The Purple Gate Deal — An AI-Built Near-Future Roleplay in Neta-Xiuhan
Final Product: The Purple Gate Deal
Cover
The 16:9 key-art cover, painted for this story in the world’s own near-future port-city art direction with GPT Image 2: three figures stand at the rim of a flooded chamber far beneath Deep Water Port, reaching toward the same monolithic violet gate — a vertical pool of purple light in a rusted frame — while the container cranes and stacked towers of the harbour city glow above through the grate.
Gameplay
The roleplay exactly as it loads in the browser at neta.art: the title card — “The Purple Gate Deal” over the blurred key art — the one-line premise (“In the sewers beneath Deep Water Port, three parties reach for the transit rights to the same purple gate — and you are pulled into a deal that has not been signed yet.”) and the Start Adventure button.
Gameplay
Setting up the first beat: the optional first input opens on “You decide how the story begins…”, and the Act-as menu lists the playable roles — Creator, Shen Lan, He Yu, Lao Luo — above the Start Adventure control. This is where the Player writes the opening move, and the live AI writes the next scene from there.
Gameplay
In play — here entering the tunnels as Shen Lan: a painted character portrait on the left, the premise and the opening beats on the right, a character-voiced line from Lao Luo in the dialogue bubble, and three suggested moves above the free-text box (“Enter your idea…”). The AI agent answers in the characters’ own voices and quietly moves the deal.
The Purple Gate Deal (紫门交易) is a playable near-future roleplay — a private negotiation caught in its last unsigned hour, written and directed live by AI and running in your browser with nothing to install.
Three parties want the same thing tonight. Shen Lan, the sharp, unhurried negotiator for the Viscept consortium, holds the paperwork and the patience. He Yu, night-shift inspector of the Deep Water Port Authority, signs what crosses the seawall and has signed nothing about the gate. And Lao Luo, broker of the sewer guild, sells the transit chits that keep the tunnels quiet — while Ah Wu, the gate’s keeper, listens to all of them from the water.
From the first line the deal is yours to play. Answer in your own words, or tap one of the suggested moves, and a live AI agent writes the next beat and keeps everyone in character. Threads run underneath — who actually holds the gate’s transit papers, who leaked the survey, why the inspector will not name a price, and what the gate itself is for — each with its own clues, discoveries and consequences. Play The Purple Gate Deal →
Game Features
- Live LLM Narrative Direction — nothing here is a fixed script. A deepseek-v4-flash agent reads your action, keeps Shen Lan, He Yu, Lao Luo and Ah Wu in voice, and writes the next beat, the subtext and the suggested moves as you play. The same agent drafted the premise, the prologue and the deal’s threads from a single world prompt.
- Three Parties, One Unsigned Deal — the consortium negotiator, the Authority inspector and the sewer broker each want the gate’s transit rights for a different reason, and each will test you differently. There is no tidy branch that makes all three happy at once; the deal you reach is the one you actually negotiate.
- Answer In Your Own Words — Or Tap A Move — type any action into the free-text box, or pick one of the suggested moves: ask who really holds the papers, offer the broker a counter-deal, follow the inspector out to the seawall, or say nothing and watch who moves first. Every choice lands differently, and each character remembers what you chose.
- Investigable Threads Beneath The Surface — who holds the gate’s transit papers, who leaked the survey to the guild, why the inspector refuses to name a price, what the transit chits actually buy, and what the gate is for. Each thread carries clues, actions, discoveries and consequences that change the ending you can reach.
- A Standing Instrument, Not A Score — each party’s trust moves in real time as the deal tightens, and a turn log keeps every beat you have played. Save progress, restart the night, and choose an ending: walk the deal back to zero, sign with one party and burn the others, or hand the gate to the one person nobody negotiated with.
- Painted Portraits And Scenes, Zero Install — the world’s character cards were cut out with birefnet-general into true transparent PNGs, so Shen Lan, He Yu, Lao Luo and Ah Wu stand cleanly over the flooded tunnels, the gate chamber and the bonded archive. The whole story is a mobile-first page — free to start, nothing to download.
Character Sprites
Sprite
Shen Lan, lead negotiator for the Viscept consortium: Chinese, early thirties, a sharp dark chin-length bob, a tailored charcoal trench over a slate-grey shirt, a slim tablet in one hand and a calm, assessing gaze. Cut out with BiRefNet into a true transparent PNG so she composites cleanly over any scene in the story.
Sprite
He Yu, night-shift inspector of the Deep Water Port Authority: Chinese, in his forties, greying at the temples, a double-breasted navy greatcoat with high-visibility piping and the harbour-authority badge on the left arm, arms folded, wary. Cut out with BiRefNet into a transparent PNG for the seawall, the archive and the tunnels alike.
Sprite
From the wider Neta-Xiuhan cast: Lao Luo, broker of the sewer guild — weathered, in his fifties, an oilskin jacket, fingerless gloves and a waterproof satchel of stamped transit chits at his hip, wearing the sly, patient half-smile of a man who has survived every deal but this one. Cut out with BiRefNet into a transparent PNG.
Sprite
From the wider Neta-Xiuhan cast: Ah Wu, keeper of the gate — young, cropped bleached hair with a violet streak, a technical harness over a graphite hoodie, an AR monocle over one eye and one hand raised as if beckoning someone into the water. Cut out with BiRefNet into a transparent PNG any story in the world can draw on.
Production Process Breakdown
Stage 1: World Buildingdeepseek-v4-flash
The world “Neta-Xiuhan” set the house direction — a 2026 harbour megacity, operational and corporate in tone, with a practical, paperwork-first kind of sci-fi. From a single world prompt the AI built the city, its consortium and its Authority, and the canon of people, locations, factions and rules that every story in the world draws from.
The world “Neta-Xiuhan” set the house direction — a 2026 harbour megacity, operational and corporate in tone, with a practical, paperwork-first kind of sci-fi. From a single world prompt the AI built the city, its consortium and its Authority, and the canon of people, locations, factions and rules that every story in the world draws from.
Stage 2: Roleplay & Story Draftingdeepseek-v4-flash
From a one-line premise the agent wrote the playable spine of The Purple Gate Deal: the last-unsigned-hour opening beat, the three-way relationship between the consortium, the Authority and the sewer guild, and investigable threads — the transit papers, the leaked survey, the inspector’s silence, the transit chits and the gate itself — each with clues, actions, discoveries and consequences, plus six locations from the flooded tunnels to the bonded archive.
From a one-line premise the agent wrote the playable spine of The Purple Gate Deal: the last-unsigned-hour opening beat, the three-way relationship between the consortium, the Authority and the sewer guild, and investigable threads — the transit papers, the leaked survey, the inspector’s silence, the transit chits and the gate itself — each with clues, actions, discoveries and consequences, plus six locations from the flooded tunnels to the bonded archive.
Stage 3: Character Portrait Artgpt-image-2
Each character was painted as a full-body portrait card in the world’s own near-future port-city art direction — Shen Lan in a charcoal trench with violet piping, He Yu in the Authority greatcoat, Lao Luo in oilskins with his satchel of chits, Ah Wu in technical harness and AR monocle — so every character keeps one consistent, believable face across the whole world.
Each character was painted as a full-body portrait card in the world’s own near-future port-city art direction — Shen Lan in a charcoal trench with violet piping, He Yu in the Authority greatcoat, Lao Luo in oilskins with his satchel of chits, Ah Wu in technical harness and AR monocle — so every character keeps one consistent, believable face across the whole world.
Stage 4: Scene & Location Artgpt-image-2
The night itself was painted as cinematic scene plates: the flooded sewer junction under the old port, the gate chamber with its vertical pool of violet light, the Authority’s night office over the container terminal, the floating night market, the sub-level telemetry control room and the bonded customs archive — backgrounds with the lower third kept calm for dialogue.
The night itself was painted as cinematic scene plates: the flooded sewer junction under the old port, the gate chamber with its vertical pool of violet light, the Authority’s night office over the container terminal, the floating night market, the sub-level telemetry control room and the bonded customs archive — backgrounds with the lower third kept calm for dialogue.
Stage 5: Transparent Cut-Outbirefnet-general
Each portrait card was background-removed with BiRefNet into a true transparent PNG, so Shen Lan, He Yu, Lao Luo and Ah Wu composite cleanly over any painted scene without a white box — in the tunnels, the gate chamber, the harbour office and the archive alike.
Each portrait card was background-removed with BiRefNet into a true transparent PNG, so Shen Lan, He Yu, Lao Luo and Ah Wu composite cleanly over any painted scene without a white box — in the tunnels, the gate chamber, the harbour office and the archive alike.
Stage 6: Visual QA & One-Click Publishneta-studio
The build was checked in-browser — role selection, sprite scale, text contrast in dark and light, and the live turn flow — then published in one click to a shareable play link, with the world’s portraits, scene plates and prompts left reusable by any fork.
The build was checked in-browser — role selection, sprite scale, text contrast in dark and light, and the live turn flow — then published in one click to a shareable play link, with the world’s portraits, scene plates and prompts left reusable by any fork.
Scene Backgrounds
BG
The Deep Water Port Sewer Junction — branching storm tunnels at half-tide, ankle-deep black water, flickering sodium work-lamps, iron ladders and a single violet glow far down one branch. The ground under the whole deal, and where the first unsigned hour of The Purple Gate Deal is played.
BG
The Purple Gate Chamber — a vast sub-level hall holding the gate itself: a vertical pool of violet light set in a rusted steel frame, black water reflecting every lamp, catwalks and warning lights ringing the chamber. The object all three parties will do anything to hold the papers to.
BG
The Port Authority Night Office — banks of wall monitors over a rain-slick container terminal, abstract shipping charts, cold fluorescent light and rain on the glass. He Yu’s desk: the place the deal cannot be legalised, and the place it can be buried.
BG
The Floating Night Market — neon food stalls on barges above the harbour, wet timber planks, gantry cranes and drizzle, warm lantern light against the cool harbour blue. Where the guild does the business it never puts on paper, and where a counter-deal gets its first hearing.
BG
The Sub-level Telemetry Control Room — a crescent of curved screens tracing abstract gate field lines and waveforms, empty swivel chairs and cable trays overhead. The quiet room where the gate’s true capacity is legible, and where the lie about the transit rights comes apart.
BG
The Bonded Customs Archive — floor-to-ceiling shelving of sealed crates and docket files deep under the port, one caged work-lamp and dust in the beam. The survey, the seals and the missing signature all live here, if you can get to them before the inspector does.
Asset Prompts
Cover Key-Art Promptgpt-image-2
"Cinematic 16:9 game cover key art for 'The Purple Gate Deal', a near-future port-city roleplay. Three silhouetted negotiators stand at the rim of a flooded sewer chamber beneath Deep Water Port, reaching toward a monolithic glowing violet teleport gate rising from black water, its surface a vertical pool of purple light. Cinematic near-future port-city realism, grounded corporate sci-fi in a Hong Kong-style harbour megacity at night, cool desaturated teal-and-slate palette with a single luminous violet accent, volumetric haze, wet surfaces, photoreal, filmic color grading. Dramatic low angle, moist concrete, sodium work-lamps, cargo cranes and harbour skyline glimpsed above through a grate. No text, no watermark, no logo."
"Cinematic 16:9 game cover key art for 'The Purple Gate Deal', a near-future port-city roleplay. Three silhouetted negotiators stand at the rim of a flooded sewer chamber beneath Deep Water Port, reaching toward a monolithic glowing violet teleport gate rising from black water, its surface a vertical pool of purple light. Cinematic near-future port-city realism, grounded corporate sci-fi in a Hong Kong-style harbour megacity at night, cool desaturated teal-and-slate palette with a single luminous violet accent, volumetric haze, wet surfaces, photoreal, filmic color grading. Dramatic low angle, moist concrete, sodium work-lamps, cargo cranes and harbour skyline glimpsed above through a grate. No text, no watermark, no logo."
Shen Lan Character-Portrait Promptgpt-image-2
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: Shen Lan, lead negotiator for the Viscept consortium, Chinese woman in her early thirties, sharp dark chin-length bob, tailored charcoal trench coat over a slate-grey shirt, calm assessing gaze, holding a slim tablet. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: Shen Lan, lead negotiator for the Viscept consortium, Chinese woman in her early thirties, sharp dark chin-length bob, tailored charcoal trench coat over a slate-grey shirt, calm assessing gaze, holding a slim tablet. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
He Yu Character-Portrait Promptgpt-image-2
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: He Yu, night-shift inspector of the Deep Water Port Authority, Chinese man in his forties, short cropped greying hair, double-breasted navy greatcoat with high-visibility piping and a harbour-authority badge, arms folded, wary expression. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: He Yu, night-shift inspector of the Deep Water Port Authority, Chinese man in his forties, short cropped greying hair, double-breasted navy greatcoat with high-visibility piping and a harbour-authority badge, arms folded, wary expression. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
Lao Luo Character-Portrait Promptgpt-image-2
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: Lao Luo, the broker of the sewer guild, weathered Chinese man in his fifties, oilskin jacket, fingerless gloves, a waterproof satchel of stamped token chits at his hip, sly patient half-smile. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: Lao Luo, the broker of the sewer guild, weathered Chinese man in his fifties, oilskin jacket, fingerless gloves, a waterproof satchel of stamped token chits at his hip, sly patient half-smile. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
Ah Wu Character-Portrait Promptgpt-image-2
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: Ah Wu, keeper of the gate, young woman in her twenties, cropped bleached hair with a violet streak, technical harness over a graphite hoodie, AR monocle over one eye, one hand raised as if beckoning. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
"Full-body character reference portrait on a plain flat light-grey seamless studio background, centered, entire figure visible with margin: Ah Wu, keeper of the gate, young woman in her twenties, cropped bleached hair with a violet streak, technical harness over a graphite hoodie, AR monocle over one eye, one hand raised as if beckoning. Cinematic near-future port-city realism, character-sheet lighting, crisp silhouette, no text, no watermark."
Purple Gate Chamber Scene-Plate Promptgpt-image-2
"Cinematic 16:9 scene background: a vast subterranean chamber housing a monolithic violet teleport gate - a vertical pool of purple light inside a rusted steel frame, black water reflections, catwalks and warning lamps. Cinematic near-future port-city realism, Hong Kong-style harbour megacity at night, cool desaturated teal-and-slate palette with a single luminous violet accent, volumetric haze, wet surfaces, photoreal, filmic color grading. Empty scene, no people, no readable text."
"Cinematic 16:9 scene background: a vast subterranean chamber housing a monolithic violet teleport gate - a vertical pool of purple light inside a rusted steel frame, black water reflections, catwalks and warning lamps. Cinematic near-future port-city realism, Hong Kong-style harbour megacity at night, cool desaturated teal-and-slate palette with a single luminous violet accent, volumetric haze, wet surfaces, photoreal, filmic color grading. Empty scene, no people, no readable text."
Sewer Junction Scene-Plate Promptgpt-image-2
"Cinematic 16:9 scene background: a deep-water sewer junction beneath an old port, branching storm tunnels, ankle-deep black water, flickering sodium work-lamps, iron ladders, distant violet glow down one branch. Near-future port-city realism, cool desaturated teal-and-slate palette with a single luminous violet accent, photoreal, filmic color grading. Empty scene, no people, no readable text, lower third calm for dialogue."
"Cinematic 16:9 scene background: a deep-water sewer junction beneath an old port, branching storm tunnels, ankle-deep black water, flickering sodium work-lamps, iron ladders, distant violet glow down one branch. Near-future port-city realism, cool desaturated teal-and-slate palette with a single luminous violet accent, photoreal, filmic color grading. Empty scene, no people, no readable text, lower third calm for dialogue."
Transparent Cut-Out Passbirefnet-general
Each finished character card is passed through BiRefNet (birefnet-general) on its reference URL to produce a true transparent PNG with the figure cleanly masked — no halo, no white box — ready to composite over any of the world’s painted scene plates.
Each finished character card is passed through BiRefNet (birefnet-general) on its reference URL to produce a true transparent PNG with the figure cleanly masked — no halo, no white box — ready to composite over any of the world’s painted scene plates.
Why Choose Neta Studio
Professional — a cloud harness runs the whole production from world building to roleplay direction to publishing, with no local setup. Stable access to the latest models: GPT Image 2 · BiRefNet · deepseek-v4-flash.
One-click generation — officially tuned skills drive every step: world building, roleplay drafting, portrait and scene generation, transparent cut-outs, in-browser visual QA and one-click publishing, with world fork and resource sharing built in — so every portrait, scene plate and prompt in this story is reusable in your own world.
Community-first — users build unlimited worlds, and every public world can be forked, remixed and reimagined. Start from Neta-Xiuhan, or begin fresh from any idea — a one-line prompt is enough.
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The Purple Gate Deal was generated by Neta Studio AI from a single world prompt — the world took minutes, the roleplay and the artwork took minutes. You can do it too — adapt Neta-Xiuhan or start fresh from any idea. No coding required, free to start.
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