Calamity Mod Wiki

The Calamity Mod adds new drops and mechanics to existing vanilla events, as well as two new unique events.

Blood Moon[]

Blood Relic.png

Blood Moons can be summoned using the Blood Relic. All enemies during blood moons have a chance to drop Blood Orbs, which are used as an alternative method to craft all vanilla potions as well as most of Calamity's. A blood moon must be active in order for the Drunk Princess to sell the Bloody Mary and for it to grant its beneficial effects. Killing the Lunatic Cultist during this event causes it to drop a unique Lore item. After Moon Lord has been defeated, all enemies have their health increased by 3.5x, and they deal 100 more damage.

Blood Moon
Unique DropsFor Sale
From all enemies:
Blood OrbBlood Orb

From Dripplers:

Bouncing EyeballBouncing Eyeball

From Blood Zombies after
defeating Skeletron:

From Fishing:

From Lunatic Cultist:

The Red Moon (Lore)The Red Moon (Lore)
From Drunk Princess after defeating Astrum Aureus:
Bloody MaryBloody Mary

Goblin Army[]

Goblin Battle Standard.png

A variety of new loot is dropped by the enemies during a Goblin Army. In Hardmode, the Goblin Sorcerer, Goblin Summoner, and the Shadowflame Apparation are able to inflict the Shadowflame debuff onto the player in Revengeance Mode.

Goblin Army
Unique Drops
From Goblin Warriors:

From Goblin Sorcerers:

Plasma RodPlasma Rod

From Goblin Summoners:

Burning StrifeBurning Strife
The First ShadowflameThe First Shadowflame


Torrential Tear.png

Rain can be toggled using the Torrential Tear tool. It will also begin to rain upon summoning Storm Weaver when outside of the Boss Rush.

In Death Mode, several additional effects may occur:

CharactersUnique Drops
Fearless Goldfish WarriorFearless Goldfish Warrior

In Space in Hardmode:

Cloud ElementalCloud Elemental
From Fearless Goldfish Warriors:
Tin HelmetTin Helmet

From Fearless Goldfish Warriors in Hardmode:

Magic DaggerMagic Dagger

From Angry Nimbuses:

Essence of SunlightEssence of Sunlight

From Cloud Elementals:

Eye of the StormEye of the Storm
Storm SaberStorm Saber
Essence of SunlightEssence of Sunlight

Acid Rain[]

Main article: Acid Rain

The Acid Rain is a weather event that has a 1/360000 chance to start every tick (1/6000 every second) after the Eye of Cthulhu has been defeated.

Throughout the duration of the event, all players and enemies in the Sulphurous Sea during the Rain will be inflicted with the Irradiated debuff. Numerous new enemies will spawn in the biome at different points of progression, with the events enemies receiving increases to their stats to make them more suited for each point in progression. The first tier of the event is made available after the player has defeated the Eye of Cthulhu, the Second Tier is made available after the Aquatic Scourge is defeated and the final tier is made available once the player defeats the Polterghast.


Arid Artifact.png

Sandstorms are summonable in Hardmode using the Arid Artifact. In Pre-Hardmode, sandstorms can only begin naturally once the Desert Scourge has been defeated. The Mighty Wind debuff is disabled whenever a boss is alive. Several new drops have been added to the event, and Forbidden Fragments are included in multiple new recipes as well. Furthermore, a new mini boss, the Great Sand Shark, can be summoned using the Sandstorm's Core after Plantera has been defeated.

CharactersUnique Drops
After defeating Plantera:
Great Sand SharkGreat Sand Shark(miniboss)
From Antlion Chargers and Antlion Swarmers:
Mandible BowMandible Bow
Mandible ClawsMandible Claws

From Sand Elementals:

Elemental in a BottleElemental in a Bottle
Rare Elemental in a BottleRare Elemental in a Bottle

From Dune Splicers after defeating Plantera:


From Great Sand Sharks:

Grand ScaleGrand Scale
Forbidden FragmentForbidden Fragment

Pirate Invasion[]

Pirate Map.png

Three new ranged weapons are dropped during the Pirate Invasion, by Pirate Crossbowers and Pirate Deadeyes.

Pirate Invasion
Unique Drops
From Pirate Crossbowers:
Raider's GloryRaider's Glory

From Pirate Deadeyes:

Proporse PistolProporse Pistol

Solar Eclipse[]

Solar Tablet.png

Solar Eclipses become ludicrously more difficult after defeating Jungle Dragon, Yharon's first phase. All enemies have their health increased by 32.5x, contact damage increased by 150, and projectile damage increased by 100. All enemies slain during a buffed Solar Eclipse will drop Darksun Fragments.

Solar Eclipse
Unique Drops
From Deadly Spheres:
Defective SphereDefective Sphere

From Reapers and Psychos after Calamitas or Plantera have been defeated:

Solar VeilSolar Veil

From all enemies after Jungle Dragon, Yharon's first phase has been defeated:

Darksun FragmentDarksun Fragment

Frost Moon[]

Naughty Present.png

The Frost Moon event becomes significantly more difficult after The Devourer of Gods has been defeated. All enemies have their health increased by 6x, contact damage increased by 100, and projectile damage increased by 70. During the buffed event, Ice Queens have a more difficult AI and some enemies will drop Endothermic Energy when slain.

Frost Moon
Unique Drops
From Present Mimics:
Holiday HalberdHoliday Halberd

From most enemies after The Devourer of Gods has been defeated:

Endothermic EnergyEndothermic Energy

Pumpkin Moon[]

Pumpkin Moon Medallion.png

The Pumpkin Moon event becomes significantly more difficult after The Devourer of Gods has been defeated. All enemies have their health increased by 7.5x, contact damage increased by 100, and projectile damage increased by 70. During the buffed event, Pumpkings have a more difficult AI and some enemies will drop Nightmare Fuel when slain.

Pumpkin Moon
Unique Drops
From most enemies after The Devourer of Gods has been defeated:
Nightmare FuelNightmare Fuel

Old One's Army[]

Eternia Crystal.png

All enemies from the Old One's Army except for Etherian Goblins, Etherian Goblin Bombers, Etherian Javelin Throwers and Etherian Lightning Bugs are immune to Glacial State, Temporal Sadness, Time Distortion and Webbed. Only one new legendary weapon is dropped from Betsy in Tier 3 (Post-Golem) on Wave 7.

Old One's Army
Unique Drops
From Betsy:

Martian Madness[]

Martian Probe.png

A magic gun, a rogue bomb, and a unique ranged weapon are dropped by various enemies during the Martian Madness invasion.

Martian Madness
Unique Drops
From Martian Officers, Brain Scramblers,
Gray Grunts, Giga Zappers, Martian Engineers,
Ray Gunners, and Scutlix Riders:
Shock GrenadeShock Grenade

From Martian Walkers:


From Martian Saucers:

Nullification PistolNullification Pistol

Lunar Events[]

Lunatic Cultist.png

All event enemies spawned during the event have a chance to drop Lunar Fragments from their respective pillars as well as Meld Blobs, a crafting material used for Meld Constructs. Additionally, Storm Divers have a low chance to drop the rare Conference Call weapon.

The Celestial Pillars also require 100 enemies to be defeated in Expert Mode before their shields go down, as compared to the original 150. This can be reverted through the configuration options.

Lunar Events
Unique Drops
From all exclusive enemies:
Meld BlobMeld Blob

From all Nebula Pillar enemies:

Nebula FragmentNebula Fragment

From all Solar Pillar enemies:

Solar FragmentSolar Fragment

From all Vortex Pillar enemies:

Vortex FragmentVortex Fragment

From all Stardust Pillar enemies:

Stardust FragmentStardust Fragment

From Storm Divers:

Conference CallConference Call

Boss Rush[]

Main article: Boss Rush

The Boss Rush is a special event activated by using Terminus, an item obtained from the Shrine at the bottom of the Abyss. During the event, all vanilla and Calamity bosses will spawn in a unique sequence, each with their own modified behaviors and buffed stats.

Boss Rush
Unique Drops
From The Devourer of Gods while the Boss Rush is active:


See Also[]