Thunder (PSR Supplement)

**PSR** is an alternate ruleset compatible with most 5e content.
System Differences The Basics Time The d20 Ability Check Ability Scores Strength Dexterity Constitution Knowledge Perception Charisma Saving Throws Skills Senses Carry Slots	Encounters Group Turns Round‑Table Turns Staggered Turns Your Turn Move Action Bonus Action Reaction Making an Attack Unarmed Strike Sunder Defense Cover Shifts Phases	Hit Points & Damage Temporary Hit Points Damage Types Max Damage Rest & Recovery Downtime Downtime Trading Downtime Enterprise Defeat Dramatic Death Common Hazards Extreme Climates Conditions	Items Goods & Currency Material Goods Weapons Improvised Attire Shields Tools Gear Attunement Objects Damaging Objects Hauling Objects Vehicles Artillery NPCs Mount Cohort Stat Blocks Vulnerability, Resistance, & Immunity

Thunder is a damage type.

Thunder damage is caused by concussive blasts, extremely loud noises, and destructive vibrations. In this world, bombs and explosions deal thunder damage.
Whenever thunder damage is dealt, it almost always creates immense noise that can be heard from a great distance.
The explosive force of this damage type can be particularly destructive to structures. Many sources of thunder damage specify they deal max damage to objects.
Sources of thunder damage can sometimes a creature unable to hear, or blast away creatures and objects.
Creatures made of resonant material like crystals might be vulnerable to thunder damage, as are those who rely on senses like biosonar or tremorsense.
Gaseous creatures made of air and smoke often resist thunder damage, as do some who can't hear in the first place. Creatures made of noise-absorbent materials are also potentially resistant.

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