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.
  • Leitmotif: Guardian of the Former Seas
  • Names to Run Away from Really Fast: Ironically, it's the easiest Calamity Boss.
  • Sand Worm: That used to be a water worm, no less.
  • Took a Level in Badass: Gains a boost in stats when Skeletron is defeated.
  • 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.
  • Wolfpack Boss: In Revengeance, you have to fight 3 of them at once.

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.
  • Leitmotif: 1NF3S+@+!0N
  • Ultimate Life Form: It’s lore entry describes it as this.

    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.
  • Leitmotif: The Filthy Mind
  • Load-Bearing Boss: Subverted. Yharim presumes that killing the Hive Mind will not put an end to the Corruption.
  • 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.
  • The Worm That Walks: A colony of creatures travelling in a group, combining their abilities to form a much more powerful being.
  • 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.
  • Art Evolution: The worms aren't finished yet, but the Hive has become a lot more mushroom shaped, with faces with rows of sharp teeth across it's body and a shifting eye in the center.
  • Body Horror: Not only do the Perforators look grotesque as all hell, resembling diseased and infected masses of flesh, the Perforator Hive has an attack that causes your blood to boil.
  • Back from the Dead: The Perforator Hive resembles a floating chunk of the Brain of Cthulhu. Considering that the Perforators used to be parasites within the Brain of Cthulhu before it died...
  • Death from Above: The Perforator Hive's main attack is raining red blasts from above that inflict the Burning Blood debuff.
  • Eyeless Face: The Perforators, whom were once a single Eater of Worlds, lack eyes after developing within the Brain of Cthulhu.
  • Gameplay and Story Integration: The lore for the Perforators states that they were parasites within the Brain of Cthulhu before it was killed. Sure enough, their hive resembles half of the Brain of Cthulhu flipped on its side.
  • Flunky Boss: After the Perforator Hive takes enough damage, it spawns one of the Perforators proper; the Hive (the main boss) can only be killed after killing all three worms. It will spawn them in order from weakest to strongest.
    • In addition, it spams Perforator Minis once the larger ones are killed.
  • Leitmotif: Blood Coagulant
  • Segmented Serpent: The Perforators, obviously.
  • Was Once An Eater of 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 Minibosses

A seahorse-like miniboss found in the ocean, possibly the one where Desert Scourge originated from and the one Amidias ruled over.
  • Butt-Monkey: When it appeared as though it had a boss theme made for it, it turned out to be a Halloween joke, with Devourer of Gods breaking in to steal the show. Two months later, it’s confirmed it wasn’t getting a theme.
  • Leitmotif: Subverted. It gets a grand total of five seconds of “Seahorse Scrutiny” before the entire forest burns to a crisp. Few months later, DM Dokuro says he will not be getting a theme.
  • Making a Splash: Fires a few water shots at the player.
  • Jump Scare: Can move through bricks, causing this sometimes.
  • Seahorse Steed: Implied, given that it looks like it’s wearing something akin to a horse tack.

    Cloud Elemental 

A hardmode miniboss akin to the Sand Elemental, originally reverred as a deity like the other Elementals, and just like them, forgotten in time. Found at the Floating Islands or the Ocean.

    Earth Elemental 

A hardmode miniboss found in the Underground and Cave layers, and another one of the elementals. Originally a part of a scrapped boss idea.


The standard infantry units for Yharim’s army, being Queen Bee corpses intertwined with machinery. The heavy artillery variant, Plaguebringer Goliath, serves as the King Mook. Spawns in the Jungle randomly.
  • Boss in Mook Clothing: A surprisingly tough miniboss, the hardest one to fight at that.
  • Bee Afraid
  • Lightning Bruiser: Like the Plaguebringer Goliath, it is fast, relatively sturdy and can strike the player with several tough blows.
  • Palette Swap: Nearly identical to Plaguebringer Goliath, with green eyes and a slightly lighter shade of black for it’s body.
  • Plague Master: They’re infamous for this, spreading it wherever they go.
  • Poisonous Person: By extension of the above trope.
  • Warm-Up Boss: More or less served as this for the actual Plaguebringer Goliath, who fights similarly to the standard units.

    Great Sand Shark 
A planned miniboss to be fought in the Desert.

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.
  • Animate Inanimate Object: A giant ice cube with crystals around it to look like a snowflake.
  • 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!
  • Ramming Always Works: It's last phase simply has it fly right into you.
  • 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 that used to be revered as a god, who eventually lost power after humanity began to lose faith in her. She is summoned in the mod-exclusive Profaned Crags, and is intended to be fought after the Destroyer and before the other two Mechanical Bosses. Gains a buff in stats if Providence is defeated.

  • 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: ..Somewhat. Sources say Brimstone Elemental was originally to have two eyes that fuse into one while she attacks, though it appears now she is a full on cyclops.
  • Defeat Equals Friendship: If you collected the Rose stone, you can summon her to fight for you.
  • Elemental Embodiment: Of fire.
  • Full-Frontal Assault: It's completely naked, yet lacks any genitalia or nipples.
  • Flaming Hair
  • High-Heel–Face Turn: Joins the player as a summonable minion if you obtained the Rose Stone.
  • How the Mighty Have Fallen: She and her “sisters” make it look like Desert Scourge had it easy. Originally praised as goddesses, they lost their followers as the years went by. Unlike the others, however, Brimstone Elemental got it even worse, when 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.
  • Took a Level in Badass: Gains a large boost in stats when Providence is defeated.



A mysterious, extremely powerful mage whose family was put to death by a rivalling faction. After she wreaked bloody vengeance on her family's killers, she wandered to the Jungle, driven by a mysterious voice, where Yharim found her and recruited her into his army. But the good in her still existed, and eventually she betrayed Yharim to help some of his strongest enemies. The Jungle Tyrant then cursed her in a rage, and eventually the curse drove her insane and caused her to return to Yharim's forces, where he relinquished the curse in exchange for her utmost loyalty and unwavering cruelty towards all who would oppose him. 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, bumpy 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.
  • Autobots, Rock Out!: “Forbidden Lullaby” amps up the heavy metal after gradually building up in intensity from “Siren’s Call” and “Siren’s War Cry”.
  • Battle in the Rain: A storm starts when the Lure spawns.
  • Barbie Doll Anatomy: For the Siren, at least.
  • Artistic License – 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 aren’t prepared.
  • Bait-and-Switch Boss: A bit literally in this case. Different than the norm however is that both are fought at the same time.
  • 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 “order” 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.
  • Bragging Rights Reward: The Leviathan pet can only be obtained by defeating Supreme Calamitas on Death Mode.
  • 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, it’s hard to predict what they’re going to use next.
  • Conjoined Eyes: The old sprite for the Leviathan had Pupula Duplex, where in the eyeballs contained two yellow pupils.
  • 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 player’s ass when they start the fight.
  • Death is Cheap: The Siren can be killed off and later be summoned, now on your side, by using the Heart of the Elementals.
  • Decapitation Presentation: Uniquely, the Leviathan’s trophy is the only one to actually be a head; the Siren’s.
  • 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.
  • Elemental Embodiment: The Siren turns out to be this, being more or less the Water Elemental under a new name.
  • 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.
  • Face Framed in Shadow: The top half of Siren’s face was hidden in her old sprite, with only her eyes visible.
  • 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. It’s still slow regardless.
  • Female Monster Surprise: While the Siren seems rather obviously female, what isn't as obvious is that the Leviathan also is. Truth in Television, as female angler fish are far larger and deadlier than the practically helpless males.
  • Flunky Boss: During the fight, Paraseas and Aquatic Aberrations will spawn and attempt to attack you.
  • Flying Broomstick: Well, possibly. The Siren's capable of flying and is often seen riding on top of her trident.
  • Flying Seafood Special: The Siren can fly around above the surface and the Leviathan can also spawn above the seas and chase you without even needing to be in the water.
  • 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, representing water and confirming it’s status as the Water Elemental.
  • Fragile Speedster: Not very tanky, but the Lure is quite quick, and her attacks come very fast.
  • Full-Frontal Assault: Just like the other Elementals, the Siren lacks clothing, but also has Barbie Doll Anatomy.
  • Glass Cannon: The Lure isn’t too bulky, but is very versatile and hard hitting with it’s attacks.
  • Glowing Eyes of Doom: Both of them had this in some of their older sprites.
  • Generic Doomsday Villain: It’s never made clear why the Siren is trying to lure everyone to their deaths, but it’s implied it does so to help the Leviathan survive or out of revenge. Why it possibly did this before that time is anyone’s 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 it’s 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.
  • High-Heel–Face Turn: The Siren Lure can be summoned as a minion after defeating it.
  • Horned Humanoid: The Siren has orange horns on the sides of her head.
  • How the Mighty Have Fallen: Given she’s one of the Elemental’s, she was ultimately forgotten in time by her followers. Unlike her sisters, however, she came back with the Leviathan by her side.
  • Human Head on the Wall: Well, as close as it can get given the context, but the Siren is decapitated and her head serves as the trophy.
  • 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 it’s friend, the Leviathan.
  • Karma Houdini: Given that it’s possible that they won’t 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 it’s large physique makes it very hard to dodge.
    • The Siren can be this as well while the ice shield is up, especially in Revengeance mode where she attacks more aggressively and by using the Leviathan as a meat shield.
  • Make Me Wanna Shout: The Siren, rather obviously, uses quite a few sound attacks, like treble clefs.
  • Making a Splash: Siren’s 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 Siren’s 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 elemental to not have “Elemental” in the name.
  • Off With Her Head!: The Siren is on the recieving end of this, given the trophy is her head.
  • Our Mermaids Are Different: They're the lures of giant monstrous anglerfish, for one, and two, they’re actually water elementals, as seen with the Heart of the Elementals.
  • Palette Swap: The Siren was formerly this for Lurerre the Abysroid’s lure, but it is now averted as it has gotten two sprite redos.
  • The Power of Friendship: A recurring theme revolving around the Siren:
    • One possible theory for her seeking out the Leviathan is out of loneliness ever since she fell from grace like the other Elementals, and thus repaying the beast due to more or less being the closest thing she’s had to a friend.
    • What’s the name of the item that allows you access to a Super Mode? Siren’s Heart.
    • The best example would be the rare drop known as The Community, described as "The heart of (most of) the Terraria community,” and is one of the best items in the game.
  • Ramming Always Works: The Leviathan will do this every now and then.
  • 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.
  • Revenge: There’s implication’s this is Siren’s driving motivation, given that she’s leading humans to their deaths. Though, it’s never stated when exactly she started doing this.
  • Ridiculously Cute Critter: The Leviathan pet you can get at the end of the game. Interestingly, it resembles it’s older sprite.
  • 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 Siren lure sings, trying to bring in fishermen to be devoured by the Leviathan while having the shape of a Mermaid.
  • Slime Girl: Implied when the Siren is summoned by the Heart of the Elementals, where she is a lot more blue than before.
  • Standard Status Effects: The Lure can inflict Confusion with it’s treble clefs, as well as the Glacial status with the icy mist, immobilizing and halving the defense of a target.
  • Start of Darkness: Letting the Siren be forgotten like that was NOT a good idea.
  • 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 Siren’s at low health.
  • Theme Music Powerup: At first, the Siren's theme is serene and unsuspecting. Then, when she begins her attack, the song picks up and gains intensity. And when the Leviathan itself finally shows up, the song descends into full metal territory.
  • 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 it’s life and is perfectly willing to help it out in battle.
  • Villain Song: Downplayed, as the Siren never really says a word, but it’s implied the Siren is the one that’s 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.
  • Yellow Eyes of Sneakiness: Both of them have it and are associated with stealth and trickery.

    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.
  • Grenade Spam: One of the worms will have a layer of orbiting probes that spew Astral Mines, stationary orbs that linger in the air before exploding. The frequency of the mine-laying increases with each worm killed.
  • Heavily Armored Mook: Astrum Deus has abnormally high Defense, greatly lowering the damage output of any weapon that hits him. 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.
  • Turns Red: The more worms you take down, the faster the worm with the orbiting probes will churn out Astral Mines.
  • 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. In Death Mode, it can churn out an additional barrage of aimed lasers at a very fast pace.
  • 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.
  • Turns Red: It starts off rather weak. As it takes damage, its damage, defense, and speed gradually go up.
  • 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 an experiment that Yharim conducted to weaponize the Queen Bees. However, unbeknownst to him, one of his head scientists had added a weapon that the Tyrant had deemed too deadly for use: Nanomachines that would cause victims to rot from the inside out while still being kept alive. The plague spread through the entire jungle, infecting entire hives, and rather than destroy the plagued bees Yharim instead made them his living weapons, turning them into some of his deadliest servants: the dreaded Plaguebringers. Meant to be fought after Golem but before Duke Fishron.
  • Action Bomb: In Revengeance, it can summon Plague Mines that chase players before exploding.
  • Artificial Zombie: A combination of this and Plague Zombie, being bees that have been infected by a nano-virus that turns the poor creature into a rotting carcass enslaved to Yharim’s will before being fitted with missile pods and armor plating. Oh, and they can spread their horrible condition to others too.
  • 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.
  • Bee Afraid
  • Big Creepy-Crawlies: Was originally a giant bee like the Queen Bee. It has since been transformed into an undead cyborg monstrosity.
  • Body Horror: Whatever parts of the Goliath's body that are not mechanical are rotted away from Yharim's virus. It’s pretty obvious that the things you fight are no longer alive by this stage. Hopefully.
  • Cyborg: After their infection, Yharim had them augmented with missile launchers and armor plating. Although it looks like they’re more machine than bee at this point, as their liquified remnants are dripping out of their armor.
  • Death from Above: When it says "MISSILES LAUNCHED, TARGETING 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.
  • Degraded Boss: Right after Golem is killed, weaker versions of itself simply called Plaguebringers can start showing up in the jungle, identifiable by their green eyes as opposed to the Goliath's red.
  • The Dreaded: Feared both for their incredible destructive power and the murderous plague they spread in their wake.
  • Empathic Environment: It will tint the screen greenish when summoned.
  • Flunky Boss: Summons Plague Chargers constantly.
  • King Mook: Serves as one for the Plaguebringers, down to their sprites being almost identical.
  • 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.
  • Names to Run Away from Really Fast
  • Ninja Pirate Zombie Robot: A giant rotting undead robot bee armed to the teeth with military-grade weaponry and capable of spreading a deadly plague wherever it goes.
  • Our Zombies Are Different: Technically, the Goliath isn't even alive: it's essentially an dead, diseased, rotting bee that only operates due to being composed of mostly machinery.
  • Palette Swap: Of the standard Plaguebringers.
  • Person of Mass Destruction: It is described as being able to easily raze an entire city to the ground through it's artillery. And due to the deadly plague it spreads, anything that isn't blown up will be turned into an apocalyptic wasteland.
  • Plague Master: Hey, it's in the name.
  • Poisonous Person: By extension of the above trope.
  • Red Eyes, Take Warning
  • 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.
    • As of a recent update, it can do the same with its claws when they're destroyed, turning them into invincible flying drones with lasers.
  • 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.
  • Art Evolution: Formerly, Providence was a massive moth with red wings. Nowadays, she’s a large statue-like mass with flaming wings. Her new resprite takes this even further by giving her a more cohesive design with an actual head and purple crystals lining her “shoulders.”
  • Big Creepy-Crawlies: Her old design was this, instead of the mass of rock and flame she is currently. She still has some traits, primarily her “head” having mandible-like protrusions and multiple “eyes.”
  • 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.
  • Expy: She highly resembles a Volcarona.
  • Female Monster Surprise: You wouldn't know that she's in fact a goddess by looking at her.
  • Flechette Storm: One of her attacks summons a swarm of flaming spears to pincushion you with.
  • Flunky Boss: Although plenty powerful by herself, she summons a large number of weaker Profaned Guardians during her fight.
  • Hold the Line: Occasionally Providence will retreat into her shell and become completely invulnerable while spraying either a maelstrom of flames or a barrage of flaming spears. In both cases, dodging is your only option.
  • Interface Screw: She inflicts the debuff Icarus' Folly, which greatly reduces flight time.
  • Leitmotif: Unholy Insurgency, also composed by DM DOKURO.
  • Lightning Bruiser: She's surprisingly fast for her bulk and deals huge amounts of damage, both on contact and through projectiles.
  • 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 holy fire blasts. She shoots volumes of fireballs, exploding flares, fireballs that explode into more fireballs, lingering fire blasts, flaming spears, fireballs that launch more get the point.
    • 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.
  • Power Gives You Wings: Whenever she's in her active state, she has 6 distinctive seraph-style wings made of pure flame.
  • Rock Monster: She's more or less a magically-charged core surrounded by fire and a rock shell.
  • 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.
  • Stance System: Able to hide in a cocoon to avoid damage. Unfortunately, she can still attack in this state.
  • 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, speculated to be an amalgamation of numerous vengeful 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: The Polterghast, in particular it’s last form the Necroplasm 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: in fact, it has damage reduction that actually goes up as it loses health.
  • 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 God’s 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.
  • 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 that’s usually always visible. Except they’re teeth.
  • The Dragon: Of all the Sentinels, he is this to the Devourer of Gods, partially due to his power and partially due to the fact that he's the only Sentinel with actual intellect (since Storm Weaver is more animalistic and Ceaseless Void is mindless).
  • Death from Above: At half health, he will begin raining cosmic fire from the sky.
  • 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.
  • 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.
  • My Greatest Failure: He has only ever failed an assassination once, and that was against Yharim. Said failure eventually resulted in his mutual defeat at the hands of the Devourer.
  • 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 Statis’s clan before Devourer of Gods, with the clan deriving their arts from him.
  • Professional Killer: Can be contracted to kill just about anyone. He has only ever failed one mission.
  • Purple Eyes: Six of them. Well, pink, but it’s close enough,
  • Red Eyes, Take Warning: His old sprite had four of them.
  • Shapeshifting: Capable of doing this by virtue of the fact that he lacks a true form.
  • The Spook: 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.
  • 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 it’s 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.
  • Omnicidal Maniac: Despite lacking a proper mind, the Ceaseless Void is solely driven on by an all-encompassing desire to consume life.
  • Person of Mass Destruction: Anything that would go near it’s 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.
  • The Worf Effect: It took the combined powers of Calamitas and the Devourer of Gods to seal it away.
  • 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 didn’t 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.
  • 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 Storm Weaver, on the other hand, not only takes Scratch Damage from any attacks that don't hit its tail, it also 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.
  • Empowered Badass Normal: At first just a newborn of the species Devourer of Gods hails from, it was given the same kind of armored plating and weaponry as the Devourer, making it a formidable opponent despite its mental immaturity.
  • 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: Not only does it take 1 damage from any attacks that don't hit its tail, 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.
  • Arch-Nemesis: To Providence, her being his one target that got away from him. To the present day, he's still hell-bent on killing her and assimilating her powers, having dispatched all his Sentinels to find her.
  • Art Evolution: It gradually got more and more detailed through its many balances, culminating in the eldritch monstrosity that is his final form. And even then, it’s still getting a few resprites.
  • 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 laser walls, 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.
  • The Dragon: With Calamitas gone, he serves as Yharim's right-hand man and go-to monster when he wants something killed. Even after Calamitas comes back, he still holds a position as the Jungle Tyrant's most deadly mercenary.
  • The Dreaded: The mere fact that it existed drove humanity to promptly hunt its species to extinction before they could get as powerful.
  • 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. Believe it or not, it got even worse when it agreed to serve Yharim and the Jungle Tyrant decided to give him superpowered, nigh-impenetrable cosmic steel armor.
  • 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.
  • Last of His Kind: He was until he discovered the Storm Weaver. Although it was technically his fault, as he gained such a terrifying reputation that humanity hunted his species to extinction.
  • Leitmotif: Scourge of the Universe by DM DOKURO. His second phase instead boasts Universal Collapse, a remix of the aformentioned song.
  • 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: Unlike any other enemy, attempting to instakill it with Cheat Sheet's butcher function does absolutely nothing. In fact, the Devourer will actually mock you if you do so.
    You can butcher...ME?
  • Omnicidal Maniac: It used to tunnel through the world, slaughtering anything and everything it could find.
  • One-Hit Kill: In Deathmode, its head segment deals several hundred thousand damage, enough to kill any player many times over.
  • 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.
  • Theme Music Powerup: As if its Leitmotif, Scourge of the Universe, wasn't awesome enough, when you kill it all goes quiet for a bit...then Universal Collapse kicks in as the Devourer unleashes its final form in one last attempt to destroy you.
  • 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. It has been nerfed a bit since, but it still remains one of the deadliest bosses the mod has to offer.
  • 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.
  • Turns Red: When you deplete its enormous health bar, all becomes calm for a few seconds...then he 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 "Another Worm Boss" 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.
  • Leitmotif: Murderswarm.
  • 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 air is getting warmer around you.

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.
  • Doppelgänger Spin: As he takes damage, several transparent clones of himself appear around him a la Brain of Cthulhu.
  • The Dragon: Yharim's personal pet, closest companion, and deadliest minion. Bonus points for actually being a dragon.
  • 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.
  • Hold the Line: When he hits critical health, he will go invulnerable for about a minute, gain about 60% of his HP back, start spamming small Bumblebirbs, and raining bouncing fireballs from the sky.
  • 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.
  • Damage-Sponge Boss: She blows every boss out of the water with a HP of 4,800,000 on the highest difficulty, and not much less on easier ones.
  • Easy-Mode Mockery: If you kill her on Normal Mode, she doesn't even drop anything for your troubles.
  • Eldritch Abomination: Her very presence hampers your healing, she is ungodly powerful and she can spawn clones of herself which are plenty damn nasty in their own right as well, and if the backstories involving her are of any indication, she is capable of drying up entire oceans and laying waste to entire civilisations.
  • 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?
  • 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.
  • No Fair Cheating: She has a large number of special restrictions in place to prevent you from cheesing her fight.
    • She scales her damage depending on how good your equipment is.
    • If you survive tanking 30 of her attacks or take less than 20 damage from one of them, she will instantly kill you.
    • Mounts and teleporters/Magic Mirrors are disabled during the fight.
    • She kills the Nurse when the fight begins. In addition, healing from sources besides potions is greatly reduced.
    • She will kill you instantly if she detects you under any form of godmode.
  • Oh, Crap!: She used to have a moment of this 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.
  • Red Eyes, Take Warning: She IS the red eye.
  • Smug Snake: She’s powerful, there’s no denying that, but she’s very cocky and smug when she enters the fight, and as she starts to lose her cocky demeanour disintegrates into impotent rage, death threats and ultimately, despair when she realises that she’s too weak to win or run away.
  • 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, she’ll 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.


A Lethal Joke Character spawned forward from memes in the Discord. Whether or not you'll take it seriously is entirely at your discretion. It is intended to be fought after Supreme Calamitas.
  • Ascended Meme: A Running Gag in the Discord that became a real boss.
  • Damage-Sponge Boss: Has a whopping 50 million HP, the most of any enemy in the entire mod.
  • All Your Powers Combined: Cycles through one of the vanilla enemy AIs very frequently. This is also its undoing as it can become "None," a blank spot early on in the AI list, or any number of AIs that would force it to despawn.
  • Early-Bird Cameo: It's an early sprite for Yharim's in-game appearance but with googly eyes.
  • Lethal Joke Character: An immensely powerful boss that can use any vanilla enemy power and can disable all of your armor and accessories. Of course, it's all Played for Laughs.
  • Level Drain: Inflicts a debuff aptly named "NO U", which temporarily removes all your armor and accessories.
  • Take That!: At poorly-created mod bosses, the most notorious of which are those featured in the Tremor mod.

Other Characters and Walking Spoilers

The resident Big Bad and Jungle Tyrant. Not too much is known about him besides the fact that his family was thrown into the Underworld for an unknown offense, and Yharon saved him before the pair crushed the corrupt leaders of the Jungle and took over as its master. Yharim's goal seems to be total control of Terraria and his influence is felt throughout almost every aspect of the mod, but he has yet to appear in person.
  • Always Someone Better: To the player once the Auric Tesla armor is acquired. His official appearance shows him clad in what appears to be a mechanically augmented version of the armor, fueled by his Stims. This also gets inverted somewhat - one of his family's superweapons, the Astreal Defeat, is eventually made obsolete by the Heavenly Gale, one of the two ranged weapons created to compete with the Exoblade (the other being the Photoviscerator.)
  • Arch-Nemesis: He has made several over the course of the story. Notable ones are Braelor, Permafrost, and Providence.
  • Cool Sword: Tyrant Yharim's Ultisword, and by extension the True Tyrant's Ultisword, a massive and powerful blade that is all but stated to belong to him.
  • Deal with the Devil: After hearing that the Devourer of Gods had just butchered a platoon of his best soldiers, he struck a deal with the worm: in exchange for his eternal loyalty, he would feed the Devourer any entities of power he could capture. The Devourer accepted.
  • Even Evil Has Loved Ones: Despite all his asshattery towards practically everyone he meets, he seems to genuinely love his pet Yharon. In addition, the murder of his family was stated to be his Start of Darkness.
  • Even Evil Has Standards: When he accidentally created a type of infectious nanomachines that could rot their victim from the inside out, even he promptly declared them too dangerous for use and locked them away. Unfortunately for him, someone snuck them into his newest project, infecting the entire Jungle and creating the Plaguebringers, Plague Chargers, and Plaguebringer Goliaths.
    • The lore items gotten from certain bosses (which are implied to be written by him) show that he has at least a few redeeming qualities, such as pitying the Desert Scourge (which he inadvertently created).
  • Evil Is Petty: His default response to things he disagrees with is usually Disproportionate Retribution.
    • When the Sea King Amidias refused to help him resurrect the Moon Lord, Yharim had Calamitas evaporate the whole ocean, laying waste to his kingdom and causing the Desert Scourge to go on a rampage.
    • Similarly, he had Calamitas obliterate the Underworld just because he hated it. Similarly, he wanted to learn ice magic from Permafrost just so he could lay waste to the Underworld.
    • On the subject of Permafrost, when the archmage refused to help him Yharim trapped him and his fortress in a chunk of ice forever, creating Cryogen.
    • Upon hearing that Calamitas betrayed him, he promptly cursed her with a spell so powerful that even though it was imperfectly cast, it still managed to drive her into insanity.
  • Freudian Excuse: His family was incinerated in the Underworld and only he survived because Yharon saved him. He consequently decided to overthrow all of the previous Jungle Tyrants and take over in their place.
  • Hoist by His Own Petard: Pretty much everyone Yharim was a dick towards in the lore ends up being useful in one way or another to the player, who's objective is to kill him.
  • I Have Many Names: He has a lot of titles that pop up throughout the game, although the most common one is Yharim, Jungle Tyrant.
  • Jerkass Has a Point: It's implied that the Underworld was indeed morally corrupt beyond repair.
  • Lean and Mean: Nine feet tall and has the ideal slim body for the job.
  • Mad Scientist: He's mentioned several times to conduct many scientific experiments. He created the Plaguebringers through nanotech/robitics and the Bumblebirb through genetics, and he also is implied to have made Yharim's Stimulants, a potent buff consumable.
  • Powered Armor: Wears a mechanized version of the Auric Tesla armor.
  • Roaring Rampage of Revenge: Right after Yharon saved him from being immolated, his next move was to use Yharon's power to annihilate all the leaders of the Jungle and take over.
  • Royals Who Actually Do Something: Once Yharim realized that Braelor posed an actual threat, he and Yharon went to deal with his army personally. It's stated that Yharim was so insanely powerful (the lore describes him as a "living force of nature") the only reason Braelor survived was because his men all threw themselves at Yharim to buy him time.
  • Summon Bigger Fish: His new solution to most of his problems is to throw the Devourer at it.
  • The Plague: He created a version of this by making virulent nanomachines that would rot away at the target while using its life force to sustain itself. While he tried to contain it, they eventually got released, with disastrous consequences.
  • The Beastmaster: He seems to have a penchant for controlling beasts. Jungle Dragon Yharim is the notable example but he has also shown to be able to control Queen Bees (and by extension the Plaguebringer Goliaths).
  • The Unfought: While he is intended to be a Final Boss, currently he is nowhere to be found besides in the lore.

Yharim's go-to man for weaponsmithing. Little is known about him, and most of his lore is spread solely through Word of God and Word of Dante.

He is responsible for creating the Exoblade, a powerful amalgamation of blades from across the world, and Draedon bars are named after him. In this version of Terraria's story, he also built the Mechanical Bosses.

At some point in the story, he becomes overcome with power to rival the Tyrant King himself, which goes to his head. Once Yharim and Yharon are dead, he takes the throne and is the last enemy you face on your journey.