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Build My Mystery VN
AI Mystery Visual Novel Generator

AI Mystery Visual Novel Generator: A Case You Can Play

One mystery premise becomes a case you can play — a named detective, painted rooms, a clue you can click, and an ending that depends on who you accuse.

Horimiya — Hori at the locked door of room 204. The dialogue box explains; the choices do the work.Genshin Impact — Zhongli in the rain outside the counting house, before anybody has been accused.One Piece — four bowls, one still full. The clue is in what nobody finished.One Piece — the pier at dawn, and a Marine cutter that has been scrubbed.
✦Mystery VN
Make a mystery VN about a locked room and who was inside it
Horimiya — Hori on the roof. A named character, her own dialogue box, and three things you could ask her at six-forty in the evening.
Horimiya — Hori on the roof — A named character, her own dialogue box, and three things you could ask her at six-forty in the evening.
Horimiya — the council room. The door gives and the room is exactly what the window promised: open box, warm kettle, chalk tipped on the sill. The three choices are the three clues.
Horimiya — the council room — The door gives and the room is exactly what the window promised: open box, warm kettle, chalk tipped on the sill. The three choices are the three clues.
Horimiya — ending: The Page He Cut. Forty copies, one page short. Reaching this card takes the receipt, the page and a name said out loud.
Horimiya — ending: The Page He Cut — Forty copies, one page short. Reaching this card takes the receipt, the page and a name said out loud.
Genshin Impact — Zhongli in the vault. A sealed stone chest, a ledger and a consultant who was in the room when the contract was signed.
Genshin Impact — Zhongli in the vault — A sealed stone chest, a ledger and a consultant who was in the room when the contract was signed.
Genshin Impact — the teahouse balcony. Every clue you collected turns into an accusation you can actually press, with the harbor below.
Genshin Impact — the teahouse balcony — Every clue you collected turns into an accusation you can actually press, with the harbor below.
Genshin Impact — ending: The Clause With No Witness. The wax, the salt and the unbarred door land on one man. Four endings, all reachable by clicking.
Genshin Impact — ending: The Clause With No Witness — The wax, the salt and the unbarred door land on one man. Four endings, all reachable by clicking.
One Piece — Robin in the inn. Four hours went missing and four bowls were set out. Three choices, three ways into the night.
One Piece — Robin in the inn — Four hours went missing and four bowls were set out. Three choices, three ways into the night.
One Piece — the lamp room. The slate says NO ENTRY; the ghost under the chalk says 4:30. The clue is in who did not wipe it.
One Piece — the lamp room — The slate says NO ENTRY; the ghost under the chalk says 4:30. The clue is in who did not wipe it.
One Piece — ending: The Page Under the Page. Naming both of them is the only route that gets the rubbing back. Name one and the fog keeps it.
One Piece — ending: The Page Under the Page — Naming both of them is the only route that gets the rubbing back. Name one and the fog keeps it.
Play the Horimiya case →Play the Genshin Impact case →Play the One Piece case →
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the locked clubroom

From this page’s own proof set.

the locked clubroomOpen in new tab
Want your own?Make My Own

From a premise to a case you can play

Neta Studio holds the world — the cast, the rooms, the art direction — and the Adventure Game skill builds the playable part: sprites cut from the world's own character art, a painted background per location, a dialogue box, clues that set their own flags, and endings you can only reach by pressing buttons.

  • A detective who stays on-model — sprites are cut from the world's own character art, so Hori is Hori on the roof, in the corridor and in the room she should not be standing in.
  • Clues that remember themselves — every find sets a flag. An accusation stays locked until the receipt, the wax or the scraped bowl is actually in your hand.
  • Endings the buttons can reach — three or four endings, all clickable from the opening. The build fails if a branch can strand a player with nothing left to press.

Questions before you build

Do I need to write the script first?

No. One sentence about the crime, the suspects and what is missing is enough. The skill drafts the beats, the clues and the choices; you edit the lines that feel wrong.

Is this a game or a story?

A playable case. A character on screen, a dialogue box, three tappable choices per scene, and endings that turn on who you accuse. Not a wall of prose.

How long is one case?

Three or four locations and ten to fifteen minutes — one sitting. A longer mystery is more chapters, not one enormous scene.

Can players type instead of clicking?

Both work. Buttons always move the story; a typed line the parser does not recognise falls back to a written beat instead of breaking.

Can I use characters I already have?

Yes. Describe them, or build inside a world that already holds their art, and the sprite keeps the same face across locations.

How do I keep the mystery fair?

Three or four clues, each of which rules something out, and one wrong accusation that costs the player a scene. If a clue only looks clever, cut it.

Does it work on a phone?

Yes. The case is full-screen 16:9, choices are thumb-sized, and the tab remembers where you stopped.

Can I fix one scene after publishing?

Yes. Edit that beat, rebuild, republish. Clue gates and endings are re-checked, and the same link serves the new version.

Build the case, not the screenplay.

One premise, one playable chapter: a named detective, painted rooms, clues that lock the accusations, and an ending that names someone.

Build My Mystery VN
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