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@esterlinej esterlinej released this 10 Jun 19:24
· 11 commits to main since this release
v1.0.0
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PF2e Creature Size Matters

Adds meaningful mechanical weight to size differentials in melee combat for
Pathfinder 2e on Foundry VTT.

What's New

This is the initial release of PF2e Creature Size Matters — a GM-facing
module that addresses one of PF2e's most immersion-breaking normalizations:
the fact that a Gargantuan dragon and a Medium fighter deal damage as if size
is purely cosmetic.

Core Features

Size Differential Bonus Damage
When a larger creature successfully hits a smaller one in melee, the GM receives
a prompt with calculated bonus damage scaled to the size category difference.
Default +5 per category — fully configurable.

Reflex Save Requirement
The sheer force of a larger creature's strike requires the target to make a
Reflex save or suffer a condition. Default DC 10 + 5 per size category.
Conditions are configurable per tier.

Draggable Condition Links
On-card condition links (Off-Guard, Prone, Clumsy) render as draggable PF2e
inline links — drag directly onto the target token after a failed save.

Critical Hit Support
Bonus damage automatically doubles on a critical hit. A setting controls
whether this is automatic or presents the GM with both options.

Melee Only
Triggers only on successful melee attack rolls. Ranged attacks, spells, and
abilities are not affected.

GM Whisper by Default
The size differential card is whispered to the GM only, keeping the mechanic
transparent to you without cluttering player chat.

Configuration

Full configuration available under Game Settings → Module Settings →
PF2e Creature Size Matters:

  • Base damage per size category — default 5
  • Per-tier damage overrides — set specific values for 1, 2, or 3+ category differences
  • Critical hit multiplier — auto-double or present both options
  • Base Reflex DC — default 10
  • DC modifier per category — default 5
  • Condition at 1 category difference — Off-Guard / Clumsy 1 / None
  • Condition at 2+ category difference — Prone / Off-Guard / None
  • Auto apply damage — Manual / Button / Auto
  • Auto roll Reflex save — toggle
  • Whisper to GM only — toggle

Compatibility

Version
Foundry VTT 13+
PF2e System 6.0.0+
Verified Foundry 13.347, PF2e 7.12.2

Known Limitations

  • Bonus damage applied via the Apply button bypasses PF2e's IWR
    (Immunity, Weakness, Resistance) pipeline — GMs should account for
    relevant resistances manually
  • Size differential only applies to melee attacks
  • Requires a target to be set before the attack roll for the hook to
    fire correctly

Credits

Built for a home Age of Ashes campaign that got tired of Stone Giants
feeling like slightly larger goblins.

Author: Jester — github.com/esterlinej
License: MIT

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