Calamity Mod Wiki
Hadopelagic Echo
  • Hadopelagic Echo.png
Stack digit 1.png
Damage500 Magic
Knockback1.50 (Extremely Weak)
Critical chance4%
Use time30 Average
TooltipFires a string of bouncing sound waves
Sound waves fired later in the chain deal more damage
Sound waves echo additional sound waves on enemy hits
Sound waves deal more damage the more they pierce
Inflicts DebuffCrush DepthCrush Depth
100% chance

Debuff duration10 seconds (Small and Main waves)
Debuff tooltipAquatic pressure
Inflicts DebuffIchor (debuff)Ichor
100% chance

Debuff duration5 seconds (Main wave)
Debuff tooltipDefense reduced by 20
Inflicts DebuffElectrifiedElectrified
100% chance

Debuff duration10 seconds (Main wave)
Debuff tooltipYou cannot move
RarityRarity Level: 15
Sell 50 Gold Coin.png
Projectile created
Eidolic Sound Wave
Hadopelagic Sound Wave

A single uninterrupted burst from the Hadopelagic Echo, followed by two bursts against a set of Target Dummies. Note how the sound waves slow down with each successful hit until they stop completely.

The Hadopelagic Echo is a craftable post-Moon Lord magic gun that is a direct upgrade to the Eidolic Wail. It fires five sound waves that can ricochet off of walls in quick succession. The second, third, fourth, and fifth sound waves deal additional damage and all sound waves deal increased damage the more they pierce. They also echo when hitting enemies, creating four extra sound waves around the enemy. After hitting an enemy they slow down and fade. The sound waves ignore NPC immunity frames, dealing constant damage to any enemies they touch, and inflict the Crush Depth debuff.

Its best modifier is Mythical.



Crafting Station
Cosmic AnvilCosmic Anvil
Eidolic WailEidolic Wail1
Reaper ToothReaper Tooth20
Depth CellsDepth Cells20
Auric BarAuric Bar5
Hadopelagic EchoHadopelagic Echo1


  • The weapon's sprite was originally intended to be a resprite of the Eidolic Wail.
  • The weapon has a 1% chance of playing the Sunskater death sound instead of the typical sound.