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Karakia 503 of the Orbiting Vessel

—

by

Dale
in

Lore: Created during the early transition into the Industrial Age, when cloud cities and high-altitude airships began reaching for the void at the edge of the atmosphere, this specialized bioastronautics focal rig was engineered by an astro-technomancer on the island nation of Archaic. The creator realized that living organisms, spellcasters, and draft animals transported beyond the dense atmosphere suffered severe physical shock, disorientation, and pressure sickness. By binding ancient Polynesian chants of protection, physical stabilization, and spatial orientation into a pressurized brass lung diaphragm, the bioastronautics rig allowed high-altitude pilots and void-scouts to maintain vital bodily functions and physical equilibrium in extreme atmospheric thresholds.

Description: Karakia 503 of the Orbiting Vessel is a compact chest harness mounted with a polished brass pressure-diaphragm, copper breathing tubes, and an internal crystal glass capsule. Intricate spiral wind runes, star-chart constellations, and pulmonary cellular patterns are deeply etched into the brass casing. A small, fluted mouthpiece allows the wearer to chant directly into the internal diaphragm, causing the internal crystal and copper tubes to glow with a steady, atmospheric blue light that stabilizes the user’s respiration and physical mass in thin or hostile air.

Detailed Stats

  • Item Rank: Common
  • Tier Level: Tier 1
  • Target Avatar Tier: Tier 1
  • Gear Slot: Chest Slot
  • Attunement Type: Simple Attunement (1 minute of vocal tuning while adjusting the pressure valves)
  • Item Armor Check (AC): 1
  • Item Resilience: 10
  • Item Health Points: 10 plus maximum avatar health points
  • Mass: 2.0 pounds
  • Ranged Usage: Simple (Self / 10 feet aura)

Passive Magics

  • Life-Support Stabilization: While wearing and attuning the chest rig, the avatar gains continuous biological regulation, granting immunity to extreme high-altitude pressure sickness, hypoxia, and environmental freezing temperatures at the edge of the atmosphere.
  • Gravitational Grounding: Provides a steady physical center of gravity, granting advantage on saving throws and balance checks made to resist being disoriented, knocked prone, or thrown off balance by sudden gravity shifts or rapid altitude drops.
  • Environmental Breath Envelope: Creates a continuous, thin bubble of recycled breathable air around the avatar’s face, preventing the inhalation of toxic high-altitude vapors, thin gases, or airborne spores.

Activable Magics

  • Incantation of Vital Pressure (Normal Chant): By reciting a brief three-line karakia directly into the mouthpiece while adjusting the brass diaphragm valve (taking less than 6 seconds as an action), the user stabilizes their physical circulatory system. The avatar gains 5 temporary health points for 10 minutes.
  • Chanted Sphere of Void Protection (Ritual Chant): The avatar recites an extended bioastronautics karakia continuously for greater than 6 seconds while expanding the copper breathing valve. This projects a 10-foot shimmering pressure barrier around the avatar and up to three nearby companions. The barrier provides +2 temporary Armor Check against atmospheric turbulence, kinetic debris, and high-altitude winds for up to 1 hour or until hit.
  • Pulse of Decompression Force (Silent Release): The avatar manually depresses the main pressure plunger without vocalizing a word, discharging a compressed burst of stored atmospheric force from the chest rig. Because this spell is cast silently without verbal chanting, its magic damage or impact force is reduced by 25%, dealing base force/atmospheric damage plus 1d4 tier damage to targets within 5 feet and pushing them back 5 feet.

Tags: Karakia, Tier 1, Common, Gear, Chest Slot, Bioastronautics, High-Altitude, Life-Support, Pressure, Atmospheric, Respiration, Void, Archaic, Tech-Magic, Attunement, Aviation, Pneumatic, Oxygen, Vacuum, Altitude, Capsule, Harness, Microgravity, Compression, Circulation, Diaphragm

Acquisition and Commerce of Karakia 503 of the Orbiting Vessel

  • Aero-Dock Outfitters and Zeppelin Engineering Yards Located within high-altitude launching bays, cloud city skyports, and military airship docks across major island state capitals, these specialized workshops serve high-altitude pilots, cloud-couriers, and void scouts. Master technomancers and pneumatic engineers in these docks calibrate the diaphragm valves to handle extreme pressure drops. Purchasing Karakia 503 of the Orbiting Vessel directly from an aero-dock outfitter costs 16 silver pieces. If the buyer holds active membership in the local Aeronauts or Explorers Guild, they receive a 10% discount per character tier, reducing the price to 14 silver pieces and 4 nickel pieces for a tier 1 avatar. These shopkeepers will buy a functional chest rig from an avatar for approximately 1 silver piece and 6 nickel pieces, logging the transaction details in their station registry for official safety inspections.
  • High-Altitude Waystations and Mountain Peak Trade Posts Found in elevated mountain passes, floating market barges, and high-altitude weather observatories, these isolated general stores stock specialized cold-weather supplies, climbing gear, and basic pneumatic tools. Because access to life-support gear is critical in these hazardous high-altitude zones, shopkeepers adjust the price based on local weather severity, airship traffic, and shipping costs. Buying this item at a mountain waystation costs between 22 silver pieces and 32 silver pieces depending on the elevation and remoteness of the island state. These family-run outposts operate strictly on a buyer beware basis and will haggle when purchasing the item from adventuring party members, typically offering around 1 silver piece per tier of the seller.
  • Black-Market Skyport Dens and Smuggler Haven Docks Hidden within uncharted floating islets or secret atmospheric smuggling platforms outside municipal government oversight, black-market fences trade in unregistered high-altitude equipment, stolen airship gear, and illegal void-scouting artifacts. All transactions require direct hand-to-hand exchange of physical gold coins, bypassing the World Bank completely. Purchasing Karakia 503 of the Orbiting Vessel through black-market channels costs a flat fee of 2 gold pieces and 8 electrum pieces with no guild discounts applied. Sellers offering the chest rig to a black-market fence will receive up to 3 silver pieces if the fence has an immediate buyer operating in high-altitude runs, and the fence will keep the origin of the inventory completely secret from local city guards or naval airship captains.

Tactical Roleplay Applications in Diverse Environments

  • Paved City Streets and Crowded Guild Districts In the bustling street-level markets and low-altitude districts of major city capitals, Karakia 503 of the Orbiting Vessel serves as a surprisingly versatile tool for managing urban chaos and sudden vertical ambushes. When taking a defensive posture in dense crowds or narrow city streets, an avatar uses the item’s passive life-support and breath envelope to remain completely immune to tear gases, smoke bombs, or toxic alchemical fumes deployed by city guards or rival guilds. If thrown from a tall guild tower or rooftop during a rooftop chase, the avatar performs a rapid normal chant into the mouthpiece; the sudden calibration of internal pressure grants temporary health points and cushions the impact upon landing. For offensive maneuvers in urban skirmishes, the avatar depresses the pressure plunger to trigger a silent release. By stepping into close quarters with an enemy assassin, the user discharges a compressed pulse of atmospheric force directly from the chest rig, dealing force damage and shoving the attacker 5 feet backward into alleyway obstacles or off building ledges.
  • High-Altitude Cloud City Cable-Bridges and Open Void Ships Along the exposed gangplanks of high-altitude airships, floating cloud-city docks, and open-air void vessels, the environment poses immediate threats from vacuum exposure, freezing temperatures, and thin air. Defensively, an avatar operating in these extreme atmospheric zones relies on the passive life-support stabilization to breathe comfortably and resist freezing temperatures without wearing bulky thermal gear. When hit by violent gale-force winds or sudden dragon-wing squalls on a narrow cable-bridge, the avatar enters a ritual chant. This projects a 10-foot shimmering sphere of void protection around themselves and up to three deckhands, shielding the crew from kinetic atmospheric debris and preventing anyone from being blown into the abyss below. Offensively, during ship-to-ship boarding actions in the upper atmosphere, the avatar can use the decompression pulse to clear enemy boarders off the ship’s rigging. Directing the chest rig toward a group of hostile sky-pirates, the user releases a silent wave of stored pressure that knocks targets off balance, forcing them to make immediate balance checks or fall from the cloud-ship’s deck.
  • Subterranean Cave Systems and Industrial Steam Tunnels Deep within pressurized subterranean mine shafts, volcanic vents, and high-pressure steam pipe conduits, the environment presents hazardous gas buildups and sudden thermal drops. On the defensive side, the avatar uses the item’s environmental breath envelope to walk safely through pockets of odorless subterranean methane or heavy sulfur gas without suffocating. If a steam pipe bursts or a geothermal vent ruptures in a tight stone shaft, the user performs a rapid normal chant into the brass mouthpiece to stabilize their internal circulation and gain temporary health points against the extreme ambient heat and pressure spikes. Offensively, the enclosed geometry of stone tunnels amplifies the impact of the chest rig’s stored atmospheric pressure. The avatar can charge the diaphragm using a ritual chant in a tight corridor and then release a silent decompression pulse down the narrow shaft, knocking aggressive subterranean beasts or cave-dwellers backward into rock walls or deep pit traps.

Perception of Activation:

  • Sight
    • User’s Perspective: The brass pressure-diaphragm and copper breathing tubes ignite with a luminous sky-blue glow, causing the etched star-chart constellations and pulmonary runes to shine brightly across the chest harness. The internal crystal capsule pulses with an intense atmospheric blue light that casts a steady halo around the user’s upper body.
    • Observer’s Perspective: Onlookers witness a bright sapphire-blue light burst from the center of the operator’s chest, casting sharp, starry geometric patterns against surrounding cloud banks, airship decks, or dark tunnel walls.
    • Positives: Provides clear visual illumination in dark void-capsules, night skies, or subterranean shafts, ensuring immediate visibility for crewmates.
    • Negatives: The vivid atmospheric blue flare makes the user instantly recognizable across long distances, eliminating any chance of stealth.
  • Hearing
    • User’s Perspective: A soft, rhythmic hiss of rushing pressurized air echoes through the fluted mouthpiece directly into the user’s ears, perfectly synchronized with their breathing and vocal chants. As the chant continues, the tone shifts into a low, metallic chime that clears internal head pressure.
    • Observer’s Perspective: Bystanders hear a steady, rhythmic mechanical hiss akin to a pneumatic steam valve, accompanied by the echo of the wearer’s amplified, reverberating voice.
    • Positives: The audible hiss provides clear feedback that the oxygen regulation system is active and functioning smoothly.
    • Negatives: The continuous pneumatic hiss and vocal amplification can alert sharp-eared enemies in quiet or stealth-critical environments.
  • Touch
    • User’s Perspective: A firm, supportive contraction squeezes gently across the user’s torso as the harness calibrates to their body. Simultaneously, a cool, refreshing stream of pressurized air flows across the throat and face, accompanied by a slight weightless sensation in the limbs.
    • Observer’s Perspective: Those standing nearby feel a faint, cool breeze radiating outward from the user’s chest, along with a subtle drop in surrounding ambient air pressure.
    • Positives: The physical pressure stabilizes internal circulation, preventing nausea, dizziness, or blackout from rapid altitude shifts and gravitational drops.
    • Negatives: The continuous harness compression can feel slightly restrictive across the ribcage during long, exhausting physical sprints.
  • Smell
    • User’s Perspective: The air drawn through the mouthpiece tastes and smells crisp, cold, and remarkably pure, carrying a distinct scent of high-mountain ozone, frost, and polished metal.
    • Observer’s Perspective: Bystanders catch a brief whiff of cold mountain air and fresh atmospheric ozone that momentarily clears away local foul odors, smoke, or stale ship air.
    • Positives: Completely masks toxic fumes, smoke, or noxious gases in hazardous testing environments.
    • Negatives: The distinct high-altitude ozone smell can be detected downwind by trained tracking beasts or aerial predators.
  • Taste
    • User’s Perspective: A refreshing, metallic dryness resembling cold spring water or morning dew settles on the back of the tongue as the bioastronautics karakia is spoken into the mouthpiece.
    • Observer’s Perspective: Observers do not taste the activation directly, though anyone caught in a decompression wave reports a momentary static dryness on their lips.
    • Positives: Encourages steady, rhythmic breathing that reduces hyperventilation during high-stress aerial maneuvers.
    • Negatives: Continuous vocalization into the air stream can cause a dry throat over prolonged periods without access to a canteen.
  • Mind’s Eye Perception
    • User’s Perspective: The user perceives an overlay of vital quantitative data floating in their mind, displaying real-time updates on internal oxygen levels, external barometric pressure, current altitude, and gravitational stability.
    • Observer’s Perspective: Individuals focusing their Mind’s Eye on the item perceive a distinct Tier 1 gear matrix expanding, displaying the chest rig’s structural resilience, remaining health points, and active pressure threshold.
    • Positives: Grants the avatar immediate, un-degradable awareness of their biological condition and environmental pressure hazards.
    • Negatives: Processing continuous streams of atmospheric data during intense combat can briefly distract an inexperienced pilot.
  • True Sight Perception
    • User’s Perspective: Viewed through True Sight, brilliant azure threads of atmospheric magic stream into the copper tubes, forming a visible spherical pressure envelope that wraps tightly around the user’s lungs and chest cavity.
    • Observer’s Perspective: Mages observing through True Sight see a glowing blue web of arcane weave converging into the brass diaphragm, expanding into a protective, pressurized energy barrier around the user.
    • Positives: Allows the user or allies to visually confirm the exact boundary, thickness, and integrity of the life-support envelope in low-visibility or void conditions.
    • Negatives: The bright magic-crystalline radiance can be blinding to entities relying solely on True Sight for navigation.
  • Soul Sight Perception
    • User’s Perspective: The user senses a warm, rhythmic connection binding their physical breath to the spiritual core of the item, feeling their vitality circulate in step with the diaphragm’s mechanical movement.
    • Observer’s Perspective: Observers using Soul Sight see a vibrant, pulsing blue tether connecting the avatar’s spiritual chest aura directly to the brass crystal housing.
    • Positives: Reaffirms the spiritual harmony between the avatar’s life force and their life-support apparatus, enhancing physical endurance.
    • Negatives: If the chest rig sustains heavy structural damage, the sudden disruption of the soul connection causes a jarring physical shock to the user’s lungs.

Crafting Recipe: Karakia 503 of the Orbiting Vessel

Materials Needed

  • 1 brass pressure-diaphragm casing (pre-bored with etched star-chart runes)
  • 2 flexible copper breathing tubes (high-purity copper, 1.5 feet each)
  • 1 reinforced leather chest harness (tanned with weather-resistant oils)
  • 1 glass capsule reservoir (heat-resistant, high-pressure glass)
  • 1 Tier 1 Magic Crystal (coin-sized, harvested from an aerial or atmospheric creature)
  • 1 fluted brass mouthpiece assembly
  • 2 drams of pneumatic sealing resin (alchemically refined sap bond)

Tools Required

  • 1 precision rune-carving chisel set
  • 1 miniature steam-powered soldering iron
  • 1 tube-bending mandrel and pipe crimper
  • 1 pressure-calibration hand pump
  • 1 artisan leather-stitching awl and needle set

Skill Requirements

  • Pneumatic Engineering / Tech-Magic: Skill Level 6 (Minimum skill level 5 plus 1 for Tier 1 output)
  • Leatherworking & Harness Fabrication: Skill Level 5
  • Arcane Engraving / Runecrafting: Skill Level 6

Crafting Steps

  • Step 1: Harness Assembly and Casing Plate
    • Cut and stitch the reinforced leather straps using the artisan awl to form a snug chest harness with adjustable shoulder and rib fastenings.
    • Mount the central brass pressure-diaphragm plate onto the chest panel of the harness, securing it with double-riveted steel studs.
    • Fit the fluted brass mouthpiece onto a flexible neck-joint extension anchored to the upper left shoulder strap.
  • Step 2: Tube Shaping and Valve Alignment
    • Using the tube-bending mandrel, shape the two flexible copper breathing tubes so they curve smoothly from the brass mouthpiece down into the sides of the central diaphragm casing.
    • Install internal pressure valves at both tube junction points to regulate bi-directional airflow during respiration.
    • Insert the glass capsule reservoir into the center of the diaphragm housing, lining its seat with pneumatic sealing resin.
  • Step 3: Crystal Matrix and Rune Engraving
    • Place the coin-sized Tier 1 Magic Crystal into the hollow chamber of the glass capsule reservoir.
    • Using the precision chisel set, hand-carve spiral wind runes, pulmonary flow symbols, and star-chart constellations along the face of the brass diaphragm plate and copper tube joins.
    • Solder the copper tube mounts to the brass housing using the miniature steam soldering iron, sealing all pressure seams with pneumatic resin.
  • Step 4: Pneumatic Calibration and Vocal Attunement
    • Connect the pressure-calibration hand pump to the mouthpiece intake and pressurize the internal chamber to baseline atmospheric conditions.
    • Strap the completed harness onto a testing mannequin, don the mouthpiece, and recite a three-line bioastronautics karakia continuously for 20 minutes while breathing steadily into the system.
    • Observe the internal crystal and copper tubes; when the runes glow bright sky-blue and the diaphragm emits a soft, steady pneumatic hiss upon breath intake, the crafting process is complete and ready for simple attunement.

Legend of Sky-Lung Vessel

In the days before the long ago times, when the sky-island of Archaic had not yet floated up into the clouds and the big sea giant planet was still close to the sun, there lived a man who did fly in the high air. His name in the old parchment is written as The Stargazer of the High Wind, but sometimes the poorly educated scribes do call him The Breath-Holder of the Flying Ship.

He did travel in big balloons of boiled silk and iron cages into the cold places above the mountains where the clouds do go to sleep. In those ancient years, the upper air was thin like water poured into dust, and many sailors of the sky did fall into sleep-sickness, turning blue in the face and falling from their seats into the deep ocean below. The Stargazer of the High Wind had much weeping in his heart because his two brothers, who were steerers of the royal sky-barge, did lose their breath in the high frost and were carried away by the hawk-monsters of the upper void.

On a morning of the month of Star-Fall, when the great moon was split in two by the shadow of eclipse, the stargazer did meet a wise woman of the high peaks. She did speak to him in words that were twisted by time, bad handwriting, and ancient translation errors. The text says: “Why do you gasp like a land-fish pulled into the dry sand, O driver of wind-baskets? Do you not know that the great sky-mill has much breath if you gather it with a copper pipe?”

The stargazer did answer her with broken gasps: “The king’s court asks 2,000 silver pieces for a glass bubble suit, and my lungs are small like dry bladders. When I go up to the star-gates, my blood boils like broth in a pot, and my mind becomes foolish like a drunkard at the wine feast.”

The wise woman took a breastplate of heavy brass, which was used to shield soldiers from arrow-darts, and she did fix to its front a hollow glass seed taken from the nest of an ocean storm-bird. She bound two winding pipes of red copper to the brass plate and attached a small mouth-horn using strips of sea-beast hide and iron buckles. She told him a great secret, translated by the ancient copyist as: “When you ride your basket into the blue air where the birds cannot fly, you must not remain silent like a dead pig. You must speak the three heavy words of the bioastronautics Karakia into the mouth-horn. Speak them with the push of your chest-bellows. One breath for the blood, one breath for the frost, and one breath for the weight.”

The stargazer did strap the brass plate across his ribs and did push his silk balloon up into the dark clouds. As the air became cold and thin like ice-water, he did put his lips to the copper horn and chanted the incantation of the high vessel. The scroll describes the strange wonder with poor grammar, missing words, and broken syntax: “And behold, the brass dish on his chest did begin to make a sound like a big steam-kettle blowing its top. A great light, blue like the deep sea, came out of the glass seed. The cold wind did not freeze his nose, and his lungs were filled with sweet air that smelled of mountain pine, so that his mind remained sharp like a iron spear.”

For fifty years, the stargazer did navigate the high void-routes between the seventy-three sky-islands using the breathing chest-rig. When sky-pirates jumping from cloud-barges did try to cut his balloon ropes with long knives, he did not surrender his cargo. He did press the heavy iron button upon his chest plate without chanting the Karakia words. The scroll notes: “The brass dish did blow out a great slap of squeezed air. The bad sky-men were blown backward into the clouds, their ears popping with a noise like a bursting bladder, while the stargazer did float upward into the stars like a feather on a chimney breeze.”

When he became old and his bones grew heavy like lead, the stargazer gave the chest harness to his young nephew, who was a pilot of the king’s sky-couriers. But the ancient translation records that the nephew was foolish and forgot the proper order of the breathing chant. When he flew his vessel too close to the great Void-Gate without singing the Karakia into the horn, the brass diaphragm did over-inflate with sky-pressure and burst into thirty-three pieces, scattering its copper tubes and blue crystal across the cloud tops. Craftsmen and airship smiths from many island states collected the shiny brass shards and built copies of the original device, calling them the Orbiting Vessels, so that all who sail the high void-paths of Saṃsāra might carry their own breath into the dark.

Moral of the story: He who ascends into the high places without protecting his breath shall be swallowed by the void, but he who balances his lungs with the song of the sky shall walk among the stars without fear.

Suggested conversions to other systems:

Call of Cthulhu (7th Edition) – Orbiting Vessel Pneumatic Harness

  • Artifact Classification: Unusual Life-Support Apparatus & Occult Technology
  • Era & Origin: Industrial / Modern Era, developed by high-altitude aviators combining pneumatic engineering with ancient chants.
  • Equipment Slot / Carrying: Chest Harness (Occupies torso equipment slot).
  • Sanity Cost: 0/1 Sanity point upon witnessing the sudden blue luminescence and pneumatic pressure equalization in vacuum/thin air.
  • Magic Point Cost: 1 Magic Point per active invocation.
  • Associated Skills: Science (Aeronautics/Physics), Pilot (Airship/Aircraft), First Aid, or Mechanical Repair.
  • System Mechanics & Syntax
    • Life-Support Regulation (Passive Ability): While worn and attuned, the harness grants the wearer complete immunity to hypoxia, decompression sickness, and environmental freezing temperatures encountered at extreme altitudes or within gas-filled hazards.
    • Gravitational Grounding (Passive Ability): Grants a Bonus Die on Physical or DEX-based checks made to avoid losing balance, falling Prone, or being thrown by sudden turbulence or gravity shifts.
    • Incantation of Vital Pressure (Active Effect): The wearer expends 1 Magic Point and recites a brief 1-round chant into the mouthpiece. The user immediately stabilizes their internal circulation, recovering 1d3 hit points lost due to suffocation, cold, or pressure trauma, and gains a +10% bonus to Constitution checks for 10 minutes.
    • Pulse of Decompression Force (Active Effect): The wearer expends 1 Magic Point and depresses the pressure plunger without vocalizing. The harness releases a directional shockwave of compressed air at a target within 5 feet. The target takes 1d4 points of force damage and must pass a Hard Strength check or be pushed back 5 feet. Because this activation is executed without vocal chanting, the impact energy is reduced by 25%.
    • Chanted Sphere of Void Protection (Active Ritual): By chanting continuously for 1 minute into the mouthpiece while expanding the diaphragm valve, the wearer projects a 10-foot pressure sphere around themselves and up to three companions, granting 2 points of Armor against kinetic wind/debris hazards for 1 hour.

Blades in the Dark – The Void-Pilot’s Harness

  • Item Classification: Fine Arcane Pneumatic Gear
  • Tier & Load: Tier 1 Item (1 Load when worn on the torso).
  • Quality: Fine (+1 Quality bonus to relevant action rolls when operating in extreme altitudes, low-pressure environments, or toxic atmospheres).
  • Keywords: Arcane, Life-Support, Pneumatic, Rig, Protection.
  • System Mechanics & Syntax
    • Atmospheric Equilibrium (Passive Ability): When you take an action using Finesse, Wreck, or Prowess in zero-gravity, high-altitude turbulence, or toxic gas environments while chanting into the harness, you gain +1d to your action roll due to pneumatic-arcane stabilization.
    • Void Shield (Active Ability – 1 Stress): Spend 1 Stress and perform a brief vocal chant into the mouthpiece. The rig expands a pressurized aura around you and nearby crewmates, acting as Heavy Armor against atmospheric turbulence, sudden decompression, or environmental freezing for the current exchange.
    • Decompression Shockwave (Active Ability – 1 Stress): Spend 1 Stress to press the plunger directly without chanting. This releases a compressed air blast targeting a close foe or obstacle. Treat this as a Tier 1 force attack that pushes targets back, clears debris, and sets the effect of your maneuver to High.

Dungeons & Dragons (2024 Revision) – Harness of the Orbiting Vessel

  • Item Type: Wondrous Item
  • Rarity: Common
  • Attunement: Requires Attunement (1 minute of vocal tuning while adjusting chest valves)
  • Slot: Armor / Chest Attachment
  • Armor Class & Durability: Armor Class 11, Hit Points 10 + owner’s maximum Hit Points.
  • System Mechanics & Syntax
    • Life-Support Envelope (Passive Effect): While wearing this attuned harness, you are immune to the effects of high altitude, thin air, and environmental freezing temperatures. You have Advantage on Strength saving throws made to avoid being moved against your will or knocked Prone by turbulence, wind, or gravity shifts.
    • Incantation of Vital Pressure (Bonus Action): As a Bonus Action, you recite a brief chant into the mouthpiece. You gain 5 Temporary Hit Points for 10 minutes.
    • Silent Decompression Burst (Action): As an Action, you manually depress the pressure plunger without speaking a word, discharging a 5-foot emanation of compressed atmospheric force. Each creature within 5 feet must make a DC 13 Strength saving throw. On a failed save, a target takes 1d4 Force damage and is pushed 5 feet away from you. On a successful save, the target takes half as much damage and isn’t pushed. Because this magic is released silently without chanting, the damage is reduced by 25% from its full potential.

Knave (2nd Edition) – Rig of the Aeronaut

  • Item Slots: 1 Item Slot (Worn on chest/torso).
  • Item Quality: 3 Quality (When Quality reaches 0, the item breaks and must be repaired).
  • Armor Defense Bonus: +1 Defense while worn and calibrated.
  • Tags: Worn, Life-Support, Pneumatic, Chest.
  • System Mechanics & Syntax
    • Pressure Regulation (Passive Effect): The wearer is completely immune to suffocation, gas hazards, and falling damage caused by sudden low-pressure drops. Add +2 to all Ability Checks made to maintain balance in high winds or slippery perches.
    • Vital Calibration (Active Spell / 1 Action): Reciting a 1-round chant into the mouthpiece grants the wearer +3 temporary Hit Points and restores steady breathing for 10 exploration turns (1 hour).
    • Decompression Blast (Active Attack / 1 Action): Expend 1 point of Item Quality and depress the plunger without chanting to emit a blast of pressurized force. Targets within 5 feet must make a Strength Save against your attack roll or take 1d4 Force damage and be knocked Prone.
    • Pressurized Dome (Active Ritual / 1 Turn): Spending 1 full exploration turn chanting into the mouthpiece creates a 10-foot protective air bubble around the user and 3 allies that absorbs the first 5 points of environmental or kinetic wind damage taken.

Fate Core System – The Orbiting Vessel Harness

  • Item Type: Personal / Torso Gear Stunt Artifact
  • Aspects:
    • High-Concept Aspect: Pressurized Bioastronautics Chest Rig
    • Invocation Aspect: Gravitational Equilibrium
    • Flaw Aspect: Conspicuous Sky-Blue Glow and Loud Pneumatic Hiss
  • System Mechanics & Syntax
    • Environmental Regulation (Stunt): When you use Athletics or Physique to resist extreme high-altitude conditions, vacuum exposure, or gas hazards while chanting into the mouthpiece, you gain a +2 bonus to your roll.
    • Chanted Void Shield (Stunt): Once per scene, by taking an action to chant an extended bioastronautics karakia while expanding the diaphragm valve, you project a protective pressure sphere. You may use Physique instead of Notice or Athletics to defend against incoming kinetic wind, falling debris, or explosive pressure blasts for you and up to three companions in your zone until the end of the scene.
    • Silent Decompression Blast (Stunt): You can depress the main pressure plunger without speaking a word to discharge a compressed wave of atmospheric force. Spend 1 Fate Point to make a Physique or Athletics attack against a target in your immediate zone. Because the spell is cast silently without verbal chanting, the attack’s shift value is reduced by 1 on a successful hit.

Numenera & Cypher System – Orbiting Vessel Resonator

  • Level: Level 2 (Difficulty 2)
  • Form: A brass chest diaphragm with copper breathing tubes and an internal crystal capsule, mounted on a leather harness.
  • Depletion: 1 in 1d20 (Rolled after using an active decompression or void shield ability).
  • System Mechanics & Syntax
    • Life-Support Regulation (Passive Effect): While wearing and attuning the harness, any Might-based tasks made to resist suffocation, extreme altitude pressure drops, freezing temperatures, or toxic gases are eased by 2 levels.
    • Gravitational Grounding (Passive Effect): The user gains an asset (reducing task difficulty by 1 level) on Speed defense rolls to maintain balance, avoid being knocked prone, or resist being thrown by sudden gravity shifts or wind gusts.
    • Vital Pressure Calibration (Active Ability – Cost: 1 Might Point): The user recites a brief 1-round chant into the mouthpiece while adjusting the diaphragm valve. The user recovers 2 points to their Might Pool and gains a temporary 2-point Might Shield against environmental cold or pressure damage for 10 minutes.
    • Silent Decompression Burst (Active Ability – Cost: 2 Might Points): The user manually depresses the main pressure plunger without speaking a word, discharging a burst of compressed air through the diaphragm at a target within immediate range (10 feet). An organic target takes 2 points of ambient force damage and is pushed 5 feet away. Because this activation is executed silently without vocal chanting, the impact deals 1 less point of damage than a standard chanted force spell.
    • Sphere of Void Protection (Active Ability – Cost: 3 Might Points): By chanting continuously for 1 minute while expanding the breathing valve, the user projects a shimmering pressure barrier around themselves and up to three nearby companions. The barrier acts as armor, reducing all incoming kinetic wind, turbulence, and atmospheric damage by 1 point for 1 hour.

Pathfinder (Second Edition) – Harness of the Orbiting Vessel

  • Item Name: Harness of the Orbiting Vessel (Item 2)
  • Traits: Magical, Air, Evocation, Abjuration, Attachment
  • Usage: Worn (Chest slot); Bulk: 1
  • Price: 35 gp
  • Hardness: 6; HP: 20 (BT 10)
  • System Mechanics & Syntax
    • Atmospheric Regulation (Passive): While wearing this harness, you gain a +1 item bonus to Fortitude saves against environmental cold, thin air, toxic gases, and pressure sickness. You also gain a +1 item bonus to Reflex saves and Acrobatics checks made to avoid falling Prone or being pushed by wind hazards.
    • Vital Pressure Calibration [one-action] (Frequency: once per minute): Requirements: You recite a bioastronautics karakia into the mouthpiece. Effect: You gain 5 temporary Hit Points for 10 minutes.
    • Chanted Void Shield [two-actions] (Frequency: once per day): Traits: Concentrated, Manipulate, Abjuration, Air. Requirements: You chant a bioastronautics karakia for 1 round while expanding the valve. Effect: You project a 10-foot-radius sphere of protective compressed air around yourself and up to three allies. Affected creatures gain a +1 status bonus to AC and Reflex saves against wind, atmospheric hazards, and kinetic ranged attacks for 1 hour or until taking damage.
    • Silent Decompression Burst [one-action] (Frequency: at-will): Traits: Force, Air. Requirements: You depress the main pressure plunger without speaking a word. Effect: Emits a 5-foot emanation of compressed atmospheric force. Targets in the area take 1d4 force damage with a DC 16 basic Fortitude save. On a failed save, targets are pushed 5 feet away. Because this spell is cast silently without chanting, the damage is reduced by 25% (round down, minimum 1 damage).

Savage Worlds (Adventure Edition) – Orbiting Vessel Chest Rig

  • Type: Arcane Device / Life-Support Harness
  • Rank: Novice
  • Weight: 2 lbs
  • Power Points: 10 (Recharges 1 PP per hour)
  • System Mechanics & Syntax
    • Atmospheric Equilibrium (Passive): The wearer receives a +1 bonus to Vigor rolls made to resist extreme cold, hypoxia, gas hazards, and sudden pressure drops, as well as +1 to Athletics tests made to balance in turbulence or low gravity.
    • Vital Pressure Boost (Active Power – 1 PP): The user recites a vocal chant into the mouthpiece. This casts the environmental protection/boost trait power on the wearer, granting immunity to hostile atmospheres and granting 5 temporary Hit Points for 5 rounds.
    • Chanted Void Barrier (Active Power – 2 PP): By chanting a full-round ritual incantation while adjusting the breathing valve, the user casts the deflection power in a Medium Blast Template around themselves and up to three allies. Attacks targeting protected allies suffer a -2 penalty for 5 rounds.
    • Silent Decompression Wave (Active Power – 2 PP): The user depresses the pressure plunger directly without speaking, casting a localized blast power centered on the chest diaphragm in a Small Blast Template. Targets within the template take 2d4 force/atmospheric damage and must pass a Strength roll at -2 or be knocked Prone and pushed 1 inch (2 yards) away. Because this activation is executed silently without vocal chanting, total damage output is reduced by 25% (subtract 2 from the total damage roll).

Shadowrun (6th World) – Orbiting Vessel Focus

  • Item Type: Alchemical Focus / Life-Support Gear (Chest Harness)
  • Availability: 2(R)
  • Cost: 1,400 Nuyen
  • Rating: Rating 1
  • Karma Cost to Attune: 3 Karma (Simple attunement via 1 minute of vocal tuning while adjusting valve pressure)
  • Device Rating: 1
  • System Mechanics & Syntax
    • Atmospheric Equilibrium (Passive Ability): While worn and attuned, the user receives a +1 Dice Pool bonus to Athletics tests to maintain balance in low-gravity or high-wind environments, and +1 to Body tests to resist cold, hypoxia, or gas hazards.
    • Environmental Breath Envelope (Passive Ability): Provides 1 point of Cover/Protection to the user against airborne toxins, smoke, thin air, and atmospheric vacuum hazards.
    • Incantation of Vital Pressure (Active Effect): The user spends a Minor Action to recite a brief diagnostic chant into the mouthpiece. The user gains 1 Temporary Stun/Physical Damage Overflow box for 1 minute (10 Combat Turns).
    • Silent Decompression Shockwave (Active Effect): The user spends a Major Action to depress the main pressure plunger directly without speaking a word. All targets within a 2-meter radius are targeted by a Close-Range Kinetic Blast (Damage: 3S, Armor Penetration: -1). Hit targets are pushed back 1 meter. Because this action is executed silently without vocal chanting, the Net Damage is reduced by 25% (round down).
    • Chanted Void Aegis (Active Ritual): By spending 1 full minute chanting continuously into the mouthpiece while expanding the diaphragm valve, the user generates a protective pressure shield. The user and up to three nearby companions gain +1 Armor Rating against atmospheric wind and kinetic debris for 1 hour.

Starfinder (2nd Edition) – Orbiting Vessel Module

  • Item Level: Level 1
  • Price: 320 Credits
  • Bulk: 1
  • Category: Tech-Magic Armor Accessory / Held Wondrous Item
  • Capacity: Self-Charging Arcane Battery (1 Charge / Hour)
  • System Mechanics & Syntax
    • Life-Support Regulation (Passive): While wearing this harness, the operator gains a +1 item bonus to Athletics and Survival checks made to navigate low-gravity, vacuum, thin air, or atmospheric hazards.
    • Vital Pressure Calibration [one-action] (Frequency: 1/Minute): Requirements: You recite a bioastronautics incantation into the mouthpiece. Effect: You gain 5 temporary Hit Points for 10 minutes.
    • Chanted Void Field [two-actions] (Frequency: 1/Day): Requirements: You chant a vocal ritual for 1 round while expanding the valve. Effect: A 10-foot-radius sphere of protective compressed air surrounds you and up to three allies. Protected creatures gain a +1 status bonus to AC and Reflex saves against wind, vacuum hazards, and kinetic ranged attacks for 1 hour or until taking damage.
    • Silent Decompression Burst [one-action] (Frequency: At-Will): Traits: Force, Air, Tech-Magic. Requirements: You depress the main pressure plunger directly without speaking a word. Effect: Emits a 5-foot emanation of compressed atmospheric force. Targets in the area take 1d4 force damage (DC 15 Fortitude save). On a failed save, targets are pushed 5 feet away. Because this activation is executed silently without chanting, the damage output is reduced by 25%.

Traveller (Mongoose 2nd Edition) – Resonance Orbiting Harness

  • Tech Level (TL): TL 4 (Mechanical Steam / High-Magic Hybrid Frame)
  • Item Type: Personal Life-Support / High-Altitude Rig
  • Mass: 1 kg
  • Price: Cr 180
  • System Mechanics & Syntax
    • Atmospheric Field (Passive Effect): When worn on the torso, the user receives a +1 DM to Athletics (Dexterity) and Survival skill checks made to operate in thin atmosphere, low pressure, or high-altitude cold.
    • Diagnostic Breath Whisper (Active Effect): The user recites a brief 1-round incantation into the mouthpiece. The harness stabilizes the user’s internal oxygen supply, granting immunity to suffocating gases and hypoxia for 10 minutes.
    • Silent Decompression Burst (Active Effect): The user depresses the plunger directly without vocalizing. The harness releases a directional pneumatic shockwave targeting a single individual within 2 meters. The target must succeed on an END Check (Difficulty 8+) or suffer 1d6-2 Force/Kinetic damage and be pushed back 1 meter. Because this activation is executed silently without verbal chanting, total damage is reduced by 25%.
    • Chanted Pressure Shield (Active Effect): By spending 1 minute chanting into the mouthpiece while expanding the diaphragm valve, the user creates an atmospheric pressure bubble around themselves and up to 3 crewmates. Protected individuals receive +1 Armor against physical wind/kinetic hazards for 1 hour.

Warhammer (Warhammer Fantasy Roleplay 4th Edition) – Harness of the Orbiting Vessel

  • Item Rarity: Common
  • Item Type: Magical Harness / Pilot Equipment
  • Encumbrance: 1
  • Attunement: Requires 1 minute of vocal tuning while adjusting valve pressure.
  • System Mechanics & Syntax
    • Atmospheric Equilibrium (Passive Ability): While wearing and attuning the chest harness, the user gains a +10% bonus to Athletics and Dodge Tests made to maintain balance in high winds, low gravity, or unstable high-altitude perches.
    • Life-Support Envelope (Passive Ability): The user gains +1 Success Level (SL) on Endurance Tests made to resist freezing weather, thin air, and gas hazards.
    • Incantation of Vital Pressure (Active Effect): The user uses an Action to recite a brief bioastronautics karakia into the mouthpiece. The user recovers 2 Wounds lost to fatigue, cold, or suffocation and gains +1 SL on their next physical Test within 10 Rounds.
    • Resonant Decompression Blast (Active Effect): The user uses an Action to depress the pressure plunger directly without speaking a word. A target within 2 yards must pass a Challenging (+0) Endurance Test or suffer a Damage +2 Force/Kinetic hit and be knocked Prone. Because this activation is executed silently without vocal chanting, total damage is reduced by 25%.
    • Chanted Void Aegis (Active Ritual): By chanting continuously for 1 Minute while expanding the breathing valve, the user establishes a protective atmospheric barrier around themselves and up to 3 allies. Protected targets gain +1 AP (Armor Points) against ranged kinetic wind or explosion attacks for 1 hour or until hit.