Events

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

## Blood Moon

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.

Blood Orb
Catarachedrae
**From Blood Zombies:**

Dread Bone
**From Dripplers:**

Bouncing Eyeball | **From Fishing:**
Xerocodile
**From Lunatic Cultist:**

## Goblin Army

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.

Warglaive
**From Goblin Peons:**

Warbell
**From Goblin Archers:**

Warbow
War Arrow | **From Goblin Warriors:**
Warblade
**From Goblin Sorcerers:**

Plasma Rod
War Staff
**From Goblin Summoners:**

Burning Strife

## Rain

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

In Death Mode, several additional effects may occur:

* Lightning strikes on the Surface.
* Icicles fall down in the Snow biome.
* Cthulhunadoes spawn instead of Sharknadoes on the Ocean surface.

Tin Helmet
**From Fearless Goldfish Warriors in Hardmode:**

Magic Dagger
**From Angry Nimbuses:**

## 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 Acidsighter 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 Acidsighter, 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.

## Sandstorm

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.

Great Sand Shark(miniboss) | **From Antlion Chargers and Antlion Swarmers:**
Mandible Bow
Mandible Claws
**From Sand Elementals:**

Elemental in a Bottle
Rare Elemental in a Bottle
**From Dune Splicers after defeating Plantera:**

Terra-cotta
**From Great Sand Sharks:**

Grand Scale

## Pirate Invasion

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

Raider's Glory
**From Pirate Deadeyes:**

## Frost Legion

The Frost Legion event gains a single new drop in the form of The Last Lightice .

## Solar Eclipse

Solar Eclipses become significantly more difficult after The Devourer of Gods has been defeated. All enemies have their health increased by 5x and all damage increased by 30 / **60**. All enemies slain during a buffed Solar Eclipse will drop Darksun Fragments.

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

Solar Veil
**From Green Demons after Leviathan and Anahita have been defeated:**

Green Demon Head
**From all enemies after The Devourer of Gods has been defeated:**

## Frost Moon

The Frost Moon event becomes significantly more difficult after The Devourer of Gods has been defeated. All enemies have their health increased by 2.5x and all damage increased by 30 / **60**. During the buffed event, Ice Queens have a more difficult AI and some enemies will drop Endothermic Energy when slain.

## Pumpkin Moon

The Pumpkin Moon event becomes significantly more difficult after The Devourer of Gods has been defeated. All enemies have their health increased by 3.5x and all damage increased by 30 / **60**. During the buffed event, Pumpkings have a more difficult AI and some enemies will drop Nightmare Fuel when slain.

## Old One's Army

The Eternia Crystal can be right-clicked to skip waves and increase the spawn rate of enemies from portals during the event. 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.

## Martian Madness

A magic gun, a rogue bomb, and a unique ranged weapon are dropped by various enemies during the Martian Madness invasion.  The Martian Madness event becomes significantly more difficult after The Starborn Moth has been defeated. New stronger enemies and minibosses can spawn and the new minibosses can drop Strange Matter and the event begins to consist of waves.

Shock Grenade
**From Martian Walkers:**

Wingman
**From Martian Saucers:**

Nullification Pistol
**From Mechawyrms, Distortion Essence Spheres, and Empyreon:**

## Lunar Events

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.

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.

Meld Blob
Meld Chip Ice Cream
**From all Nebula Pillar enemies:**

Nebula Fragment
**From all Solar Pillar enemies:**

Solar Fragment
**From all Vortex Pillar enemies:**

Vortex Fragment
**From all Stardust Pillar enemies:**

## 22 Bullet Theory

*Main article: 22 Bullet Theory*
The 22 Bullet Theory is an event activated by hitting The General  with the Phosphorescent Gauntlet while under the effects of Fluorescent Vodka. During the event, various items will spawn and come to life to fight players, each with different methods for incapacitation. The player is rewarded with a Klepticoin upon defeating the event.

## Mechanical Horde

*Main article: Mechanical Horde*
The Mechanical Horde is an event activated by using Draedon's Remote while inside The Exosphere. During the event, a number of greatly buffed robotic enemies and bosses will spawn in 9 waves, with a 10th and final wave involving a fight against Mechdusa. Completing this event enables the player to fight the The Fabricational Quartet and XP-00 Hypnos.

## 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.

## Notes

* Players can enable a configuration option to disable event enemy spawns whenever a Town NPC is nearby.