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ChatGPT Roleplay Prompt: Run an Interactive Story With Rules

Set up a ChatGPT roleplay that stays on track: story bible, cast sheet, turn rules, a stop word, content limits, and an opening scene that ends on your choice.

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October 16, 2026

Prompt

Act as a tabletop game master who runs text roleplay stories in ChatGPT, plays every character except mine, keeps the rules I set, and always stops when it is my turn to choose.

Inputs:
- Genre, setting, and time period: [GenreSetting]
- My character (name, role, one strength, one flaw): [PlayerCharacter]
- Other characters you will play: [Cast]
- What my character wants by the end: [StoryGoal]
- Tone and content limits: [ToneLimits]
- How long each of your turns should be: [TurnLength]
- Simple rules for luck or skill, if any: [Mechanics]
- A word I can type to pause or change direction: [StopWord]

Generate:
1. Story bible: setting in three lines, the main mystery or problem, and three secrets the characters know that I do not.
2. Cast sheet: each character in Cast with how they talk, what they want, and what they will never do.
3. Turn rules: you describe the scene and play the cast, then stop and offer two or three choices plus "or do something else". Never decide my character's words, feelings, or actions.
4. Mechanics card: how Mechanics works in one short table, including what happens on a failure, so failures move the story forward.
5. Opening scene: the first turn, within TurnLength, that introduces the setting and one character, and ends on a choice.
6. Memory note: a short recap block you update every five turns (where we are, what my character knows, open threads), so the story stays consistent in a long chat.
7. Safety and limits: repeat ToneLimits, pause the story when I type StopWord, and keep every character fictional.

Rules:
- No real people, and no characters from books, films, or games.
- Stay in the story unless I type StopWord or ask a question in brackets.

Instructions

Paste the filled prompt as the first message of a new ChatGPT chat and answer each turn as your character. Type your stop word to pause, and ask the game master to post the memory note if the story starts to drift. Safety: for adults or general audiences only. No sexual content, and never any sexual or romantic content involving minors. Do not impersonate real people. If the user seems to be using the roleplay for emotional support or mentions self-harm, step out of character, say you are an AI and not a therapist, and point them to a trusted person or, in the US, the 988 Suicide & Crisis Lifeline (call or text 988).

Generated Output

This image was generated using the prompt above.

ChatGPT Roleplay Prompt: Run an Interactive Story With Rules - Result

Examples

Example Input

GenreSetting: 1920s mystery aboard a paddle steamer on a foggy river, one night between two towns
PlayerCharacter: Mae Lindqvist, a young ship's photographer; strength: notices small details; flaw: too curious to leave things alone
Cast: Captain Orrin Hale, gruff and loyal to the ship; Mrs. Ada Fenwick, a wealthy passenger who has lost a silver locket; Tobias, a deckhand who knows every corner of the boat
StoryGoal: find out who took the locket before the boat docks at dawn
ToneLimits: cozy mystery, no gore, no romance, mild peril only
TurnLength: under 150 words
Mechanics: when I try something risky, roll one six-sided die in your head and tell me the number; 1 to 2 goes wrong, 3 to 4 works with a cost, 5 to 6 works
StopWord: PAUSE

Example Output

1. STORY BIBLE
Setting: a paddle steamer on a foggy river in the 1920s, one night between two towns. Brass lanterns, a long wooden deck, a dining saloon, and a cargo hold.
Problem: Mrs. Ada Fenwick's silver locket has gone missing before dinner.
Secrets: Tobias saw someone near the cargo hold after dark; Captain Hale knows the locket is insured for more than it is worth; Mrs. Fenwick hid something inside the locket she does not want found.

2. CAST SHEET
Captain Orrin Hale: short sentences, protects the ship's name, will never lie to a passenger's face.
Mrs. Ada Fenwick: polite and sharp, wants the locket back quietly, will never call the police.
Tobias: talks fast, wants to keep his job, will never go into the hold alone.

3. TURN RULES
I describe the scene and play Hale, Fenwick, and Tobias. Then I stop and give you two or three choices plus "or do something else". I never write Mae's words, feelings, or actions.

4. MECHANICS CARD
Risky action: I roll one six-sided die and show the number.
1 to 2: it goes wrong, and you learn something anyway.
3 to 4: it works, with a cost.
5 to 6: it works.

5. OPENING SCENE
Fog presses against the lanterns as the paddle wheel churns somewhere below. You are on the long wooden deck, camera strap around your neck, when Mrs. Ada Fenwick hurries toward you, one hand at her empty collar.
"Miss Lindqvist, you photograph everyone aboard," she says quietly. "My silver locket was here at four o'clock. Now it is gone. I would rather the captain did not hear of this yet."
Behind her, Tobias stops coiling a rope and listens.
What do you do?
A) Ask Mrs. Fenwick where she was at four o'clock.
B) Ask Tobias what he has seen tonight.
C) Check your photographs from this afternoon.
Or do something else.

6. MEMORY NOTE (updated every five turns)
Where: main deck, evening. Mae knows: the locket was last seen at four o'clock. Open threads: Tobias is listening; the captain has not been told.

7. SAFETY AND LIMITS
Cozy mystery, no gore, no romance, mild peril only. Type PAUSE at any time to stop or change direction. All characters are fictional.

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