does something.

At the center of the Maelstrom's eye, at the deepest point of the storm system, is the physical location of the original Reaching drill site: the hole in the seabed where the Urrathi machinery penetrated the Veil, surrounded by ancient Urrathi structures (preserved by the same supernatural energy that powers them) and by the accumulated detritus of two thousand years of the world's dangerous objects being drawn toward the wound. The Sunken Crown believes more than one legendary artifact is in there. The Tidecallers believe the hole can still be made worse and are deeply concerned about anyone who tries.

Artifacts of the Old World

The Urrathi Inheritance

The Urrathi built with permanence. Their materials — alloys that do not corrode, stone treated to be impervious to pressure, devices whose mechanisms do not require the power sources they were designed for to remain in operational readiness — survive in the ruins across the Shattered Expanse in a state that would be remarkable even without the supernatural energy saturating them.

Every Urrathi artifact carries some degree of curse charge. The smallest items — everyday tools, personal objects — carry negligible charge that a healthy person processes without noticing. Larger items — devices built for the power infrastructure, components of the extraction machinery, weapons — carry charges that have measurable effects on anyone who handles them regularly. The largest artifacts, and especially any component of the Reaching itself, are genuinely transformative: holding one changes the person holding it.

Artifact Taxonomy

Navigational Artifacts

The Urrathi navigated using the Ley Lines actively — not by reading them passively like the Tidecallers, but by having instruments that interfaced directly with the Ley Line current and computed position, heading, and weather from it. These navigational devices are among the most sought-after artifacts precisely because they work better than anything the current age has developed, and their curse charge is relatively low (they were designed for regular human use).

The Compass of Desire — a navigational artifact that points toward what the bearer most wants rather than north — is a specific Urrathi device that has appeared in a dozen different legends across the Expanse. Whether these legends describe the same object or different versions is debated. The device works. The problem is that what you most want is not always what you most need, and the Compass doesn't distinguish.

Weapons

Urrathi weapons are exceptional. The materials are better than anything produced in the current age. The enchantments — Old God energy expressed as weapon characteristics — are not replicable. Urrathi blades hold an edge without maintenance. Urrathi firearms (they had something analogous, though the mechanism was different from gunpowder) reload through a mechanism that draws on the bearer's own Ley Line sensitivity rather than on external ammunition.

The curse charge in Urrathi weapons is moderate and specifically oriented: the weapons want to be used. Captains who carry Urrathi weapons and don't use them in combat experience a slow accumulation of restlessness that borders on compulsion. Captains who use them regularly find their combat capability exceptional and their patience for non-combat resolution of conflicts diminishing.

Power Infrastructure

The most dangerous category. The devices the Urrathi used to extract Ley Line energy from the deep are still, technically, operational — they were built for that purpose, they remain configured for it, and any source of Ley Line energy that comes near them will be drawn through them according to their design. The Ironclad Dominion has been finding these devices and, rather than decommissioning them, figuring out how to integrate them with their own technology. The Tidecallers regard this as the most dangerous thing currently happening in the world.

Legendary Artifacts: Named Items

The Compass of Desire — described above. Points toward the bearer's deepest want. The nature of what it reveals has driven multiple previous bearers to madness, enlightenment, or actions that looked identical from the outside.

The Chart of Drowned Cities — a navigational document, written on material that resists all attempts at decay, showing the locations of Urrathi cities as they existed before the Cataclysm. Several of these cities are now accessible in the Drowned Reaches, but most are at depths impossible for current diving technology. The Chart is, among other things, a map to places that don't exist above water anymore.

The Ironsong Bell — a device that, when rung, causes every Drowned Court entity within hearing range to stop and attend. Not control — the Bell doesn't command — but compels attention in a way that creates a window. The Leviathan Cult has been looking for this item for decades. The Lighthouse Keepers claim it doesn't exist. Neither response is entirely honest.

The Hand of the Reaching — a fragment of the actual drilling apparatus used in the Reaching, recovered from the Maelstrom's eye by the only Sunken Crown expedition to have made it in and back out. The fragment is approximately the size of a fist. Its curse charge is so high that the case built to contain it is itself becoming cursed. Its power — if channeled — is equivalent to a localized Ley Line vent. What it would do if brought back to the original drill site has been the subject of theoretical work among Sunken Crown scholars, Tidecaller elders, and Leviathan Cult leadership simultaneously, all of whom have different ideas and different concerns about the answer.

Prophecies and the Player's Role

The Three Remaining

The Jade Fleet's three-thousand-year-old prophetic text — called The Account of What Comes After in the most literal translation — describes a period of increasing Old God activity, a faction working to complete the Cataclysm, and three events that must occur in order for the cycle to be broken rather than completed.

The Account describes the three events in terms so oblique that two thousand years of scholarship have not fully decoded them. What the Jade Fleet's current leadership understands:

Something must be returned to the Maelstrom that was taken from it.
Someone must speak the true name of the Unnamed to the Drowned Fleet and have it acknowledged.
A captain must close what was opened — the phrase in the original language implies a door, or a wound, or both simultaneously.

The Jade Fleet has been guardedly preparing for this period for centuries, which is why they have the three-thousand-year records to begin with: they knew, in principle, that it was coming, and they preserved the information that might be relevant when it arrived.

Why the Player Captain Matters

Salt & Steel's player character is not the Chosen One in any magical sense. There is no destiny, no special bloodline, no supernatural selection. The player captain matters for a different and more interesting reason: they are the kind of person who is in the right places at the right times because they are the kind of person who goes everywhere, fears nothing, and does what needs to be done when everyone else is still arguing about whether it needs to be done.

The three conditions described in the Account require a captain who has:

Sailed far enough to know what was taken from the Maelstrom (requiring the Storm Wastes content)
Communicated deeply enough with the Drowned Fleet to know the Unnamed's true name (requiring the Drowned Reaches and Obsidian Deep content)
Understood the Ley Lines well enough to close a Veil fracture (requiring the Tidecaller content)

The player becomes the person who can complete the Account's conditions not through destiny but through curiosity: they explored, they learned, they built the relationships and accumulated the knowledge that make them the only captain who can do this when the moment arrives.

The moment arrives in the Obsidian Deep expansion's conclusion. What the player does with it is the culmination of the entire game's narrative — and the outcome of their choices, good or bad, shapes what the Shattered Expanse looks like for the next age.

The Veil

The Barrier Between Worlds

The Veil is the boundary between the material ocean — the world where ships sail and captains live and creatures hunt and die — and the realm where the Old Gods fully exist, where the Drowned go when they pass through, where the deep reality of the Shattered Expanse is located. It is not a physical barrier in the sense that a wall is physical. It is more like the surface tension of water: present, functional, and structurally meaningful even though you can't see it directly.

Before the Cataclysm, the Veil was intact and stable. The Reaching drilled through it in one place. That hole — the Maelstrom — has been leaking ever since, and the leaked material is everything the supernatural world of the Shattered Expanse actually is: the Ley Lines, the curse energy, the Drowned Court's existence, the sea monsters' anomalous scale and intelligence, the bioluminescence that is partly biological and partly something older. Two thousand years of leakage have made the Veil's condition in the Shattered Expanse substantially more permeable than it was designed to be.

The Lighthouse Keepers' beacon network functions partly as a patching system — the beacons reinforce the Veil in the sea lanes around them, maintaining local stability. This is why sailors who stay in the beacons' range feel more comfortable and see fewer supernatural anomalies than those who sail into the deep. It's not the light. It's what the light does to the Veil.

Thin Points and Thick Points

The Veil is not uniformly permeable. Its thin points are where the most supernatural activity concentrates:

The Maelstrom (thinnest; the original wound)
The Drowned Reaches' ruins (thin because the drowned civilizations left residual energy)
The Obsidian Deep's trenches (thin by proximity to Old God presence)
Any location where Urrathi power infrastructure is active (actively maintained thin points)

Its thick points are where the Lighthouse Keepers' network is strongest, where the Tidecallers maintain active reinforcement rituals, and where the Ley Lines run deep and stable rather than active and disruptive. The Frozen Straits, paradoxically, have some of the thickest Veil sections in the world, which is why their supernatural phenomena are stranger and rarer than in the Ember Seas — the energy that does come through has traveled further to do it.

Ley Lines of the Deep

The World's Nervous System

The Ley Lines of the Deep are magical currents that run beneath the ocean, roughly analogous to the planet's magnetic field lines but driven by the Great Sleeper's dreaming rather than by geological dynamics. They connect the Obsidian Deep's deepest trenches to the surface world through complex branching patterns that the Tidecallers have spent centuries mapping and that the Jade Fleet's navigators have used for three thousand years.

The Ley Lines are not uniform. They vary in intensity (from barely detectable traces to deep main currents that affect compass bearings), in type (some carry primarily curse energy; others carry the cleaner power that the Tidecallers use for their rituals), and in stability (some are constant; others pulse, reverse, or shift seasonally).

The Ironclad Dominion's seabed operations are disrupting the Ley Line network in ways that the Tidecallers can measure and that the Dominion's engineers have been aware of for decades. The disruption is not uniformly bad — some disrupted lines have produced useful concentrations of artifact-grade curse energy that the Dominion has profitably extracted. But the cumulative effect on the network is a general increase in instability: lines that were stable are developing pulse variations; lines that were minor are intensifying; and in several locations, previously unknown lines have become active, which the Tidecallers regard as the Ley Line equivalent of a wound beginning to bleed.

The Tidecallers' navigational practice uses the Ley Lines as a positioning system more accurate than celestial navigation in many conditions. A trained Tidecaller navigator can feel the local Ley Line character — its direction, intensity, and type — and use that information the way a bird uses magnetic field lines: as an absolute directional reference that remains meaningful even when visibility is zero, when stars are occluded by cloud, and when magnetic compasses are locally unreliable due to Urrathi artifact interference.

The Jade Fleet's navigational advantage in the Jade Currents region is partly this: the Jade Currents are named for deep Ley Line currents running through that region that are measurably distinctive, and the Jade Fleet's navigators have been using those specific currents for three thousand years. Their charts are not just geographical — they map the Ley Line network beneath the geographical surface, which is why Jade Fleet ships can sail routes that other navigators cannot reliably follow.

See also:
World Overview — the geography these forces inhabit
Factions & Civilizations — the organizations that interact with these forces
History & Timeline — how the supernatural history developed
Creative Identity — the tone within which all supernatural elements must operate