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====== Sanity System ======

This module adds psychological pressure, horror, and mental instability to ODDS RPG.

Use this in:

  * Horror campaigns
  * Cosmic or eldritch settings
  * Psychological thrillers
  * Dark fantasy
  * Trauma-focused stories

If not using horror themes, this module is optional.

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===== Sanity vs Resolve =====

The GM chooses one approach:

Option 1:
  Replace Resolve with Sanity.

Option 2:
  Keep Resolve for morale and add Sanity as a separate track.

Recommended for horror:
  Separate Sanity track.

If separate:

Sanity = 10 + Presence

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===== Sanity Checks =====

When a character encounters:

  * Eldritch horror
  * Disturbing revelation
  * Psychological trauma
  * Mind-warping magic
  * Extreme violence

Roll:

  1d20 + Presence

TN guidelines:

Unsettling → 12  
Horrific → 15  
Mind-shattering → 18  
Reality-breaking → 22  

Failure:
  Lose 2d10 Sanity.

Strong Failure (miss by 5+):
  Lose 2d10 Sanity and gain a Condition.

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===== Sanity Conditions =====

At 50% Sanity:

  Gain one Minor Instability.

At 0 Sanity:

  Character Breaks.

Broken state:

  * Cannot act rationally.
  * GM may temporarily control actions.
  * Character collapses, flees, or dissociates.

Recovery requires:

  * Safety
  * Time
  * Meaningful emotional support

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===== Minor Instabilities =====

Roll 1d8 or choose:

1 Paranoia (-2 Insight-based rolls)  
2 Tremors (-2 ranged attacks)  
3 Nightmares (no Resolve recovery on short rest)  
4 Phobia (GM-defined trigger)  
5 Obsession (fixate on clue or object)  
6 Emotional detachment (-2 social rolls)  
7 Hallucinations (minor distortions)  
8 Compulsive behavior

Instabilities persist until treated.

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===== Treatment & Recovery =====

After major rest or downtime:

Roll 1d20 + Mind vs TN 15.

On success:
  Recover 1d10 Sanity.

Professional therapy, magical cleansing, or advanced tech may grant Advantage.

Sanity should recover slowly to maintain tone.

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===== Short-Term Shock (Optional Rule) =====

On failing a Sanity roll by 10+:

Roll 1d6:

1 Freeze (lose next Action)  
2 Flee immediately  
3 Drop held item  
4 Attack nearest target  
5 Collapse prone  
6 Catatonic for one round  

This adds horror unpredictability.

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===== Long-Term Effects (Optional Rule) =====

If a character reaches 0 Sanity twice:

  Gain a Permanent Scar.

Examples:

  * Chronic paranoia
  * Night terrors
  * Emotional numbness
  * Addiction coping mechanism
  * Delusion

Permanent Scars are roleplay-driven and may impose -1 to a relevant area.

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===== Design Principles =====

Sanity should:

  * Increase tension
  * Reinforce horror tone
  * Encourage caution
  * Create psychological consequences

Do not use it to punish normal combat stress.

Reserve it for true horror elements.

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ODDS RPG Sanity Module v1.0