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Adventurer’s Handbook

How to Roll for NPCs Using Dice in RPGs

by 李静 on Feb 14, 2025

Introduction

In tabletop role-playing games (RPGs), the role of non-player characters (NPCs) is crucial. These characters populate the world, interact with the players, and drive the story forward. While many players focus on their own characters, the creation of NPCs is just as important for the game master (GM). One of the most efficient ways to create NPCs on the fly is by using dice. Dice help GMs generate random and diverse NPCs quickly, saving valuable time and adding an element of unpredictability and fun to the game.

In this article, we’ll explore how to roll for NPCs using dice in RPGs, provide methods to create compelling characters, and discuss how dice can streamline the NPC creation process. Whether you are a beginner GM or a seasoned veteran, these tips and techniques will enhance your game and help you bring your world to life.


Why Dice Are Essential for NPC Creation

The Role of NPCs in RPGs

Non-player characters serve as the lifeblood of any RPG campaign. They act as quest-givers, allies, enemies, and world-builders. Without engaging NPCs, the world can feel hollow and unconvincing. NPCs help flesh out the narrative, create conflict, and provide players with interesting relationships to develop throughout the campaign.

Creating NPCs manually can be time-consuming. But by utilizing dice, GMs can quickly generate unique characters that feel alive and multidimensional. Dice allow GMs to randomize key attributes such as appearance, personality traits, backgrounds, and motivations—giving every NPC a distinct role in the world.

The Benefits of Using Dice for NPCs

Using dice for NPC creation offers several advantages:

  • Speed: Dice allow you to generate NPCs on the spot without the need for extensive preplanning.
  • Variety: Dice rolls introduce an element of randomness, which can lead to more diverse and interesting NPCs.
  • Flexibility: Dice rolls can be used for different aspects of NPCs—such as physical traits, professions, and personalities—giving you ample opportunities for creativity.

By incorporating dice into the NPC creation process, GMs can speed up gameplay and keep the story moving forward with fresh and dynamic characters.


The Basics of Rolling for NPCs

Choosing the Right Dice

The first step in rolling for NPCs is selecting the appropriate dice. Most RPGs, such as Dungeons & Dragons (D&D), use polyhedral dice, which include standard dice such as d4, d6, d8, d10, d12, and d20. Some game systems also use percentile dice (d100) for further specificity.

For NPC creation, the most commonly used dice are d6 (six-sided dice) and d20 (twenty-sided dice). These dice offer enough variety while being simple to roll and understand. When choosing dice for NPC generation, consider using a d6 for basic attributes, a d20 for random encounters, and a d12 or d8 for personality traits.

Rolling for Basic NPC Attributes

You can use dice to roll for key attributes that define an NPC’s appearance and background. For example, if you want to determine the physical appearance of an NPC, you might roll on a pre-set table with the following results:

  • d6 Roll for Gender: 1-2 for male, 3-4 for female, 5-6 for other.
  • d6 Roll for Age: 1-2 for young, 3-4 for middle-aged, 5-6 for elderly.
  • d20 Roll for Race/Species: Roll a d20 to select from a wide range of available races in your RPG, such as human, elf, dwarf, or orc.
  • d12 Roll for Occupation: Use a d12 to roll for common NPC professions, such as merchant, wizard, or guard.

Rolling for these traits ensures that each NPC is unique and contributes to the richness of your world.

Rolling for Personality Traits

To further develop your NPC, you can roll for their personality traits. A set of pre-defined tables can make this process quick and fun. For example, you could roll a d6 for alignment, a d10 for quirks, and a d12 for core motivations:

  • d6 Roll for Alignment: 1-2 for lawful, 3-4 for neutral, 5-6 for chaotic.
  • d10 Roll for Quirks: 1-3 for sarcastic, 4-6 for shy, 7-9 for aggressive, 10 for kind-hearted.
  • d12 Roll for Motivation: 1-3 for wealth, 4-6 for knowledge, 7-9 for revenge, 10-12 for love.

With these rolls, you can quickly generate complex personalities for your NPCs, making them more engaging and memorable for players.


Advanced Dice Mechanics for NPC Generation

Using the D20 System for Random Encounters

A d20 system can be used to determine an NPC’s involvement in random encounters. This system is particularly useful for determining how NPCs will react during encounters with players. Roll a d20 to determine an NPC’s attitude toward the players, and then consult the following table:

  • 1-5: Hostile, attacks on sight.
  • 6-10: Neutral, cautiously observes.
  • 11-15: Friendly, offers help.
  • 16-20: Helpful, offers gifts or valuable information.

This system adds an element of surprise and tension to encounters, making each NPC interaction feel unique.

Creating Random NPC Backstories

For a deeper and more intricate NPC generation, use dice rolls to create a random backstory. Roll a d6 for the NPC’s past events, such as:

  • 1-2: Lost a loved one.
  • 3-4: Former criminal.
  • 5-6: Discovered a hidden treasure.

This technique allows for the creation of NPCs with rich, dynamic histories, enhancing their role in the game and making them more relatable to players.


Practical Examples of Rolling for NPCs

Example 1: A Friendly Merchant

Let’s roll for a random NPC to serve as a friendly merchant in a small village. Using the dice rolls:

  • d6 for Gender: Roll a 2 (female).
  • d6 for Age: Roll a 3 (middle-aged).
  • d20 for Race: Roll a 12 (halfling).
  • d12 for Occupation: Roll a 7 (merchant).
  • d6 for Alignment: Roll a 4 (neutral).
  • d10 for Quirks: Roll a 9 (aggressive).
  • d12 for Motivation: Roll a 6 (knowledge).

With these results, we have a middle-aged female halfling merchant who is neutral in alignment, aggressive in her manner, and driven by a thirst for knowledge. This NPC could have a personality that surprises the players, offering information while fiercely negotiating prices.

Example 2: A Mysterious Wizard

Now, let’s roll for a mysterious wizard NPC who may play an important role in the campaign.

  • d6 for Gender: Roll a 1 (male).
  • d6 for Age: Roll a 6 (elderly).
  • d20 for Race: Roll a 4 (elf).
  • d12 for Occupation: Roll a 11 (wizard).
  • d6 for Alignment: Roll a 2 (lawful).
  • d10 for Quirks: Roll a 4 (shy).
  • d12 for Motivation: Roll a 9 (revenge).

This roll gives us an elderly, lawful elf wizard who is shy but motivated by revenge. This NPC could serve as an enigmatic figure with a hidden past, offering the players help while hiding personal motives.


Generate Unique NPCs For Your Game

Rolling for NPCs using dice is an efficient and exciting way to bring depth to your RPG sessions. By using dice mechanics, you can generate unique NPCs that surprise both you and your players, ensuring that every interaction feels fresh and engaging. Whether you’re a GM looking to streamline the NPC creation process or a player creating backstories for NPCs in your game, dice offer a simple yet effective tool to enhance the role-playing experience.

Recommendation: Consider using a mix of random dice rolls for quick NPC creation, but also feel free to adjust the outcomes to fit the tone and story of your campaign. By combining randomness with thoughtful adjustments, you’ll create NPCs that are both memorable and impactful.

Tags: D&D, Dice, DND, Dungeons and Dragons, Guide, RPG, Tabletop Game, TRPG, TTRPG
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