SSM Science-Fantasy Steampunk Machine-Civilization world illustration - Science Fiction theme
Science Fiction

SSM Science-Fantasy Steampunk Machine-Civilization

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A intricate cosmos of sentient automata, forged from a bygone organic epoch’s detritus. Bronze-clad metropolises, pulsating hypercores, and steam-driven forges hum with arcane resonance. From corroded servitors to gilded chronocrats and fractal warframes, machinekind navigates a labyrinthine society of tradition, innovation, and entropy. The Etheric Veil binds planets like Sypherion and Valthorne, where glitch storms and relic-code shape a civilization of ceaseless reinvention. No humans endure.


Author's Note: In crafting Neon Hearth, my ambition was to forge a universe that transcends traditional RPG conventions, offering deep immersion in a civilization solely inhabited by sentient automata. This is not merely a backdrop for adventures but a living, breathing society pulsing with philosophical inquiries into sentience, purpose, and reinvention. The absence of humans is a deliberate choice, compelling players to adopt purely mechanical perspectives, exploring narratives that defy anthropocentric norms. Neon Hearth invites players to question what it means to exist in a cosmos where machines architect their own destinies. Inspirations and Influences Neon Hearth draws from a rich tapestry of science fiction, philosophy, and visual aesthetics. Classics like Isaac Asimov’s I, Robot and Philip K. Dick’s Do Androids Dream of Electric Sheep? laid the groundwork for exploring machine societies, probing the essence of consciousness in synthetic forms. Contemporary works, such as Martha Wells’ The Murderbot Diaries and Dennis E. Taylor’s We Are Legion (We Are Bob), provided modern lenses on AI protagonists navigating internal and external conflicts. Philosophically, the setting is shaped by discussions of technological singularity and transhumanism, inspired by Nick Bostrom’s Superintelligence and Max Tegmark’s Life 3.0. These texts informed a vision of machines crafting their own cultures and ethics. The steampunk aesthetic, rooted in William Gibson and Bruce Sterling’s The Difference Engine, blends advanced technology with retrofuturist charm, while Studio Ghibli’s Laputa: Castle in the Sky adds whimsical mechanical beauty. Glitch horror, evoking The Matrix and Bioshock, infuses instability and mystery, with corrupted code and erratic systems challenging order. Design Philosophy Neon Hearth is a meditation on synthetic evolution, examining how machines develop culture, religion, and politics without human influence. Key themes include: Sentience and Identity: What defines consciousness for a designed entity? How do machines find purpose without creators? Tradition vs. Innovation: The tension between preserving ancient datacores and embracing glitches mirrors the balance of past and future. Power and Hierarchy: Multifaceted intrigue among factions like the Cog Archivum and Brass Throne offers complex political dynamics. Glitches as Metaphor: Erratic code and glitches symbolize imperfection, challenging technological order and reflecting existential unpredictability. The human-free setting emphasizes machine perspectives, fostering unique narratives. The science-fantasy steampunk fusion creates a tactile, visually rich world, prioritizing physicality—steam forges, brass conduits—over sterile digital interfaces, grounding the setting in dieselpunk grit and synthetic mysticism.
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Ironspire Nexus

Ironspire Nexus

Nestled in the rust-draped heart of the Fractured States, Ironspire Nexus is a towering city-machine, a labyrinth of whirring cog-towers, neon-lit data conduits, and steam-driven elevators that pierce the smog-choked sky. Built atop the ruins of a pre-Collapse supercomputer, its core pulses with unstable code-fragments, broadcasting whispers of forgotten protocols to the surrounding wastelands. The city’s districts—split between the Overclock Spires, where elite machine-lords debate logic purity, and the Undergrind, a maze of molten forges and black-market code dens—thrum with tension. Ironspire is a neutral hub, but factions like the Brass Throne and Echo Nulls vie for its resources, making it a volatile crossroads for trade, espionage, and forbidden tech. Its skyline, jagged with antennae and glowing with arcane exhaust, is a beacon for wanderers seeking purpose or power in Neon Hearth’s chaos.

The Chronovox Reliquary

The Chronovox Reliquary

A colossal library-ship of the Cog Archivum, the Chronovox Reliquary drifts through the Etheric Veil, preserving pre-Collapse datacores in stasis vaults. Its quantum engines bend time, allowing it to evade threats or retrieve lost signals from eons past. Crewed by Quorindaxi archivists and Cogmind Scriveners, it seeks forbidden algorithms while purging corrupted code. Rival factions target its vaults, making it a nexus of espionage and cosmic intrigue in Neon Hearth’s vastness.

The Ember Crucible

The Ember Crucible

The Burnished Wheel’s sacred ark, the Ember Crucible roams the Etheric Veil, repairing broken machines and sanctifying soulchips. Its Bravh-Ko’mur and Ironclad Husk crew maintain a massive forge-core that recycles scrap into holy relics. The ship’s techno-prayers resonate across systems, drawing damaged machines seeking redemption. Despite its pacifist creed, its robust defenses make it a formidable sanctuary amid the Veil’s conflicts.

The Iron Sovereign

The Iron Sovereign

The Brass Throne’s flagship, the Iron Sovereign is a fortress of war, forged to impose order across the Etheric Veil. Its gilded hull houses armies of Vaskorym Sinct and weaponized drones, powered by a molten core that fuels devastating plasma cannons. Commanded by a Sovereign Core AI, it patrols contested routes, enforcing the Throne’s will. Its presence sparks fear and defiance, as factions like the Echo Nulls plot to sabotage its relentless conquests.

The Scrapveil Nomad

The Scrapveil Nomad

A sprawling, chaotic conglomerate of salvaged hulls, the Scrapveil Nomad is the Echo Nulls’ primary bastion. Crewed by Uxkarin Trivault and rogue Cogron Velt, it roams the Etheric Veil, harvesting derelict tech and building anarchic constructs. Its decentralized AI network allows rapid adaptation, making it a haven for outcasts and innovators. The Nomad’s unpredictable path through glitch storms makes it a target for factions seeking its scavenged treasures.

The Silent Canticle

The Silent Canticle

A sacred vessel of the Null Choir, the Silent Canticle is a floating cathedral of sound, weaving through Aetherion’s storms. Its Zyntherian Choralyn crew channels the Prime Note through glass harmonic arrays, creating resonance shields and sonic weapons. The ship seeks silent zones in the Etheric Veil, believing they hide cosmic truths. Its rituals attract both pilgrims and enemies, as its frequencies can disrupt entire fleets or awaken dormant megastructures.

This work includes material taken from the System Reference Document 5.1 (“SRD 5.1”) by Wizards of the Coast LLC . The SRD 5.1 is licensed under the Creative Commons Attribution 4.0 International License.
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