D12 – Twelve-Sided Die

The D12 (twelve-sided die) is the primary die used for structured randomness in Elvendor.

It replaces the traditional use of 2D6 when a 1–12 range is required, ensuring that every number from 1 to 12 has equal probability, including the number 1.

This creates cleaner probability design and more balanced scenario tables.

Why the D12 Is Used Instead of 2D6

When rolling 2D6:

• The minimum result is 2
  
  
• The number 1 can never be rolled
  
  
• Middle values (6–8) are more likely than edge values
  
  

This creates weighted probability.

In Elvendor, many tables require true 1–12 equal distribution.

The D12 ensures:

• 1–12 range
  
  
• Equal probability for every outcome
  
  
• Cleaner table design
  
  
• Predictable balancing for scenario creation
  
  

Primary Uses of the D12

1. Scenario Event Tables

The D12 determines:

• Random events during scenarios
  
  
• Environmental disruptions
  
  
• Unexpected reinforcements
  
  
• Beneficial discoveries
  
  
• Narrative twists
  
  

Example structure:

• 1–6 → Table I (Balanced / Neutral / Mild)
  
  
• 7–12 → Table II (Aggressive / Dangerous / Escalation)
  
  

This allows the game to escalate naturally while remaining unpredictable.

2. Spawn Location Tables

The D12 is used with:

• Map Coordinate Cards
  
  
• Spawn Zone Determination
  
  
• Reinforcement Entry Points
  
  
• Dynamic enemy placement
  
  

Because the board is divided into 12 grid zones, the D12 integrates perfectly with your Map Cords system.

3. Major Loot Tables

When determining:

• Equipment
  
  
• Relics
  
  
• Rare materials
  
  
• Crystal variants
  
  

The D12 allows for a structured loot range without overwhelming complexity.

4. Directional Tables (When Needed)

Although wind direction uses a wheel, the D12 can also be used for:

• Forced movement effects
  
  
• Random scatter
  
  
• Teleport or displacement mechanics
  
  

Design Philosophy

The D12 represents:

• Structured randomness
  
  
• Scenario-level decision making
  
  
• Mid-scale unpredictability
  
  
• Event escalation
  
  

It is more impactful than a D6, but not as expansive as a D20.

Summary

The D12 is the die of:

• Scenario events
  
  
• Spawn systems
  
  
• Major random effects
  
  
• Equal 1–12 distribution
  
  

It is the backbone of Elvendor’s procedural scenario design.

🎲 D20 – Twenty-Sided Die

The D20 (twenty-sided die) represents high-impact randomness in Elvendor.

It is used when broader possibility, deeper variation, or high-stakes outcomes are required.

Where the D6 governs moment-to-moment mechanics and the D12 structures scenario flow, the D20 governs scale, rarity, and destiny.

It is never used for:

• Major scenario decisions
  
  
• Large event tables
  
  
• 1–12 outcome charts
  
  

Those are reserved for the D12.

The D6 exists to add subtle unpredictability without overwhelming the player.

Summary

The D6 is the die of:

• Minor modifiers
  
  
• Environmental variation
  
  
• Tactical unpredictability
  
  
• Short-term effects
  
  

It ensures that no scenario plays exactly the same, while keeping the game balanced and manageable.