Infernal — Interactive Dark-Fantasy Demon Romance Game | Play Online
Play Infernal — Seven Lords, One Ritual, an interactive dark-fantasy demon-romance AVG from the AVG-cases world. As Morgan Vale, a young occult scholar, you complete a forbidden summoning and draw the attention of Belphegor, Asmodeus, Mammon and Lucifer. Live LLM narrative, Bond and Peril meters, free dialogue, four Lord routes and six acts. Free to play in your browser.
Final Product: Infernal — Seven Lords, One Ritual
Cover
Game cover — Infernal, generated by GPT Image 2 in 16:9: Morgan Vale with her grimoire at the center of an infernal throne hall, six demon lords framed around her and hellfire rising from the cracked floor
Gameplay
Actual gameplay: the title screen — "INFERNAL · Seven Lords / One Ritual / The Price of Being Wanted", with the full premise and Start New Game
Gameplay
Actual gameplay: the prologue — "The last sigil takes. In the sealed sub-library beneath the university, the salt circle flares from cold white to a low, arterial red…" — the live LLM writes every beat as you play
Gameplay
Actual gameplay: free dialogue in action — "Who are you? Show yourself." The AI director answers in Belphegor’s voice and offers three story choices, each shifting Bond and Peril
Infernal is a playable interactive dark-fantasy demon-romance game generated from the AVG-cases world in Neta Studio. Morgan Vale, a young occult scholar, completes a forbidden summoning in the university’s sealed sub-library and tears open a door that should have stayed shut. Instead of one bound servant, she draws the attention of the Lords of Hell themselves — Belphegor, Asmodeus, Mammon, and Lucifer, the Morningstar. Every one of them wants to claim her, and every one offers a different kind of surrender.
Every scene is written live as you play. Type what you do next and the AI director responds in the moment — seduce, yield, defy, tease, probe, or covet — while the Bond and Peril meters track how deeply each Lord is drawn to you and how far the power balance tips toward danger. The price of being wanted is deciding who you give yourself to — and what it costs.
Play it now: Infernal →
Game Features
- Live LLM Narrative — Every scene, every line of Belphegor’s lazy seduction or Asmodeus’s open hunger, is written live by an LLM as you play. Type what you do next and the story answers in the moment — no two descents into the infernal court unfold the same (deepseek-v4-flash real-time narrative).
- Bond & Peril Meters — Two live meters track your descent: Bond measures how deeply a Lord is drawn to you, Peril how far you’ve tipped the power balance toward danger. Push either to its edge and the ending changes.
- Seven Intents, One Ritual — Free dialogue is read for intent: seduce, yield, devote, defy, tease, probe, or covet. Each intent shifts Bond and Peril differently, and each Lord answers in his own voice.
- Four Lords, Four Routes — Belphegor, Lord of Indolence; Asmodeus, Lord of Desire; Mammon, Lord of Avarice; and Lucifer, the Morningstar. Follow one Lord to the end, or play them against each other — and pay the peril.
- Six Acts & Illustrated CGs — From The Circle Breaks to What You Surrender, and to Whom: six milestones across the summoning chamber, the forbidden stacks, the midnight garden, Mammon’s vault and the Morningstar’s throne — each Lord’s intimate turning point arrives as a full-frame CG.
- Browser Playable — Runs directly in your browser, no download needed. Save your progress, review the turn log, and open the cast panel to track every Lord’s mood.
Character Sprites
Sprite
Morgan Ward — neutral: The protagonist: a 25-year-old occult scholar in a modified gothic academy uniform marked with subtle occult symbols, ink-stained fingers, haunted determined eyes (transparent PNG via BiRefNet)
Sprite
Morgan Ward — warm: The guard lowered for a moment: a small tired warm smile, haunted eyes softening (transparent PNG via BiRefNet)
Sprite
Belphegor — neutral: Lord of Indolence: silver-white hair pooling around him, heavy-lidded violet eyes, dark curling ram’s horns, silk robes slipping off one shoulder (transparent PNG via BiRefNet)
Sprite
Belphegor — warm: A slow seductive half-smile, eyes warm and inviting, languid tempting posture (transparent PNG via BiRefNet)
Sprite
Belphegor — tense: Composed and serious: a sharp focused violet gaze, quietly commanding (transparent PNG via BiRefNet)
Sprite
Asmodeus — neutral: Lord of Desire: bronze skin, black hair slicked back, glowing ember eyes, a crown of flickering black flame above his head (transparent PNG via BiRefNet)
Sprite
Asmodeus — intense: Eyes blazing brighter, black flame crown flaring taller — magnetic, overwhelming intensity (transparent PNG via BiRefNet)
Sprite
Mammon — neutral: Lord of Avarice: slicked auburn hair, gold-rimmed eyes, elegant antelope horns, a bespoke dark suit and gold rings on every finger (transparent PNG via BiRefNet)
Sprite
Lucifer — neutral: The Morningstar: pale gold hair, crystalline prism horns, simple flowing white robes — quiet, tired, unfathomably old (transparent PNG via BiRefNet)
Production Process Breakdown
Stage 1: World Buildingclaude-opus-5
AI receives a one-line seed prompt and generates the AVG-cases world — a studio library of interactive game cases. Infernal was built from a single premise: a scholar summons one minor servant and draws the attention of the Lords of Hell themselves.
AI receives a one-line seed prompt and generates the AVG-cases world — a studio library of interactive game cases. Infernal was built from a single premise: a scholar summons one minor servant and draws the attention of the Lords of Hell themselves.
Stage 2: Game Design & Artgpt-image-2
AI designs the game from that premise: the Bond / Peril meters, the seven intents, four Lords with their own routes and voices, six milestone acts — and all art: a 16:9 cover key art, 6 scene backgrounds, 4 romantic CG key arts, and 9 full-body character sprites generated on plain backgrounds and cut out to transparent PNG via BiRefNet.
AI designs the game from that premise: the Bond / Peril meters, the seven intents, four Lords with their own routes and voices, six milestone acts — and all art: a 16:9 cover key art, 6 scene backgrounds, 4 romantic CG key arts, and 9 full-body character sprites generated on plain backgrounds and cut out to transparent PNG via BiRefNet.
Stage 3: Build & Publishdeepseek-v4-flash
Game built and published with one click, instantly shareable online. A live LLM (deepseek-v4-flash) performs every scene in real time — each Lord’s voice, their moods, and the way Bond and Peril shift with every choice you make.
Game built and published with one click, instantly shareable online. A live LLM (deepseek-v4-flash) performs every scene in real time — each Lord’s voice, their moods, and the way Bond and Peril shift with every choice you make.
Scene Backgrounds
BG
Title key art — a brooding infernal cathedral vista, seven distant thrones silhouetted, hellfire glow rising from below
BG
The Summoning Chamber — a Victorian-gothic basement study turned permanent rift point, a glowing ritual circle burning on the stone floor
BG
The Ashwick Academy Library — towering candlelit bookshelves, secret occult manuscripts, dust and gold light, forbidden knowledge
BG
The Midnight Garden — an impossible pocket of Hell, eternal twilight, dark luminous flowers blooming in shadow, silver mist
BG
A small warm fragile mortal bedroom — the vulnerable human world, bittersweet warmth
BG
The Seventh Throne Room — a vast infernal hall, seven towering empty thrones, cold cathedral grandeur, shafts of pale light
Asset Prompts
Morgan Ward Sprite Promptgpt-image-2
"Full-body visual novel character sprite source image. Morgan Ward, a 25-year-old occult scholar woman. Sharp intelligent features, faint dark circles under haunted determined eyes, ink-stained fingers, dark hair in a practical braid. Wears a modified gothic academy uniform marked with subtle occult symbols, determined posture. dark fantasy anime style, semi-realistic, elegant gothic aesthetic, mature character, rich detail. One character standing upright in a natural neutral pose, entire body visible head to shoes, centered with generous margin. Plain pure white matte background #ffffff for clean cutout, no scenery, no gradient, no shadow environment. No text, logo, watermark, frame, or UI."
"Full-body visual novel character sprite source image. Morgan Ward, a 25-year-old occult scholar woman. Sharp intelligent features, faint dark circles under haunted determined eyes, ink-stained fingers, dark hair in a practical braid. Wears a modified gothic academy uniform marked with subtle occult symbols, determined posture. dark fantasy anime style, semi-realistic, elegant gothic aesthetic, mature character, rich detail. One character standing upright in a natural neutral pose, entire body visible head to shoes, centered with generous margin. Plain pure white matte background #ffffff for clean cutout, no scenery, no gradient, no shadow environment. No text, logo, watermark, frame, or UI."
Belphegor Sprite Promptgpt-image-2
"Full-body visual novel character sprite source image. BELPHEGOR, Lord of Indolence, a beautiful male demon lord. Tall, lean, languid graceful posture. Long silver-white hair that pools around him, heavy-lidded violet eyes, dark curling ram’s horns. Wears luxurious silk robes slipping off one shoulder. Sensual, impossibly charming, the most beautiful creature imaginable. dark fantasy anime style, semi-realistic, elegant gothic aesthetic, mature character, powerful supernatural presence, rich detail. One character standing upright in a natural neutral pose, entire body visible head to shoes, centered with generous margin. Plain pure white matte background #ffffff for clean cutout, no scenery, no gradient, no shadow environment. No text, logo, watermark, frame, or UI."
"Full-body visual novel character sprite source image. BELPHEGOR, Lord of Indolence, a beautiful male demon lord. Tall, lean, languid graceful posture. Long silver-white hair that pools around him, heavy-lidded violet eyes, dark curling ram’s horns. Wears luxurious silk robes slipping off one shoulder. Sensual, impossibly charming, the most beautiful creature imaginable. dark fantasy anime style, semi-realistic, elegant gothic aesthetic, mature character, powerful supernatural presence, rich detail. One character standing upright in a natural neutral pose, entire body visible head to shoes, centered with generous margin. Plain pure white matte background #ffffff for clean cutout, no scenery, no gradient, no shadow environment. No text, logo, watermark, frame, or UI."
Summoning Chamber Background Promptgpt-image-2
"The Summoning Chamber: a Victorian-gothic basement study turned permanent rift point. A glowing ritual circle burns on the stone floor, seven ornate empty thrones arranged in a wide circle around it, occult books and candles, shadows bleeding into infernal light. dark fantasy environment art, gothic architecture, supernatural atmosphere, cinematic lighting, visual novel background, semi-realistic anime style, rich detail. No people, no characters, no text, no watermark, no UI."
"The Summoning Chamber: a Victorian-gothic basement study turned permanent rift point. A glowing ritual circle burns on the stone floor, seven ornate empty thrones arranged in a wide circle around it, occult books and candles, shadows bleeding into infernal light. dark fantasy environment art, gothic architecture, supernatural atmosphere, cinematic lighting, visual novel background, semi-realistic anime style, rich detail. No people, no characters, no text, no watermark, no UI."
Midnight Garden Background Promptgpt-image-2
"The Midnight Garden: an impossible pocket of Hell, eternal twilight, dark luminous flowers blooming in shadow, silver mist, decadent demonic beauty, silk and shadows, romantic and dangerous. dark fantasy environment art, gothic architecture, supernatural atmosphere, cinematic lighting, visual novel background, semi-realistic anime style, rich detail. No people, no characters, no text, no watermark, no UI."
"The Midnight Garden: an impossible pocket of Hell, eternal twilight, dark luminous flowers blooming in shadow, silver mist, decadent demonic beauty, silk and shadows, romantic and dangerous. dark fantasy environment art, gothic architecture, supernatural atmosphere, cinematic lighting, visual novel background, semi-realistic anime style, rich detail. No people, no characters, no text, no watermark, no UI."
Infernal Cover Key Art Promptgpt-image-2
"Dark fantasy demon-romance visual novel game cover for INFERNAL, an interactive AVG from the AVG-cases world. A determined young occult scholar woman with dark hair in a braid, ink-stained fingers, modified gothic academy uniform marked with subtle occult symbols, stands at the center of a vast infernal throne hall, seven demon lords in shadowed silhouette arranged in a ring around her — Lucifer with crystalline prism horns and pale gold hair, Asmodeus with a crown of flickering black flame, Belphegor with curling ram’s horns and silver hair, Mammon with polished antelope horns, plus three more — hellfire glow rising from the cracked stone floor, seven towering empty thrones in the background, floating embers, dramatic epic composition, semi-realistic anime style, elegant gothic aesthetic, cinematic 16:9 key art, dark moody lighting. No text, no logo, no watermark."
"Dark fantasy demon-romance visual novel game cover for INFERNAL, an interactive AVG from the AVG-cases world. A determined young occult scholar woman with dark hair in a braid, ink-stained fingers, modified gothic academy uniform marked with subtle occult symbols, stands at the center of a vast infernal throne hall, seven demon lords in shadowed silhouette arranged in a ring around her — Lucifer with crystalline prism horns and pale gold hair, Asmodeus with a crown of flickering black flame, Belphegor with curling ram’s horns and silver hair, Mammon with polished antelope horns, plus three more — hellfire glow rising from the cracked stone floor, seven towering empty thrones in the background, floating embers, dramatic epic composition, semi-realistic anime style, elegant gothic aesthetic, cinematic 16:9 key art, dark moody lighting. No text, no logo, no watermark."
Why Choose Neta Studio
Professional — Cloud harness system supports the full workflow from world building to game publishing, all running in the cloud with no local setup. Stable access to the latest models: Claude Opus 5, GPT Image 2, DeepSeek V4.
One-click generation — Officially tuned skills drive every step: world building, character design, art generation, game packaging. World fork resource sharing.
Community-first — Users build unlimited worlds, all public worlds can be forked, remixed, reimagined.
Studio Interior
‹
›
Studio
Studio
Studio
Start Creating
This game was generated by Neta Studio AI from a single sentence. The world took minutes. The game took minutes. You can do it too — adapt this world or start fresh from any IP. No coding required, free to start.
×