Characters / Terraria Calamity

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Pre-Hardmode Bosses

    The Desert Scourge
Alaskan Bull Worm, eat your heart out.

Once a mighty ocean worm that destroyed the Ocean Kingdom, its home has been dried up by Calamitas and it has been forced to become a desert worm. It's the first Calamity-exclusive boss available when you start the game, and is meant to be fought after the Slime King and before the Eye of Cthulhu.
  • Early-Bird Boss: As a worm enemy, it's very hard to dodge its attacks unless you have some sort of vertical mobility or dash. The earliest you can get an accessory that lets you dash is after beating the Eye of Cthulhu, the very next boss, and in the early-game very few items that enhance your vertical mobility are readily available.
  • How the Mighty Have Fallen: This thing went from being a force capable of wiping out an entire kingdom to a dried-up, early-game boss.
  • Sand Worm: That used to be a water worm, no less.
  • Worf Had the Flu: Pretty much why it's fought so early: its home has been dried up, and it's been weakened by living in an environment with little water.

Don't do shrooms, kids.

A giant crab made of mushroom mycelia that spawns naturally in Glowing Mushroom biomes, or can be spawned by the player. It is intended to be fought before the Eater of Worlds/the Brain of Cthulhu, but after the Eye of Cthulhu.
  • Death from Above: Its main attack is to rain explosive mushroom bombs from the sky.
  • Gentle Giant: Zigzagged. While it will fight back if you hurt it, it doesn't go out of its way to fight you, and if you kill it once you get an item that makes it completely passive when equipped.
  • Flunky Boss: While Crabulon is capable of directly fighting you, most of the challenge in its fight comes from the fact that it fires out huge clumps of Mush Bombs that descend across the screen and deal massive damage when they hit the player.

    The Hive Mind

A giant colony of Eater of Souls, roughly shaped like a brain, that serves as a means of spreading and sustaining the Corruption. It's intended to be fought in Corruption Worlds after defeating the Queen Bee, but before fighting Skeletron.
  • Brain Monster: A giant grey brain made up of rotting flesh and pockmarked with eyeballs, with a crown of bony spikes and dark material.
  • Body of Bodies: This thing is made up of countless Eater of Souls that have merged together into this monstrosity.
  • Flunky Boss: Spams various Corrupt enemies as it loses health, which include Hive Blobs, Dank Creepers, Eaters of Souls and Devourers.
  • Hive Mind: Hey, it's in the name.
  • Stationary Boss: During its first phase, it is completely immobile, and has to rely on swarms of mooks to defend itself.
  • Suspiciously Similar Substitute: To the Brain of Cthulhu from the base game. The similarity used to be even stronger, as the Hive Mind and Brain of Cthulhu once shared a very similar AI.
  • Teleport Spam: Loves to do this in its second form.
  • Turns Red: Once you deplete its first health bar, it uproots itself and begins charging at players.
    • Also, if you leave the Corruption while fighting it, it will become invulnerable unless you go back.

    The Perforators
Eating worlds and brains!

A trio of worms that were once a single Eater of Worlds, before adapting to live in the Crimson and becoming parasites within the Brain of Cthulhu, which turned into the Perforator Hive once it was destroyed. They are intended to be fought before Skeletron but after Queen Bee in Crimson Worlds.

    The Slime God

The god of all slimes, flanked by the Ebonian and Crimulan Slime Godsnote . It is the final Pre-Hardmode boss in the mod, and is intended to be fought after Skeletron and before the Wall of Flesh.
  • The Assimilator: It gained intelligence by consuming other beings, until it eventually gained telekinesis as well.
  • Blob Monster: Of course.
  • Flunky Boss: Not only does the Slime God delegate most of the fighting to the Crimulan/Ebonian Slime Gods, even those can summon waves of minions when hurt.
  • From Nobody to Nightmare: From a simple bacterium to a massive and immensely powerful god.
  • Gravity Screw: Getting hit by the Slime God proper will inflict the Distorted debuff, causing you to float in midair and making it harder to dodge the Slime Gods' attacks.
  • Shielded Core Boss: The actual Slime God is invulnerable until the other two Slime Gods are killed.
  • Standard Status Effects: The lesser Slime Gods inflict these, with the Ebonian Slime God inflicting Silenced, the Crimulan Slime God inflicting the Mana Sickness (Cursed), and both inflicting Brimstone Flames (Poison/Plague/Bleeding). The Slime God proper inflicts some more... unorthodox conditions, however.
  • Turns Red: After the two lesser Slime Gods are killed, the Slime God proper completely changes his attack patterns, attempting to ram you and launching a barrage of energy blasts.

Hardmode Bosses


The prison of the magic of the Archmage of Ice Permafrost, Yharim's arch-nemesis. Sealed away by Yharim after he realized it was too powerful and erratic for him to control, it has been released after the genesis of Hardmode. It is the first boss intended to be fought once Hardmode starts, right before the Destroyer.

  • An Ice Person: Well, what did you expect from an oversized living snowflake?
  • Beam Spam: Its primary means of attack is rapid-fire bombardments of freezing blasts.
  • Confusion Fu: Has a whopping total of six phases, with a different attack pattern in each.
  • Empathic Environment: As it nears death, it starts snowing harder and harder.
  • Leitmotif: Antarctic Reinforcement, designed intentionally for this mod by DM DOKURO.
  • Marathon Boss: It has six phases, more than the True Final Boss of the vanilla game!
  • Regenerating Shields, Static Health: Cryogen has an ice barrier that must be destroyed before damaging it. It will regenerate several moments after being destroyed.
  • Was Once a Man: Cryogen used to be the Archmage of Ice Permafrost, Yharim's most bitter enemy, but after Permafrost refused to help Yharim he was destroyed by Yharim's magic and reborn as a mindless hunk of magical ice.

    Brimstone Elemental
Every rose has its thorn. This one's thorns just happen to make you die a horrible, fiery death.

A demonic elemental found in the mod-exclusive Calamity Biome. It is intended to be fought after the Destroyer and before the other two Mechanical Bosses.

  • Art Evolution: Gained a few more details, most notably in her hair and on the rose. Also comes with an increase in cup size.
  • Catch-22: An unintentional one was created when it was introduced. It drops an accessory called Abbadon, which grants immunity to the Brimstone Flames debuff and makes the fight against Calamitas far easier. However, if your world was created before the Calamity Biome was implemented, you have to kill Calamitas before you can spawn in the Calamity Biome, and since Calamitas is tough as nuts to beat without Abbadon...
  • Cute Monster Girl: It's a woman made of fire that has a rose made of brimstone for a lower body.
  • Cyclops: It was very subtle, but in her original sprite she had only one large eye.
  • Defeat Equals Friendship: If you collected the Rose stone, you can summon her to fight for you.
  • Full-Frontal Assault: It's completely naked, yet lacks any genitalia or nipples.
  • How the Mighty Have Fallen: She and her ďsistersĒ make it look like Desert Scourge had it easy. Originally praised as goddesses, they lost their followers as the years went by, and Calamitas rained havoc on the underworld where the Brimstone Elememtal thrived, now rendered weak and vengeful against humanity.
  • Playing with Fire / Casting a Shadow: Fires Brimstone Flames, which inflict a seriously damaging debuff.



Yharim's former servant and current giant eyeball. She's intended to be fought after the Mechanical Bosses, but before Plantera.

She is the first boss in the mod to have a "Superboss" form, Supreme Calamitas. This version of her is the True Final Boss of the mod, and is accordingly insanely difficult to beat.

Catastrophe and Cataclysm

Two of Calamitas' brothers, revived to fight you. They gets summoned during the second phase of Calamitas' fight.

Like Calamitas, they too have Superboss forms, which are fought as part of Supreme Calamitas' fight.
  • Art Evolution: Both were formerly nearly identical recolors of Spazmatism, but nowadays they individually resemble a mechanical construct and a burnt maw with fangs.
  • Back from the Dead: Were killed by an angry mob and revived by Calamitas in her backstory. During the fight against Calamitas in Expert Mode, she revives them instead of summoning minions at certain points in the fight.
  • Baleful Polymorph: Were turned into eyeball monsters by Calamitas after she herself got turned into one by Yharim.
  • Breath Weapon: They breathe fire that can inflict the Brimstone Flames debuff.
  • Force and Finesse: Catastrophe is the Force, as his charges get faster when his health gets lower, and Cataclysm is the Finesse, as his fire breath becomes stronger and reaches farther as his health gets lower.

    The Leviathan

A giant angler fish that has a lure in the shape of a mermaid. She is intended to be fought after Plantera and before the Golem, but can theoretically be fought at any point in the game. The lure, the Siren, is actually it's own person that decided to help the Leviathan when it was near death. Back then, it was simply a really persistent angler fish, now roaming the seas as a titanic beast that eats divers and fishermen with help of the Siren's enchanting singing voice.
  • An Ice Person: The Siren can fire icy mist that freeze players.
  • Alluring Anglerfish: A giant-scale one with a mermaid lure.
  • Animalistic Abomination: A giant beast with fangs, claws, a siren lure, and beady eyes. And we only see half of it.
  • Animal Nemesis: Was this for the divers and fishermen of the area it had moved by, with folkore and myths being spread about the Siren in particular.
  • Art Evolution: The Leviathan goes from more curved and tuskless to a more ferocious look.
    • Played up more with the lure; starting out as a recolor of a sprite, then becoming it's own thing albeit rather plain, to a gorgeously designed and detailed siren.
  • Battle in the Rain: A storm starts when the Lure spawns.
  • Artistic License Ė Biology: According to its lore, once it became too big to move it willingly cut itself in half to increase mobility. How it didn't bleed out is anyone's guess.
  • Badass Adorable: The Siren is on the cute side of the monster spectrum, and can easily send you packing if you arenít prepared.
  • Bizarre Sexual Dimorphism: They minions it summons are apparently the males of its species.
  • Body Horror: The body we see now is only half of the creature, having split it's back half off by using a falling cliff.
  • Bonus Boss: Downplayed, as it still has an ďorderĒ in that it should be fought before Astrum Deus, the Astrageldon Slime and the Golem, but it doesn't need to be fought at any time to advance forward like the others.
  • Bullfight Boss: The Leviathan likes to charge into the player a lot, dealing tons of damage.
  • Confusion Fu: The Lure is already versatile, but with the attacks the Leviathan has as well, itís hard to predict what theyíre going to use next.
  • Contractual Boss Immunity: Both the Siren and the Leviathan are completely immune to knockback.
  • Cute Monster Girl: Compared to the rest of the cast, the siren lure is downright gorgeous with a nicely detailed sprite to help.
  • Dark Action Girl: The Siren is, rather obviously, female and is ready to kick the playerís ass when they start the fight.
  • Deflector Shields: The ice shield that the Siren periodically creates can reflect certain projectiles like bullets and arrows.
  • Dishing Out Dirt: The Leviathan spits out boulders to hit the player with.
  • Distracted by the Sexy: The Siren Lure apparently looks like a mermaid to attract unsuspecting fishermen for the Leviathan to devour.
  • The Dreaded: The divers became leery of the once calm beaches due to the presence of the Siren and Leviathan.
  • Dual Boss: The fight consists of the Leviathan herself and her Siren. Both must be killed for loot.
  • Early-Bird Boss: Meant to be fought by Plantera, but as it can be fought at any time, it can show up as early as the start of the game. This can also potentially be an Inverted Trope because of said factor, possibly being able to be fought after the Devourer of Gods and Supreme Calamitas.
  • Empathic Environment: Beyond the aforementioned rain, the background turns pitch black once the Leviathan spawns.
  • Expy: Of Lurerre the Abysroid, both being hulking aquatic behemoths with a lure resembling a mermaid. This is agiven, as the lure, prior to an update, was a recolor.
  • Fan Disservice: An attractive mermaid acting as bait for a giant angler fish-like abomination.
  • Fat Bastard: The Leviathan was a vicious predator that at one point had grown so big that it cut itself in half to continue moving. Itís still slow regardless.
  • Flunky Boss: During the fight, Paraseas and Aquatic Aberrations will spawn and attempt to attack you.
  • Flying Seafood Special: The Siren can fly around above the surface and the Leviathan can spawn above the seas.
  • Four-Element Ensemble: The Siren is part of this with the Sand Elemental, Cloud Elemental and Brimstone Elemental when the accessory Heart of the Elements is equipped, likely representing water.
  • Fragile Speedster: Not very tanky, but the Lure is quite quick, and her attacks come very fast.
  • Glass Cannon: The Lure isnít too bulky, but is very versatile and hard hitting with itís attacks.
  • Generic Doomsday Villain: Itís never made clear why the Siren is trying to lure everyone to their deaths, but itís implied it does so to help the Leviathan survive. Why it did this before that time is anyoneís guess.
  • Genius Bruiser: They both have signs of this. The Leviathan in particular for seemingly being just an animal is capable of forming strategies with the Siren ane comes in when itís aware trouble is starting to arise.
  • Half the Man He Used to Be: The Leviathan did this to itself by using a falling cliffside after having grown too large to move around swiftly. It survived.
  • HeelĖFace Turn: The Siren Lure can be summoned as a minion after defeating it.
  • Interspecies Friendship: A Mermaid and anAnglerfish. Downplayed, as they both are aquatic beings.
  • It Can Think: The Lure is not actually an extension of the Leviathan, but a separate living entity that had helped the Leviathan survive by bringing it corpses of fishermen.
    • The Leviathan itself shows signs of this as well, being able to form a mutual bond between itself and the Siren, as well as forming a strategy with her.
  • Jerk with a Heart of Gold: The Siren may be luring people to their unwitting doom, but it does seemingly care a lot for itís friend, the Leviathan.
  • Karma Houdini: Given that itís possible that they wonít even be fought during the game, they can get away with sending fishermen and divers to their watery graves.
  • Kill One, Others Get Stronger: Defeat the Lure first, and the Leviathan will start attacking more frequently.
  • Leitmotif: "Siren's Call," "Siren's War Cry" & "Forbidden Lullaby," Starting out with a somewhat somber melody that gradually gets more and more rocking.
  • Lightning Bruiser: In Expert Mode, the Leviathan charges at you a lot more than usual, which with itís large physique makes it very hard to dodge.
    • The Siren can be this while the shield is up, especially in Revengeance mode where she attacks more aggressively.
  • Make Me Wanna Shout: The Siren, rather obviously, uses quite a few sound attacks, like treble clefs.
  • Making a Splash: Sirenís very capable of doing this with attacks like bubbles and water spears.
  • Mighty Glacier: The Leviathan by itself is really tanky with 42,000 HP and hits like a runaway frieght train, but it barely moves vertically.
  • My Name Is ???: The Sirenís name at first is three question marks.
  • No Ontological Inertia: Averted, as you can try to kill the Leviathan first and the Lure will still be attacking. Justified, as the Lure is an entirely separate living being.
  • Odd Name Out: The Siren is the only one in Heart of the Elements to not have ďElementĒ in the name.
  • Our Mermaids Are Different: They're the lures of giant monstrous anglerfish, for one.
  • Palette Swap: The Siren formerly this for Lurerre the Abysroidís lure, but it is now averted as it has gotten two sprite redos.
  • Regenerating Shields, Static Health: The lure initially has an icy shield that must be broken to damage it; it can regain the shield if enough time passes.
  • Schmuck Bait: You can find the Siren Lure anytime, even right when you start the game. Any new player that kills it is going to be in for a nasty surprise...
  • Sirens Are Mermaids: The Mermaid lure sings and tries to bring in fishermen to be devoured by the leviathan.
  • Standard Status Effects: The Lure can inflict Confusion with itís treble clefs, as well as the Glacial status with the icy mist, immobilizing and halving the defense of a target.
  • Stationary Boss: Downplayed, as it will still chase after you if you move horizontally, but it doesn't move nearly as much as other bosses.
  • Super-Persistent Predator: The Leviathan just refuses to die, surviving near starvation and bisection and continuing to fight onwards.
  • Suspiciously Stealthy Predator: Somehow capable of pulling this off as well as the above trope, completely undetected until the Sirenís at low health.
  • Took a Level in Badass: The Lure is way more aggressive in Expert Mode than ever. The Leviathan also charges more frequently.
  • True Companions: The Siren seems to see it as this way between itself and the Leviathan.
  • Turns Red: If you leave the Ocean, both the Leviathan and her Siren become immune to damage.
  • Villainous Friendship: The Siren had helped the Leviathan survive for a large amount of itís life and is perfectly willing to help it out in battle.
  • Villain Song: Downplayed, as the Siren never really says a word, but itís implied the Siren is the one thatís singing throughout all three phases.
  • Wake-Up Call Boss: By virtue of the fact that it can be fought at any time, it can potentially be fought before King Slime or the Eye of Cthulhu.

    Astrum Deus

A large, heavily armored space worm that comes in large swarms. meant to be fought after Plantera but before Golem. Killing it will allow the player to mine Astral Ore from Astral Meteors.
  • Beam Spam: Much like Destroyer, it fires off lasers like a machine gun.
  • Bilingual Bonus: Its name means "Star God" in Latin.
  • Flunky Boss: Like Destroyer, it will spam Astral Probes as it loses HP.
  • Heavily Armored Mook: Astrum Deus has abnormally high Defense, greatly lowering the damage output of any weapon that hits him. Unlike the Devourer of Gods and Storm Weaver, however, he is still vulnerable to piercing weapons.
  • Recurring Boss: Is essentially a harder version of the Destroyer. At least, until Devourer of Gods comes along...
  • Segmented Serpent: Like the other Worm bosses.
  • Wolfpack Boss: You have to fight 10 of them at once.

    Astrageldon Slime

A giant space slime, like a much harder King Slime. Meant to be fought before Golem but after Plantera. Killing him spawns an Astral Meteor, but you need to kill Astrum Deus in order to mine it.
  • Beam Spam: Its only attack besides contact damage is to fire radial bursts of laser beams.
  • Blob Monster: Of course.
  • Flunky Boss: As it loses health, it will spawn Astral Slimes in huge quantities.
  • King Mook: To Astral Slimes.
  • Recurring Boss: Essentially boils down to a much harder version of King Slime.
  • Unskilled, but Strong: The Astrageldon Slime has simple behavior similar to that of the normal King Slime, but makes up for it with high health and deadly attacks.

    The Plaguebringer Goliath

One of the bio-weapons that was a result of a virus Yharim unleashed on the jungle which caused Queen Bees to begin rotting from the inside. Yharim then took them in and weaponized them, turning them into mindless, cyborg artillery platforms. They then became some of Yharim's deadliest minions, who undertook some of the Tyrant's most deadly schemes. Can only be fought in the Jungle, and is intended to be fought in between Golem and Duke Fishron.
  • Art Evolution: Twice. At first rather plain, then a bit more detailed as a Queen Bee recolor, then a more sleek design with fang-like mandibles.
  • Body Horror: Whatever parts of the Goliath's body that are not mechanical are rotted away from Yharim's virus.
  • Death from Above: When it says "MISSILES LAUNCHED, TARGET ROUTINE INITIATED!!!", a couple seconds later it will call in a huge bombardment of artillery shells from above. You best hope you're not on solid ground when this happens if you don't want to get blasted to shreds.
  • Doppelgšnger Spin: In Expert Mode and above, it will summons weaker clones of itself when it loses enough HP.
  • Empathic Environment: It will tint the screen greenish when summoned.
  • Flunky Boss: Summons Plague Chargers constantly.
  • Leitmotif: "Fly of Beelzebub", by DM DOKURO.
  • Lightning Bruiser: Its ramming attacks are extremely quick and hit like a truck. That's not even getting into its arsenal of explosive artillery...
  • Macross Missile Massacre: One of its favored methods of attack is to unload an enormous fusillade of rockets aimed at the target.
  • More Dakka: Besides firing rockets, one of its other attacks is to spray stingers at the target. In Expert mode, these explode too.
  • Mechanical Monster: An abomination made of rotted flesh and metal that functions as a mindless killing machine.
  • Turns Red: If you leave the jungle while fighting it, the Goliath will unleash a One-Hit Kill barrage of rockets before flying away.

    The Ravager
A mysterious abomination intended to be fought after Golem and before Duke Fishron. Gains an immense stat buff (and unique loot drops) after Providence is killed.
  • Beam Spam: Fires lasers in its second phase.
  • Bizarre Alien Biology: It's head can fly off and attack you while the body regrows a second one. There is also the natural purple flames on it's "shoulders."
  • Cognizant Limbs: Much like Golem, Ravager's arms can fire at you independently.
  • Detachment Combat: When its head loses all its HP, it starts flying around, trying to ram players. Said head will take Scratch Damage from any attacks until the body is destroyed.
  • Eldritch Abomination: A massive, grotesque monster that looks like an amalgamated fusion of flesh, bones, and rock, with 2 faces and purple flames erupting from its shoulders.
  • Giant Space Flea from Nowhere: There is absolutely no indication of what the hell the Ravager is or even where it came from. It's appearance is out of place with anything else that's in the game and its methods of attack are strange and vary widely (it launches fire, lasers and homing drill-rockets, to name a few). Even its drops (various craftable metals and cores) don't do anything to explain its origins. Even Polterghast, the other space flea, you can at least come to the conclusion that it's related to the Phantom Spirits. The Ravager has nothing.
  • Homing Projectile: It can launch drill-shaped missiles that home in on players before exploding for enormous amounts of damage.
  • Losing Your Head: As seems to be growing common nowadays, the Ravager's first head will detach and fly after you. It grows a second head in it's place.
  • Names to Run Away from Really Fast
  • Playing with Fire: Can launch bouncing fireballs.
  • Shielded Core Boss: Ravager's body is invulnerable until its head is killed.
  • This Is a Drill: Its homing missiles are shaped like rocket-propelled drills.
  • Took a Level in Badass: Ravager gains a truly enormous stat boost after Providence is killed, multiplying its health by almost 15 times. However, it also drops loot that it didn't before.

Post-Moon Lord Bosses

    The Profaned Guardians

The eternal servants of the Profaned God, formed from the souls of the worshippers that devoted their lives to protecting their God. They are meant to be the first boss you fight after Moon Lord, and can only be fought in the Daytime Hallow/Underworld.
  • Ascended to a Higher Plane of Existence: Having been devoted to Providence for so long, they ascend to become her eternal guardians.
  • Playing with Fire: They all attack using fire.
  • Shielded Core Boss: The main and most powerful Guardians is invulnerable until the other two are killed.
  • Turns Red: The main Guardian gains access to more and more attacks as it loses HP, going from simply firing spears to launching massive fireballs and leaving flame trails wherever it goes.
    • Also, if lured outside the Hallow/Underworld, they become immune to damage.
  • Resurrective Immortality: If killed, they will just reform from Providence later.
  • Wolfpack Boss: There are 3 Profaned Guardians that must be killed. The main, offense-oriented one charges at players while spraying flaming spears, the second defense-oriented one who circles the main one while firing spears, and the third support-oriented one that fires homing orbs from distance.

    Providence, the Profaned God
The air is burning...

An ancient deity that is the original source of all religions. Created in a clash between angels and demons, Providence is both light and dark, and doesn't take sides. The Devourer of Gods and his Sentinels were sent by Yharim to destroy her, but she concealed herself so well that it is still looking for her to this day. She is meant to be fought right after the Profaned Guardians, and like them can only be fought in the Daytime Hallow/Underworld, with her drops differing depending on where you killed her.
  • Empathic Environment: Causes the area to turn orange.
  • Exploited Immunity: Due to her natural affinities, Providence is inherently capable of surviving the overwhelming pressure and heat that comes with living inside the sun. The Devourer of Gods, for all its interdimensional abilities and cosmic steel armor, cannot.
  • Flunky Boss: Although plenty powerful by herself, she summons a large number of weaker Profaned Guardians during her fight.
  • Interface Screw: She inflicts the debuff Icarus' Folly, which greatly reduces flight time.
  • Leitmotif: Unholy Insurgency, also composed by DM DOKURO.
  • Loophole Abuse: She has a very particular attack that doesn't inflict damage conventionally, but instead "heals" the player by a negative amount. As a result, this attack gets to alter your health directly, completely bypassing your defense, your damage reduction, and your invincibility frames in the process.
  • Oxymoronic Being: A god of both light and darkness. Being born of the sun's light and the underworld's darkness, she is technically good and evil at the same time.
    • Even her name contradicts itself: since "profaned" means desecrated or defiled, she is essentially an unholy god.
  • Physical God: Specifically, a fire/sun god that is a perfect balance of light and darkness. Her powers even allow her to hide in areas where not even the Devourer's interdimensional tunneling can reach.
  • Playing with Fire / The Power of the Sun: Her main method of attack is obliterating her target with showers of explosive holy fire blasts.
    • This is also the one of the main reasons the Devourer can't find her: she hides herself in places too hot for even it to access.
  • Shoot the Dog: She's effectively a bystander in your rampage against Yharim and his forces, but she has to be killed to lure the Sentinels Of The Devourer as well as the Devourer of Gods itself out of hiding.
  • Tactical Suicide Boss: In one of her phases, she summons a number of deadly fireballs. Along with them, she summons green orbs that heal players that collect them.
  • True Neutral: Being composed of both light and darkness, Providence is a neutral god. She only destroys those who tamper with her artifacts, and only protects those who rever her. She only attacks the player because they found a piece of her inner core.
  • Turns Red: If you leave the Hallow/Underworld, she becomes invincible until you go back.

    The Polterghast

A mysterious being that appears in the dungeons after you kill 30 Phantom Spirits. Do not take it lightly. Meant to be fought after the Sentinels of the Devourer but before the Devourer itself, as the Ruinous Souls it drops are required to make the Comsic Worm functioning as the Devourer's summoning item.
  • Anti-Frustration Features: After killing him, you can use some of the material he drops to craft a Necroplasmic Beacon to manually summon him instead of farming more Phantom Spirits.
  • Big Creepy-Crawlies: Vaguely resembles a stag beetle.
  • Beam Spam: Its primary means of attack. They alternately bounce off of or pierce walls.
  • Combat Tentacles: In a similar vein to Plantera, it uses damaging hooks to move itself around.
  • Expy: It's last phase resembles the Metroid Prime.
  • Flunky Boss: Summons Phantom Turrets that chase players, and when at low health it will begin creating Phantom Spirits.
  • Frickin' Laser Beams: In its final phase as the Necroplasm, it summons 3 Phantoms that orbit it while maintaining a laser beam aimed at it. When the beam is blue, nothing happens, but if its red touching it will deal high damage.
  • Fusion Dance: Allegedly a fusion of numerous spirits into one creature.
  • Giant Space Flea from Nowhere: Like the Ravager, there is no explanation to where this thing came from or what it is. The only thing that's known about it is that it's some kind of spirit.
  • He Was Right There All Along: How do you summon Polterghast before killing it once? You don't, because Polterghast summons itself after the player kills enough Phantom Spirits in the dungeon.
  • King Mook: Seems to be one to the various spirits roaming the dungeon.
  • Leitmotif: Feral Amalgamation by DM DOKURO.
  • Merger of Souls: It is speculated to be an entire legion of souls that fused into a single, monstrous being.
  • Our Ghosts Are Different: For one thing, it's a giant spectral insect-like thing with a rocky shell that fires lasers.
  • Pinball Projectile: Its shots bounce off walls.
  • Punny Name: Its name is derived from a combination of "poltergeist" and "ghast", both of them referencing a type of spirit.
  • Sequential Boss Fight: The Polterghast has 3 phases, one as the Polterghast, one where it transforms into the Necroghast, and a final one when it transforms into the Necroplasm.
  • Shed Armor, Gain Speed: With every phase, more of its stone shell falls off and the faster it gets. Unfortunately, its Defense doesn't go down at all.
  • Shmuck Bait: Thinking of farming some Phantom Spirits right after Providence? Well, make sure not to kill that many, lest you want this spectral nightmare to show up and quickly murder you.
  • Turns Red: When in its second phase, its shots literally turn red and become more damaging. Of course, as it moves through its phases it will become more and more deadly.
    • If you leave the dungeon, Polterghast goes absolutely berserk until you go back in.

    The Sentinels of the Devourer 
A group of three wildly different entities that act as bodyguards and buffers for the Devourer of Gods. Before the player's arrival, they were trapped by the Profaned Flame using the Rune of Kos, which can only be obtained by defeating Providence.

Each Sentinel must be summoned by the Rune in a different location. Signus must be spawned in the underworld, the Storm Weaver must be spawned in space, and the Ceaseless Void must be spawned in the Dungeon. None of the bosses will enrage, but it's difficult to escape the area the Ceaseless Void and Signus spawn in without them despawning.

Signus, Envoy of the Devourer
An enigmatic being of unparalleled power, Signus is a deadly assassin capable of killing anyone at any time. When he made an attempt on Yharim's life, he suffered his first defeat at the hands of the Devourer whom Yharim summoned to aid him. Trapped in the eldritch worm's dimension, he and the Devourer reached a stalemate and Signus eventually gained a grudging respect for him, becoming his deadliest and most trusted Sentinel. Must be spawned in the Underworld.
  • The Ace: Highly efficient in his assassin occupation, capable of killing heroes like Statis, as well as the Devourer of Godís most trusted Sentinel.
  • All-Encompassing Mantle: Wears a purple cloak that obscures everything on him, minus his glowing eyes and his rather misshapen lower half.
  • Anthropomorphic Personification: One theory is that he is a manifestation of ethereal lights.
  • Art Evolution: The cloak becomes a bit more detailed as he gains two more eyes, all in pink, and his tail becomes more smog-like.
  • Badass Long Robe: An all encompassing one in purple.
  • Bizarre Alien Biology: His eyes are glowing purple teeth.
  • By the Lights of Their Eyes: The only thing on his face thatís usually always visible. Except theyíre teeth.
  • The Dragon: Of all the Sentinels, he is this to the Devourer of Gods.
  • Evil Sorcerer: One theory suggests he is a mage of insane levels of power.
  • Flunky Boss: Summons Cosmic Lanterns to provide melee combat assistance. Overcoming this requires weapons that deal more damage per hit, as weapons with low usetime and low damage will cause Signus to summon more Lanterns.
  • The Ghost: No one knows who the hell Signus really is, be it a wraith, a mage or an interdimensional being, nor what his backstory is like.
  • Glowing Red Eyes Of Doom, Take Warning: Three to four glowing and narrowed ones before the sprite update.
    • Now has been changed into six glowing eyes.
  • Hero Killer: The actual one who murdered Statis.
  • Humanoid Abomination: The only member of Yharim's command that is even remotely humanoid. Although it's painfully obvious that he is anything but human.
  • Lightning Bruiser: Travels very fast, teleports a lot, and hits like a truck.
  • Our Ghosts Are Different: A theory is that he is a wraith of sorts.
  • Playing with Fire: Can summon cosmic flames to torch the player alive.
  • Predecessor Villain: In a sense. He made his mark on Statisís clan before Devourer of Gods, deriving their arts from him.
  • Professional Killer: Can be contracted to kill just about anyone.
  • Shapeshifting: Capable of doing this by virtue of the fact that he lacks a true form.
  • Teleport Spam: As part of his stealth motif.
  • Villain Respect: It eventually became a servant of the Devourer after developing a grudging respect for the worm, which was the only one who ever defeated him.

Ceaseless Void
An Eldritch Abomination of horrific power created when the Devourer was still practicing dimensional tunneling, the Ceaseless Void is a sentient tear in reality barely stabilized by a cosmic steel shell and impossibly powerful magic. While research was done on it, it was eventually deemed too powerful to control and left in the Dungeon, but not before the Devourer took ownership of it via magical contract. Must be spawned in the Dungeon.
  • Achilles' Heel: The Dark Energy swarms are sensitive to knockback, allowing the player to survive even in the tightest of choke points in the Dungeon with decent weaponry. Another weakness of the Ceaseless Void is weapons with high usetime as they will shorten the transition between phases and may help keep the Dark Energy at bay.
  • Apocalypse How: The second possibility if itís casing is shattered: The void fills up and takes out the entire universe, making this a X-4 level. Otherwise, it will collapse in on itself and die.
  • Art Evolution: Has been redesigned to look more jagged, like a maw filled with teeth held together by crystals.
  • Cessation of Existence: If its shell is broken, it could possibly end all of existence, trapping everything in a void between realities.
  • Eldritch Abomination: The somewhat-sentient remains of a flawed teleportation attempt by the Devourer, held in place by a Cosmilite structure which resembles a generic arcanum.
  • Flunky Boss: Relies on the melee combat of its Dark Energy minions to attack, but will not hesitate to try and freeze you with its own attacks.
  • Freeze Ray: Its only attack besides contact damage is to fire a large orb that fires lasers at the player while they're swatting away the Dark Energy swarms. This is how the player ends up on the receiving end of the Cosmic Freeze debuff, normally reserved for the Cosmic Discharge legendary.
  • Glass Cannon: Even with 999,999 defense, 200 HP is still quite pathetic at the time when the player should face it. It circumvents this by turning invincible whenever a new horde of Dark Energy is summoned.
    • Actually, not even. It's now 150.
  • Person of Mass Destruction: Anything that would go near itís regurgitated globs of shadow would die instantly. If its armor were ever to be compromised, it could possibly expand and engulf all of existence.
  • Psycho for Hire: The Ceaseless Void is only a Sentinel of the Devourer by the loosest definition: although it is bound to his will, it has no mind of its own and its only drive is to consume the life force of all living things.
  • Shielded Core Boss: Only turns vulnerable if all its Dark Energy is destroyed.
  • Void Between the Worlds: It is a living version of this. It was created on accident by virtue of the fact the Devourer of Gods didnít master the portal jumping.

Storm Weaver
The last of the Devourer's species after the worm himself caused humanity to drive it to near-extinction. The Devourer found it and, taking pity on it, nursed it back to health and brought it to Yharim, who equipped it with cosmic steel plating just like the Devourer himself. It now remains in space, devouring Wyverns for sustenance, and while it is still rather mentally underdeveloped due to a lack of intelligent creatures to absorb, it is still a force to be reckoned with. Must be spawned in space.
  • Animalistic Abomination: The most animal-like in the form of a worm, and also more or less Devourer of Gods Jr.
  • Always a Bigger Fish: The creature feasts upon Wyverns that are in the air with it.
  • Anti-Air: Only attacks if the player is in the air.
  • Attack Its Weak Point: Its tail in the first phase. Attacking anywhere else will result in Scratch Damage.
  • Empowered Badass Normal: At first just a newborn of the species Devourer of Gods hails from, with the armor and powers it had become a powerful being.
  • Flunky Boss: Releases Statis Probes to gun the player down as it hangs in the sky.
  • High-Altitude Battle: It's in space.
  • Laser Guided Tyke Bomb: More or less this for the humans who hunted his species to extinction.
  • Last of His Kind: One of two with the Devourer of Gods.
  • No-Sell: Piercing weapons have no effect on it.
  • Segmented Serpent: However, its piercing immunity makes normal tactics for worm enemies useless.
  • Shed Armor, Gain Speed: After you beat its first phase, its armor shatters and it becomes much faster and more deadly, albeit losing all its defense. Strangely enough, it has more HP in its unarmored state.
  • Turns Red: "Defeating" it once causes it to lose its shell, respawn, and become far more aggressive.

    The Devourer of Gods
Click here to see his final form 

An eldritch, biomechanical worm that resides in a pocket dimension, only leaving to crush and eat any beings of sufficient strength. It drew the attention of Yharim after devouring a platoon of his finest. Instead of killing it, Yharim struck a deal with it, which was a supply of powerful entities to consume in exchange for his eternal servitude. The Devourer accepted and now serves as one of his most powerful mercenaries. To be fought after the Polterghast but before the Bumblebirb.

  • All Your Powers Combined: To a degree. While obviously similar to Storm Weaver, the Devourer of Gods also uses Ceaseless Void's primary attack and changes its behaviour and method of attack on a timer like Signus. In lore, it's also said to gain the abilities of anyone it consumes.
  • Art Evolution: It gradually got more and more detailed through its many balances, culminating in the eldritch monstrosity that is his final form.
  • The Assimilator: It absorbs the powers of anything it consumes.
  • Beam Spam: Follows the proud tradition of worm bosses spraying projectiles all over the place. Aside from the obligatory Frickin' Laser Beams, it also fires homing arrows, nebula spheres, more lasers, spheres that shoot lasers... the list goes on.
  • Boss Banter: The creature's surprisingly talkative during its fight.
  • Bullfight Boss: Well, half the time. It spends fifteen seconds flying and another fifteen seconds chasing players on the ground... though this is never an excuse to underestimate its insane killing power.
  • Contractual Boss Immunity: Piercing weapons are the age-old counter to any worm, and many late-game weapons can even do damage for every single tick they touch an enemy. The Devourer of Gods, on the other hand, despawns all projectiles after they damage it regardless of which segment it touched. This renders a great number of otherwise powerful weapons next to useless against it.
  • The Dragon: With Calamitas gone, he serves as Yharim's right-hand man and go-to monster when he wants something killed.
  • Deadpan Snarker: It sounds positively exasperated if you get hit by its tail, criticising your dodging skills.
    "Are you honestly that bad at dodging? Of all my segments to get hit by..."
  • Eaten Alive: Ninety percent of all player deaths against this boss will be to its freakishly powerful jaws. Notably, this was also apparently Yharim's preferred method of executing traitors.
  • Empathic Environment: The screen darkens in its presence.
  • Flunky Boss: Regularly sheds Stasis Probes as it gets hit.
  • Eldritch Abomination: A giant predatory worm of immense power that possesses reality warping capabilities and resides in its own dimensional plane. Its even more evident in its second form, which looks downright monstrous.
  • From Nobody to Nightmare: It started life as a ravenous but otherwise normal worm, albeit capable of assimilating the power of those it killed. Eventually it grew so strong that it developed the ability to tear holes into alternate realities and set up home there, where it turned into the cosmic monstrosity it is now.
  • Gameplay and Story Segregation: Its lore describes it as capable of crossing through dimensions to launch ambushes on its victims. Save for possibly explaining where it keeps pulling clones of itself from, no indication of this ability is seen in-game.
  • Gravity Master: Its mere presence amplifies gravity and slices the flight time of all players in half, and its Warped debuff makes sure they start coming back to Earth fast.
  • Hero Killer: Used by Yharim to kill Braelor and Statis after they betrayed him. On a meta level, the Devourer is notoriously competent at ripping unfamiliar players to shreds time and time again.
  • Interface Screw: Simply being near it inflicts either Extreme Gravity or Warped, which cripple flight time and distorts falling speed respectively.
  • Kill the God: It's in the name. It loves devouring gods and absorbing their powers.
  • King Mook: To every worm in the game and even the other worm bosses to some extent. Most prominently, the Armored Diggers seen roaming underground look almost exactly like miniature Devourers of Gods.
  • Leitmotif: Scourge of the Universe by DM DOKURO.
  • Lightning Bruiser: Moves scarily fast, dishes out One-Hit Kill attacks like nothing, clocks in at over one million life - and that's just its first form...
  • Names to Run Away from Really Fast: The Devourer of Gods. Even the name of its theme qualifies in its own right.
  • No Fair Cheating: Trying to butcher it won't do anything but earn an angry response. Trying to outrun it with accessories like the Warp Core or Soul of Dimensions cause it to speed up with you - potentially reaching speeds so high that he catapults himself off the world map entirely. Because of this, the Warp Core was coded to not work during the fight in a joint effort from Thorium and Calamity's dev teams.
  • No-Sell: Like Storm Weaver, it is immune to piercing weapons.
    • Unlike any other enemy, attempting to instakill it with Cheat Sheet's butcher function does absolutely nothing.
  • Omnicidal Maniac: It used to tunnel through the world, slaughtering anything and everything it could find.
  • One-Hit Kill: It hits for 1500 damage in Revengeance mode, which is more than enough to kill in one strike unless the player has invested fully into survivability.
  • Pet the Dog: The Devourer's sparing of the Storm Weaver can seem like this. Subverted with the fact that it would not hesitate to destroy the Storm Weaver should it ever turn against him.
  • Psycho for Hire: It doesn't serve Yharim out of respect so much as the opportunity to chew on some more gods. It is unknown whether the Devourer could actually overthrow the Jungle Tyrant if he really wanted.
  • Reality Warper: Its very presence causes gravity to go haywire and it can rip holes through dimensions.
  • Segmented Serpent: The thing is even larger than Destroyer, and like Storm Weaver cannot be pierced, making most anti-worm tactics pointless.
  • Sequential Boss: Once you kill the damn thing, nothing happens for a bit...then the Devourer returns, extra powerful and extra angry.
    It's not over yet, kid!
  • Stronger with Age: Countless years of hunting, killing, and consuming its foes along with their power has turned this creature from a mere worm into the cosmic serpentine wrecking ball you have to fight.
  • Super-Persistent Predator: Once summoned, the Devourer of Gods will not stop until you kill it or it kills you. Even if you teleport away from one corner of the world to the other, it will hunt you down.
  • Super Speed: Can effortlessly overtake the player, even with Seraph Tracers equipped... which isn't much, but it also scales with their acceleration. While this isn't too significant in normal gameplay, using other mods to massively increase your speed will also increase the Devourer's speed as he chases you. Even if you're hurtling along at over four thousand miles per hour, the Devourer of Gods is still faster.
  • Trash Talk: Yes, really. The interdimensional god-killing cosmic worm is not only the chattiest boss, but also very prone to throwing out taunts and snide remarks whenever the opportunity presents itself.
  • Took a Level in Badass: The Devourer used to be nothing more than a direct Destroyer clone that could be fought immediately after Plantera. It was then overhauled, buffed, moved to post-Providence, and continued receiving a mixed bag of balance adjustments - culminating in its infamous Revengeance ability.
  • Turns Red: When you deplete its enormous health bar, all goes quiet for a few seconds...then the Do G comes back with a new sprite and a deadly new arsenal of attacks.
  • Villain Respect: After reaching a stalemate with Signus, it eventually developed a grudging respect for the ethereal assassin.
  • Wolfpack Boss: It summons a smaller version of itself christened the "Devourer of Thots" in Revengeance Mode when at 20% life.

    The Bumblebirb

Odd creatures created by Yharim as a failed experiment to create clones of Yharon's species. They were left to their own devices in the Jungle, where they wander aimlessly and attack anything that poses a threat to the Jungle Tyrant. They can reproduce with themselves to create new Bumblebirbs, however they have a hormone that shuts down their reproduction if there are too many Bumblebirbs nearby. Meant to be fought in the Jungle after the Devourer of Gods and right before Yharon.
  • Degraded Boss: Weaker Bumblebirbs are spawned by Yharon during his final phase.
  • Fluffy the Terrible: Is an efficient killer and a scarily dangerous boss, but its ridiculous name makes it hard to take seriously.
  • Flunky Boss: Summons smaller Bumblebirbs in its battle.
  • Lightning Bruiser: Moves impossibly fast, has above-average health, and shears off enormous amounts of HP with each attack.
  • Psycho Prototype: A failed attempt to create more of Yharon's species resulted in these Bumblebirbs.
  • Self-Duplication: All Bumblebirbs have the ability to do this. The only thing stopping them from overpopulating the Jungle is their built-in protocol that shuts down their reproductive hormones if there are too many Birbs nearby.
  • Unskilled, but Strong: Unlike most of the other endgame bosses which use complex bombardments of projectiles and gimmicky mechanics to screw you over, the Bumblebirb's only method of attack boils down to "run at the player and ram them". However, it deals so much damage with each attack that the Birb can get away with it.

    Jungle Dragon, Yharon

The Jungle Tyrant's personal pet who saved him from a fiery demise ages ago. He now serves as Yharim's most powerful and deadly minion, as well as his closest friend.
  • Empathic Environment: Tints the screen orange, possibly from the enormous amounts of fire he's tossing around.
  • Final Boss: Of course, Supreme Calamitas still trumps him in difficulty, but he is the ultimate normal boss in the mod.
  • Flunky Boss: Spams small Bumblebirbs in his final phase.
  • Morality Pet: Yharon is living proof that Yharim still has the capacity to love another living thing.
  • Leitmotif: Infernal Catharis, also by DM DOKURO.
  • Lightning Bruiser: Moves incredibly fast, has enormous HP, and deals near-lethal damage with each hit.
  • Living Emotional Crutch: Yharon was the only thing comforting the Jungle Tyrant during times of depression.
  • Playing with Fire: He uses all manner of apocalyptic-level fire attacks, from explosive fireballs to meteor showers to gigantic flaming tornadoes. Its a miracle the place isn't blasted into a crater yet.
  • Taking You with Me: Upon death, he explodes into a massive ring of fireballs that home in on the nearest player.
  • Teleport Spam: Can do this in his final phase.
  • Turns Red: He very clearly defines that he wants the player to remain in a certain area (read: gigantic One-Hit Kill firenadoes), and should you leave the area he gets even more dangerous until you return.


    Supreme Calamitas/Supreme Catastrophe/Supreme Cataclysm

The true form of Calamitas, and currently the only Superboss to exist. The ultimate boss of the Calamity Mod, who drops developer-grade equipment.
  • Bullet Hell: Every now and then, she will turn invulnerable fly off the screen and spam a gridlike barrage of fireballs along with homing blasts that erupt into more bullets.
  • Dirty Coward: Insults the player for using Cheat Sheet's butcher function, but immediately backs herself into a corner if godmode ever gets involved. See Hypocrite below.
  • Easy-Mode Mockery: If you kill her on Normal Mode, she doesn't even drop anything for your troubles.
  • Empathic Environment: Tints the screen blood-red.
  • Everyone Has Standards: Like the Undertale character she takes after, she considers the player too powerful to exist. Justified due to the fact that the player is far from a normal human at that point, having absorbed a myriad of powers from the other bosses, tapped into supernatural energies, gained the ability to manipulate their own fear and stress, and so much more. Above all though, the player has the power of creation, something no one else has. To top it all off, there isn't a single recorded past ruler of the jungle who wasn't a tyrant. Who's to say the player will be no different?
  • Damage-Sponge Boss: Blows every other boss out of the water with 4,000,000 HP in Expert Mode (and even more in Revengeance).
  • Hypocrite: Chides the player if they butcher her using Cheat Sheet, but will back down and surrender if godmode from HERO's mod or a similar cheating modification is enabled.
  • Leitmotif: Shares the MIDI cover of Boss 2 with her normal counterpart.
  • Lightning Bruiser: The most extreme version in the game. She can dash across the screen in a fraction of a second, has tons of health, and can kill you swiftly in a few hits.
  • Oh, Crap!: Has one if she realizes you are using some form of God Mode from a cheat mod.
    "Ugh..uh, y'know, we don't have to keep fighting."
  • Playing with Fire: Launches fireballs and flaming missiles that explode and inflict the devastating Abyssal Flames debuff.
  • Recurring Boss: A much, much harder version of Calamitas.
  • Shout-Out: Her dialogue is more or less a blatant Expy of Sans.
  • True Final Boss: The hardest boss in the Calamity Mod.
  • Villainous Breakdown: As you slowly overpower her in her fight, sheíll retort with screams of rage, eventually coalescing into full blown hysterics, before finally losing hope and outright begging the player to kill her.
  • With Great Power Comes Great Insanity: The curse Yharim inflicted upon her after she betrayed him has turned her into a being of godlike power and speed rivaled only by the Devourer of Gods itself. It's also driven her completely Ax-Crazy.

Supreme Catastrophe and Supreme Cataclysm

Supreme versions of Calamitas' brothers.
  • Back from the Dead: Again.
  • Playing with Fire: They shoot fireballs.
  • Recurring Boss: Much more difficult versions of their normal counterparts. However, they don't chase as much, mostly firing to limit the player's movement while Calamitas whales on them.