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Aetheric Ledger Compass 3917

—

by

Dale
in

From: Lineage of the Valyrn

This intricate device resembles a Renaissance-era compass, its face engraved with trade runes and powered by a core of condensed magical flow. Carried by Eryndor Vael, it serves to map the value gradients of magical artifacts within a 50-foot radius, guiding him to hidden treasures or authentic relics in bustling markets or ruins. The compass needle shifts to align with the strongest magical aura, and a small steam-driven quill records findings on a parchment scroll housed within, though its delicate components can jam in humid environments.

Lore: The Aetheric Ledger Compass 3917 emerged from the arcane workshops of Saṃsāra’s early trade academies, crafted over six thousand years ago by a scholar-soul named Aelric of the Aether, whose spirit drifted from a multiversal realm where navigation and magic were one. Aelric, driven by the need to catalog the vast magical artifacts scattered across the 73 island countries after the arrival of multiversal souls, designed the compass to harness the condensed magical flow that ebbed through Saṃsāra’s high-magic realms. Forged with a face engraved with trade runes sourced from ancient merchant scrolls and powered by a core extracted from a crystalline steam vent, the device became a revolutionary tool for appraisers. During a legendary expedition to a forgotten ruin, Aelric used the compass to locate a hidden vault of authentic relics, its needle shifting to guide him while the steam-driven quill recorded their value gradients on a parchment scroll, earning him the title of “Keeper of Treasures.” The compass’s delicate components, however, proved vulnerable during a humid jungle trek, where moisture caused a jam, a flaw Aelric attributed to the balance between magic and nature. Passed down through Valyrn lineage as a symbol of trade mastery, it reached Eryndor Vael, who relies on its guidance to navigate the bustling markets and uncharted territories of Saṃsāra’s steampunk world.

Tier 1 Stats Modifiers:

  • Intelligence: +3 (Enhances analytical skills for mapping value gradients and interpreting magical auras)
  • Wisdom: +1 (Boosts intuition for locating hidden treasures)
  • Dexterity: -1 (Reflects the compass’s bulk and potential for jamming, slowing fine motor skills)

Skills Gained:

  • Artifact Mapping: Grants proficiency in detecting and mapping the value gradients of magical artifacts, adding a +2 bonus to Investigation checks within 50 feet.
  • Rune Navigation: Allows the wearer to follow the compass’s needle, providing a +2 bonus to Survival checks to locate hidden relics or authentic items.

Multiple Passives Magic:

  • Aetheric Resonance: The trade runes passively emit a faint magical pulse, granting a +10% resistance to magical misdirection or illusion-based concealment within its radius.
  • Quill Precision: The steam-driven quill enhances record-keeping accuracy, providing a +1 bonus to Intelligence checks when documenting findings.

Multiple Activatable Magics:

  • Aura Alignment (1 use per hour): When activated, the needle shifts to align with the strongest magical aura, granting a +3 bonus to Perception checks for 1 minute to pinpoint artifacts, but imposes a -1 penalty to Dexterity checks for the next minute due to focused energy.
  • Steam Record (2 uses per day): Engages the quill to record value gradients on the parchment, adding a +2 bonus to Investigation checks for 10 minutes, though overuse (more than twice in a day) risks a 20% chance of the mechanism jamming, rendering it unusable for 1 hour in humid conditions.

Specific Slot: Tool (carried in hand or worn at the belt, requiring careful handling)

Tags: Aetheric Magic, Valyrn, Trade Runes, Renaissance, Artifact Detection, Steam Power, Gear-Dependent, Delicate Mechanism, Value Mapping, Magical Flow Core, Steam Quill, Hidden Treasure, Rune Engraving, Market Guide, Precision Mapping, Aetheric Pulse, Relic Finder

The Aetheric Ledger Compass 3917, a prized artifact of the Valyrn lineage, is a rare and sophisticated tool in Saṃsāra’s trade networks, coveted by appraisers, explorers, and arcane navigators. Its acquisition and sale occur in specialized venues that reflect the world’s Renaissance-steampunk aesthetic, driven by magical flow and steam-powered commerce, with transactions conducted through barter or magical currency.

Shops and Venues:

  • Arcane Cartography Guildhalls: Located in the scholarly districts of megacities like Myrkal, these grand halls feature steam-powered drafting tables and enchanted map displays. Master cartographers, often Valyrn scholars or trade mages, craft and sell the compass, showcasing it on polished stands with its trade runes glowing under magical lanterns. Buyers, typically guild navigators or relic hunters, negotiate directly with the cartographer, offering enchanted parchment or steam cores while testing the compass’s aura alignment with arcane objects.
  • Floating Navigator Markets: Situated on drifting platforms above Saṃsāra’s oceans, these bustling markets host steam-driven stalls tended by traveling explorers. The compass might be sold by a Valyrn trader or a relic scout, displayed under a steam-lit canopy with its quill humming. Transactions involve bartering with magical ink or steam-powered tools, with buyers assessing the compass’s steam record amid the hum of aerial activity.
  • Underwater Trade Navigariums: Found in submerged population centers, these intricate navigariums are accessed via airlocks and illuminated by bioluminescent algae. Aquatic cartographers, skilled in enchanting delicate devices, sell the compass in pressurized chambers, where its silver face reflects in the water. Buyers, often deep-sea traders, use telepathic haggling and offer rare pearl ink or enchanted coral, with the compass’s magic verified through resonance tests.
  • Ruins Exploration Camps: Operated by nomadic relic hunters, these temporary camps are set up near jungle ruins or uncharted islands, lit by steam-powered lamps. The compass might be sold by a scavenger who recovered it, displayed on a steam-lit table alongside other artifacts. Deals are struck with salvaged runes or steam-driven devices, finalized with a magical oath under the canopy of ancient trees.
  • Noble Trade Symposiums: Held in the grand halls of megacity skyscrapers or floating cities, these prestigious events feature steam-driven chandeliers and tiered seating. The compass is auctioned to noble explorers, guild leaders, and arcane scholars, presented on a velvet cushion with its aura alignment activated. Bidders submit sealed offers in enchanted chests, with the highest bid determined by a Valyrn mediator using the compass’s steam record to assess the value of proposed payments.

Cost in Each Venue:

  • Arcane Cartography Guildhalls: The compass is priced at 1,500 magical gold ingots, reflecting its craftsmanship and magical core, often requiring additional payment in enchanted parchment (worth 200 ingots) or a steam core (valued at 250 ingots) due to its exclusivity.
  • Floating Navigator Markets: Costs range from 1,200 to 1,400 magical gold ingots, depending on the trader’s stock and buyer negotiation, with barters including magical ink (900 ingots) or a steam pulley (800 ingots).
  • Underwater Trade Navigariums: Prices vary from 1,600 to 1,800 magical gold ingots, with added demands for luminescent pearl ink (300 ingots each) or an enchanted trident (400 ingots), reflecting its rarity in aquatic depths.
  • Ruins Exploration Camps: Values fluctuate between 1,000 and 1,300 magical gold ingots, based on the camp’s isolation and seller urgency, with trades involving salvaged runes (1,100 ingots) or a steam lamp (600 ingots).
  • Noble Trade Symposiums: The compass can fetch 1,900 to 2,300 magical gold ingots, with bids often including unique items like a trade relic (1,800 ingots) or enchanted crystals (1,600 ingots), highlighting its prestige among the Valyrn community.

The buying and selling process in these venues combines traditional haggling with magical verification, with the compass’s value assessed using tools like aetheric compasses or steam-powered calipers. Transactions are recorded in steam-driven ledgers, and ownership is sealed with a magical contract, ensuring its journey through Saṃsāra’s intricate trade network. The compass’s delicate components and potential for jamming in humid conditions are disclosed to serious buyers, adding a layer of caution to its exchange.

The Aetheric Ledger Compass 3917, carried by Eryndor Vael, serves as a strategic tool in roleplay scenarios, its defensive and offensive applications shaped by Saṃsāra’s high-magic, steampunk-inspired environments. Its use relies on Eryndor’s gear-dependent magic and the compass’s enchanted properties, tailored to the unique challenges of various settings.

Urban Megacity (Myrkal Market District):

  • Defense: In the crowded, steam-filled streets of Myrkal, Eryndor activates Aura Alignment to pinpoint a hidden magical trap set by a thief, using the +3 Perception bonus to avoid it and guide his retreat to a steam-driven stall. The Aetheric Resonance passive resists a merchant’s illusion spell, preserving his awareness. He uses Steam Record to document a rival’s enchanted item, exposing its value to deter an attack.
  • Offense: Eryndor employs Aura Alignment to locate a guard’s concealed weapon, the +3 bonus allowing him to alert allies to disarm them. Steam Record reveals a counterfeit relic’s aura, turning the market crowd against the seller and creating a distraction.

Floating City (Aerial Trade Pavilion):

  • Defense: Aboard a swaying pavilion, Eryndor activates Aura Alignment to detect a magical sabotage in the platform’s runes, the +3 Perception bonus guiding the crew to reinforce it. Aetheric Resonance counters a levitation illusion, keeping him steady. Steam Record logs a rival trader’s aura, providing evidence to negotiate a truce.
  • Offense: With Aura Alignment, he pinpoints an enemy airship’s enchanted engine, the +3 bonus enabling Miraleth Teyn to target it with a steamship cannon. Steam Record documents the aura’s strength, weakening the enemy’s morale.

Underwater Population Center (Submerged Vault):

  • Defense: In the bioluminescent depths, Aetheric Resonance resists a telepathic concealment attempt, maintaining his focus as he uses Aura Alignment to spot a hidden passage with a +3 bonus, avoiding an ambush. Steam Record logs a guard’s enchanted weapon, aiding in evasion.
  • Offense: Eryndor employs Aura Alignment to locate a sea beast’s magical core, the +3 bonus guiding Veyra Solis to strike it. Steam Record reveals a rival’s aura weakness, allowing a coordinated steam burst to disorient them.

Jungle Ruins (Uncharted Island):

  • Defense: Amid overgrown ruins, Eryndor activates Aura Alignment to detect a magical vine trap’s aura, the +3 Perception bonus helping him cut it with his dagger. Aetheric Resonance counters a weight-shifting illusion, preserving his balance. Steam Record documents a relic’s value, deterring a rival’s claim.
  • Offense: He uses Aura Alignment to pinpoint a guardian statue’s magical source, the +3 bonus enabling a steam-powered caliper analyzer to topple it. Steam Record exposes a rival’s enchanted gear, turning Kaelith against them.

Dark Cave System (Megacity Undercroft):

  • Defense: In the dim caverns, Aetheric Resonance resists a shadow creature’s concealment, preserving his perception as he uses Aura Alignment to spot a hidden chasm with a +3 bonus, avoiding a fall. Steam Record logs a foe’s aura, aiding in retreat planning.
  • Offense: Eryndor employs Aura Alignment to locate an enemy’s enchanted weapon, the +3 bonus guiding a parry with his Arcane Balance Dagger 7391. Steam Record reveals a cavern wall’s magical reinforcement, allowing a steam blast to collapse it.

Across these environments, the compass’s roleplay utility depends on Eryndor’s strategic use of its activatable magics and passives, balanced against its delicate mechanism. Its defensive strength lies in detection and evasion, while offensive applications leverage revealed auras and recorded evidence, aligning with his appraisal-focused, non-combatant role.

Perception of Activation:

User’s Perspective (Eryndor Vael):

  • Sight: The compass face glows with a soft, ethereal light as the trade runes pulse with energy, the needle spinning gracefully before locking onto a magical aura, while the steam-driven quill begins to scratch across the parchment.
  • Sound: A gentle whirring hum rises from the compass, like the quiet churn of a steam engine, accompanied by the faint scratch of the quill and a soft click as the needle settles, growing slightly louder with activation.
  • Touch: A warm tingle spreads through my hand holding the compass, the metal feeling alive as it vibrates subtly, though the device’s weight makes my grip slightly unsteady.
  • Smell: A crisp, aetheric scent wafts up, reminiscent of ozone mixed with the earthy aroma of aged parchment, as if the compass draws on Saṃsāra’s magical flow.
  • Taste: A faint, dusty tang lingers on my tongue, akin to the taste of old books, intensifying with prolonged use, hinting at the mechanism’s strain.
  • Extra-Sensory Perceptions: Through the compass, I sense a map of magical value gradients unfolding in my mind, guiding me to hidden treasures with an intuitive pull, and I feel a connection to the trade runes’ ancient wisdom, though a growing tension suggests the delicate components’ limits.

Observer’s Perspective (A bystander in Myrkal):

  • Sight: The compass in Eryndor’s hand lights up with glowing runes, the needle spinning before settling, and a small steam-driven quill dances across a parchment, drawing attention amid the market’s steam.
  • Sound: A low whirring hum drifts from the compass, blending with the ambient steam hiss, punctuated by the scratch of the quill, creating a distinctive sound in the noisy environment.
  • Touch: The air around Eryndor feels faintly warmer, a subtle heat radiating from the compass that hints at its magical nature, though it doesn’t reach me directly.
  • Smell: A sharp, ozone-like aroma wafts toward me, mingling with the market’s spices, suggesting the compass’s ancient and mystical craftsmanship.
  • Taste: No taste is perceptible, but the air’s charge leaves a dry sensation in my mouth, as if the magic’s presence subtly alters the atmosphere.
  • Extra-Sensory Perceptions: I sense an aura of knowledge and guidance emanating from Eryndor, as if the compass reveals secrets beyond sight. There’s a slight unease, a ripple of magical energy that suggests a fragile power at work.

Positives:

  • The glowing runes and spinning needle enhance Eryndor’s ability to map magical artifacts, boosting his appraisal accuracy and guiding him to treasures effectively.
  • The whirring hum and warm tingle provide rhythmic feedback, reinforcing his confidence in the compass’s navigational magic during explorations.
  • The aetheric scent and dusty taste align with his Valyrn heritage, motivating engagement in artifact hunting while projecting an aura of scholarly expertise.
  • The extra-sensory value gradient map and rune wisdom sharpen his skills, enabling him to locate hidden relics or authenticate items, while observers perceive him as a knowledgeable guide.
  • For observers, the visible glow and aura enhance Eryndor’s reputation, attracting potential clients or deterring theft.

Negatives:

  • The prolonged glow strains the compass’s delicate components, risking jamming that reduces its effectiveness, especially in humid conditions.
  • The escalating hum and vibration can become distracting, potentially alerting enemies to his activated state or causing discomfort over time.
  • The warmth may intensify into a burning sensation, signaling mechanism strain if overused, limiting his endurance.
  • The aetheric scent and dusty taste grow overpowering, possibly nauseating him or signaling to observers that the compass’s power is nearing its limit.
  • The extra-sensory tension from value gradients and rune wisdom can overwhelm his focus, leading to errors or fatigue, while the unease felt by observers might foster caution, complicating social interactions.

Crafting Recipe: Aetheric Ledger Compass Replica

Materials Needed:

  • 1 Renaissance-Style Compass Frame: Forged from enchanted silver mined from a high-magic realm, infused with Saṃsāra’s magic flow for durability.
  • 10 Trade Runes: Carved from ancient merchant scrolls’ stone, etched with magical symbols to channel aetheric energy.
  • 1 Condensed Magical Flow Core: Extracted from a crystalline steam vent, serving as the power source for the compass.
  • 1 Steam-Driven Quill: Crafted from enchanted feather and steam piston, treated with magical ink to record findings.
  • 1 Parchment Scroll: Made from magically treated paper sourced from a sacred grove, resistant to humidity.
  • 1 Ounce Aetheric Resin: Derived from aether-infused moss in uncharted islands, used to seal delicate components.

Tools Required:

  • Enchanted Smelter: A steam-powered smelter with magical circuits, used to refine and shape the silver frame.
  • Rune Etching Tool: A steam-driven instrument designed to inscribe trade runes with precision, aligning their magical properties.
  • Magical Core Infuser: A steam-operated device that integrates the condensed magical flow core, maintaining energy flow.
  • Quill Assembly Press: A steam-powered press that secures the steam-driven quill, ensuring its functionality.
  • Resin Sealer: A ceremonial tool channeling steam and magic to apply aetheric resin, requiring a steady flow.

Skill Requirements:

  • Metalworking (Master): Proficiency in smelting and shaping enchanted silver, ensuring the frame’s elegance and strength.
  • Rune Enchantment (Expert): Ability to etch and enchant trade runes, aligning them with aetheric intent.
  • Magical Engineering (Expert): Skill in integrating and enchanting the magical flow core, maintaining a stable power source.
  • Quill Crafting (Adept): Competence in assembling and enchanting the steam-driven quill, ensuring recording accuracy.
  • Resin Application (Adept): Knowledge to handle and apply aetheric resin without damaging delicate components.

Crafting Steps:

  • Begin by heating the 1 Renaissance-style compass frame in the enchanted smelter, shaping it with a steady steam flow to enhance its durability and magical resonance, ensuring a smooth finish without warping.
  • Use the rune etching tool to inscribe the 10 trade runes onto the compass face, activating each with a steam pulse to enhance their aetheric resonance, verifying their alignment with a resonance test.
  • Operate the magical core infuser to integrate the 1 condensed magical flow core into the compass, aligning it with the runes and testing the flow with a controlled steam burst to confirm energy stability.
  • Secure the 1 steam-driven quill to the compass using the quill assembly press, infusing it with magical ink and aligning it with the core, ensuring it records findings accurately with a test scroll.
  • Conduct the resin sealing ritual with the resin sealer, channeling steam and magic over the compass for 10 minutes to apply the 1 ounce of aetheric resin, sealing the delicate components and preventing humidity damage.
  • Test the compass by activating Aura Alignment, confirming the needle’s shift and the quill’s recording before finalizing with a magical resonance check, completing the replica.

Compass of Aelric’s Aether

In days when mists of worlds beyond did veil Saṃsāra’s isles in dawn’s breath, there came Aelric, soul woven from a land where stars guided and magic sang. His mind held maps of unseen paths, and he walked to caves where steam rose like spirits. From silver shaped by hand of old and runes carved from scrolls ancient, he crafted a compass, naming it “Eye of Aether,” a tool to seek treasures hidden and truths buried.

Long did Aelric roam the market ways and ruin depths, his compass aglow with light of runes when wealth was near. In a quest bold, where vines hid gold, he held the compass, its needle dancing to find a vault lost, while quill of steam wrote secrets on scroll. A magic flow, wild and deep, stirred and blessed the core with power, whispering that aether would guide his step. Yet, a voice from the flow spoke, demanding a price: the compass would frail be, jamming ‘neath damp air. Thus, the device bore a flaw, its wisdom a shield against haste.

Many moons waned, and Aelric judged a hoard ‘twixt traders fierce, their relics laced with magic false. The compass’s glow uncovered a gem true, and riches were claimed. But the flow’s toll came swift. In a jungle thick, where mists hung heavy, the quill stilled, its gears locked by damp, and Aelric stumbled. His kin, fearing the flow’s wrath, hid the compass in a ruin guarded by steam and stone, its light a faint pulse in the dark.

Through ages, the tale twisted in tongues of old, scribes faltering o’er words from a language lost. The compass passed to hands wise, each seeker chasing its guide. In underwater halls and sky-borne markets, it pointed true, its quill a mark of lore. Yet, none escaped the damp’s shadow. Eryndor of Vael, with hair like flame, claimed it from his line, using it to find relics in Myrkal’s streets. The flow’s voice lingered, demanding care, and Eryndor’s hand faltered under its strain.

The story, marred by time’s decay, speaks of Aelric’s last map, where he cast the compass into a steam geyser to free its curse, only for it to rise anew, its runes aglow. In jungles wild and caves deep, its legend grew, a compass of power and peril.

Moral of the Story: Seek the guidance of ancient aether with care, for wisdom may falter in nature’s embrace.

Suggested conversions to other systems:

Call of Cthulhu – Compass of Aelric’s Lore

  • Stat Block: Item, Magical Device, INT 0, POW 11, DEX 0, HP 6, Armor 0, Sanity Loss 0/1 (if mechanism jams)
  • Specific Game Mechanics: This tool slot item grants a +15% bonus to Spot Hidden and Occult skill checks for mapping magical artifact value gradients within 50 feet. Once per hour, activate Aura Alignment for a +20% bonus to Spot Hidden to pinpoint artifacts for 6 rounds, but imposes a -10% penalty to Dexterity for the next minute due to focus. Steam Record, usable twice per day, adds a +10% bonus to Library Use to document findings, with a 20% chance of a Sanity roll (difficulty 0/1D3 loss) if overused due to jamming in humid conditions. Passive effect: Aetheric Resonance provides +5% resistance to illusion-based concealment. Mechanism failure after 10 minutes requires a POW roll or suffer 1D4 Sanity loss and -1 to Intelligence for 1D6 rounds. Balanced with Cthulhu’s horror theme by minimal durability and Sanity cost.

Blades in the Dark – Aetheric Trade Finder

  • Stat Block: Item, Fine Quality, Load 1, Value 3, Effect: Special
  • Specific Game Mechanics: This tool slot item grants +1d to Study and Survey rolls for mapping magical artifact value gradients within Near range. Once per score, activate Aura Alignment for +2d to Survey to pinpoint artifacts for the scene, but take 1 Stress from focused strain. Steam Record, usable twice per downtime, adds +1d to Study to document findings, with a 20% chance of 1 Trauma if overused. Passive effect: Aetheric Resonance grants +1d resistance to concealment. Mechanism jams in humid conditions, imposing -1d to Prowl after 3 uses in a session unless a Resistance roll succeeds. Balanced with Blades’ stress system by load and limited uses.

Dungeons & Dragons (5th Edition) – Compass of Aetheric Insight

  • Stat Block: Wondrous Item, Rare, Requires Attunement
  • Specific Game Mechanics: This tool slot item grants a +2 bonus to Intelligence (Investigation) and Wisdom (Perception) checks for mapping magical artifact value gradients within 50 feet. Passive feature: Aetheric Resonance gives advantage on saving throws against illusion effects. Activatable feature: Aura Alignment (1/hour) provides advantage on Wisdom (Perception) checks for 1 minute to pinpoint artifacts, followed by disadvantage on Dexterity checks for 1 minute due to focus. Steam Record (2/day) grants advantage on Intelligence (Investigation) checks to document findings for 10 minutes, with a 20% chance of a DC 15 Constitution saving throw or the device jams, becoming unusable for 1 hour in humid conditions if overused. Attuning for 10 minutes requires a DC 15 Wisdom saving throw or take 2d6 psychic damage from mechanism strain. Balanced with 5e’s attunement and bounded accuracy.

Knave – Compass of the Aetheric Ledger

  • Stat Block: Item Slot: Tool, Value: 150 gp, Weight: 0.5, Special: Magical
  • Specific Game Mechanics: This tool adds +2 to INT or WIS checks for mapping magical artifact value gradients within 50 feet. Passive ability: Aetheric Resonance grants +1 to saves against illusion effects. Activatable ability: Aura Alignment (1 use per rest) adds +3 to WIS checks to pinpoint artifacts for 1 hour, but reduces DEX checks by -1 for the next hour. Steam Record (2 uses per rest) adds +2 to INT checks to document findings for 10 minutes, with a 20% chance of rolling on the Injury table if used thrice in a day. Mechanism strain after 10 minutes requires a CON save (DC 12) or lose 1d4 HP and be dazed for 1 turn in humid conditions. Balanced with Knave’s resource management by rest limits and injury risk.

Fate – Compass of Valyrn’s Aether

  • Stat Block: Aspect: Compass of Valyrn’s Aether, Extra: Magical Device, Cost: 2 Refresh
  • Specific Game Mechanics: This tool slot item provides the aspect Compass of Valyrn’s Aether, which can be invoked for a +2 bonus to Create an Advantage or Overcome actions involving mapping magical artifact value gradients within a zone. Once per scene, activate Aura Alignment to create a boost (e.g., “Treasure Sense”) with a +3 bonus to Perception-based actions to pinpoint artifacts, but the user takes a mild consequence (e.g., “Mechanism Strain”) for the rest of the scene. Steam Record, usable twice per session, grants a +2 bonus to Create an Advantage to document findings, with a 20% chance of compelling the aspect to impose a moderate consequence (e.g., “Jammed Quill”) if overused in humid conditions. Passive effect: Aetheric Resonance allows a +1 bonus to defend against illusion effects. Balanced with Fate’s narrative focus by refresh cost and consequence risks.

Numenera & Cypher System – Compass of Aetheric Lore

  • Stat Block: Item, Level: 5, Depletion: 1 in 1d20, Usable: Tool Slot
  • Specific Game Mechanics: This tool grants a level 3 asset to tasks involving mapping magical artifact value gradients within long range. Passive ability: Aetheric Resonance provides a +1 to Intellect defense rolls against illusion effects. Activatable ability: Aura Alignment (1/hour) increases the asset to level 4 for Perception-based tasks to pinpoint artifacts for 1 minute, but the user suffers 1 point of Might damage due to focus strain. Steam Record (2/day) offers a level 3 asset to Intellect-based tasks to document findings for 10 minutes, with a 20% chance of depletion or 2 Might damage if used thrice in humid conditions. Mechanism strain after 10 minutes requires a Might defense roll (difficulty 4) or lose 1 action. Balanced for Numenera’s sci-fantasy setting by depletion and damage costs.

Pathfinder (2nd Edition) – Compass of Aetheric Trade

  • Stat Block: Magical Item, Rare, Price 1,600 gp, Usage Held (Tool)
  • Specific Game Mechanics: This tool slot item grants a +2 item bonus to Perception and Occultism checks for mapping magical artifact value gradients within 50 feet. Passive feature: Aetheric Resonance gives a +1 circumstance bonus to saving throws against illusion effects. Activatable feature: Aura Alignment (1/hour) provides a +3 item bonus to Perception checks for 1 minute to pinpoint artifacts, followed by a -1 status penalty to Dexterity checks for 10 minutes due to focus. Steam Record (2/day) grants a +2 item bonus to Occultism to document findings for 10 minutes, with a 20% chance of a Fortitude save (DC 18) or the device jams, becoming unusable for 1 hour in humid conditions if overused. Attuning for 10 minutes requires a Will save (DC 20) or take 2d6 mental damage from mechanism strain. Balanced with 2e’s item rarity and save mechanics.

Savage Worlds (Adventure Edition) – Aetheric Ledger Guide

  • Stat Block: Gear, Magical Device, Cost 1,400 gp, Weight 0.5, Slot: Tool
  • Specific Game Mechanics: This item grants a +2 to Notice and Investigation rolls for mapping magical artifact value gradients within 50 feet. Passive trait: Aetheric Resonance adds +1 to Spirit rolls against illusion powers. Activatable edge: Aura Alignment (1/hour) gives a +3 to Notice for 3 rounds to pinpoint artifacts, but imposes a -1 penalty to all trait rolls for 5 rounds due to focus. Steam Record (2/day) adds +2 to Investigation to document findings for 10 minutes, with a 20% chance of a Vigor roll (-2) or be Shaken if used thrice in humid conditions. Mechanism strain after 10 minutes requires a Spirit roll (-2) or suffer 2d4 fatigue. Balanced with Savage Worlds’ wild die and fatigue system.

Shadowrun (6th Edition) – Valyrn’s Aetheric Navigator

  • Stat Block: Gear, Magical Device, Availability 15F, Cost 10,000¥, Essence 0.2, Capacity 6, Device Rating 4
  • Specific Game Mechanics: This tool slot item provides a +2 dice pool bonus to Perception and Arcana tests for mapping magical artifact value gradients within 50 meters. Passive effect: Aetheric Resonance grants +1 dice pool to resist illusion spells. Activatable power: Aura Alignment (1/hour) adds +3 dice pool to Perception for 1 minute to pinpoint artifacts, but imposes 2 Stun damage from focus strain. Steam Record (2/day) adds +2 dice pool to Arcana to document findings, with a 20% chance of 1 Physical damage if overused in humid conditions. Mechanism strain after 10 minutes requires a Willpower + Intuition (3) test or suffer 1D6 Stun damage. Balanced with Shadowrun’s tech-magic blend by essence cost and damage risks.

Starfinder (2nd Edition) – Compass of Aetheric Trade

  • Stat Block: Magic Item, Level 7, Price 7,500 credits, Bulk L, Capacity 20, Usage 1/round
  • Specific Game Mechanics: This tool slot item grants a +2 insight bonus to Perception and Mysticism checks for mapping magical artifact value gradients within 50 feet. Passive ability: Aetheric Resonance provides a +1 bonus to saving throws against illusion effects. Activatable ability: Aura Alignment (1/hour) grants a +3 insight bonus to Perception for 1 minute to pinpoint artifacts, followed by a -1 penalty to all checks for 5 rounds due to focus. Steam Record (2/day) adds a +2 insight bonus to Mysticism to document findings for 10 minutes, with a 20% chance of a Fortitude save (DC 17) or the device jams, becoming unusable for 1 hour in humid conditions if overused. Mechanism strain after 10 minutes requires a Will save (DC 19) or take 2d6 psychic damage. Balanced for Starfinder’s sci-fi magic with level and capacity limits.

Traveller (2nd Edition) – Compass of Aelric’s Path

  • Stat Block: Item, Tech Level 10, Cost 55,000 Cr, Mass 0.4 kg, Slot: Tool
  • Specific Game Mechanics: This tool slot device grants +2 DM (Difficulty Modifier) to Recon and Investigate checks for mapping magical artifact value gradients within 50 meters. Passive trait: Aetheric Resonance adds +1 DM to resist psionic or illusion effects. Activatable feature: Aura Alignment (1/hour) provides +3 DM to Recon for 6 minutes to pinpoint artifacts, but imposes -1 DM to all checks for 10 minutes due to focus. Steam Record (2/day) adds +2 DM to Investigate to document findings for 10 minutes, with a 20% chance of an ENDURANCE check (DM-2) or lose 1D3 Stamina if overused in humid conditions. Mechanism strain after 10 minutes requires an ENDURANCE check (DM-2) or suffer 2D6 damage. Balanced with Traveller’s tech focus by high cost and stamina penalty.

Warhammer 40,000 Roleplay: Wrath & Glory – Compass of Valyrn’s Lore

  • Stat Block: Item, Rarity 4, Requisition 25, Gear Slot: Tool, Power Requirement 1
  • Specific Game Mechanics: This tool slot item grants +Rank to Awareness and Scholastic Lore (Archaic) tests for mapping magical artifact value gradients within 50 meters. Passive ability: Aetheric Resonance adds +1 to Willpower tests against psychic illusions. Activatable ability: Aura Alignment (1/hour) grants +Rank+2 to Awareness for 1 minute to pinpoint artifacts, but imposes 1 Shock from focus strain. Steam Record (2/day) adds +Rank to Scholastic Lore (Archaic) to document findings for 10 minutes, with a 20% chance of a Toughness test (DN 4) or lose 1d3 Wounds if overused in humid conditions. Mechanism strain after 10 minutes requires a Willpower test (DN 5) or take 1d6 Corruption. Balanced for Warhammer’s grimdark tone with requisition cost and corruption risk.