Stop The Boomwright!
A Fleaspark Union festival caper in Velthuryn
Campaign Details
Complexity
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2/5
Levels
1–2
Author
Joe McMahon
Length
3-5 sessions or a one-shot
Hook
A griefglass-fueled invention festival, a self-proclaimed genius, and a reactor that might turn Brightcrawl into an artfully cratered memory.
Pitch
Brightcrawl is the beating, sparking, occasionally-on-fire heart of the Fleaspark Union, and tonight it’s hosting the legendary Patent Duel, the only civic event where competitive inventing, mild arson, and legal procedure are the same thing. But before the first boomstick can be unveiled, the judges mysteriously vanish, strange tremors shake the plaza, and someone starts replacing respected officials with suspiciously polite impostors. Rumor points to Grellix “Boomwright” Barmuzzle, a disgraced alchemist whose inventions usually end with apologies and craters. Now it’s up to a handful of brave (or deeply confused) heroes to sniff out the saboteur, out-invent a madman, and save a city where every street corner is either a workshop or an explosion hazard. Succeed, and Brightcrawl might just throw you a parade; fail, and… well, at least the fireworks will be spectacular.
Overview
<b>Velthuryn</b> is a world where magic saturates the land so thoroughly that even the mountains occasionally sigh, the rivers hum in harmony, and bits of ancient upheaval and trauma are evident in the form of glittering griefglass. Under the long arc of <b>Solivar</b>’s copper-gold light, glowshroom caverns sparkle during deepglow while griefglass shards catch every stray beam like tiny stars trapped in crystal. Scholars call griefglass a “dangerous metaphysical relic”, inventors call it “a power source with character flaws”, and adventurers mostly call it “something to pick up only after someone else touches it first.” It is a realm built for big emotions, bold action, and the sort of excitement that happens when meddling with forces that should absolutely be labeled, “Do Not Meddle.”
On <b>Velthuryn</b>’s western continent sprawls the <b>Fleaspark Union</b>, a confederation that thrives on invention, spectacle, and the unshakable belief that safety regulations are more like encouraging suggestions. Goblins, gnomes, ribbets, clanks, and a rotating cast of brave or bewildered outsiders fuel its relentless creativity. Here, caravans haul volatile prototypes across storm-green coasts, workshops ignite nightly for “testing purposes,” and the air is thick with the smell of ozone, steam, and questionable optimism. Explosions are so common that locals judge them not by severity but by artistry, and the unofficial civic motto remains “If it doesn’t blow up, it isn’t progress.”
At the heart of this controlled chaos sits <b>Brightcrawl</b>, the Union’s shiniest, loudest, and least fire-resistant jewel. Copper rooftops ring with the clatter of gearwork, thunder-cranes circle above in lazy spirals, and even the gutters whistle melodically when the wind hits at the right angle or wrong angle, depending on the original engineering specs. The city thrives on invention as performance: ideas are currency, applause carries political weight, and the justice system occasionally involves fireworks as evidentiary demonstration. Visitors quickly learn that Brightcrawl’s drizzle is flammable on festival days, and that locals consider this a charming quirk.
Because Brightcrawl values spectacle above safety, heroes in <b>Stop the Boomwright</b> gain access to the <b>Showmanship</b> mechanic: a system that rewards bold, flashy, hilarious, or cinematic actions with tangible benefits. Describe a dramatic flourish, deliver a triumphant monologue mid-leap, jury-rig a gadget with flair, or turn a near-disaster into slapstick brilliance, and the crowd responds...literally. A well-timed bit of flair can grant Hope, shift audience morale in your favor, or even sway onlookers who might otherwise be indifferent. In a city that treats applause like currency, being entertaining isn’t just fun; it’s a <b>tactical advantage</b>.
<b>Stop the Boomwright</b> invites players into Brightcrawl at the height of its most explosive season: the annual Patent Duel. During this celebration, inventors unveil their latest awe-inspiring, brilliant, some outrageous, many questionably legal devices and the entire city turns into a carnival of prototypes, pride, and competitive problem-making. Crowds surge through alleys lit by spark-lanterns, performers juggle alchemical charges, and the air vibrates with anticipation. Even before the festivities begin, you can feel the city leaning forward, waiting to see which invention will dazzle the crowds...and which one will scorch the plaza. It is an ideal moment for bold heroes to step in, whether as competitors, bodyguards, curious travelers, or people who simply took the wrong ferry and refuse to admit they’re lost.
Yet beneath all the color and comedy, there is the unmistakable pulse of opportunity, the sense that adventure lurks around every corner, waiting to be discovered or accidentally tripped over. The Union is infamous for sudden breakthroughs, strange accidents, unscheduled detonations, and inventions that mysteriously vanish into the night. In Brightcrawl, a single wrong lever pull could ignite a chain reaction, launch someone skyward, or open a path to unexpected heroism. The campaign offers players the chance to dive headfirst into this world of volatile creativity, forge connections in a city that applauds daring, and leave a mark on a place where every idea, no matter how small, has the potential to reshape the world or at least blow up in spectacular fashion.
Themes & Tone
Themes
Innovation vs catastrophe
Creativity as both empowerment and hazard
Pride
ego
Spectacle in a culture that worships invention
Touchstones
The Legend of Vox Machina
Treasure Planet
The Mitchells vs The Machines
Mystery Men
Player Principles
- Lean Into Spectacle - This campaign rewards bold choices, ridiculous stunts, and cinematic flair. If you can imagine the camera zooming in or the crowd shouting 'oooooh; you’re probably doing it right. Subtlety has its place but Brightcrawl loves a hero who makes an entrance.
- Embrace the Chaos - Things will explode, collapse, short-circuit, or start juggling themselves. Instead of resisting the madness treat it as an opportunity for improvisation and creativity. The more you adapt and roll with the sparks the more fun you’ll have.
- Collaborate Like Inventors - Think of the party as a workshop team: sketch wild ideas "combine abilities" and help each other refine or escalate plans. The most memorable success often comes from mixing everyone’s strengths into one gloriously untested solution. Even failures can turn into huge crowd-pleasing moments.
- Let the Crowd Guide Your Brilliance - The people of Brightcrawl are an audience as much as NPCs and their reactions can shift the tone of entire scenes. Play to them...show off, boast, charm, or improvise something impressive or hilarious. When you treat the city like a living stage the adventure becomes even more rewarding.
GM Principles
- Let Chaos Be the Baseline, Not the Distraction - Brightcrawl is noisy, unpredictable, and occasionally on fire but this chaos should support the story not swallow it. Use environmental mayhem as flavorful texture and a source of opportunities not as punishment. When in doubt let the explosions propel the story forward rather than derail it.
- Reward Bold Player Choices Immediately - This is a campaign where big swings should feel worth taking. Whenever players make theatrical, inventive, or wildly confident moves the world should respond: through Showmanship bonuses, crowd reactions, or narrative momentum. Even failures should produce interesting outcomes that fuel excitement instead of shutting down ideas.
- Make Every NPC a Fan, Critic, or Rival - People in Brightcrawl have opinions, flair, and absolutely no chill. Whether they cheer the heroes, boo them, try to sabotage them, or recruit them into questionable side hustles, NPCs should feel vibrant and reactive. Treat the whole city like a living audience that influences the tone and tension of the moment.
- Keep the Pace Fast and the Stakes Visible - This adventure shines when scenes transition quickly, consequences are clear, and each moment feels loaded with energy. Present problems the players can immediately engage with: sparking machines, panicked apprentices, alleyway clues, or crowds on the verge of frenzy. Let tension rise like a too-full boiler, building naturally toward a spectacular finale.
States
Fleaspark Union
Locations
None specified
Factions
None specified
NPCs
None specified