Thunder (PSR Supplement)

**PSR** is an alternate ruleset compatible with most 5e content.
System Differences The Basics Time Shifts Phases The d20 Ability Check Saving Throw Ability Scores Strength Dexterity Constitution Knowledge Perception Charisma Skills 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	Hit Points & Damage Temporary Hit Points Massive Damage Damage Types Max Damage Other Dangers Defeat Dramatic Death Common Hazards Extreme Climates Conditions Downtime Downtime Trading Downtime Enterprise	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 Special Senses

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.