10 ChatGPT Prompts for Dungeons & Dragons

If ChatGPT was sitting at your D&D table, it’d be the player who always has ideas ready, never slows the game down, and helps you bring the world to life.

These prompts are for Dungeon Masters and players who want faster prep, richer characters, and more fun at the table — without spending hours writing lore.

Use them in prep or mid-session. Just roll and go.

1. Prompts to Create Unique NPCs

#CONTEXT:

You need a non-player character — fast — but not just another “barkeep with a beard.”

#GOAL:

Create a unique, interesting NPC that fits into your world.

#RESPONSE GUIDELINES:

• I need a non-player character for [insert town or region]

• Role: [insert role: merchant, enemy, ally, etc.]

• Add 1 quirky trait or secret

• Tone: [insert tone: funny, dark, mysterious, etc.]

• Keep it under [insert word count]

#OUTPUT:

A fully formed NPC I can drop into the game right now.

2. Prompts to Design Custom Quests

#CONTEXT:

Your players are ready to explore — but you don’t have a quest prepared yet.

#GOAL:

Build a full adventure hook with objectives and twists.

#RESPONSE GUIDELINES:

• Design a side quest for [insert level] players

• Setting: [insert setting type]

• Include a problem, 1 twist, and a cool reward

• Make it flexible for roleplay or combat

• Keep it open-ended, not on rails

#OUTPUT:

A full quest idea with enough detail to run it tonight.

ChatGPT Output

3. Prompts to Build Fantasy Worlds and Towns

#CONTEXT:

You want a cool new place for your players to explore — something with flavor, lore, and secrets.

#GOAL:

Create a fantasy town, city, or region with personality.

#RESPONSE GUIDELINES:

• Build a [insert type: small town, capital city, cursed forest, etc.]

• Setting: [insert theme: desert, ocean, underground, etc.]

• Include 3 locations of interest

• Add 1 piece of local lore

• Make it feel alive and unique

#OUTPUT:

A new setting ready to drop into the campaign.

4. Prompts for Character Backstories

#CONTEXT:

Your player (or you) needs a backstory that’s more than just “my village was destroyed.”

#GOAL:

Create a character backstory with emotional depth and plot hooks.

#RESPONSE GUIDELINES:

• Race/class: [insert race and class]

• Background: [insert background or origin]

• Personality trait: [insert a strength or flaw]

• Add 1 secret or unresolved issue

• Make it open enough to evolve in-game

#OUTPUT:

A full backstory ready to share at session zero.

ChatGPT Output

5. Prompts for In-Game Dialogues or Monologues

#CONTEXT:

You need a speech, taunt, or emotional moment — and don’t want to fumble the words at the table.

#GOAL:

Write in-game dialogue that fits the scene and the speaker.

#RESPONSE GUIDELINES:

• Character: [insert character type or name]

• Situation: [insert moment: villain reveal, death scene, rally speech, etc.]

• Tone: [insert tone: dramatic, intimidating, heartfelt, etc.]

• Keep it short enough to read aloud

• Add 1 memorable line or quote

#OUTPUT:

A monologue or short speech I can use in-game.

6. Prompts to Balance Combat Encounters

#CONTEXT:

You want to run a fun battle — not a party wipe or a boring slog.

#GOAL:

Create a balanced combat encounter with fitting enemies and loot.

#RESPONSE GUIDELINES:

• Party level: [insert level]

• Party size: [insert number of players]

• Setting: [insert location or terrain]

• Include 1 twist or environmental hazard

• Suggest loot or reward that fits the challenge

#OUTPUT:

A full encounter that’s fair and fun to run.

ChatGPT Output

7. Prompts to Add Moral Dilemmas and Drama

#CONTEXT:

You want to throw your players a tough choice that makes them think — not just fight.

#GOAL:

Create a moral dilemma or dramatic decision point.

#RESPONSE GUIDELINES:

• Situation: [insert current arc or story]

• Themes: [insert themes like loyalty, power, sacrifice]

• Offer two clear choices, both with consequences

• Avoid obvious “right” answers

• Add 1 NPC who complicates the choice

#OUTPUT:

A dilemma to challenge players and deepen the story.

8. Prompts to Summarize Game Sessions

#CONTEXT:

You want to recap last session for the players — but don’t want to retype every detail.

#GOAL:

Summarize the last session into a short, clear recap.

#RESPONSE GUIDELINES:

• Here’s what happened: [insert summary notes]

• Format as a story or in bullet points

• Keep it under [insert word count]

• Add 1 question or teaser for the next session

• Optional: include NPC quotes or journal style

#OUTPUT:

A session recap I can read or send to players.

ChatGPT Output

9. Prompts to Fill in Details On the Fly

#CONTEXT:

The players ask for a shop name or NPC detail you didn’t plan. You need something quick.

#GOAL:

Generate a quick D&D detail without breaking flow.

#RESPONSE GUIDELINES:

• I need a name for a [insert: tavern, blacksmith, wizard, etc.]

• Add 1 fun detail or quirk

• Keep it short

• Optional: give a short 1-line description or rumor

• Make it match the vibe of [insert town or region]

#OUTPUT:

A small but flavorful detail I can use immediately.

10. Prompts to Build Custom Magic Items

#CONTEXT:

You want to reward your players — but with something cooler than a plain +1 sword.

#GOAL:

Create a custom magic item that fits the story and feels unique.

#RESPONSE GUIDELINES:

• Party level: [insert level]

• Who it’s for: [insert class or character name]

• Add 1 unique effect or trait

• Include a short backstory or origin

• Make it balanced but exciting

#OUTPUT:

A custom magic item ready to drop into loot or story.

ChatGPT Output

How to Use These Prompts Effectively

• Use them while prepping

Build out NPCs, quests, or towns before a session.

• Use them in-session

When players go off-track or ask something random, fire off a quick prompt.

• Add your own flavor

Tweak the tone, setting, or references to fit your world.

• Reply with changes

Say “make it darker,” “add humor,” or “shorten this” — ChatGPT will adjust fast.

• Save your best prompts

Turn good ones into your go-to DM toolkit.

Wrap-Up

D&D is all about imagination — but sometimes, you need backup.

These ChatGPT prompts help you run smoother sessions, prep less, and bring your world to life. Use them as your co-DM, improv partner, or secret weapon behind the screen.

Now go roll for creativity.