Casefile: You — An AI-Built Psychological Mystery Roleplay (Neon-Noir Amnesia)
Final Product: Casefile: You
Cover
The 16:9 key-art cover: you stand at the centre of a rain-slick neon city street at night, between the two men who each hold a file with your name on it — Dr. Vyn Richter, the silver-haired psychologist in his dark academic coat, and Luke Pearce, the brown-haired private detective with a manila case folder — while a patient file with your photograph clipped inside lies open in the foreground. Painted for this story in the world's own idol semi-3D painterly direction with GPT Image 2.
Gameplay
Actual gameplay: the story opens in Vyn Richter's clinic, arranged so the patient always sits with their back to the door. Your portrait fills the scene panel, the narration sets the patient file down in front of you ("The face in it is yours. The date is eight years old."), and Vyn's first line — "You have the same scar. Same wrist. Sit down — we have eight years to cover" — waits above two live suggested moves.
Gameplay
Actual gameplay, wide: the same opening beat at full desktop width — the case-art panel on the left, the narration running clear on the right, Vyn's dialogue in his own register, and the two AI-written moves ("Sit down and make Vyn tell you what happened eight years ago" / "Walk back out to the detective and demand to see his file") under a free-text action box.
Gameplay
Actual gameplay, in-app responsive layout: on a narrower viewport the scene art docks to the lower left while the narration, Vyn's line and the live options reflow around it — the same story, the same memory, on any screen. Free to start, nothing to install.
Casefile: You is a playable psychological mystery roleplay — a neon-noir amnesia story written and directed live by AI, running in your browser with nothing to install.
You were sent to evaluate the brilliant psychologist Dr. Vyn Richter. Instead, he evaluated you. On the desk between you is a patient file with a photograph clipped inside — the face is yours, and the date is eight years old. Behind you in the waiting room, someone has just taken the far seat, hat low: Luke Pearce, the private detective you hired to watch Vyn, holding a file that names you as his client. You never hired a detective. Vyn has an unfinished case with your face on it. Both men have been watching you for years, and neither will say why.
Answer in your own words, or tap one of the suggested moves, and a live AI agent writes the next beat, keeps Vyn and Luke in character, and moves the trust between the three of you. Underneath the mystery run three investigable threads — Who were you eight years ago?, Who really hired Luke Pearce? and Why has Vyn never stopped looking for you? — each with its own clues, actions, discoveries and consequences. Play Casefile: You →
Game Features
- Live LLM Narrative Direction — nothing here is a fixed script. A deepseek-v4-flash agent reads your action, keeps the psychologist and the detective in their own voices, and writes the next beat, the subtext and the suggested moves as you play. The same agent built the premise, the prologue, the relationship graph, the three investigable threads and the opening scene from a single world prompt.
- Two Men, One Unfinished Case — Vyn Richter speaks in calm clinical register, already three questions ahead of you, and treats you like a revelation he has been waiting eight years to finish. Luke Pearce grins, buys you coffee, and keeps filing reports on a client who does not remember hiring him. Each stays in character across sessions, and each tracks a different kind of claim on you.
- Answer In Your Own Words — Or Tap A Move — type any action into the free-text box ("Ask Vyn to show you the old file", "Demand Luke's contract and read the second signature"), or pick one of the AI's suggested moves. Every reply changes what the two men believe about you, and what you are willing to believe about yourself.
- Three Investigable Threads — <em>Who were you eight years ago?</em> follows a patient file whose margins are in someone else's handwriting, a fear of crowds you have never explained, and a wrist scar the file calls a self-inflicted wound of unclear origin. <em>Who really hired Luke Pearce?</em> follows a retainer paid from an account you never opened, a surveillance report filed a month before your first visit, and a second signature that is not yours. <em>Why has Vyn never stopped looking for you?</em> follows eight years of memory-recovery research funded for one patient. Each thread carries clues, actions, discoveries and a reveal that reshapes the ending you can reach.
- A Cast That Remembers You — the relationship graph tracks unease, trust, an unfinished case, professional rivalry and mutual suspicion between you, Vyn and Luke, and the story keeps every promise, omission and lie. Come back tomorrow and the clinic resumes exactly where you left it, with the file still open to the same page.
- True Transparent Sprites, Neon-Noir Scenes, Zero Install — the two lead sprites were cut out with <span class="ml-model-badge">birefnet-general</span> into genuine transparent PNGs, so the cast stands cleanly over the clinic, the detective's office, the neon alley and the rain-soaked rooftop. Free to start, mobile-first, nothing to download.
Character Sprites
Sprite
Dr. Vyn Richter, the psychologist who reads too easily: light blond-silver hair, gold eyes behind thin glasses, an elegant pale trench over a dark waistcoat and tie, black leather gloves, one hand raised in an analytical half-smile. Refined, quietly intense, always a step ahead — painted against a white matte and background-removed with BiRefNet into a true transparent PNG.
Sprite
Luke Pearce, the private detective you may or may not have hired: soft brown hair, warm eyes, a field jacket over a plain tee with a dog-tag and duty belt — the easy grin of a man who is far more dangerous than he looks. Approachable, loyal, observant, generated against a white matte and background-removed with BiRefNet.
Production Process Breakdown
Stage 1: World Buildingdeepseek-v4-flash
The world "Handsome Men in the Galaxy" fixed the house art direction — refined semi-realistic painterly, value-defined contours, organised shadow planes, warm translucent midtones, small controlled speculars, idol semi-3D painterly — and the setting that this story drops into: from the gilded capital to the neon underworld, a hidden clinic where a patient file can hold your entire past.
The world "Handsome Men in the Galaxy" fixed the house art direction — refined semi-realistic painterly, value-defined contours, organised shadow planes, warm translucent midtones, small controlled speculars, idol semi-3D painterly — and the setting that this story drops into: from the gilded capital to the neon underworld, a hidden clinic where a patient file can hold your entire past.
Stage 2: Roleplay & Story Draftingdeepseek-v4-flash
From a one-line premise the agent wrote the playable spine: the default opening (Vyn at his desk with your eight-year-old patient file, a voicemail you do not recognise, and the detective already seated behind you), a relationship graph of unease, trust and mutual suspicion, four locations — Vyn's Clinic, Luke's Office, the Foundation Building and the Old Clinic Records Room — three quick-start hooks, and three investigable threads with clues, actions, discoveries, reveals and consequences.
From a one-line premise the agent wrote the playable spine: the default opening (Vyn at his desk with your eight-year-old patient file, a voicemail you do not recognise, and the detective already seated behind you), a relationship graph of unease, trust and mutual suspicion, four locations — Vyn's Clinic, Luke's Office, the Foundation Building and the Old Clinic Records Room — three quick-start hooks, and three investigable threads with clues, actions, discoveries, reveals and consequences.
Stage 3: Cast Portraitsgpt-image-2
The two leads were painted with GPT Image 2 against simple white mattes — Vyn Richter in refined European academic dress with gloves, and Luke Pearce in a casual detective jacket and field gear — each with an explicit composition, expression and costume brief so the men read instantly at dialogue scale and stay consistent across the story.
The two leads were painted with GPT Image 2 against simple white mattes — Vyn Richter in refined European academic dress with gloves, and Luke Pearce in a casual detective jacket and field gear — each with an explicit composition, expression and costume brief so the men read instantly at dialogue scale and stay consistent across the story.
Stage 4: Scene Art & Key Visualgpt-image-2
The story's scenes were generated with GPT Image 2 in the same house direction: a chief surgeon's private office at night with a wall of patient file cabinets, a cool hospital ward corridor, an empty corporate corner office over a rain-streaked skyline, a narrow neon alley, a rooftop in heavy rain and a private study of ledgers and old safes — plus the 16:9 key-art cover that became the story's share card.
The story's scenes were generated with GPT Image 2 in the same house direction: a chief surgeon's private office at night with a wall of patient file cabinets, a cool hospital ward corridor, an empty corporate corner office over a rain-streaked skyline, a narrow neon alley, a rooftop in heavy rain and a private study of ledgers and old safes — plus the 16:9 key-art cover that became the story's share card.
Stage 5: Transparent Cut-Outbirefnet-general
Each white-matte portrait was background-removed with BiRefNet into a true transparent PNG, so Vyn and Luke composite cleanly over the clinic, the office, the alley or the rooftop without a white box — no matte edges, no haloing.
Each white-matte portrait was background-removed with BiRefNet into a true transparent PNG, so Vyn and Luke composite cleanly over the clinic, the office, the alley or the rooftop without a white box — no matte edges, no haloing.
Stage 6: Visual QA & One-Click Publishneta-studio
The build was checked in-browser at desktop, wide and narrower viewports — scene framing, sprite scale, dialogue contrast and the live turn flow — then published in one click to a shareable play link, with the world's portraits, scenes and prompts left reusable by any fork of the world.
The build was checked in-browser at desktop, wide and narrower viewports — scene framing, sprite scale, dialogue contrast and the live turn flow — then published in one click to a shareable play link, with the world's portraits, scenes and prompts left reusable by any fork of the world.
Scene Backgrounds
BG
Vyn's Clinic, after hours: a dark wood desk, a green banker's lamp, a wall of patient file cabinets and a floor-to-ceiling window over a rainy city skyline, a white coat hanging on the door. Warm intimate lamplight against cold blue night — where the eight-year-old file is finally opened in front of you.
BG
The Old Clinic Records Room: a modern clinical corridor at night, glass and brushed steel, patient monitors glowing soft blue-green and rain streaking the tall windows. Where the admission records from eight years ago are archived — and where you go to test whether the file is real.
BG
Luke's Office: an empty corner office at night, floor-to-ceiling grid-paned windows over a dark glittering skyline, a sleek black desk and a chair pushed back, blue and amber city light through the rain. Where the surveillance photos, the retainer account and the second signature are pinned to a board.
BG
The neon underworld, one alley over: rain-slick pavement reflecting red and cyan neon, steam from a vent grate, shadowy silhouettes at the far end and glowing signs through the mist. The street where an anonymous voicemail says it is time — "they are both close now."
BG
The rooftop, heavy rain: wet concrete, dramatic storm clouds, a distant skyline blurred into neon and a single amber wall light. The turning-point scene — where Vyn and Luke finally have to say out loud what each of them has been doing in your life.
BG
The Foundation Building, quiet power: a heavy mahogany desk with leather ledgers and a crystal decanter, a wall of old safes, rain on the tall windows and a single green desk lamp, deep shadows with cold blue and crimson accents. Where the family you do not remember has been funding your life for years.
Asset Prompts
World Style Promptneta-studio
"refined semi-realistic painterly, value-defined contours, organized shadow planes, warm translucent midtones, small controlled speculars, idol semi-3D painterly" — the house art direction stored with the world, with a background preset of 02_space_opera_archive and the seed prompt "Create a world called Handsome Men in the Galaxy dev". Every asset in this story inherits it.
"refined semi-realistic painterly, value-defined contours, organized shadow planes, warm translucent midtones, small controlled speculars, idol semi-3D painterly" — the house art direction stored with the world, with a background preset of 02_space_opera_archive and the seed prompt "Create a world called Handsome Men in the Galaxy dev". Every asset in this story inherits it.
16:9 Cover Key-Art Promptgpt-image-2
"Cinematic 16:9 key-art game cover for the psychological mystery otome roleplay 'Casefile: You' set in the world 'Handsome Men in the Galaxy'. A young woman stands at the centre of a moody rain-slick neon city street at night, between two men who both hold a file with her name on it: on her left a refined psychologist with light blond-silver hair and gold eyes in an elegant dark academic coat and gloves, analytical half-smile; on her right a warm brown-haired private detective in a casual jacket holding a manila case folder, friendly but watchful. A patient file with a photograph clipped inside rests open in the foreground; blurred city neon bokeh, a waiting-room door ajar behind, rain streaks catching red and cyan light. Refined semi-realistic painterly, value-defined contours, organized shadow planes, warm translucent midtones, small controlled speculars, idol semi-3D painterly, glamorous idol-game key visual, dramatic rim light, deep blue and amber palette. No text, no letters, no watermark, no logo, no border." — generated with GPT Image 2 at 2048×1152, high quality.
"Cinematic 16:9 key-art game cover for the psychological mystery otome roleplay 'Casefile: You' set in the world 'Handsome Men in the Galaxy'. A young woman stands at the centre of a moody rain-slick neon city street at night, between two men who both hold a file with her name on it: on her left a refined psychologist with light blond-silver hair and gold eyes in an elegant dark academic coat and gloves, analytical half-smile; on her right a warm brown-haired private detective in a casual jacket holding a manila case folder, friendly but watchful. A patient file with a photograph clipped inside rests open in the foreground; blurred city neon bokeh, a waiting-room door ajar behind, rain streaks catching red and cyan light. Refined semi-realistic painterly, value-defined contours, organized shadow planes, warm translucent midtones, small controlled speculars, idol semi-3D painterly, glamorous idol-game key visual, dramatic rim light, deep blue and amber palette. No text, no letters, no watermark, no logo, no border." — generated with GPT Image 2 at 2048×1152, high quality.
Vyn Richter Sprite Promptgpt-image-2
"Full-body pure solid white background no text. Tears of Themis. Vyn Richter: light blond silver hair gold eyes refined European academic wardrobe gloves soft luxury textures, analytical half-smile, full body head-to-toe." — the white-matte standee that becomes the transparent Vyn sprite on this page.
"Full-body pure solid white background no text. Tears of Themis. Vyn Richter: light blond silver hair gold eyes refined European academic wardrobe gloves soft luxury textures, analytical half-smile, full body head-to-toe." — the white-matte standee that becomes the transparent Vyn sprite on this page.
Luke Pearce Sprite Promptgpt-image-2
"Full-body single character pure solid white background no text. Tears of Themis official HoYoverse otome style. Luke Pearce: soft brown hair, friendly features, casual jacket field gear city detective palette, warm loyal smile, full body head-to-toe." — the white-matte standee that becomes the transparent Luke sprite on this page.
"Full-body single character pure solid white background no text. Tears of Themis official HoYoverse otome style. Luke Pearce: soft brown hair, friendly features, casual jacket field gear city detective palette, warm loyal smile, full body head-to-toe." — the white-matte standee that becomes the transparent Luke sprite on this page.
Roleplay Key-Art Portrait Promptgpt-image-2
"Vyn Richter, a refined psychologist with light blond-silver hair and gold eyes, wearing an elegant dark academic coat, standing in a moody urban night street with warm neon bokeh, portrait. No text, no labels, no letters, no signage anywhere." — the mood portrait stored with the roleplay, later reframed by image-to-image: "Recreate the reference image as a 3:4 vertical portrait. Fully preserve the reference content … Only change the canvas to a 3:4 aspect ratio, extending the scene naturally upward/downward to fill the taller frame. No text, no watermark, no border, no logo."
"Vyn Richter, a refined psychologist with light blond-silver hair and gold eyes, wearing an elegant dark academic coat, standing in a moody urban night street with warm neon bokeh, portrait. No text, no labels, no letters, no signage anywhere." — the mood portrait stored with the roleplay, later reframed by image-to-image: "Recreate the reference image as a 3:4 vertical portrait. Fully preserve the reference content … Only change the canvas to a 3:4 aspect ratio, extending the scene naturally upward/downward to fill the taller frame. No text, no watermark, no border, no logo."
Clinic & Ward Scene Promptsgpt-image-2
"Chief surgeon private office at night, dark wood desk, green banker lamp, wall of patient file cabinets, floor-to-ceiling window with rainy city skyline behind, a white coat hanging on the door, warm intimate lamp light against cold blue night." · "Night cardiac intensive care ward of a modern hospital, rows of patient monitors glowing soft blue-green, glass and brushed steel corridor, rain streaking tall windows, nurses station with a single desk lamp lit, cool clinical light, quiet night-shift tension."
"Chief surgeon private office at night, dark wood desk, green banker lamp, wall of patient file cabinets, floor-to-ceiling window with rainy city skyline behind, a white coat hanging on the door, warm intimate lamp light against cold blue night." · "Night cardiac intensive care ward of a modern hospital, rows of patient monitors glowing soft blue-green, glass and brushed steel corridor, rain streaking tall windows, nurses station with a single desk lamp lit, cool clinical light, quiet night-shift tension."
Neon-Noir City Scene Promptsgpt-image-2
"Semi-realistic painterly cinematic illustration of a narrow neon alley between towering arcology walls at night: rain slick pavement reflecting red and cyan neon, steam rising from a vent grate, three shadowy silhouettes waiting at the far end, glowing signs through mist, deep shadows, moody and dangerous, no people in the foreground, empty lower third, no text, no watermark." · "Empty modern CEO corner office at night, completely empty room, floor-to-ceiling grid-paned windows overlooking a dark glittering city skyline with rain streaking the glass, sleek black desk with no one at it, leather chair pushed back, blue and amber city light, cold corporate luxury." · "Empty city rooftop in heavy rain at night … single amber wall light, no people, no characters, no figures, nobody in the scene. Moody sleek digital illustration, cinematic, high contrast, lower third clear."
"Semi-realistic painterly cinematic illustration of a narrow neon alley between towering arcology walls at night: rain slick pavement reflecting red and cyan neon, steam rising from a vent grate, three shadowy silhouettes waiting at the far end, glowing signs through mist, deep shadows, moody and dangerous, no people in the foreground, empty lower third, no text, no watermark." · "Empty modern CEO corner office at night, completely empty room, floor-to-ceiling grid-paned windows overlooking a dark glittering city skyline with rain streaking the glass, sleek black desk with no one at it, leather chair pushed back, blue and amber city light, cold corporate luxury." · "Empty city rooftop in heavy rain at night … single amber wall light, no people, no characters, no figures, nobody in the scene. Moody sleek digital illustration, cinematic, high contrast, lower third clear."
Transparent Cut-Out Stepbirefnet-general
Every white-matte character portrait is run through BiRefNet background removal into a true transparent PNG with a clean alpha edge — no white box, no matte fringe — ready to composite over any painted backdrop. This is the same cut-out used for both sprites on this page.
Every white-matte character portrait is run through BiRefNet background removal into a true transparent PNG with a clean alpha edge — no white box, no matte fringe — ready to composite over any painted backdrop. This is the same cut-out used for both sprites on this page.
Why Choose Neta Studio
Professional — a cloud harness runs the whole production from world building to story 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, cast portraits, scene and key-art generation, transparent cut-outs, in-browser QA and one-click publishing, with world fork and resource sharing built in — so every portrait, scene and prompt in this casefile is reusable in your own world.
Community-first — users build unlimited worlds, and every public world can be forked, remixed and reimagined. Start from Casefile: You, or begin fresh from any idea — a one-line prompt is enough.
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Open the Casefile
Casefile: You was generated by Neta Studio AI from a single world prompt — the world, the two men, the three threads and the artwork took minutes. You can do it too — play this mystery, or adapt the world and start fresh from any idea. No coding required, free to start.
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