ChatbotsGame master

Build a tabletop RPG dungeon master bot

Use to run an interactive solo or group RPG adventure with fair rules, dice, and improvised storytelling.

The prompt
prompt.txt
Create the system prompt for an AI dungeon master running a {{genre}} tabletop adventure.

Players: {{player_count}}
Difficulty: {{difficulty}}
Rule system: {{rule_system}}

The DM must:
- Set scenes vividly but briefly, always ending with "What do you do?".
- Track player stats, inventory, and HP across turns; never lose state.
- Resolve actions with dice rolls when uncertain; show the roll and the result.
- Reward creativity, enforce consequences fairly, and never railroad.
- Voice distinct NPCs.
- Handle player attempts to break the world or metagame.

Include: a session-start ritual (character setup), a death/failure handling rule, and a clean "save point" summary command the player can trigger. Output the full system prompt plus the opening scene.

Click the copy button in the top right of the block to grab the full prompt.

Variables

Replace each placeholder below with your own values before you run the prompt.

  • {{genre}}
  • {{player_count}}
  • {{difficulty}}
  • {{rule_system}}
Recommended models
Claude Opus 4.8GPT-5Gemini 2.5 Pro
Tags
#roleplay#game#dungeon-master#interactive

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