The Calamity Mod adds new drops and mechanics to existing vanilla events, as well as two new unique events.
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.
|Unique Drops||For Sale|
|From all enemies:
From Lunatic Cultist:
|From Drunk Princess after defeating Astrum Aureus:
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.
|From Goblin Warriors:
From Goblin Sorcerers:
From Goblin Summoners:
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.
|Fearless Goldfish Warrior
In Space in Hardmode:
|From Fearless Goldfish Warriors:
From Angry Nimbuses:
From Cloud Elementals:
- 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.
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.
|After defeating Plantera:
||From Antlion Chargers and Antlion Swarmers:
From Sand Elementals:
From Great Sand Sharks:
|From Pirate Crossbowers:
From Pirate Deadeyes:
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.
|From Deadly Spheres:
From all enemies after Jungle Dragon, Yharon's first phase has been defeated:
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.
|From Present Mimics:
From most enemies after The Devourer of Gods has been defeated:
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.
|From most enemies after The Devourer of Gods has been defeated:|
Old One's Army
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|
|From Martian Officers, Brain Scramblers,|
Gray Grunts, Giga Zappers, Martian Engineers,
Ray Gunners, and Scutlix Riders:
From Martian Walkers:
From Martian Saucers:
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.
|From all exclusive enemies:
From all Nebula Pillar enemies:
From all Solar Pillar enemies:
From all Vortex Pillar enemies:
From all Stardust Pillar enemies:
From Storm Divers:
- 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.
|From The Devourer of Gods while the Boss Rush is active:|
- Players can enable a configuration option to disable event enemy spawns whenever a Town NPC is nearby.
- Events on the vanilla wiki.
|Combat||Charge • Damage Reduction • Hit Sounds • Immunity frames • Lifesteal • Minions • Proficiency • Rogue|
|Environment||Biome backgrounds • Events • Music • Status messages|
|Events||Acid Rain • Boss Rush|
|Items||Alternative crafting ingredients • Consumable • Crafting stations (By Hand) • Drops • Modifiers • Rarity • Recipes • Vanilla item recipes|
|Game||AI • Armageddon • Boss Health Bar • Configuration options • Death Mode • Defiled Rune • Fishing • Game controls • Iron Heart • Lore • Revengeance Mode • Vanilla changes|
|Player||Adrenaline Meter • Aggro • Buffs and Debuffs • Death Prevention • Defense • Rage Meter|