%%Uncomment the Zero Context Examples only when you add context!

Given the loads of {{Non Player Character}}s, monsters, and bosses. It's no doubt that there's a character list for this game. This page also NeedsWikiMagicLove.


[[folder:The Player]]

The player character starts off with nothing but a shortsword, pickaxe, and axe. (If you bought the Collector's Edition, you also get a carrot which you can use to summon a pet bunny.) Over the course of the game they will explore the world, build a home, find treasures, defeat ever more challenging foes, and eventually, plunge the world into a battle between the ancient spirits of light and dark.
* TheAce: Architect, engineer, tactician, warrior, mage, technician, electrician, inventor, alchemist, savior, destroyer. The PC is all these things and more. There is no weapon they cannot wield, no metal they cannot forge, no creature they cannot slay, no power they cannot control, and no challenge they cannot conquer.
* AmbiguouslyEvil: It's not hard to see why some believe the fan theory mentioned on the YMMV page. They are willing to sacrifice others to ensure their life improves and most bosses seem to avoid them unless necessary.
* AntiHero: Regardless of the decisions they make, the player does a few very questionable things during their journey, like murdering the Clothier and [[spoiler: Guide]] with their respective [[spoiler: voodoo dolls]] to draw the bosses connected to them out of hiding.
* ClothesMakeTheSuperman: The large majority of the player's power resides in the clothing and accessories that they wear. Often, these items are enchanted to bestow perks in addition to their function (for example, "Armored" Rocket Boots increase your defence as well as their normal function of allowing you to fly).
* CelestialBody: They can acquire this with the hardmode-exclusive Twilight dye.
* CurbStompBattle: As the player becomes more powerful, they will start becoming able to steamroll enemies that previously put up a good fight. By the time you unlock Hardmode, you could be [[OneHitKill one-hit-killing]] many regular enemies.
* DidYouJustPunchOutCthulhu: Many of the bosses the player character fights are {{Eldritch Abomination}}s -- in some cases, they are literally parts of Cthulhu himself. By the end of the game, he/she beats [[spoiler: the Moon Lord, the brother of Cthulhu and the closest it gets to the real deal himself]].
* HeroicMime: The player character has no dialogue, but communicates with [=NPCs=] just fine.
* HeWhoFightsMonsters: Eventually after punching out many a EldritchAbomination, the amount of sheer power that the character gains effectively [[HumanoidAbomination makes them one themselves.]]
* HumanoidAbomination: An end game character is both much more durable than the average mortal and fully capable of wielding weapons and magics that are nearly cosmic in scope. They can have minions made of star matter, armor forged solar energy and other worldly metals, weapons that summon falling meteors with every swing, ect. Very little about how the player fights is at all human in the end and a battle involving a high tier player can look outright terrifying from an outside perspective. On a side-note, the more stranger dyes can also turn you into one visually as well, if you wish to complete the image.
* InstantExpert: No matter what weapon/item s/he gets their hands on, they are able to wield it flawlessly. Be it swords, bows, guns, magic spells of untold power, [[ArsonMurderAndJaywalking yoyos]]...
* KleptomaniacHero: You can take ''everything''. Literally everything. Found an underground cabin? You can loot any treasure chests that are in it. Then take the chest. Then steal all the light fittings. Then disassemble the ''walls'' and take those too.
* NiceJobBreakingItHero: By killing the Wall of Flesh, the player turns a slightly corrupted world into one threatened to be overrun by huge, competing, pockets of [[CrapsaccharineWorld Hallow]] and [[CrapsackWorld Corruption or Crimson]].
* OneManArmy: The player will kill thousands of enemies over the course of a full game. The game awards the player with banners for every 50th kill of a particular enemy, and the player can also obtain a Tally Counter which tells them exactly how many enemies of each type they have killed. In some of the special events, such as the Goblin Invasion, they actually do take on entire armies single-handedly.
* PersonOfMassDestruction: The amount of devastation you can wreak is ''cataclysmic''. It also doesn't help that your weapons tend to be stuff along the lines of [[WaveMotionGun Wave-Motion Prisms]] , [[MoreDakka rapid-fire]] [[MacrossMissileMassacre rocket launchers]] or [[{{BFS}} swords that literally pull stars from the heavens and send them crashing onto your enemy.]]
* SuperToughness: Through enhancing their vitality with Crystal Hearts and Life Fruits, they can permanently increase their health four-fold, to the point that they can shrug off some of the more lethal attacks.
* VillainProtagonist: In order to progress past a certain point, in this game that averts DeathIsCheap when it comes to the [=NPC=]s, they need to summon, then kill, an EldritchAbomination by sacrificing the current guide. Although how they feel about this depends on how they view the guide and his frustrating quirks.
* WasOnceAMan: The player starts out perfectly baseline mortal, although as time goes on and they start both gathering all sorts of energies and weaponry, they eventually become an [[HumanoidAbomination unnatural]] PhysicalGod.
* WeakButSkilled: They're really squishy without sufficient armor, even with maximum health, can't harm anything without a weapon, and can't collect resources without tools. However, they're able to make a plethora of weapons, armor, and tools with whatever resources they have, and they put them all to good use to take down beasts many times their size and strength and mine ores and resources no one else can.
* YouGottaHaveBlueHair: The player character can have any hair color, and the random character generator will happily give you blue, pink, or any color of hair.

!! Non-Player Characters

[[folder: As a Whole]]
All [=NPCs=] can move into a player's town if they have, a room with light, a large item (such as a table, dresser, bookshelf, etc.) and a comfort item (such as a chair, bench, bed, etc.), a door and some criteria specific to the NPC.
* ActionGirl: Each and every one of the female [=NPCs=] can defend themselves when push comes to shove.
* ActionSurvivor: Most of them are relatively normal people with normal jobs- unfortunately, being 'normal' isn't enough to protect you in the DeathWorld that is ''Terraria''.
* BadassCrew: They can all participate in combat, and can easily become this if enough are gathered in one place.
* DamselInDistress[=/=]DistressedDude: The Goblin Tinkerer, Stylist, Mechanic and Wizard are all initially found tied up in one place or another, and must be freed to be recruited.
* DungeonShop: They can live anywhere that isn't the Corruption or Crimson, as long as it fits the requirements for a house--including underground, producing this trope.
* IdleAnimation: Are prone to these when the PC isn't interacting with them. This includes talking to and playing games with fellow [=NPCs=] and sitting on nearby chairs.
* ImprobableWeaponUser: Most of the NPC's whose functions aren't directly related to combat tend to be this. Examples include the Nurse and her needles, the Party Girl's Confetti Guns, and the Truffle's spores.
* LoveDodecahedron: The Nurse likes the Arms Dealer. The Arms Dealer reciprocates, but is also not above flirting with the Dryad and Mechanic, neither of which like him back. The Mechanic, meanwhile, has a mutual attraction with the Goblin Tinkerer, [[CannotSpitItOut but neither of them is willing to voice it]].
* TookALevelInBadass:
** A meta-example: prior to the 1.3 release, the [=NPCs=] were defenseless against enemies and reliant on the player to deal with any attackers. The 1.3 update armed them and made them ready to fight anything that invades the town.
** And more straightforwardly: once you reach Hardmode, some of the [=NPCs=] switch to more powerful weapons, and can utterly decimate even (pre-Hardmode) bosses without breaking a sweat.

[[caption-width-right:350:They say there is a person who will tell you how to survive in this land... oh wait. That's me.]]
The first NPC, who you start out with in every world. As befits his name he guides you with tips of varying levels of helpfulness, and if you show him any material item he can tell you what can be crafted from it.
* BadassNormal: The most "average" of the [=NPCs=] and besides having a vast amount of insight he's seemingly normal, yet can still hold a fight along with the rest of them when pushed enough times.
* GuideDangIt: His purpose is to [[AvertedTrope avert this]] for new players: if you give him a crafting material, he can tell you everything you can make with it, where it can be crafted, and the crafting recipe itself. He will also tell you the next possible objectives towards progression (at least until the later portions of Hardmode).
* TheGenericGuy: Besides his knowledge, he's just a normal guy.
* TheScrappy: Invoked. He originally got hate from the beginning for appearing in every world, being unkillable, and subject to mass ArtificialStupidity. At this point he's somewhat become the Scrappy ''in-game'', with other [=NPCs=] occasionally making comments about how much they're annoyed with his antics.
* ShapedLikeItself: As shown in the caption quote, one of the first tips you receive from the Guide is that there is a Guide, although he quickly realizes how redundant this information is.
* TheSmartGuy: Both of the booksmart ''and'' StreetSmart variety.
* SmugSuper: See the caption quote. Now remember this is the same guy who holds every single bit of knowledge of the world of Terraria.
* TheStraightAndArrowPath: Uses a simple Wooden Bow to defend himself if forced into combat. Come Hardmode, he upgrades to flaming arrows.
* VoodooDoll: You can find his in the clutch of Demons flying about in the Underworld. Equipping it allows the player to attack the Guide even though [=NPCs=] are normally immune to player attacks, and tossing it into lava instantly kills him. However, a doll incinerated in the Underworld (whether tossed by a player or simply dropped by a killed Demon and not caught) will summon the Wall of Flesh.

[[caption-width-right:350:Did you say gold? I'll take that off of ya.]]
As the player amasses more money, the Merchant will appear to relieve them of that burdensome cash. He sells mostly general use items, some potions, and spare tools in case the player loses theirs and lacks the materials to make more.
* BunnyEarsLawyer: Lies that he doesn't periodically sell junk and believes [[Main/CheesyMoon the moon is made out of cheese]] yet is essential early on, all the while keeping to his promise that his prices aren't high as they could be.
* CrutchCharacter: The wares he sells are useful in the early game, but by the time Hardmode comes around just about all of them have been surpassed in function or usefulness.
* HonestJohnsDealership: Judging by his dialog. He's constantly trying to foist off items of dubious usefulness like "perfectly ventilated armor". Despite his claims of not being a junk dealer, he's tried to sell useless angel statues to other [=NPCs=], and he sells dirt blocks for exorbitant prices on the international market.
* KnifeNut: If forced into combat, he will defend himself with throwing knives.

[[caption-width-right:350:Would you like a lollipop?]]
The nurse will move in once a player has found a heart crystal to expand their maximum health above the starting 100. For a price, she can restore the player back to full health in an instant, and remove any debuffs.
* AllPeriodsArePMS: All of the female characters get ''really'' nasty during a Blood Moon, which the devs have confirmed is a joking reference to periods. The Nurse is no exception, as her lines become various levels of bitchy, either accusing the player of being a hypochondriac or complaining that they dare to get injured.
* AmusingInjuries: Several of her lines has her casually mentioning re-attached body parts or other grievous wounds.
* CombatMedic: Will heal herself or other wounded [=NPCs=] after attacked, and when not helping her allies stay alive she'll be fighting off enemies with poisoned needles.
* DrJerk: She tends to become a bit sarcastic, especially when [[BerserkButton the player wants her to heal them at high health]]. Approach her on the brink of death, [[JerkWithAHeartOfGold and she'll quickly lose this attitude]].
* HealingShiv: She also throws needles at the [=NPCs=] to heal them, and will occasionally use them to heal herself. She throws poisoned needles at enemies instead.
* HelloNurse
* {{Tsundere}}: The Nurse can come off as this: Some of her quotes suggest a TeamMom mentality, others that she only sticks around because you pay her.
* TurnYourHeadAndCough: One of the random quotes when you talk to her, even if your character is female.

[[caption-width-right:350:NO SMOKING IN HERE!!!]]
A dwarf who moves in after you find grenades/dynamite or craft sticky bombs and can sell you more of them and with many other explosive products.
* AxCrazy: This guy is a little too fond of explosive tumult.
* GrenadeSpam: Defends himself through the use of Grenades.
* LeaningOnTheFourthWall: If you talk to him, he may ask you to sign a "Griefing Waiver".
* OurDwarvesAreAllTheSame: He has many of the stereotypical dwarf's traits. He is significantly shorter than other [=NPCs=] and has a beard. Furthermore, his mining helmet, lantern, and the fact that he sells Explosives fits the trope of dwarves preferring underground environments.
* TheRival: To the Arms Dealer.
* StuffBlowingUp: His speciality.
* YourAnswerToEverything: Got a problem, ''any'' problem? Easy -- blow it up.

[[folder:Dye Trader]]
[[caption-width-right:350:I bring you the richest colors in exchange for your riches!]]
A trader and purveyor of dyes, who wears a colorful Arabian-styled outfit. He sells the Dye Vat, which allows the player to start making their own dyes from natural resources. If you bring him particularly exotic plants, he will trade them for special, magical dyes.
* ColorCodedMultiplayer: In a multiplayer server, he sells Team Dye that changes the color of the armor/clothing that it's applied to the respective color of the team if you are on one.
* TheFashionista: He's the most colorfully dressed, and all of his lines to the player are about dyes and/or appearance.
* NiceHat: A deep purple turban that matches the front of his robes.
* ShoutOut: His line about rich mahogany is a reference to ''Film/{{Anchorman}}''.
* SinisterScimitar: The weapon he uses to fight is explicitly called "Exotic Scimitar".

[[caption-width-right:350:The sands of time are flowing. And well, you are not aging very gracefully.]]
A centuries-old NatureSpirit, who will move in if you have defeated one of the regular pre-Hardmode bosses. She sells various natural items like acorns and seeds, and she can tell how corrupt the world has become (and will rebuke you for it).
* ADayInTheLimelight: She becomes a playable character in ''[[VideoGame/DungeonDefenders Dungeon Defenders 2]]''.
* AllPeriodsArePMS: During the blood moon but not as bad as the Nurse and Mechanic.
* GardenGarment: She's clad in naught but vines and leaves. Players can buy it during Halloween and wear it themselves.
* GreenThumb: Nearly everything she sells has something to do with growing vegetation or altering nature. When monsters are nearby, she'll cast a barrier of leaves that buffs up the defense nearby players and [=NPCs=], increases their life regeneration, and gives them the [[CounterAttack Thorns]] ability. The more bosses you defeat, the more powerful the barrier gets against enemies.
* MsFanservice: Not entirely visible in game, save for a risqué painting of her that can appear in the dungeon, but definitely in most fanart.
* NiceGirl: She's one of the kinder NPC[=s=] in the game ([[AllPeriodsArePMS when it's not a Blood Moon]]), passionate about the wellbeing of her neighbors and the environment and one of the few people who is on good terms with the Truffle.
* OurFairiesAreDifferent: Being a dryad, she's a fey creature associated with plantlife and happens to be one of the few fairies in the game who has a humanoid shape.
* Really700YearsOld: "I wish [Arms Dealer] would stop flirting with me. Doesn't he realize I'm 500 years old?"
* ShoutOut: "The sands of time are flowing, [[PrinceOfPersia and you are not aging gracefully]]."
** Another reference is one of her possibles names being [[WesternAnimation/MyLittlePonyFriendshipIsMagic "Celestia"]].
* {{Stripperiffic}}: Those vines don't cover a lot of skin.
* StatusBuff: When threatened, she will generate an aura that boosts all nearby {{Non Player Character}}s and players by increasing their defense and regen, while giving them a permanent Thorns effect. On enemies, however, the aura burns them for a small amount of DamageOverTime.
* WellIntentionedExtremist: She encourages the player character to make the world a CrapsaccharineWorld by spreading the Hallow, although as of 1.3 she'll praise the player even more for completely purifying the world.
* YouGottaHaveBlueHair: Her hair is grass green and done up in a long, curling braid.

[[folder:Arms Dealer]]
[[caption-width-right:350:Hey, this ain't a movie, pal. Ammo is extra.]]
He moves in after you find a gun. He sells guns and bullets, and will also sell you illegal gun parts if you catch him at the right time.
* ArmsDealer: Of the Gun Shop Owner type. He can sell you illegal parts, however.
* BloodKnight: He loves the sheer amount of enemies he has the chance to kill during Blood Moons. After all, it's much more fun than trying to hold a conversation with his neighbors while the event lends most of them their own JerkassBall.
* CasanovaWannabe: He has a tendency to flirt with the ladies. The Dryad is sick of him doing so with her due to the massive age difference, the Mechanic already has a crush on the Goblin Tinkerer and is completely oblivious to his innuendo-laden jokes, and he may occasionally mention that he's preparing for a date with the Nurse or say that he's into what she's selling.
* CovertPervert: If the Halloween event is any indication, he's not above having spare of the Nurse's clothes lying around and selling them.
* DoubleEntendre: He may mention that he "wants what the Nurse is selling" and the Mechanic may mention that he's asked her if he could press her pressure plates.
* TheGunslinger: Wields either a Flintlock Pistol pre-hardmode, or a [[MoreDakka Minishark post-hardmode]].
* KineticWeaponsAreJustBetter: Notice how he only sells weapons and ammo that are kinetic?
* MoreDakka: The guy loves his firearms. He also sells the infamous Minishark, which can then be upgraded into the extremely fast-firing Megashark.
* TheRival: To the Demolitionist.
* ShotgunsAreJustBetter: He sells them in hardmode.
* YouDoNOTWantToKnow: It's best he didn't answer HOW he made the Minishark, even stating this trope's name in a conversation with the player.

[[caption-width-right:350:They say you're strong, well, I know strong. Let's see if you measure up.]]
A new NPC introduced in 1.3.4, unique in that most of the items he sells can only be bought using Defender Medals. He sells the items required to summon the Old One's Army, as well as several weapons useful for completing the event.
* GlobalCurrencyException: You can use Terrarian cash to buy the two things you need to summon the Old One's Army, as well as ale, from him. Everything else in his inventory can only be bought with Defender Medals.
* GrievousBottleyHarm: Defends himself against monsters by throwing mugs of ale at them.
* GuestFighter: [[http://wiki.dungeondefenders2.com/wiki/Tavern#Tavernkeep Originally from]] [[VideoGame/DungeonDefenders Dungeon Defenders 2]].
* HisNameReallyIsBarkeep: One of his possible names is literally "Barkeep".
* MrExposition: With regards to the Old One's Army.

[[caption-width-right:350:No, no, no... There's TONS of different grays! Don't get me started...]]
He's a painter, dressed in a red cap and white overalls. He sells everything you need to paint your world and decorate your walls, as well as a number of decorative paintings, particularly landscapes. Many of the paintings and wallpapers he sells depend on location and the moon phase.
* AbnormalAmmo: Uses a Paintball Gun in self-defense.
* ShoutOut:
** His dialogue and name pool make several references to other painters, particularly [[Series/TheJoyOfPainting Bob Ross]].
** One of the wallpapers he sells is called [[Music/{{Prince}} Purple Rain Wallpaper]].

[[caption-width-right:350:I don't have a mommy or a daddy, but I have a lot of fish! It's close enough!]]
The only child NPC, who can first be found sleeping out on the ocean. He gives out rewards in exchange for finding special, rare fish.
* BrattyHalfPint: He's possibly the most annoying character in the game. At times he even refers to the player as an errand boy.
* ConvenientlyAnOrphan: He may occasionally mention that he's parentless, which partially justifies why he can be found in the middle of nowhere in the CrapsaccharineWorld that is this game.
* InfantImmortality: He can be hurt by monsters or traps like the other townsfolk, but instead of dying bloodily like the others, he vanishes in a puff of smoke with the message [[ScrewThisImOuttaHere "[name] has left"]] when his health runs out.
* {{Jerkass}}: This kid has nary a redeeming feature. He's an egotist who actively pulls cruel pranks on his neighbors and views the player as nothing more than a personal slave.
* KnifeNut: Throws [[ShamuFu Frost Daggerfish]] to fight.
* SmallNameBigEgo: Everyone else in his eyes are his underlings, despite the fact that unlike him they're all adults with a myriad of useful skills and wares.
* SpoiledBrat: He frequently screams that he wants the daily quest fish immediately.

[[caption-width-right:350:For you I think we'll do something... low maintenance.]]
A new NPC introduced in 1.2.3 that is found inside a spider nest, [[DistressedDamsel bounded by webs]] and can be freed. She can change your hair style. She also sells various hair dyes.
* AxCrazy: DownplayedTrope as she's only this on blood moons. The other female [=NPCs=] only go as far as telling you not to bug them. This one? She will threaten to go Theatre/SweeneyTodd on you with her styling tools if you don't leave her alone.
* AllPeriodsArePMS: During the Blood Moon, which the devs have confirmed is a joking reference to periods, she threatens you with her [[{{ImprobableWeaponUser}} scissors and razor]].
* ColorCodedMultiplayer: In multiplayer servers, she sells Team Hair Dye that makes the player's hair change colors depending on what team they're on.
* DamselInDistress: You first find her tied up in a spider nest, and have to rescue her before she moves in.
* DiegeticInterface: Many of her hair dyes can be used as ''Franchise/DeadSpace''-style indicators such as life, mana, depth, biome, team, time, etc.
* TheFashionista: She's all about the freshest hair styles, defends herself with Stylish Scissors and has got a nice dress and pair of high heels.
* HairstyleMalfunction: Possibly. Upon her death, her head and hair split into two different chunks, unlike other long-haired NPC[=s=]. What little hair is attached to her head is a spiky, misshapen mess, and it might not all be that surprising given how she might complain of her hair being loaded with spider web when you rescue her.
* ShearMenace: Uses Stylish Scissors when forced to fight monsters.
* SeriousBusiness: Bad hair days. She may mention a disastrous attempt to dye her hair using some of the Dye Trader's stock or comfort the player if they supposedly have an awful hair problem.

[[folder:Goblin Tinkerer]]
[[caption-width-right:350:Hey, does your hat need a motor? I think I have a motor that would fit exactly in that hat.]]
After the player repels the first Goblin Invasion, the Goblin Tinkerer can be found underground. He is an invaluable asset to any player, for he can reforge the player's items to make them more powerful; he also sells a couple of items that are extremely useful in the mid-game (Rocket Boots for flying, and the Tinkerer's Workshop for combining items).
* ExpectingSomeoneTaller: Lampshaded.
* GrapplingHookPistol: Sold for 2 gold in case the RandomlyDrops were unkind that you couldn't find an actual hook for one.
* InterspeciesRomance: He and the Mechanic have a mutual crush on each other.
* {{Jetpack}}: Sells Rocket Boots for 5 gold, and combined with Hermes Boots at the workbench to make Spectre Boots.
* LampshadeHanging: He hangs a lot of lampshades on the goblins such as the fact that they carry the spike balls they drop, the true direction they approach from due to the sun's left-to-right pattern (making West and East flipped), the fact that thieves don't even steal anything and that tattered cloth from their scouts can be used to start a war with them.
* LuckBasedMission: Getting the right modifier for a weapon can cost immense amounts of time and money, especially if said item is incredibly expensive to buy/sell. But that Unreal Megashark is so tempting...
* MySpeciesDothProtestTooMuch: If he's to be believed, most goblins are generally disagreeable, bumbling idiots. Not this guy; he's completely polite in his interactions with you and provides some useful tech. Naturally, he didn't really get along with the rest of his kind, and the reason you find him tied up in a cave is because the other goblins left him there.
* OurGoblinsAreDifferent: He's quite adept at technology, selling you the tinkerer's workshop, necessary to combine accesories, and also sells spike balls that can be used as traps.
* ShipTease: He's always asking about the mechanic.
* ShoutOut: His name is a reference to ''VideoGame/WarcraftIII'''s Goblin Tinker.
** "Hey, does your hat need a motor? [[Music/{{Motorhead}} I think I have a motor that would fit exactly in that hat]]."
** "[[http://knowyourmeme.com/memes/xzibit-yo-dawg Yo, I heard you like]] [[http://terraria.gamepedia.com/Rocket_boots rockets and]] [[http://terraria.gamepedia.com/Hermes_Boots running boots]], [[http://terraria.gamepedia.com/Spectre_Boots so I put some rockets in your running boots]]."
* SpikeBallsOfDoom: Throws Spiky Balls in self-defense against monsters.
* TokenHeroicOrc: The only goblin that isn't antagonistic.
* WillTheyOrWontThey: Toward the Mechanic.

[[folder:Witch Doctor]]
[[caption-width-right:350:The heart of magic is nature. The nature of hearts is magic.]]
The Witch Doctor moves in after defeating the Queen Bee. She/He sells the imbuing station and various tribal-themed accessories and items.
* AmbiguousGender: None of the NPC[=s=]' conversations mention his gender at all and his mask obscures his facial features. The only way one can find out on their own is to mess around with King and Queen Statues; these statues can be used to teleport random [=NPCs=] of the corresponding gender.
* BlowGun: His WeaponOfChoice.
* LizardFolk: [[WordOfGod Word of God]] has offhandedly said that the witch Doctor is a lihzahrd.[[labelnote: More info]] A quick comparison of the Lihzahrd and Witch doctor sprites makes it clear by way of several shared features; a tail, green skin, and head frills. The last is partially obscured by the witch doctors mask.[[/labelnote]]
* PungeonMaster: Several of his lines involve wordplay.
* TokenHeroicOrc: The only Lihzahrd in the game that doesn't attack you on sight.
* WitchDoctor: It's in the title, after all.

[[caption-width-right:350:Of course embroidery is hard! If it wasn't hard, no one would do it! That's what makes it great.]]
Formerly a slave of Skeletron who could be found wandering outside of the dungeon, he moves in once his master has been slain, selling clothes.
* BadPowersGoodPeople: From 1.3 onward, he will fend off invading monsters by launching magical skulls at them.
* BackFromTheDead: Summoning Skeletron undoubtably kills him, as the process of Skeletron emerging tears him apart from the inside out, but [[UnexplainedRecovery he appears later perfectly fine]] and with only very vague hints as to how he came back.
* DarkIsNotEvil: Going by his means of self-defense and the fact Skeletron bursts out of his corpse if you personally kill him at night, the Clothier still has ''some'' connection to Skeletron even without his curse. However, he's just another friendly NPC who never harms the player or the other [=NPCs=] on his own, and none the items he sells have any application in combat either.
* DemonicPossession: Considering he has RedEyesTakeWarning before he's set free as well as the fact that Skeletron bursts out of him, it's heavily implied that this is the case with him.
* EarnYourHappyEnding: He's extremely grateful towards the player for freeing him from Skeletron's control.
* LudicrousGibs: He violently explodes into Skeletron if you ask him about the curse if he hasn't been freed yet.
* OneWingedAngel: If it's night time and he hasn't been freed, talking to him and agreeing to fight Skeletron will result in the beast bloodily ripping itself out of him and tossing his dismembered body aside to fight you. He can also do this after he's been freed when you kill him with the clothier voodoo doll, although considering all he's been through [[VideoGameCrueltyPotential it makes the player]] [[KickTheDog look like more of a dick.]]
* ShoutOut: Nearly every line he says is a reference to a Creator/TomHanks movie.
* SpellBook: Uses the Book of Skulls to attack monsters. In hardmode, he begins using a special version that also inflicts the Shadowflame debuff on enemies.
* VideoGameCrueltyPotential: If you want to obtain his hat, you need to get him killed, and if you want to challenge Skeletron again you need to kill him yourself while you are equipped with his voodoo doll at night.
* VoodooDoll: Now dropped by Skeletons in the dungeon, in-case you aren't bothered to build an elaborate lava trap to get his hat. Killing him this way will summon Skeletron again if it's night.

[[caption-width-right:350:Oh, you know what this house needs? More blinking lights.]]
Like the goblin, she's also bound, and found in the dungeon. She sells wires and wiring tools.
* AllPeriodsArePMS: During the blood moon.
* BlindWithoutEm: If you talk to her shortly after rescuing her, she may mention that she's dropped her contact lens and is desperately looking for it.
* DistressedDamsel: While he was still cursed the Clothier tied her up and tossed her into the dungeon, and the player has to save her before she moves in.
* InterspeciesRomance: She's a human, and has a crush on the Goblin Tinkerer.
* ObliviousToLove: She doesn't understand the Arms Dealer's comments about "pushing her pressure plate". On the other hand, she appears to have a mutual crush on the Goblin Tinkerer.
* ShipTease: She's always asking about the goblin tinkerer.
* WillTheyOrWontThey: Towards the Tinkerer.
* WrenchWench: She even throws boomerang-like wrenches in self defense.

[[folder:Party Girl]]
[[caption-width-right:350:We have to talk. It's... it's about parties.]]
The party girl moves if you have at least 14 NPC[=s=] living in houses, with a 2.5% chance of doing so each day while the population remains at or above that number. She sells party supplies, including fireworks.
* AllPeriodsArePMS: She's the ''only'' female NPC that averts this during the Blood Moon.
* GenkiGirl: Just like the pony she's based off, most of the thoughts running through her mind are about fun and parties.
* ImprobableWeaponUser: Uses [[GrenadeSpam Happy Grenades]] in self-defense.
* JokeItem: All of her items have no real significance for actual combat or other tasks but just there to, well, party.
* LethalJokeItem: The Fireworks she sells in Hardmode can ''kill'' enemies and even bosses, and the Confetti she sells can be combined with empty casings from the Arms Dealer to make Confetti Ammunition, which is more powerful than all pre-Hard Mode ammunition.
** Fireworks are especially deadly when correctly HOIK'd and they all detonate in a single spot to generate the highest achievable DPS in the game.
* RoseHairedSweetie: She's cheerful and optimistic and loves parties, and she's the only female NPC who doesn't become rude or grouchy during a Blood Moon.
* ShoutOut: She is a ''very'' blatant shout out to [[{{WesternAnimation/MyLittlePonyFriendshipIsMagic}} Pinkie Pie]], she has blue eyes, dark pink hair, a love for parties, etc. Two of her possible names are Sparkle and Trixy.
* WhereTheHellIsSpringfield: According to her, the world of Terraria is somewhere on Earth - she mentions that she's been to Sweden.

[[caption-width-right:350:I make a rather enchanting hot chocolate if you'd be inter... No? Ok.]]
Once the world is in hardmode, he can appear underground, [[DistressedDude bound]]. He sells the materials to make a variety of magical weapons.
* AccidentalMisnaming: He frequently calls you by the names of other [=NPCs=] of your character's gender.
* MagicLibrarian: He sells tomes that are used to craft the Crystal Storm, Cursed Flames, and Golden Shower spellbooks.
* NiceGuy: He ''tries'' to be friendly to the player, but if a couple of his possible conversations are any indicator then they aren't exactly working.
* PlayingWithFire: Uses the Flower of Fire to fight.
* RobeAndWizardHat: He's a wizard who wears a purple robe and pointed hat.
* ShoutOut: "Someone once told me '[[WesternAnimation/MyLittlePonyFriendshipIsMagic friendship is magic]]'. [[TakeThat That's ridiculous]], you can't turn people into frogs with friendship!"

[[folder:Tax Collector]]
[[caption-width-right:350:You already managed to spend every pence I paid you!? Bah, I'm not a charity, go kill a slime!]]
The Tax Collector moves in after you sprinkle a Tortured Soul, found in the Underworld in Hardmode, with Purification Powder. Every in-game minute (a second in real time), he will collect 50 copper from each NPC that is living in a house up to a limit of 10 gold.
* AndIMustScream: He's trapped in the underworld until you decide to free him.
* CaneFu: Uses his Classy Cane to fight.
* HeelFaceTurn: He goes from a hostile monster down in the underworld to a recruit-able NPC if you have some purification powder handy.
* TheScrooge: He's based off of this, right down to the [[JerkAss personality.]]
* UngratefulBastard: He's created by purifying his [[AndIMustScream Tortured Soul]]. Anybody would think that would give him a more kinder demeanour in his new lease on life, but sadly, that is not the case.
** Then again, the taxes he collects go straight to you, so he's not ''entirely'' ungrateful. He also has a few lines where he isn't so sour about giving you his money.
** Because he's immediately changed into a new character when you purify him and only has his standard dialogue (same as he uses when he's in your town), he can't even acknowledge that you just saved him. (This is unlike other [=NPCs=] that you save such as the Mechanic and the Goblin Tinkerer, who do have appropriate lines for thanking you.)

[[caption-width-right:350:You haven't seen any pigs around here have you? My brother lost his leg to one.]]
The Truffle will only move into a house within a surface mushroom biome during hardmode and cannot be moved anywhere outside of it. He sells mushroom stuff.
* BladeOnAStick: He sells Mushroom Spears.
* DroneDeployer: Of a sort. He creates explosive spores that hover in the air when threatened.
* TheFriendNobodyLikes: He's at odds with everyone but the Dryad. The Clothier and the Witch Doctor have even gone as far as to try eating him.
* MushroomMan: All of his possible names are kinds of mushrooms or toadstools to boot, too. He'll also release spores as a means to attack enemies.
* ShoutOut: He doesn't know the "[[Film/TheGoonies Truffle Shuffle]]", so stop asking.
* WhatTheHellPlayer: He calls you out for "stealing his children."

[[caption-width-right:350:I'm no landlubber, but it's better to have lubbed and lost than never to have lubbed at all.]]
The pirate moves in after defeating the Pirate Invasion and sells cannons primarily, and some other things.
* CoolGun: A minigun with a cannon strapped to it. Extremely effective for self defense.
* DefeatEqualsFriendship: He looks and fights exactly like the Pirate Captain enemy, which may imply he elected to join the winning side after you trounced his invasion.
* PirateParrot: Which you can buy as a pet, but it requires him in the ocean and costs two platinum coins. The Cyborg also implies the Pirate has one of his own after exclaiming how corrosive its droppings are to him.
* TalkLikeAPirate: His manner of speaking.

[[caption-width-right:350:I like your... gear. Does it come in brass?]]
The Steampunker moves in if you have beaten at least one hardmode boss. She sells a variety of high-tech, SteamPunk gizmos.
* AllPeriodsArePMS: During a Blood Moon. Notably, she only has one Blood Moon-exclusive quote warning the player that she's feeling peevish; aside from that, her dialogue is the same as always.
* CoolGun: Wields a Clockwork Assault Rifle to defend herself.
* SkyPirates: She may mention that she's beginning to consider becoming one.
* SteamPunk: It's in her title, and she sells a lot of industrial-looking gadgets.
* WrenchWench: This girl is extremely tech savvy, building and selling some of the most high end machinery in the game like jetpacks and teleporters. She occasionally expresses curiosity about the workings of the Cyborg.

[[caption-width-right:350:Sometimes I come off a bit... Get it? A bit?]]
The cyborg will move in once you have defeated Plantera and collected a rocket launcher. He sells rockets.
* AmbidextrousSprite: Either his optical enhancement is more like goggles for both eyes or they can swap between eyes based on how the eye that's shown is always covered.
* ArmCannon: Uses one that can either fire Missiles or Proximity Mines to defend himself.
* {{Cyborg}}
* ExpoSpeakGag: "[[VideoGame/TheElderScrollsVSkyrim My expedition efficiency was critically reduced when a projectile impacted my locomotive actuator]]."
* GrenadeLauncher: Or a Proximity Mine Launcher to be exact.
* LogicBomb: Completely unaffected. In-fact, he makes a joke of it.
* StuffBlowingUp: Many of his items involve explosions, excluding the nanites.

[[folder:Santa Claus]]
[[caption-width-right:350:What? You thought I wasn't real?]]
He will only move in if 1: [[HolidayMode It's around December 15th to 31st]] and 2: If you summon, and defeat the Frost Legion. He sells a variety of Christmas-themed decorative items, including christmas trees and trimmings.
* AbnormalAmmo: He throws Christmas tree decorations at nearby enemies.
* AndYourRewardIsClothes: Oh, and some decorative items too for beating the Frost Legion.
* HolidayMode: Santa only appears during December 15th to 31st, promptly dying in the usual gory explosion as soon as the new year hits.

[[folder:Traveling Merchant]]
[[caption-width-right:350:Hmm, you look like you could use an Angel Statue! They slice, and dice, and make everything nice!]]
An NPC introduced in 1.2.3 that has a random chance of spawning every day once the player has at least two [=NPCs=] moved in and no other daytime events are occurring (goblin invasion, pirate invasion, eclipse). Unlike other [=NPCs=], he does not move into a home and instead wanders around near where your home is. He carries a random list of goods each time he appears.
* BadassCape: He can sell one of four possible vanity capes.
* BoozeBasedBuff: Sake sometimes shows up which grants the tipsy (de)buff for twice as long as ale.
* EnergyBow: After defeating Plantera, one of the possible items that can be purchased is the Pulse Bow. He also uses it to shoot down enemies.
* KatanasAreJustBetter: One of the possible items that can be bought. It's also one of the few pre-hardmode swords with autoswing and has a respectable attack range, so at least early on, they really are better.
* KillerYoYo: Has a random chance of selling One Drop's Code 1 yo-yo or the Code 2 when in hardmode, he can also sell two of the counterweights that the Skeleton Merchant does not.
* RevolversAreJustBetter: A possible item he can sell after a Shadow Orb or Crimson Heart has been smashed.
* TheGunslinger: Attacks enemies with his [[RevolversAreJustBetter Revolver]] when threatened pre-hardmode.
* NiceHat: Wears a blue hat with a feather in it, which he sometimes drops when killed.
* TheStraightAndArrowPath: When Hardmode comes along, he switches out his Revolver for a [[EnergyBow Pulse Bow]] to attack enemies with.

[[folder:Skeleton Merchant]]
[[caption-width-right:350:You would not believe some of the things people throw at me... Wanna buy some of it?]]
Introduced in 1.3, the Skeleton Merchant has a random chance of spawning underground. Like the Traveling Merchant, he will not move into a home and will wander around the caverns. He carries a list of goods dependent on current time and moonphase.
* BallisticBone: He throws bones at enemies when threatened.
* CruelAndUnusualDeath: One of his lines implies that he died by being caught by underground spiders, and they [[EatenAlive feasted on him until there was nothing left except bones]]. Oh, and [[AndIMustScream he remembers it completely]].
* DemBones: He's a skeleton, albeit a friendly one.
* GloveSlap: During a Hardmode Blood Moon, he carries a glove on a stick, while its damage and critical chance is mediocre at best, it has the single highest base knockback of any weapon beyond the [[{{BFS}} Breaker Blade]] and is great for repelling enemies not entirely immune to knockback.
* KillerYoYo: He can sell the various yo-yo Counterweights that send out a tiny, orbiting counterweight upon attacking an enemy and during Hardmode, he not only can sell two unique yo-yos but also the Yoyo Glove that allows the equivalent of DualWielding two of the same yo-yo at once.
* MetalSlime: A non-enemy version. He only spawns rarely in the Cavern layer, and unlike most other [=NPCs=], his presence is not shown by an announcement nor can he be detected by a Lifeform Analyzer. Furthermore, some of his items are only available at very specific times, meaning that you'll need to get very lucky at the right time to get, say, a Magic Lantern.
* NiceHat: Wears a large black hat.
* ShoutOut: Several of his names are shout outs to other skeleton or advertiser characters.

Critters spawn in certain environments and are completely harmless and all of them can be caught using the bug net sold by the Merchant and put into bottles or Terrariums. These include birds, cardinals, blue jays, ducks, mallards, bunnies, squirrels, fireflies, butterflies, goldfish, worms, grasshoppers, mice, snails, scorpions, black scorpions, penguins, frogs, lightning bugs, glowing snails and truffle worms. [[spoiler:The truffle worm is used for summoning Duke Fishron.]]
* AnimalisticAbomination: The Corrupted forms of penguins, goldfish, and bunnies. Considering that the Corruption has a reputation for spawning minor [[EldritchAbomination Eldritch Abominations]], this comes part and parcel. Their crimtane versions in Crimson worlds are even worse.
* BunniesForCuteness: Bunnies spawn at random and you can even catch one to put into a terrarium to keep. Although they become [[HairRaisingHare less cute]] during Blood Moons.
* EverythingsBetterWithPenguins: In the snow biome, unless it's a Blood Moon then you should run...
* GoldMakesEverythingShiny: 1.3 brought about gold versions of all critters, which are very rare and worth 10 gold coins each. If they're bait critters then they have 50% bait power.
* MetalSlime: Truffle worms, they burrow away the moment you get too close and spawn rarely. 1.3 introduces gold variants of various critters.
* NumberOfTheBeast: The Truffle Worm's bait power is 666%.
* OneHitPointWonder: Although they actually have 5 HP, they have zero defence and literally any attack will instantly kill them unless it was a weak starting weapon such as the Wooden Hammer.
* TailfinWalking: When it rains, goldfish shuffle about on land on their tails.

[[folder:In general]]
With the right equipment, Players can summon several different minions to aid them in combat. They are crucial to the Summoner class set up, and a small yet helpful addition to the others. All of them are summoned from magic staffs.
* AntiFrustrationFeatures: Zigzagged. If the player is separated from the minions and moves too far away from them, they will spawn/fly over to the players location. . . Most of the time. If the minions in question can't pass through walls and are still on screen, they won't be able to get beside the player unless they are re-summoned.
* ArbitraryHeadcountLimit: Without certain gear or buffs, a player can only have one minion active at a time. The highest cap is 11 on computer, and 9 on mobile and console versions. Some armor sets meant for summoning minions will grant an increase in minion damage rather than an increase in the minion cap.
* EvilCounterpart: Inverted. Most of the minions are loyal ally versions of enemies the players fight, and likely encounter first. On a more meta level, the Minions were not originally in the game when it first came out, and started being added in later updates.
* FriendlyFireproof: The Minions attacks cannot hurt the player, and the player's attacks cannot hurt the minions.
* GameplayAllyImmortality: None of the minions can take damage or die, but will de-spawn if dismissed, or the player dies.
* LeeroyJenkins: They will rush off to fight any enemies they can get to, regardless of wether or not the player is actually fighting them.
* LoyalAnimalCompanion: All of them are loyal minions for whomever summons them, though only a handful of them are actual animals.
* SummonMagic: All of the minions are summoned from magic staffs. The minions damage is based on the stats of the equipment used to summon them.
* YouAndWhatArmy: The achievement for having nine minions at once is called this.

[[folder:Baby slime]]
The easiest though time consuming minion to get, the baby slime is summoned from the Slime Staff, which is a RareRandomDrop from slimes. It is one of the three pre-hard mode minions.
* BlackBeadEyes: Has these.
* BlobMonster: A tiny slime.
* BlushStickers: Has these to make it look cuter and younger.
* DeathOfAThousandCuts: As the weakest minion, fighting just about anything stronger than a zombie goes like this.
* EvilCounterpart: Inverted. The first slimes encountered by players are enemies, while baby slimes are loyal to the player who summons them.
* InfantImmortality: Is a baby slime, that like other minions cannot die.
* RareRandomDrop: The Slime staff that summons it has the lowest drop rate of any item dropped by an enemy. In normal mode, The lowest drop rate is 1/10000 (0.01%), while it's "best" drop rate is marginally better, at 1/100 (1%), but the latter only applies to ''[[MetalSlime Pinky]]''. By the time a player obtains one, they probably have the means to get the Hornet staff, or even the Imp staff instead, making the Slime staff and the Baby slime by extension more of a BraggingRightsReward.
* RidiculouslyCuteCritter: Is tiny, with BlushStickers, beady little eyes,and a pacifier.

One of the three pre-hard mode minions. A hornet that is summoned from the Hornet Staff, which requires materials dropped by the Queen Bee to craft.
* BeeAfraid: Hornets actually, but close enough to fit when lots of them are summoned.
* BewareMyStingerTail: The hornets method of attack is firing poisonous stingers.
* BigCreepyCrawlies: Is a hornet almost as big as the PC.
* EvilCounterpart: Inverted. The first Hornets the players encounter are enemies, while the summoned ones are loyal to the player who summons them.
* LoyalAnimalCompanion: A large Hornet minion loyal to the player who summons it.
* StandardStatusEffect: It's stingers can inflict the "Poisoned" debuff on enemies.

The strongest, and last minion pre-hard mode. Summoned from an Imp Staff the player must craft from hellstone bars at an anvil.
* EvilCounterpart: Inverted. The first imps encountered by the players are enemies, while the summoned ones are loyal to the player who summons them.
* GoodWingsEvilWings: They have [[BatOutOfHell bat like]]/devil wings on their backs which they use to fly, but they only attack their summoners enemies.
* PlayingWithFire: Attacks enemies with fire balls.
* RealityEnsues: Water puts out their fireballs on contact.
* SecretAIMoves: Played with. Enemy Imps have the ability to teleport, but player summoned Imps lack this ability. Instead, player summoned Imps have wings and can fly, an ability enemy Imps lack.
* SequenceBreaking: Meant to be the last minion players get pre-hard mode, but since the staff is the only thing a Summoner player really needs from the Underworld pre-hard mode, they can use the Reaver Shark (a rare drop from fishing in the ocean) to collect only enough materials for the staff, go back to home base, and have an Imp be the ''first'' minion they get, rendering the Slime and Hornet Staffs obsolete.
* StandardStatusEffect: It's fireballs inflict the "On fire!" Debuff on enemies.
* UselessUsefulSpell: Is the best pre-hard mode minion- unless water is involved. Its [[PlayingWithFire fireballs]] are extinguished the moment they come in contact with water, making Imps useless for underwater combat.

The weakest Hardmode minions, but the easiest to obtain, Spiders are summoned from the Spider staff, which is crafted from 16 spider fangs at an iron/lead anvil and above.
* BigCreepyCrawlies: Spiders that are about as big as the player character's head.
* LoyalAnimalCompanion:Is a Spider that is loyal to the player who summons it.
* PaletteSwap: Has three possible sprites with minor differences.
* WallCrawl: Spiders can climb background walls.
* SpiderSwarm: Invoked if the player summons more than one.
* StandardStatusEffect: Inflicts the "Venom"[[note]]A stronger version of "Poisoned"[[/note]] debuff on enemies.
* ZergRush: Each spider only takes up 3/4 of a minion slot, allowing you to squeeze in more minions than with other summoning items.

Smaller versions of The Twins in their second form, called Spazmamini and Retinamini, respectively, are summoned from the Optic staff, which requires souls of sight obtained from defeating The Twins as one of the crafting materials.
* EyeBeams: Retinamini fires these.
* OneSteveLimit: Downplayed. To lessen confusion between these minions and The Twins, they are just referred to by the Optic staff as "Twins".[[labelnote:More]]On a meta level, many players change the upper case T to a lower case t when referring to the minions.[[/labelnote]]
* ShortRangeGuyLongRangeGuy: Like The Twins. Retinamini fires Eyebeams, while Spazmamini charges enemies.
* ZergRush: Both do 30 base damage (only 4 more than a Spider), but each pair of Retinamini and Spazmamini count as ''one'' minion, meaning that a fully geared and buffed player can have ''18 or 22 at once'', depending on what version they are playing.

Small Pirate minions summoned by the Pirate staff, a RareRandomDrop from enemies in the Pirate Invasion event.
* DressedToPlunder: There are three different sprites for the Pirates:
** One has an EyepatchOfPower.
** One has a [[NiceHat Pirate captains hat]].
** One has a BadassBeard, although it's a bit hard to tell due to the Pirates size.
* PaletteSwap: Has three possible sprites with minor differences.
* {{Pirate}}: Tiny pirates.
* PirateParrot: If they are too far away from the player, a Parrot will carry the Pirate to them.
* ShoutOut: To PixelPiracy, a game Re-Logic published.
* ToiletHumor: Occasionally the Pirates will poop. This has no functional purpose.

Pygmy minions that are summoned from the Pygmy Staff, which is one of the items Plantera might drop upon defeat.
* BladeOnAStick: They fight with throwing spears.
* GuideDangIt: The Pygmy Staff must be in the players inventory when talking with the Witch Doctor in order to buy the Tiki armor, Pygmy Necklace, and Hercules beetle.
* PaletteSwap: Has four possible sprites with minor differences, mainly the colours on their faces. They are: Blue, red, yellow/orange, and purple.
* ShoutOut: The four different Pygmy sprites have colours on their faces that match up with the masks worn by the [[Franchise/TeenageMutantNinjaTurtles Ninja Turtles.]]

A small flying saucer minion summoned by the Xeno Staff, which is one of the possible drops from the Martian Saucer during the Martian Madness event. It is currently only in the desktop version.
* FlyingSaucer: Is a small one.
* FrickinLaserBeams: The UFO fires laser beams at enemies.

Ravens that are summoned from the Raven Staff, a rare drop from the Pumpking during the Pumpkin moon event.
* CreepyCrows: Dark purple Ravens with orange eyes.
* LoyalAnimalCompanion: A Raven minion that is loyal to the player who summons it.
* PurpleIsTheNewBlack: The Ravens are a dark shade of purple.

Sharknados(small tornados that fire sharks) summoned from the Tempest Staff dropped by Duke Fishron.
* VictorGainsLosersPowers: Are the same type of sharknados summoned by Duke Fishron.
* ShoutOut: To ''Film/{{Sharknado}}''.

[[folder:Deadly sphere]]
A minion summoned with the Deadly Sphere Staff which is a rare drop from Deadly Spheres during the Solar Eclipse event. It is currently exclusive to the Desktop version.
* PaletteSwap: After it attacks three times, its sprite changes, to one of four sprites, two of which are the exact same except for the colours on their protrusions.
* ShoutOut: To the 1979 film Phantasm, and one of the possible sprites for it looks a lot like a [[Franchise/StarWars Tie fighter]]on its side.

[[folder:Stardust dragon]]
[[caption-width-right:350:''"Who needs a horde of minions when you have a giant dragon?"'']]

A dragon summoned from the Stardust Dragon Staff, which is crafted from 18 Stardust fragments. Instead of summoning more dragons, each use of the Stardust Dragon Staff will increase its length and damage. It is currently exclusive to the Desktop version.
* AwesomeButImpractical: Due to how the hit detection works any target the dragon is currently attacking is nearly immune to all other forms of damage, this includes most bosses. If you are solo and not planning on fighting at all yourself then it is by far the strongest minion, but if you have teammates or are attacking with other weapons the dragon will completely invalidate most of the other hits. This makes the Cells more suited to summoners who have other forms of damage output.
* EvilCounterpart: Inverted. The Stardust Dragon operates like a player friendly version of a [[BossInMookClothing Wyvern]].
* EnergyBeing: It's less of a Dragon and more of a Dragon-shaped mass of eldritch energy.
* InfinityMinusOneSword /InfinityPlusOneSword: A single summon Stardust Dragon has a base attack of 40 while the Stardust Cell does 60. So, a single Stardust Dragon at maximum length ''is'' the strongest minion, while a one summon Stardust Dragon is the second best individual minion[[note]]While the Sharknado and Deadly Sphere are technically stronger with a base attack of 50, neither can attack through solid blocks, limiting the number of enemies they can attack[[/note]].
* LightningBruiser: When it's on the attack, it moves ''faster than the player''.
* OneManArmy: Invoked. The Stardust Dragon at full power tears enemies, both mooks and bosses alike, to ''shreds''.
* OurDragonsAreDifferent: Has no legs, no wings, attacks enemies by flying through them instead of using some kind of BreathWeapon, is blue and yellow, and looks more like a flying [[SeaMonster sea serpent]].
* PowerFloats: How it flies, gliding effortlessly around.
* PowerGlows: As it moves, it leaves behind a small trail of blue sparkles that provide some temporary light.
* RammingAlwaysWorks: Despite being a dragon, it has more in common with the Wyvern than Betsy, as it will instead charge and ram into and through it's targets. Although it doesn't make it any less lethal.

[[folder:Stardust Cell]]
-->''"Cultivate the most beautiful cellular infection"''
A minion summoned with the Stardust Cell Staff, crafted from 18 Stardust Fragments. It is currently exclusive to the Desktop version.
* BoringButPractical: The Cells are just balls of light that float around and shoot smaller balls of light at things. However, their ranged attacks are very fast and track targets, they teleport into attack range instantly, and their attacks cause a very powerful DoT effect. They might not look like much compared to the Dragon, but are easily it's equal.
* DamageOverTime: The Stardust Cell fires "mini cells" that latch onto enemies and damage them for 30 "ticks".
* FlashStep: Will do this to get closer to enemies out of range.
* HomingProjectile: Its mini cells.
* InfinityMinusOneSword /InfinityPlusOneSword: Is the strongest individual minion due to its base damage of 60, while the Stardust Dragon has a base damage of 40, but will increase in attack power and length with each use of the Stardust Dragon Staff making it stronger than the Stardust Cell. Unlike the Stardust Dragon, multiple Stardust Cells can be summoned.
* PowerFloats: Stardust Cells float around.
* TeleFrag: They teleport on top of any target that is out of their immediate range which causes impact damage. This can easily kill most non-boss targets instantly. They occasionally use this ability rapid fire provided each target dies on contact.


[[folder:King Slime]]
[[caption-width-right:177: "The lord of all things slimy."]]
King Slime is a [[CaptainObvious Giant Slime with a crown]]. It is a side boss that can be fought at any time but doesn't count for progression of the first act of Pre-Hardmode.
* AndYourRewardIsClothes: You beat it? Enjoy your random part(s) of the ninja costume and possibly the boss mask. Not so bad since 1.2.4 as it now drops the Slime Hook, the Slime Gun and a Slimy Saddle that you can get a Slime mount. Then 1.3 improves the drops even more by making the Ninja costume into functional armor that improves Throwing weapons.
* AsteroidsMonster: It will eschew normal slimes from itself as it takes damage.
* CoolCrown: Now wears one after the 1.3 update, making it look very similar to King Slime from ''VideoGame/DragonQuest''.
* FlunkyBoss: Spawns blue slimes as it takes damage. On Expert, it can also spawn ''spiked'' blue slimes.
* KingMook: Basically a bigger, stronger version of the blue Slime. After the 1.3 update he even has a crown, and also appears as the boss of a Slime Rain.
* ShoutOut: To ''VideoGame/NinjaGaiden'' with the ninja floating inside it, being a reference to a boss of the same one you fight.
* ShowsDamage: It gets smaller as its health gets lower. Justified as it starts losing mass as it takes damage, as shown by the blue slimes it releases when taking enough damage.
* SkippableBoss: It's entirely possible to never fight this boss. The triggering events are avoidable and it isn't tied to game progression.
* SpikeShooter: Not King Slime itself, but the Spiked Blue Slimes it spawns on Expert can fire spikes at the player.
* {{Teleportation}}: Will now dissolve and reform on the player if it happens to get stuck or manages to escape it for a while, so it cannot be trapped or outran anymore.
* TimeLimitBoss: One of the ''very'' few bosses in the game that [[AvertedTrope doesn't]] do this.

[[folder:The Eye of Cthulhu]]
[[caption-width-right:134: "You feel an evil presence watching you..."]]
[[Franchise/CthulhuMythos Cthulhu's]] [[ExactlyWhatItSaysOnTheTin disembodied eyeball]]. It's very likely to be the first boss fought, unless players set sight on the weaker King Slime first.
* TheBerserker: Adopts this strategy as it's Expert Mode-exclusive DesperationAttack.
* EarlyBirdBoss: After the player has satisfied a few relatively easy-to-meet conditions, the Eye of Cthulhu may simply decide to show up one night and start attacking, even if it hasn't been summoned. While it's still within reason to defeat it, it's also just as likely that the player lacks the equipment or skill necessary to fend it off.
* EldritchAbomination: Well, at least the eye of one.
* FinalBossPreview: [[spoiler:For both Ocram, which shares its attack pattern, and the Moon Lord, who spawns True Eyes of Cthulhu.]]
* FlunkyBoss: For the first phase, it shoots weaker and smaller Demon Eyes called Servants of Cthulhu at you.
* GiantEyeOfDoom: The first major Lovecraftian horror most players with find themselves against, and once it loses enough health it ditches its iris for a horrifying and toothy mouth. With its speedy charge, it can easily outmatch an unprepared player.
* GuestFighter: Also appears as a boss in [[VideoGame/DungeonDefenders Dungeon Defenders 2]] as part of its crossover with Terraria.
* KingMook: A bigger, badder version of the common Demon Eye enemy.
* TimeLimitBoss: It will run away if you do not defeat it by dawn.
* TurnsRed: Once at half health, it spins in a circle, releasing a small swarm of Demon Eyes and gaining a giant mouth where its iris was. In this state, it no longer shoots Demon Eyes but charges more aggressively. The 1.3 Big Update adds a new attack to the Eye's arsenal in Expert Mode, granting it a powerful and even faster berserker charge that it uses in proportion to how much damage it's taken.
* WarmUpBoss: Eye of Cthulhu is the first progression-related boss in the game, and has relatively low health and a predictable pattern. As such, it serves to introduce the player to bosses in the game.
* WakeUpCallBoss: For those who faced the King Slime earlier than anticipated.
** It also serves this role in Expert Mode, demonstrating that bosses have become ''much'' stronger than they were in normal mode. Its movement is upgraded to nearly match The Twins' ability to track the player's position, it releases a large swarm of lesser eyes transitioning into its second phase, and the new DesperationAttack it uses makes it extremely difficult for early-game characters to both hit and dodge the Eye of Cthulhu when it's on its last legs.

[[folder:The Eater of Worlds]]
[[caption-width-right:304: "Screams echo around you..."]]
A [[KingMook giant-sized Devourer]]. It typically takes the Brain of Cthulhu's place as the second major boss in worlds afflicted with the Corruption.
* AsteroidsMonster: If you destroy a segment that would leave two intact segments ahead or behind it, the detached segments will become a separate worm that must also be destroyed. At a bare minimum, you have to kill at least half of the Eater of Worlds to kill it permanently.
* EldritchAbomination: A gigantic mutant worm with eyes all around it's body that heralds from the Corruption.
* KingMook: To the Eaters of Souls and Devourers in the Corruption.
* SandWorm: Well, Corruption Worm. Plays this straight if summoned in a Corrupted desert.
* SuperSpit: The Expert Mode version of the Eater of Worlds possesses the ability to shoot Vile Spit like a Corruptor on LSD.
* SegmentedSerpent: Each of its segments is its own entity with its own health bar, and are capable of acting as independent worms so long as two segments are connected.
* SkippableBoss: If you can fish up the Reaver Shark, you can skip the Eater of Worlds. It'll be a bit harder to mine Hellstone with inferior armor, but not insurmountable (unless you farm Eater of Souls instead for the Ancient variety of Shadow Armor).

[[folder:Brain of Cthulhu]]
[[caption-width-right:215: "A horrible chill goes down your spine..." ]]
[[Franchise/CthulhuMythos Cthulhu's]] [[ExactlyWhatItSaysOnTheTin brain]]. It typically takes the Eater of World's place as the second major boss in worlds afflicted with the Crimson.
* BizarreAlienBiology: It has a ''heart'' inside of it. [[EyesDoNotBelongThere With an eye on it.]]
* BrainMonster: A giant, monstrous brain which attacks you in the Crimson should you smash too many Crimson hearts or use a bloody spine to summon it.
* DoppelgangerSpin: On Expert, during the second half of the fight. Each time it teleports, it produces three translucent, harmless fake images of itself that also converge on you. As its health gets lower, these images become less transparent, making it harder to distinguish the real one.
* EldritchAbomination: Again, at least the brain of one.
* FlunkyBoss: Much like the Eye of Cthulhu, it summons eyeball-like minions to attack you. Unlike the Eye of Cthulhu, these ''must'' be destroyed if you want to hurt the Brain itself.
* SkippableBoss: If you can fish up the Reaver Shark, you can skip the Brain of Cthulhu. It'll be certainly a bit harder to mine Hellstone with inferior armor, but not insurmountable.
* StandardStatusEffects: On Expert, any CollisionDamage with the eyeballs or the Brain can cause the Confused, Poison, Bleeding, Darkness, Broken Armor, or Weak status effects.
* SuspiciouslySimilarSubstitute: Due to being a floating brain-like enemy that attacks you with eyeball-like minions, the Brain of Cthulhu is possibly the closest thing the PC version has to Ocram.
* TeleportSpam: In the second half of the fight.
* WeaponizedTeleportation: The Brain's main attack is to teleport right on top of the player. To compensate for this, it's also the only boss that is susceptible to knockback.

[[folder:Queen Bee]]
[[caption-width-right:173: "The matriarch of jungle hives..."]]
A giant queen bee. Her larvae spawn inside bee hives and can be fought if broken. She's a sideboss and can be fought at any time although again like the King Slime, she doesn't count towards progression of Pre-Hardmode.
* BeeAfraid: You stumble into a hive, with not many monsters inside unless you start digging into the walls. Then you attack the larva... and a gigantic bee attacks you furiously in retaliation.
* BeeBeeGun: Can send out smaller bees to attack you.
* BewareMyStingerTail: Like the Hornets, she can fire out venomous stingers that poison the player.
* BigCreepyCrawlies: The largest insectoid enemy in the game[[note]]Destroyer doesn't count as it's a worm[[/note]].
* BerserkButton: Killing the Bee Larva in any of the bee hives will summon her.
* BossArenaRecovery: Due to how the Queen Bee is summoned, you'll probably be fighting her inside a beehive, the bottom of which is lined with honey that you can take a dip in to recover health over time.
* FlunkyBoss: One of her attacks is to release a swarm of tiny bees that follow you relentlessly.
* GlassCannon: The bees she spawns have very little health, but they pack quite a wallop.
* KingMook: A ''Queen'' Mook towards the Hornet enemies.
* MamaBear: Kill her larva and she'll awaken and attack you in retaliation.
* RammingAlwaysWorks: One of her attacks. She's able to fire out bees and stingers, but will also charge the player.
* SkippableBoss: Like the King Slime, there's no particular need to fight the Queen Bee unless you want her loot.
* SpamAttack: In Expert, her attacks get faster she nears death. This can lead to her chaining up charge attacks, or releasing swarms of bees followed by machine gun-like stinger barrages.
* StandardStatusEffects: Can poison you with her stingers.
* TimeLimitBoss: Averted.
* TurnsRed: Only on Expert. Her attack pattern gets faster and more frequent as she loses health. In addition, her defense gradually increases as she takes damage on Expert, culminating in more than double her defense at critical health.

[[caption-width-right:100: "The cursed guardian of the dungeon..."]]
A giant floating skull and arms that is summoned by talking to the old man at the entrance of a dungeon at night.
* CognizantLimbs: Both his hands. It's recommended to destroy them first, as they are his main means of attack. It's almost required to kill them first in Expert, because his head will have 100 defense until you do.
* CycleOfHurting: On Expert, his spinning move upgrades once both arms are destroyed, becoming faster so he can stick to your character for continuous, huge CollisionDamage.
* DemBones: It's a floating skull with disembodied skeletal arms.
* DungeonBypass: Very strongly averted. Try to tunnel past Skeletron and you'll be killed by the Dungeon Guardian, a NighInvulnerable BeefGate meant to punish such an attempted bypass. Even if you decide not to enter the dungeon at all, he is still required to be defeated if you want the cultists to appear and trigger the Lunar Events.
* EverythingsBetterWithSpinning: For the player, anyway. His defense drops when his head is spinning.
* HomingProjectile: In Expert, he fires homing skulls a la the Book of Skulls once you've destroyed one of his hands.
* NameTron: It's named Skeletron, although it's not a robot or machine at all.
* TimeLimitBoss: It will ''kill you'' if you do not defeat it by dawn.
* TurnsRed: At dawn, it transforms into the [[BeefGate Dungeon Guardian]] and will OneHitKill you. In Expert, once his hands are destroyed, he begins firing skulls at the player while also upgrading his spinning attack to perform a CycleOfHurting.

[[folder:Dungeon Guardian]]
A special version of Skeletron meant to keep you out of the dungeon until you've defeated Skeletron proper, introduced to fix a loophole in which the Skeletron Heads that once held its role in earlier versions could accidentally grant access to the dungeon if killed. Delving too deep (below 0 depth, specifically) will summon this nigh-invincible horror, and thusly, [[OneHitKill your doom]].
* BeefGate: It's intended to keep you out of the dungeon until you've earned it by defeating Skeletron. If you descend below 0 depth, it spawns. Unlike most Beef Gates, however, this one will keep spawning if you try to enter the dungeon, no matter how many times you kill it.
* BraggingRightsReward: The [[http://terraria.gamepedia.com/Bone_Key Bone Key]] it drops when killed, which summons a mini-Skeletron pet.
* DemBones: A flying skull.
* DoppelgangerAttack: The game treats it as a normal enemy, not a boss, so it is possible for more than one to spawn. It's not uncommon for two to chase you out of the dungeon. Death is pretty much assured when this happens.
* EverythingsBetterWithSpinning: Constantly in this state.
* ImplacableMan: It can phase through structures and the ground so walling it up is a no-go, it will chase you across the map and won't stop coming until either it despawns (which barring an endgame mount fast enough to outpace the creature would require an absolute ''miracle''), it hunts down and kills you, or you manage to kill it. It's immune to knockback and will shrug off everything up to and including the most powerful weapons in the game without slowing down one bit. Your only advantage over it in the end is agility.
* TheJuggernaut: Doesn't stop homing in on you, takes ScratchDamage from everything, {{One Hit Kill}}s you, and is practically invulnerable to {{knockback}}.
* LightningBruiser: It can fly faster than anything short of the best mount in the game, and can OneHitKill an endgame melee tank build on contact.
* MarathonBoss: You have to run away from it dealing ScratchDamage until its health depletes, which can take quite a long time. The absolute fastest you can kill the Guardian is in about five minutes, with the right equipment, and that's on Normal mode.
* NighInvulnerable: It has [[DamageSpongeBoss 9999 HP]] (which is doubled in Expert Mode) and [[MadeOfIron 9999 Defense]] (turning all attacks into ScratchDamage), and is ImmuneToFlinching. It can be killed, but only with a ''lot'' of preparation.
* OneHitKill: Its sole purpose of existence. With an attack that deals 1000 damage, if it catches you, you're dead.
* PermanentlyMissableContent: Vanishes once Skeletron is defeated, so get your Bone Key before you open the dungeon.
* RammingAlwaysWorks: It will crash into you at high speed and make you explode into gibs on impact.
* RasputinianDeath: Pretty much required to kill it. In fact, it's likely that the reason why it blinks out of existence when it finally kicks the bucket is because in the process of killing it you have to ''[[TheresNoKillLikeOverkill grind up the creature until nothing remains]]''.
* SelfImposedChallenge: Killing it is considered a personal achievement by ''Terraria'' veterans. The devs have acknowledged this, and it now drops the aforementioned Bone Key as a reward.

[[folder:Wall of Flesh]]
[[caption-width-right:123: "The master and core of the world..."]]

The final Pre-Hardmode boss, the Wall of Flesh is summoned by tossing a guide voodoo doll into lava in the underworld.
* AdvancingBossOfDoom: It will charge at you and pursue you from one end of the world to another, there is no way to get past it, and if it is still alive by the time it is on the other end, it will crush you to death.
* BeefGate: The Wall of Flesh will easily kill the under-prepared, to prevent them from unleashing hardmode prematurely.
* DiscOneFinalBoss: The most powerful pre-hardmode boss you face before you go into hardmode.
* EyeBeams: It fires volleys of purple lasers at you from its eyes, and the time between shots decreases as its health gets lower until it's full-on BeamSpam.
* EldritchAbomination: Moreso than the other pre-hardmode bosses because it can inflict a MindRape on you that forces you to kill it to survive. According to a card, it's the lord of eternal nightmares.
* FlunkyBoss: This game loves these bosses a lot. The Wall of Flesh has a number of flunkies called The Hungry attacked to it which reach out to damage you before detaching and flying at you upon death. It can also summon burrowing Leeches.
* GoForTheEye: While both its mouth and eyes are vulnerable, the eyes have zero defence and thus do not benefit from any DamageReduction, making them the preferred targets.
* ImmuneToFlinching: [[SubvertedTrope Surprisingly, no]], despite being an AdvancingBossOfDoom. Shooting Heart Arrows at its mouth will actually stun it for a brief while.
* LivingStructureMonster: The Wall of Flesh is ExactlyWhatItSaysOnTheTin -- a massive, moving wall of meat with eyes and a mouth.
* LoadBearingBoss: Its death infects the world with large swathes of ever-expanding Hallow and Corruption.
* MarathonBoss: Clocks in at 8000 HP in normal mode, which is considerably higher than any other easymode boss. Even top-tier easymode weapons will take a while whittling this guy down.
* NintendoHard: Either you're over-prepared or you die. There is no middle ground.
* TimeLimitBoss: You have to defeat it before it reaches the other side of the world and kills you.
* TurnsRed: As you wear down its health, it will start gaining speed, belch up leeches more often and will shoot its EyeBeams more often. On Expert, he gains a '''massive''' burst of speed when at critical health.
* YouWillNotEvadeMe: The wall will use its tongue to reel you in if you run to far from it, get behind it or try to escape the underworld conventionally. Trying to use the magic mirror to escape splatters you when you reach your spawn. This isn't as bad as it sounds for soft-core or even medium-core characters as your money/items drop at the spawn/bed that you warped to. [[{{FinalDeath}} Hard-core]] however...[[https://www.youtube.com/watch?v=nJjQueAsHO4&app=desktop this happens]].

[[folder:The Twins]]
[[caption-width-right:171: "[[TagTeamTwins This is]] [[OhCrap going to be]] [[ThisIsGonnaSuck a terrible night...]]"]]
A mechanical version of the Eye of Cthulhu, [[DualBoss except there are two of them]], [[EyeBeams Retinazer]] and [[KillItWithFire Spazmatism]].
* BreathWeapon: Spazmatism will spew a constant stream of Cursed Flames in its second phase, though at least the range is limited.
* BeamSpam: The lower Retinazer's health is in the second phase, the more it does so. At critical health it can fire as fast as a Megashark.
* DegradedBoss: In a rare beneficial version! Players can craft an staff that lets them summon miniature stage two Twins to aid them in battle and they keep their signature breath and laser attacks. A properly geared player can have a pack of ''22'' of these things trailing behind them.
* DualBoss: The only one in the game.
* EyeBeams: Retinazer, Retinazer, Retinazer. It gets worse the lowers its health gets.
* GiantEyeOfDoom: Two of them this time.
* {{Hellfire}}: Used by Spazmatism.
* MechanicalAbomination: The mechanical reincarnation of the Eye Of Cthulhu.
* RoboticReveal: Unlike the other mechanical bosses, these two appear to be biological until they [[TurnsRed enter their second phases]].
* ShortRangeGuyLongRangeGuy: Apparent in their second forms--Spazmatism is the Short Range, attempting to stay close to breathe cursed flames and charge the player, while Retinazer is the Long Range, attempting to stay far while firing lasers at the player.
* TechnicolorEyes: Retinazer's iris is red, and Spazmatism's is green, appropriate for the latter since it spews green fire. Both have blue pupils.
* TimeLimitBoss: The two will run away at dawn.
* TurnsRed: Like the Eye of Cthulhu, the Twins will enter a second form when low enough on health.
** Spazmatism's charges become much faster and more frequent, and while it's not charging, it relentlessly pursues the player while breathing a constant stream of Cursed Flames.
** Retinazer switches from blue lasers to more damaging red lasers, and the lower its health gets during its second phase, the faster it fires the laser cannon, until it's essentially BeamSpam.

[[folder:The Destroyer]]
[[caption-width-right:312: "You feel vibrations from deep below..."]]
A mechanical version of the Eater of Worlds.
* AnimalMecha: A giant metal worm.
* AttackDrone: Sends these out.
* BeamSpam: Both its sections and probes can do this from time to time.
* BossArenaRecovery: Destroying the probes it sends out will get at least one heart and/or a mana star if you've been using magic weapons.
* CompositeCharacter: While it's mostly based on the Eater of Worlds, the eyeball-like Probes it sends out resemble the Brain of Cthulhu's Creeper minions.
* DamageSpongeBoss: Has more HP than any other non-composite entity opponent in the entire game, but since all of its segments are individual targets vulnerable to attack, piercing and melee weapons will rack up massive amounts of damage by striking multiple segments on each pass, balancing out the extra health.
* FlunkyBoss: The probes it sends out upon being hurt.
* FrickinLaserBeams: The aformentioned probes will start letting out a barrage of lasers should they be allowed to survive for a bit.
* MechanicalAbomination: The mechanised reincarnation of the Eater of Worlds.
* SegmentedSerpent: Good christ, with hundreds of segments this thing is ''massive''. The player can attack multiple segments at one go, allowing them to deplete its massive HP faster. If someone has already defeated The Twins and has used their souls of sight to build a Magical Harp[[note]]fires slow, infinitely piercing projectiles rapidly as long as your mana meter holds out[[/note]] weapon, the boss fight becomes nearly effortless.
* TimeLimitBoss: Runs away at dawn.

[[folder:Skeletron Prime]]
The mechanical version of [[CaptainObvious Skeletron]].
* ChainsawGood: The Prime Saw arm.
* CognizantLimbs: Has four destructible limbs, each carrying a deadly weapon of its own.
* CripplingOverspecialization: The Prime Cannon arm fires bombs which explode on contact with solid platforms. This means that a floating arena of wooden platforms makes the arm utterly incapable of causing anything other than CollisionDamage.
* DemBones: Mechanical ones this time.
* EverythingsBetterWithSpinning: Unlike Skeletron, Prime benefits from spinning as its defense actually ''increases'' instead of decreasing when it does so.
* FrickinLaserBeams: The Prime Laser arm.
* JetPack: While the head floats, Skeletron Prime's arms seem to move using jets of (harmless) flame.
* MarathonBoss: With its four arms and high HP, Prime can easily drag the fight out [[TimeLimitBoss until morning]] if the player's damage output is too low, and unlike the Destroyer, it isn't made up of hundreds of segments that can all be targeted.
* MultiArmedAndDangerous: Has four arms as compared to Skeletron's two, and each arm has a different weapon to murder you with on each end.
* NameTron: It's named Skeletron Prime. Unlike Skeletron, this one ''is'' mechanical.
* PowerPincers: The Prime Vice arm.
* SkeleBot9000: It's a mechanical skull with four arms.
* SpikesOfDoom: The head grows these when spinning.
* ThrowDownTheBomblet: The Prime Cannon arm.
* TimeLimitBoss: Like Skeletron, Prime has a Dungeon Guardian form and will kill you at dawn.


The true final boss of the console version, Ocram can best be described as a flying ''Film/{{Predator}}'' head.
* BeamSpam: Its first form loves this. Its second form basically pumps out laser shotgun blasts at the speed of a machinegun.
* BulletHell: During his second phase, he will be spraying countless laser blasts and Demon Scythes at a ridiculous speed. Not only does it do this itself, but this is also the focus of most strategies for fighting him.
* CallBack: Oddly enough, to the Eye of Cthulhu. His strategy is similar, his flunkies are called "Servants of Ocram" like the Eye's "Servants of Cthulhu", and they share a battle theme.
* EldritchAbomination: Quite. His appearance is extremely otherworldly even in comparison to the likes of the Celestial Pillars and the [[spoiler:Moon Lord.]]
* FinalBoss: Confirmed to be as such by the (console version's) [[WordOfGod developers.]]
* FlunkyBoss: Sends out Servants of Ocram, though he has plenty of other attacks. They're fairly easy to kill if you use Crystal Bullets. However, don't mistake him for relying solely upon them.
* GiantSpaceFleaFromNowhere: Has no buildup or references, not even in the item used to summon him. He's also the only non-robotic Hardmode boss.
* LightningBruiser: He moves fast and hits HARD.
* NintendoHard: He's pretty much impossible to kill without near-endgame to endgame armor.
* OmnicidalManiac: If you summon it too close to your house/town, it can and will kill your [=NPCs=].
* SdrawkcabName: "Ocram" is "Marco" backward, the name of Ocram's programmer.
* TurnsRed: His second form turns out his eyes, reveals a bigger eye, and also amps up the power of his BeamSpam attack while allowing him to launch Blinding Demon Scythes.

After defeating the three Mechanical Bosses, strange pink bulbs will begin gradually growing throughout the Underground Jungle. Breaking one will awaken the giant plant-like monster, Plantera.
* AutobotsRockOut: Unlike every other boss, Plantera's theme is a heavy guitar-laden piece. It also doubles as a BossRemix of the Jungle theme!
* CombatTentacles: Its invulnerable grappling hooks can deal damage, and it sprouts a bunch of smaller, destructible ones when it TurnsRed. In Expert Mode, its grappling hooks sprout them too when it TurnsRed!
* BerserkButton: If you lure it out of the Underground Jungle biome, it will become more aggressive and damaging.
* FlunkyBoss: The plants that it sprouts when it TurnsRed.
* HomingProjectile: Its second form launches Spores that will seek out and damage the nearest player.
* ImpossibleItemDrop: Plantera is a particularly strange case. Whereas most bosses can also drop some sort of item or weapon, most of them are somehow based on the abilities of the boss itself (e.g. the Book of Skulls fires the same skulls that Skeletron does in Expert Mode)... but what is Plantera doing with an ''electric guitar''?[[note]]Granted, it's likely another nod to the band, Pantera.[[/note]]
* ManEatingPlant: Even more so than the Man Eaters you used to encounter in the jungle.
* {{Pun}}: Of the band ''Music/{{Pantera}}'', especially so because of its unique boss theme.
* RushBoss: Plantera's HP isn't too impressive compared to the mechanical bosses, who all have higher aggregate HP than it. However, what it lacks in durability it makes up for with heavy-hitting, hard-to-dodge attacks, especially since you're going to be fighting it in the cramped Underground Jungle ''[[BerserkButton or else]]''.
* SpikeBallsOfDoom: Spits these out in its first phase.
* SpikeShooter: First phase uses these. The rate of its fire increases as it loses health.
* TurnsRed: At half health, the flower will drop off and sprout tentacle plants, and it'll become much faster and damaging.
* WakeUpCallBoss: Plantera is ''significantly'' harder than the Mechanical Bosses, and a large amount of preparation is needed to even stand a chance of killing it, especially since its bulb appears at complete random. Trying to lure it to a previously-crafted arena outside of the Underground Jungle is also a bad idea, discouraging the use of just building an ideal arena for battle.

[[caption-width-right:216:"The stone-faced ritualistic idol of the lihzahrdian tribe..."]]
A giant animated statue. Summoned by using a Lihzarhd Power Cell on an altar found inside the jungle temple.
* CognizantLimbs: His arms can be attacked and destroyed separately, though this isn't necessary to beat him.
* EyeBeams: The first phase uses these when its health gets low. The head in the second phase also uses them.
* {{Fireballs}}: Spits out bouncing ones.
* FrickinLaserBeams: The EyeBeams it fires are slower than light.
* {{Golem}}: It's a construct created by the Lihzarhd.
* HyperDestructiveBouncingBall: The fireballs the head shoots out.
* LosingYourHead: When he TurnsRed. Justified because he's a construct.
* OutsideTheBoxTactic: Tne Golem is one of two bosses unable to pass through solid blocks, allowing a player to trap him inside and attack him from there with a wall-piercing weapon.
* PowerOfTheSun: Many of the Golem's drops are associated with daytime and the sun.
* RocketPunch: His arms. The Golem Fist he drops allows the player to do the same.
* TurnsRed: Its head flies into the air and becomes invincible when its health is depleted, forcing you to attack its body directly.

[[folder:Duke Fishron]]
[[caption-width-right:194:"The mutant terror of the sea"]]
A giant fish-pig-dragon hybrid summoned by using a Truffle Worm as fish bait in the ocean.
* AscendedMeme: Was originally supposed to be the boss of an AprilFoolsDay joke, the Tidal Moon event. While the event isn't real, Duke Fishron is.
* BerserkButton: If you lure him out of the Ocean biome, he will become more aggressive and damaging.
* BonusBoss: He's the only Hardmode boss that doesn't need to be beaten in order to fight [[spoiler: the Moon Lord]], and you need to go somewhat out of your way in order to summon him.
* BubbleGun: Spits homing bubbles at the player.
* ByTheLightsOfTheirEyes: His Expert Mode ability shrouds the entire area in fog while he turns invisible, and his glowing eyes is one way to detect him before he charges.
* DesperationAttack: He gains one when he's at very low health on Expert Mode. It involves him turning the screen dark while he turns invisible before he charges you.
* FlunkyBoss: Summons Sharknadoes and Cthulhunadoes that spew out flying shark projectiles called Sharkrons.
* FlyingSeafoodSpecial: He's a huge flying fish.
* GlowingEyesOfDoom: When he TurnsRed.
* HomingProjectile: His bubbles and his Cthulhunado typhoon.
* ImmuneToFlinching: Duke Fishron is one of the very few bosses in the game that cannot be stunned nor slowed by the Heart Arrows, which can otherwise stun even the Destroyer, Wall of Flesh and the Dungeon Guardian!
* ImplacableMan: Got buffed in 1.3--he will ''repeatedly'' charge at you if you exit the ocean, instead of charging five times then attacking.
* TheJuggernaut: It will only stop when it's transforming to its second state, pumping out bubbles or dead. He's also immune to the Stunned debuff.
* KingMook: To both a Mook (Pigron) as well as a particular fishing catch (Fishron).
* LightningBruiser: Extremely fast, extremely painful, and sports 50000 health, more than most other bosses.
* MixAndMatchCritters: A fish-pig-dragon creature.
* {{Mutant}}: The official achievement unlocked by beating him outright calls him one.
* NintendoHard: Deals painful damage with his attacks, moves extremely fast, and a lot of health to wear down. Speed-increasing items and Wings are pretty much mandatory if you don't want to be torn to shreds. In 1.3 and above, you're also constrained to fighting him within the ocean, or else he ''[[BerserkButton gets pissed]]''.
* RammingAlwaysWorks: Has a high tendency to ram the player.
* ShoutOut: Has the ability to summon Film/{{Sharknado}}es.
* TrademarkFavoriteFood: He can only be summoned via a Truffle Worm.
* TurnsRed: Gains GlowingEyesOfDoom, charges faster but less often, and changes his bubble spray into a spinning spray that creates more bubbles and his Sharknado into a Cthulhunado which is much larger, homes in on the player before deploying, and summons many more Sharkrons. The Fishron Mount obtained from him in Expert Mode allows the player to do this--when low on health, the player gains an attack and speed buff.
** Expert added a third phase to his fight: at critical health, he will darken the screen, turn invisible, and continuously charge at you while constantly teleporting to approach you from different angles.
* VictorGainsLosersPowers: When the player beats him, they get equipment based on his abilities: Flairon and Bubble Gun are based on his bubble spray, Tsunami is based off his relentless charges, Razorblade Typhoon is based off his Cthulhunado-spawning homing typhoons, the Tempest Staff is a smaller Sharknado, Fishron's Wings give the player the Duke's superior air and water mobility, and the Expert Mode Shrimpy Truffle nets the Duke himself as a mount, allowing ''you'' to [[TurnsRed Turn Red]] when low on health.

[[folder:Lunatic Cultist]]
After Golem is defeated, a group of cultists will gather outside the dungeon praying towards an ominous stone. Killing all of them incites the wrath of the Lunatic Cultist, who absorbs the power of the stone, and attacks you.
* ApocalypseCult: He's the leader of them.
* BigNo: He says this upon death.
* DoppelgangerAttack: If you fail to interrupt his DoppelgangerSpin, the copies follow him around in an upside-down 'V' formation and are able to attack you. They can't be damaged or destroyed until his next spin, which will cancel them out if you do it right.
* DoppelgangerSpin: After several magic attacks, he'll create several copies of himself surrounding a runic circle. If you don't hit the original (distinguished by a yellow vertical stripe on his hood, among other minor differences), it becomes a DoppelgangerAttack and he summons a phantasm dragon. Each time you fail this, he gains more copies until you get it right.
* EvilSorceror: Very much so.
* EvilSoundsDeep: His voice sounds inhumanly deep as he prays to the stone in BlackSpeech before absorbing it and turning his attention to you.
* FireIceLightning: Can cast homing fireballs, ice crystals that fire ice spikes, and lightning bolts.
* GetBackHereBoss: He teleports all over the place between attacks and always tries to stay above you, even if you try to chase him down using flight.
* HumanoidAbomination: The Lunatic Cultist may look human, but his exceptional magical strength as well as his voice, which borders on VoiceOfTheLegion, heavily implies that he is something not of this world.
* InstantAwesomeJustAddDragons: He can create a circle that summons a huge phantasm dragon.
* InstantRunes: He will create a massive runic circle just before creating a doppelgänger and attacking.
* MeaningfulName: He's lunatic in both senses of the word--crazy, and also moon-related.
* PlagueDoctor: He's got the outfit of one, at least.
* SquishyWizard: He has extremely low HP when compared to most of the other hardmode bosses, but he can deal out damage very quickly with his wide variety of magic attacks. He mitigates his frailty somewhat by moving around constantly and being hard to hit.
* UnstableEquilibrium: The fight with him can either be reasonably difficult or downright impossible, depending on your ability to interrupt his DoppelgangerSpin.
* WithMyDyingBreathISummonYou: He summons the four Celestial Towers when defeated.

[[folder:The Celestial Towers (Vortex, Nebula, Solar, and Stardust Pillar) ]][[quoteright:350:http://static.tvtropes.org/pmwiki/pub/images/celestial_towers.png]]
[[caption-width-right:350:"Celestial creatures are invading!"[[note]]From left to right: Vortex Pillar, Stardust Pillar, Nebula Pillar, Solar Pillar[[/note]]]]
Four ominous pillars that appear after the Cultist is beaten. These spawn powerful alien enemies, and must be defeated by killing enough of their minions to break the shield. Each of the pillars and their mooks correspond to a method of offence - Vortex for ranged, Nebula for magic, Stardust for summoner and Solar for melee.
* AmazingTechnicolorBattlefield: All of them turn the background to an ominous moon with coloured background when fought.
* BrownNote: It's suggested by the messages that appear after destroying them that they have a pretty bad effect on the player character. It is not clear whether this is the Towers' doing or the Moon Lord's.
-->'''First Tower:''' "Your mind goes numb.."\\
'''Second Tower:''' "You are overwhelmed with pain..."\\
'''Third Tower:''' "Otherworldly voices linger around you..."
* CosmicEntity: They have the markings of this as they both draw power from and seem to embody on a level their respective cosmic forces in the universe.
* DeflectorShields: When first encountered, they have a clear forcefield around them that makes them invulnerable. It's only when you kill off 100 (150 in Expert) of their minions that the shield breaks.
* EldritchAbomination: All four of the pillars are some kind of otherworldly aliens. It's unknown if they're even sentient. Many of the {{Mooks}} they teleport in also fit this, if they arenít [[HumanoidAbomination humanoid]].
* FlunkyBoss: The pillars do attack, but mainly rely on spawning minions. It's also required that you beat enough minions first in order to attack the boss itself. Once their shields are down, though, they are practically helpless and only have 20000 HP.
* MookMaker: Besides the bosses themselves, a number of the mooks can also spawn more mooks that will grow into even more Mook Makers if not removed in time.
* OurWormholesAreDifferent[=/=]SwirlyEnergyThingy: The Vortex Pillar creates these around the player, which spawn Alien Hornets.
* PlayingWithFire[=/=]ThePowerOfTheSun: The Solar Pillar's mooks are rather fiery and sun-like, and the pillar itself with attack with a shower of fireballs, many of which can be seen raining down in its background.
* ShockAndAwe: The portals created by the Vortex Pillar can sometimes shoot a bolt of lightning at you, instead of spawning more {{Mooks}}.
* ShowsDamage: Every time one of their minions (besides Crawltipedes) die, they generate a bolt of energy that strikes the Tower's shield and causes it to visibly weaken. The shield itself gets more and more transparent until finally bursting.
* StarPower: Of the Lovecraftian sort. The Stardust Pillar is able to create "stars" around it that spawn Star Cells and Milkyway Weavers.
* StationaryBoss: They don't move at all, and none of them apart from the Solar Pillar are directly capable of attacking you.

[[folder: Moon Lord]]
[[caption-width-right:350:"[[OhCrap Impending doom approaches...]]"]]
The Lunar Event Boss - a large, Cthulhu-like being that is summoned after the four Celestial Towers are destroyed. His arrival is signified by a sense of impending doom, as the screen starts warping and turning black. As of the 1.3 update, he is the final boss of the game.
* AntiRegeneration: When he's leeching energy from you, he applies the Moon Bite debuff which makes that affected player's lifesteal effects useless.
* AttackItsWeakPoint: The giant beating heart in his chest. The problem is that you must destroy all three of his eyes if you want him to expose it.
* BackgroundBoss: Stays in the background all the time. However, touching its eyes (or where they used to be) will deal CollisionDamage.
* BeamSpam: The Moon Lord ''excels'' at this, with his entire offensive pattern being pretty much trying to obliterate the player with endless volleys of eldritch-plasma blasts while trying to pick them off with up to ''three'' giant laser blasts in one go.
* BodyHorror: His body from the neck down looks mostly human, but everything below the chest is missing, complete with exposed ribs and spine. His Cthulhu head also has an exposed brain, his heart is exposed through his chest, and his forehead and hands both have eyes set into them that can pop out and leave a gaping maw behind.
* BossVulnerability: Each of the targetable eyes are a Wait Them Out sort, while the heart is Always Vulnerable once it's exposed.
* CognizantLimbs: The eyeballs in his hands and his ThirdEye can attack separately and must be destroyed for him to expose his core.
* CthulhuMythos: Heavily resembles Cthulhu. His eyeball minions are even called "True Eye Of Cthulhu". WordOfGod has stated that he is Cthulhu's brother.
* DamageSpongeBoss: His component parts have collectively more health than anything in the game. His ThirdEye and heart have more health than every other boss save the Destroyer.
* DarknessEqualsDeath: He turns the background around him black, so if you lose track of him, a good way to find out where he's gone is the background rapidly growing darker as he slowly comes back. Heíll also turn campfire flames ''black'' when heís summoned.
* EldritchAbomination: An eldritch horror from the depths of space.
* EvilIsBigger: The largest enemy in the game as of now.
* EyesDoNotBelongThere: Has an eye in each of his hands. He can also fire countless energy eyeballs at you for his attacks.
* EyesAreUnbreakable: Depleting the health of his eyes will simply cause them to pop out and become invulnerable True Eyes of Cthulhu instead of destroying them.
* FinalBoss: Is this for the entire game.
* FlunkyBoss: When each eye is beaten, they will become an invincible flunky that attacks on its own.
* GoForTheEye: The Moon Lord's eyes are his weak points in his first phase.
* HomingProjectile: Can fire Phantasmal Eyes that home in on players and explode.
* ImplacableMan: Do not let his slow movement fool you, this guy will never stop coming unless he kills you or dies trying. He will never despawn unless you die, so he'll chase you quite literally to the ends of the earth and the fact that he teleports to you when you get far enough away from him doesn't help.
* KaizoTrap: During his death animation, the holes where his weak points used to be will still hurt you; if you're low enough on health, you'll get killed and he'll disappear without leaving behind any of his valuable drops or giving you the achievement for killing him.
* LifeDrain: Has an ability where his mouth sends out a sucker that starts draining balls of energy from you. If the balls are not destroyed before they reach his mouth, he regenerates health. During this, he'll inflict the Moon Bite debuff which also prevents you from lifestealing from him for the next fifteen seconds or so.
* MightyGlacier: The most powerful boss, and yet also one of the slowest.
* NoSell:
** He's immune to lifestealing effects from the Spectre Armor and the Vampire Knives when he's leeching energy from you.
** As of, it's impossible to "cheese" him via using MercyInvincibility from other sources of damage--he will still hit you.
* NothingIsScarier: Before he appears, the background music ominously disappears.
* PowerFloats: Floats around the area effortlessly.
* SequentialBoss: His three main eyes must be destroyed first, then his core will open.
* SicklyGreenGlow: Various parts of his body glow blue-green, and while he's alive, the entire screen will be tinted the same color.
* StandardStatusEffects: Moon Bite is of the Decover type, preventing LifeDrain effects from working on him.
* StrippedToTheBone: When beaten, his skeleton drops to the ground.
* SuperPersistentPredator: Will chase the players across the map. made it such that he just teleports right to you if you get too far from it.
* TacticalSuicideBoss: The Moon Lord's forehead eye is closed and cannot be attacked most of the time. It only opens to fire the Phantasmal Deathray, at which point it becomes vulnerable to damage.
* ThirdEye: While he has a lot of eyes to begin with, the one on his forehead is the most prominent: it has the most health, is closed for most of the time and is the only one that can fire the Phantasmal Deathray.
* WaveMotionGun: Can fire a Phantasmal Deathray from his ThirdEye. It sweeps around from one side of the screen to the other and does a great amount of damage, but is stopped by solid blocks. When an eye is detached, it can use a similar but weaker laser.
* YouWillNotEvadeMe: The update made it such that he teleports right to you if you get too far from him.

!! Enemies

[[folder:Lost Girl/Nymph]]
What appears to be an NPC named "Lost Girl", similar to the ones the player can rescue. Approaching her, however, has her transform into a green-skinned nymph that will maul unsuspecting players with potent melee attacks.
* BarbieDollAnatomy: She's depicted as fully naked, but lacks nipples or genitalia. Probably a display of modesty more than limitations of the art style.
* FullFrontalAssault: She wears absolutely nothing while trying to kill the player.
* HornyDevils: Mentioned above, she's naked and fairly attractive. Until she turns that is...
* LightningBruiser: She hits like a truck, moves twice as fast as normal mooks, and is harder to knock back.
* LuckBasedMission:
** Finding her in the first place is luck, because unlike other enemies she doesn't move. Unless you have the Lifeform Detector, it's entirely possible you'll pass right by without even noticing her.
** She has a 50% chance of dropping the Metal Detector, one of the items needed to craft the Cell Phone. Considering her rarity, this can make obtaining it pretty annoying. In Expert Mode, thankfully, it's a guaranteed drop. Prior to the 1.3 update, getting her banner was even worse, as the drop rate is only 0.5%. Now you just have to kill 50 of her. Good luck with that.
* SchmuckBait: Hey, it's another NPC. I'll just go up and--"[[HaveANiceDeath Player's flailing about was finally stopped by Nymph]]."
* YouGottaHaveBlueHair: She has light silver-y blue hair. Made more obvious in the "Deceiver of Fools" achievement image.

A Hardmode enemy that only spawns during Blood Moons. The Clown throws bombs, and, until Patch 1.2, was the only enemy in the game capable of damaging blocks.
* MadBomber: Its modus operandi.
* MonsterClown

[[folder:Sand Elemental]]
The Sand Elemental uncommonly appears in a Hardmode Desert biome during a sandstorm.
* DishingOutDirt
* TornadoMove: Her only attack is conjuring several "sandnados" which hurt you upon touching them.

[[folder:Ice Golem]]
The Ice Golem uncommonly appears in a Hardmode Ice biome during a blizzard.
* EyeBeams: Shoots {{Freeze Ray}}s at the player from its eyes.
* FreezeRay: Its EyeBeams have a chance of chilling or even freezing the player.
* {{Golem}}: One that's made of ice.
* AnIcePerson: Its attacks deal icy damage and can freeze the player.
* MightyGlacier: Moves slowly, but can deal a good amount of damage to the player via its EyeBeams.

The Wyvern sometimes appears in high altitudes in Hardmode.
* BossInMookClothing: It's a normal (if uncommon) enemy that can spawn without warning, comes packing more HP than most pre-Hardmode bosses, and hits like a truck. What really puts them in this category, however, is that it does not get detected by the Lifeform Analyzer, unlike most uncommon enemies.
* CallAPegasusAHippogriff / OurDragonsAreDifferent: Despite having the name of a variant of Western Dragon, the design of this one is more Eastern.
* InstantAwesomeJustAddDragons: The only ones in the game, not counting Arch-Wyverns in the console version, and Betsy and the Stardust Dragon in the PC version.
%% * LightningBruiser
* SuperPersistentPredator: Ever try teleporting back home just to get away from these beasts? Don't, because when you're least expecting it, they'll swoop out of nowhere from the sky to finish the job of killing you.

All slimes behave the same: They hop to get around and all but a few drop slime gel upon death. They come in all different colors and sizes such as green, blue, red, purple, yellow, black slimes that inflict darkness (reduced light vision), [[AsteroidsMonster mother slimes and their baby slimes]], [[MetalSlime Pinky]], [[UndergroundMonkey Jungle Slimes]], Dungeon Slimes that drop keys instead of gel, Lava Slimes that turn into lava in Expert Mode, and [[KingMook The Slime King]]. In Hardmode, they are joined by the Toxic Sludge that can poison the player, [[AsteroidsMonster Corrupt slime and its slimelings]] that can also inflict darkness with a Shadow Slime variant in the Console version, the slimer that [[{{AirborneMook}} flies on bat wings]], and the glowing Illuminant slime that's found in the underground Hallow, above ground is the Rainbow Slime that can rarely spawn in rainstorms and drop rainbow bricks. The Crimson on the other hand will have Crimslimes that don't have the splitting or darkness inducing effect of Corrupted (or Shadow) slimes.
* BlobMonster: Naturally, given that they are gelatinous monsters.
* GlacierWaif: Pinky may be the smallest slime of the game, but it's only second to King Slime in terms of health when it comes to all of the slimes available before hardmode and it drops dozens of Pink Gel in contrast to its size.
* TheGoomba: Slimes are generally the first enemy you'll encounter in Terraria. They're also some of the weakest and most numerous in the game.
* InformedAttribute: The gel they are made of is apparently rather tasty (particularly Pinky's), but it's impossible to eat it raw without crafting it into a potion.
* KingMook: The King Slime.
* MetalSlime: Pinky, who drops a single gold coin and some Pink Gel but happens to have the highest health of any pre-hardmode slime. Rainbow Slimes count too; they show up very rarely in the Hallow during rainstorms while you are close to pure land, and drop the sought-after Rainbow Bricks.
* MoneySpider: Jungle Slimes, pre-hard mode. Most other enemies drop maybe one silver coin if they're high tier and you get lucky, while Jungle Slimes drop four or five silver coins as standard, aren't particularly hard to kill, and [[ZergRush spawn in droves]].
* RareRandomDrop: The Slime Staff has a 0.01% chance of being dropped by most slime variants. Hours upon hours upon hours can be spent trying to get the staff.
* StandardStatusEffects: Darkness (reduced light vision) and poison. The lava slime originally counted for fire since they turned into lava when killed before a patch removed that trait, until it was added in again as an Expert Mode trait.


[[folder: Pinky ]]

A rare overworld slime that is tiny and pink. It's hard to hit but, when killed, it will drop a single gold coin (worth 100 silver, or 10,000 copper) and some Pink Gel, useful for players starting out.
* BlownAcrossTheRoom: Pinky is more susceptible to knockback than just about any other enemy in the game, meaning that it often goes flying across the screen after a single hit. This also makes it harder to kill, since you often have to alternate between hitting it and running after it for another hit.
* MetalSlime: And an actual slime to boot.



Once night comes, slimes stop appearing, and zombies come instead. They're just like your standard zombie, being slow but coming in great numbers. They're especially dangerous during a blood moon, when they appear in greater numbers and gain the ability to open doors.
* EliteMooks: Blood Zombies are tougher, faster, and more powerful versions of the regular zombie that only spawn during a blood moon. Expert Mode also adds zombies wielding severed arms as weapons, letting them hit harder and from longer range than your average zombie.
* GrievousHarmWithABody: Some zombies in Expert Mode come wielding severed arms as weapons. Additionally, almost all zombie variants have a chance of dropping a Zombie Arm that can be equipped by the player.
* IncongruouslyDressedZombie: Doctor Bones is dressed in archaeologist gear, while the Bride and Groom sport full wedding attire. The basic zombies also have Raincoat and Eskimo variants which spawn in rain and snow biomes respectively.
* NightOfTheLivingMooks: Literally, since [[NocturnalMooks they only spawn at night]].
* PaletteSwap: Zombies have a very wide range of possible sprites. Interestingly, each variant of zombie actually has slightly different stats, and some have different drops as well.


[[folder: Doctor Bones ]]

A zombie that spawns rarely in the jungle (both above and underground) during the night, wearing an archaeologist's hat, who drops it when killed. It's tougher than the regular zombie as well.
* MetalSlime
* ShoutOut: Like the rest of the archaeologist's vanity set, to ''Franchise/IndianaJones''.


[[folder: The Groom ]]

A zombie wearing a top hat that spawns during a blood moon, the top hat is also dropped upon death, like Dr. Bones, he also has higher HP than the regular zombie.
* MetalSlime: He only appears during a blood moon, and even then, only rarely, and has much higher health than a regular zombie.
* NiceHat: Sports a nifty top hat that you can claim for yourself when you kill him.
* ShoutOut: It may be a reference to the zombie groomsman in ''Film/ShaunOfTheDead''.


[[folder: The Bride ]]

A zombie wearing a wedding gown and veil that spawns during a blood moon. Like the Groom, she has much higher HP than your average zombie, and her clothing is dropped on death.
* BloodSplatteredWeddingDress: Attacks you in full wedding wear.
* MetalSlime: She only appears during a blood moon, and even then, only rarely, and has much higher health than a regular zombie.


You spend a lot of time battling skeletons in the game so here's a list of them: The first type of skeleton is found underground and drops hooks occasionally. Then, there's the undead miner and [[Film/MontyPythonAndTheHolyGrail Tim]]. Skeletron is fought to get into the dungeon. Once you get to the dungeon, you find angry bones that come in their normal size, along with [[GiantMook big boned]] and [[MiniMook small boned]] sizes. Also present are dark casters and then the cursed skulls (which can curse the player, rendering them unable to use items). In the underworld, you will find the bone serpent. On hard mode, the player fights armored skeletons and their heavy variants underground that poses a threat of breaking their armor (halved defense for five minutes) and skeleton archers that shoot flaming arrows at the player. And, finally, there is Skeletron Prime.
* DemBones: A whole collection of them, no less!
* StandardStatusEffects: Cursed (unable to use items) from the flying cursed skulls, broken armor (halved defense for 5 minutes) from armored/heavy skeletons, and fire from skeleton archers.


[[folder: Undead Miner ]]

A skeleton that appears underground, wearing a glowing mining helmet. When killed, it can drop bombs, a hook, or mining pants/shirt. They're easy to spot due to the glow of their helmets, and they can help illuminate undiscovered caverns.
* MetalSlime: Quite rare, and killing it is the only way to get the Bone Pickaxe and the Mining Armor.


[[folder: Tim ]]

A skeleton sorcerer that can spawn underground. Like other casters, it will teleport around and fire projectiles until you kill it. When killed, Tim drops a wizard hat that can be used to increase magic damage or simply as a vanity item.
* MetalSlime
* ShoutOut: To ''Film/MontyPythonAndTheHolyGrail''.


[[folder: Rune Wizard ]]

Appearing in the Hardmode Caverns, the Rune Wizard is an extremely rare enemy with one of the most powerful attacks in the game.
* GlassCannon: He can dish out some incredible pain, but he can't take a hit.
* NiceHat: You get his hat and robe if you kill him.
* TeleportSpam: Not to the extent of the dungeon mages, but he does warp around if you can't kill him quickly.


[[folder: Paladin ]]

Appearing in the 1.2 Hardmode Dungeon, the Paladin is a heavily armored knight that throws giant hammers that pass through walls.
* DropTheHammer: And they will sometimes drop from dead Paladins, and allow you to do the same thing.
* LightIsNotGood: It has really bright armor, and it starts not-so bright chaos.
* MightyGlacier: With its very high offense, it can easily maim you in seconds while you struggle to kill it.
* SwordBeam: In the form of hammer projectiles.


!! Biomes

[[folder: The Corruption]]
Once you start exploring the Corruption, there are various, sickly looking, enemies, starting with the Eater of Souls: Small, flying enemies that swarm the player, along with [[{{GiantMook}} Big Eaters]] and [[{{MiniMook}} Little Eaters]], all three of which drop rotten chunks. There is also the Devourer [[{{SandWorm}} Worm]] that burrows through the ground, also dropping rotten chunks, along with worm teeth, used for unholy arrows. Then the king mook of the environment is the Eater of Worlds (see above in bosses). Bunnies and goldfish turn into corrupted versions of themselves during a blood moon. Once in hardmode, the aforementioned [[{{AsteroidsMonster}} Corrupt Slime and its slimelings]] spawn, along with the [[{{AirborneMook}} Slimer]]. Then there is the Corruptor, a flying enemy like the Eater of Souls but it can shoot vile spit that has a chance to weaken the player. If the Corruption spreads to a desert, dark mummies will spawn, which drop dark shards by chance. Deeper down underground, World Feeders start to spawn, looking like the [=EoW=] mentioned above, that drop cursed flames when killed. Cursed hammers also roam the caves, and charge their target, having a chance to curse the player (unable to use items). Finally, there's the Clinger that acts like a plant enemy such as the man-eater, but it can spew cursed fireballs, flames that cannot be put out, even by water, meaning they also drop cursed flames when killed.
* AirborneMook: Eaters of Souls, Corruptors, and Slimers.
* AlienKudzu: Although not confirmed, there all too many subtle hints that the Corruption at first may have been of extraterrestrial origin (i.e: the connection to meteors and the Shadow Orbs that are meant to be destroyed in order for them to appear, the Band of Starpower that can be released from said Shadow Orbs, etc).
* DarkIsEvil: It turns the landscape bleak and foreboding and turns the very rock black.
* EldritchLocation: This place compared to the land around it is unnatural. Weird, rotting monstrosities spawn out of deep chasms in the ground and it assimilates the land around it. All of that can tell you that all is not well in that land.
* EliteMook: Corruptors, considering that they can appear much more often than other Hardmode corrupted creatures and have that little bonus of spreading the corruption with their vile spit. Past 1.2 though, the corruption spreading bit has been taken out but they have a decent ranged attack and enough health to shrug off some attacks.
* EvilTaintedPlace: An evil, spreading biome that corrupts the land and turns critters into twisted, stronger versions of themselves.
* {{Foil}}: A rather obvious one to the Crimson: while both are eldritch (and possibly, truly extraterrestrial) AlienKudzu anomalies, the Corruption more represents inherent evil than the visceral horror of its counterpart and is somewhat more fantasy-like in nature, which becomes more apparent in Hardmode.
* FlyingWeapon: [[DropTheHammer The Cursed Hammer]]; a flying cursed hammer, of course.
* GiantMook: Big Eaters, which are slightly stronger than the regular Eaters. World Feeders are this to Devourers.
* MiniMook: Little Eaters, which are slightly weaker than the regular Eaters.
* ShoutOut: Possibly one to Literature/TheColourOutOfSpace.
* StandardStatusEffects: Corrupt Slimes and Dark Mummies inflict Darkness, Clingers inflict Cursed Inferno (water cannot put it out), Corruptors inflict Weakness (reduced stats) and Cursed Hammers inflict Cursed (cannot use any weapons or consumables).
* UnholyGround: An evil land filled with various eldritch monsters that spreads to the lands around it, ayup. It's so unholy that [=NPCs=] cannot live on it.

[[folder: The Crimson]]
The Crimson biome appears as an alternative to the regular Corruption, a land of rotting flesh and bodily fluids. Their lands instead resemble neuron pathways rather than the "impact craters" style of their counterparts. Their normal mode enemies include the Crimera, a floating cockroach-like expy of the Eater of Souls, Face Monsters which are basically faster and tougher zombies, Blood Crawler which are giant spiders which crawl long the walls to get you, and Blood Feeders which are monstrous fish. Hardmode enemies include the Crimslime, the Floaty Gross, the Herpling, and the Ichor Sticker.
* AlienBlood: Ichor, the elemental counterpart to the Corruption's Cursed Flames, is consistently portrayed as both the Greek mythology (blood of gods and / or immortals, deadly to mortals) and the bodily fluid (i.e: pus) versions of its namesake.
* AlienKudzu: Possibly, just like the Corruption (if the connection to Cthulhu with the Brain of Cthulhu and by extension, the Moon Lord, was any indication).
* AnimalisticAbomination: Blood Crawler and Blood Jellies.
* ArtisticLicenseBiology: The Blood Crawler drops vertebrae despite being based on an invertebrate. Could be a way to show that the eldritch nature of the Crimson that goes against nature itself.
* BigCreepyCrawlies: Blood Crawlers are basically huge ticks.
* BloodyMurder: The Ichor Sticker shoots ichor at you, described as the blood of gods.
* BodyHorror: Face Monsters. Floaty Gross as well, if it's [[{{Buffy Speak}} name]] is any indication; considering that it rather looks like a [[Franchise/{{Pokemon}} Gardevoir]] made out of bodily fluids, one could say it's pretty spot-on...
* CameBackWrong: The Floaty Gross is classified as an Undead enemy, and it has come back alright, and very ''[[HumanoidAbomination very]]'' [[BodyHorror wrong.]]
* EldritchLocation: Like the Corruption. It's an otherworldly, unnatural place that turns the earth itself into flesh as it assimilates it, and spawns murderous, disgusting, BodyHorror-riddled [[EldritchAbomination Eldritch Abominations.]]
* {{Expy}}: The Crimera to the Eater of Souls, Crimslime to Corrupted Slime, the Ichor Sticker to the Corruptor and the Crimson Axe to the Cursed Hammer.
* EvilIsVisceral: An evil place with a flesh, blood and gore theme.
* EvilTaintedPlace: An alternative to the usual purple one.
* {{Foil}}: To the Corruption: while both are eldritch (and possibly, truly extraterrestrial) AlienKudzu anomalies, the Crimson more represents visceral horror than the inherent evil of its counterpart and is even more sci-fi in nature (especially if one believes in the theory that the Crimson is just Cthulhu's rotting remains tainting the landscape).
* FlyingSeafoodSpecial: The Ichor Sticker is basically a flying squid.
* FlyingWeapon: [[AnAxeToGrind The Crimson Axe]]. A counterpart of the Cursed Hammer.
* HumanoidAbomination: Face Monsters and to a lesser degree Floaty Grosses.
* LovecraftianSuperpower: The Ichor Stickers wear this on their sleeve.
* NightmareFace: There's a pretty good reason why the Face Monster is named that way.
* NoSell: Forget using Sunflowers to stop Pre-Hardmode Crimson, it will uproot them and take over the grass instead.
* ProphetEyes: Any Crimson creatures with visible eyes have them glazed over with a reddish tint.
* RedAndBlackAndEvilAllOver: The combination of black necrotic flesh and blood-covered tissue give it this look.
* ThemeNaming: Many of the Crimson creatures and related items begin with "Crim".
* ShoutOut: How the trees in the background of Forests afflicted with Crimson are covered in intestines and overall the entire biome's red gore theme (and possible connection to an extraterrestrial lifeform) brings to mind the Red Weed from Literature/WarOfTheWorlds.
* StandardStatusEffects: Ichor Stickers inflict Ichor ([[DamageIncreasingDebuff lowers defense considerably]]), while the Floaty Gross inflicts Weakness.
* WombLevel: It's definitely this.

[[folder: The Hallow]]
Once hardmode is activated, the hallow will start spreading as a bright, colorful environment with pearlstone, teal-colored grass, and rainbow-colored trees. This is also a straight example of LightIsNotGood, meaning that the inhabitants aren't merciful, such as violent pixies that deal heavy amounts of damage, along with a chance to slow you or silence you (unable to cast spells). Pixies drop dust when killed. Unicorns also roam around the hallow, and will charge you at high speed. They drop unicorn horns for the purpose of holy arrows and such. At night, there are also gastropods that can slow the player on contact, fire lasers at you from as far as off-screen, and drop gel upon death, like slimes do. Hallowed deserts contain a light equivalent of the dark mummies that drop light shards. Underground, there's the aforementioned illuminant slime as well as an illuminant bat. Chaos elementals that TeleportSpam to attack and avoid the player are also found here. Contrasting the underground corruption, there are enchanted swords that also attack the player and curse them.
* CrapsaccharineWorld: Bright, cheerful and healthy for the environment...and filled with vicious fairytale creatures.
* FlyingWeapon: [[{{BFS}} The Enchanted Sword]]. Unrelated to the equipable sword of the same name (in fact it looks like a glowing Excalibur). It's also the Hallowed version of the Crimson Axe and Cursed Hammer.
* FlyingSeafoodSpecial: Gastropods, if you consider them jellyfish.
* HeavenlyBlue: Hallowed grass becomes blue, and the Hallow in general is stated as having been overcome by the spirits of light. Additionally, there's also the Holy Water, a thrown weapon that spreads hallow upon impact.
* HolyIsNotSafe: Unless you enjoy getting gored repeatedly by unicorns and poked to death by hostile pixies, do ''not'' tread lightly on the Hallow.
* LightIsNotGood: Played painfully straight - despite the rainbows, pastel colors and flora-friendly atmosphere the biome is filled with creatures just as dangerous as the ones dwelling within the Corruption and Crimson. However, the Hallow does not force [=NPCs=] to move out unlike the Corruption and Crimson.
* LightningBruiser: Unicorns. Chaos Elementals, considering that they can take about as much in damage, move as fast as the player and also TeleportSpam to close the distance even faster.
* StandardStatusEffects: Pixies inflict slowness (along with the gastropod) and silence, enchanted swords inflict cursed, light mummies inflict confusion.
* TeleportSpam: Chaos Elementals teleport near the player and dash around. They have a small chance of dropping a Rod of Discord, which allows the user to teleport.


!! Events
[[folder: Blood Moon]]
The Blood Moon has a 1 in 10 chance of occurring each night with a visible moon so long as a player with 120 health or more is in the world. Unlike other events, the Blood Moon incorporates biome specific monsters as well as their event specific monsters into the fray. In addition, certain harmless critters, such as rabbits and goldfish, turn hostile during the event, and will attack the player. Zombies and other monsters gain the ability to open doors, making them a much larger threat then they are usually.
* TotalEclipseOfThePlot: Possibly, as real-life blood moons are actually lunar eclipses.

[[folder: Slime Rain]]
The Slime Rain occurs once the player(s) have 140 life and 8 defense or it can occur before that with a lower chance in Expert Mode, at a ≈%10 chance per day pre-hardmode and a ≈%6 chance during hardmode. When it occurs, Slimes literally start falling from the sky even when enemies normally do not spawn such as being near [=NPCs=]. The event ends 24 (in-game) hours after it begins or when the player kills 150 slimes then it will summon the King Slime, after which the event ends when the King Slime is defeated. Subsequently, the chances of a Slime Rain occurring after defeating the King Slime are roughly halved and it only requires killing 75 slimes the next time a Slime Rain occurs.
* ItsRainingMen: The idea behind this event. The background even changes accordingly to feature this.

[[folder: Old One's Army]]
A special crossover event (from ''VideoGame/DungeonDefenders 2''). Triggered by placing an Eternia Crystal on an Eternia Crystal Stand, the objective is to protect the Eternia Crystal from waves of enemies seeking to destroy it. Unique in that the event's difficulty depends on when you trigger it: triggering it after defeating the Golem results in more waves of enemies (and the enemies themselves having better stats) than you'd get if you triggered it as soon as it's available. When triggered in its hardest version, the event ends with a fight against a "boss", Betsy.
* ActionBomb: Both Kobolds variants are some of the few enemies in the game that do this.
* FireWaterJuxtaposition: Betsy (fire) and Duke Fishron (water). Betsy has an attack pattern very similar to Duke Fishron's, both alternating between charging, a blowing attack (a fire breath and several bubbles, respectively), and throwing projectiles (fireballs and sharknados, respectively). They're meant to be fought at roughly the same moment of the game (soon after defeating Golem), and accordingly they have the same health (although Betsy has lower damage and defense since it's part of an event, while Duke Fishron is a stand-alone boss).
* FlunkyBoss: The Dark Mage has the power to summon Old One's Skeletons.
* InstantAwesomeJustAddDragons: Betsy is the only enemy in the game based on a Western dragon (other dragon-like enemies like Wyverns or Phantasm Dragons resemble more Eastern dragons).
* OurMonstersAreDifferent: An interesting case. The enemies that appear during the event are all based on enemies from ''VideoGame/DungeonDefenders 2''. However, many of those enemies (namely skeletons, goblins, wyverns and lightning bugs) happened to share a name with creatures previously found in ''Terraria'', even though all of them are very different from the already-existing version (the normal lightning bug is even a ''critter''). To distinguish them, the new version has "Etherian" or "Old One's" in front of his name.
* OurOgresAreHungrier: Ogres appear as a mini-boss during this event.
* ShockwaveStomp: One of the Ogre's attacks.
* StandardStatusEffects: Several of them. Lightning Bugs can reduce your damage while Wither Beasts can reduce your defense. Ogres throw you a snot ball that slows you while Betsy is able to burn you.
* TowerDefence: As expected from an event inspired by ''VideoGame/DungeonDefenders 2''.
* YouShallNotPass: Your goal in the game is to prevent hordes of mobs from taking out your crystals.

[[folder: Goblin Army]]
Once the player has over 200 health and has defeated either the Eater of Worlds (if they are playing in a game world with Corruption) or the Brain of Cthulhu (if the game world has Crimson), then the goblin army may invade at the start of a random day.
* AirborneMook: The Summoner can fly around to evade your attacks.
* BerserkButton: Apparently you can start a war with them using a flag made of tattered cloth. The Goblin Tinkerer mentions that they have quite the HairTriggerTemper.
* BossInMookClothing: The Goblin Summoner, who only appears in Hardmode, is much beefier than the rest of her army and summons homing projectiles on you.
* FragileSpeedster: Thieves - weak but fast, and they can open doors faster than other goblin types.
* GlassCannon: Archers: they're not as fragile as the wizards, but they are made short work of if you get close to them.
* TheGoomba: Goblin Peons are the weakest and most expendable units, although they do have the ability to break down (not open like Blood Moon Zombies, ''break down'') doors.
* HitboxDissonance: Peons and Thieves have a smaller hitbox than their sprite, allowing them to squeeze through smaller areas.
* MightyGlacier: Goblin Warriors. They're big and slow and can take more hits than the Peons.
* SquishyWizard: Sorcerers, who are commonly offed with a single hit. Subverted with Summoners, who have much more health than the rest.
* TeleportSpam: Sorcerers, and the Goblin Summoner takes this UpToEleven.
* ZergRush: A single goblin (aside from the Summoner) is barely a threat, but given that they come in an army, they can still pose a threat to weaker characters by weight of numbers.


[[folder: Goblin Scout ]]

A semi-rare enemy that appears above 0 depth, during the day, around two-thirds away from the center of the map (the same area in which the King Slime can spawn). Scouts will not spawn on sand or in the corruption, nor will they appear among the other goblins during the goblin invasion.
* MetalSlime: Quite rare, only spawn on the outside of the map, and killing several of them is the only way to get the summoning item for the Goblin Army.


[[folder: Pirate Invasion]]
The pirate invasion can occur during Hardmode by a 6.22% chance at the start of any day or if the player uses a pirate map (dropped from enemies in the ocean) and approaches much like a goblin invasion. The force consists of Deckhands, Deadeyes, Corsairs, Crossbowers, Captains, Parrots, and the "boss", the Flying Dutchman.
* AirborneMook: Parrots are fast flying enemies that deal large amounts of damage if they hit you.
* AuthorityEqualsAsskicking: The Captains are the toughest to deal with out of all the types of pirates.
* BossInMookClothing:
** Captains, which come with high HP, are immune to knockback (although constant DPS and DOT does keep them from attacking) and carry a rapid fire machine gun with a cannon strapped to it like an [[{{GrenadeLauncher}} M203]].
** The Flying Dutchman, a large flying pirate ship that rains cannonballs and drops pirate mooks into the fight. It has four high health cannons that must be taken down in order to be beaten.
* GuysSmashGirlsShoot: The Deckhands and Corsairs will attempt to charge the player, and while the Deadeye and Captain do use ranged weapons, they still attempt to move towards the player to deal collision damage. The female [[PirateGirl crossbower]] however stays in the back lines firing flaming arrows.
* MightyGlacier: The Captains are immune to knockback and can both dish out and endure heavy damage. However, they are quite slow.
* PirateGirl: The Crossbower is one of the few female humanoid enemies in the game.
* PirateParrot: The parrots, which appear alongside the pirates.

[[folder: Solar Eclipse]]
After a Mechanical Boss has been defeated, there is a 4% chance that the entire day may be a Solar Eclipse, where monsters straight out of horror movies appear in droves to attack the player. It can also be summoned by using the Solar Tablet during the day. The monsters include Swamp Things, Vampires, Eyezor, Frankenstein, The Possessed, Fritz, and Creature from the Deep. Reapers and Mothron appear after all three Mechanical bosses are beaten, and Butchers, [=NailHead=], Deadly Spheres, Psycho and [=Dr. ManFly=] appear after Plantera is beaten.
* BossInMookClothing: Mothron is counted as a normal enemy, but it has nearly boss-level health, a powerful dash attack, and can spawn eggs that hatch into smaller versions of itself.
* MonsterMash: Loads of classical and horror movie monsters spawn during this event.
* ShoutOut: Nearly all of the enemies are based on various horror movie monsters.
** Swamp Thing: ComicBook/SwampThing.
** Frankenstein: Literature/{{Frankenstein}}
** Fritz: [[TheIgor Igor]]
** The Possessed: [[Film/TheExorcist Posessed Regan]]
** Creature From The Deep: [[Film/CreatureFromTheBlackLagoon Gillman]]
** Mothron: [[Franchise/{{Godzilla}} Mothra]]
** Butcher: [[Franchise/TheTexasChainsawMassacre Leatherface]]
** Psycho: [[Franchise/{{Halloween}} Michael Myers]]
** [=NailHead=]: [[Franchise/{{Hellraiser}} Pinhead]]
** Deadly Spheres: [[Film/{{Phantasm}} Sentinel Spheres]]
** [=Dr. ManFly=]: [[Film/TheFly1986 Seth Brundle]]
* TotalEclipseOfThePlot: Its in the name. A solar eclipse takes up the entire day, spawning monsters that will keep the player busy.
* WallCrawl: The Possessed can climb on background walls toward you. It's also immune to knockback while doing so, forcing you to try and wear down its health before it reaches you.

[[folder: Martian Madness]]
When traveling around the map after Golem is defeated, one may spot a Martian Probe. If the player gets into its sensors, it will attempt to fly away, and if successful, the Martian Madness event will trigger. The force consists of Martian Walkers, Martian Drones, Martian Officers, Brain Scramblers, Gigazappers, Gray Grunts, Martian Engineers (and their spawned Tesla Turrets), Skutlix, Skutlix Gunners, Ray Gunners, and the boss, the Martian Saucer.
* AirborneMook: Martian Drones fly around and attempt to kamikaze the player.
* AlienBlood: Their blood seems to be purple in colour, considering the color of the flesh on their gibs.
* BossInMookClothing: The lightning-quick Martian Saucer. It has four high health cannons that provide it with a plethora of attacks such as BeamSpam and MacrossMissileMassacre, and a DeathRay it will use that deals huge damage. When those four cannons are destroyed... it becomes vulnerable, but will then ''repeatedly'' use the DeathRay attack. Thankfully, you can spare yourself from the beam by hiding underneath some blocks. The game even displays a "Martian Saucer has been defeated!" message when one is destroyed as it does for bosses, and the Saucer has its own trophy.
* BossRush: It's not uncommon for a new Martian Saucer to show up as soon as you destroy one.
* BeamSpam: The entire event packs enemies carrying various Tesla Turrets and ray guns. You ''will'' be on the receiving end of this when enough of them show up. The Martian Saucer also has two laser machine-guns included in it's armament and will occasionally stop to rain a hail of painful energy bolts upon your position.
* DeflectorShields: The Martian Officer sports these, allowing him to take more damage than the normal martians.
* FlyingSaucer: The Martian Saucer. It can drop a Cosmic Car Key, which allows you to ride your own.
* TheGreys: The martians are based off these.
* KaizoTrap: When the Martian Saucer explodes, it launches bits of scrap that can still deal contact damage.
* MacrossMissileMassacre: The Martian Saucer possesses two missile launchers on it's sides, and will use them to let loose a sizeable volley of homing missiles upon your position.
* MindRape: The Brain Scrambler, as its name suggests. Its ray gun fires lasers that can inflict the Confused status.
* ShockAndAwe: The Tesla Turrets deployed by Martian Engineers. It can even cause an "electrified" debuff that deals constant damage, more so if you're moving. The Martian Saucer can drop the Electrosphere Launcher.
* TripodTerror: The Martian Walkers.
* TheTurretMaster: Martian Engineers can spawn Tesla Turrets which attack you.
* WaveMotionGun: The Martian Saucer has one of these. It can also drop the Charged Blaster Cannon which can be charged to fire this.
* WeaksauceWeakness: The Martian Saucer has no attacks which can pass through blocks. A simple box thick enough to block splash damage from the missiles renders it harmless, provided you leave a hole for something to shoot through or something that shoots through blocks.

[[folder: The Pumpkin Moon]]
By crafting a Pumpkin Moon Medallion and using it at night, the player can summon the Pumpkin Moon. The Pumpkin Moon is similar to the Goblin and Pirate invasions, but it also has some special mechanics of its own. The invasion will progress in waves, each one featuring progressively harder batches of enemies to fight. The player can encounter Scarecrows, Splinterlings, {{Hell Hound}}s, Poltergeists, and [[HeadlessHorseman Headless Horsemen]]. Killing enough enemies will allow the player to move on to the next wave until they reach wave 15, the final wave. Another key difference from the other invasion events is that starting with wave 4, boss-like enemies will emerge. In this case, they are Mourning Wood and Pumpking.
* BossInMookClothing: The Headless Horseman is halfway between the mooks and the bosses, boasting a huge health pool (more than Mothron and slightly less than Mourning Wood), extremely high contact damage, and [[ContractualBossImmunity immunity to all debuffs]]. It's still counted as a normal enemy.
* ScaryScarecrows: The first Mook to show up. A-list CannonFodder compared to the other monsters.
* WhenTreesAttack: The Splinterlings and Mourning Wood.
* ZergRush: The basic premise of the first few waves, before the Mourning Wood appears. After Wave 15, you can end up being zerged [[BossRush by the bosses]].


[[folder: Mourning Wood ]]

An animated dead tree that first appears on Wave 4 of the Pumpkin Moon.
* FlechetteStorm: Sprays out loads of burning spikes and splinters.
* GettingCrapPastTheRadar: Its name is a play on the term referring to morning penile erections, and the term has also been used as slang for getting an erection during a funeral.
* KingMook: To the Splinterlings.
* MiniBoss: Quite a powerful {{Mook}}, but not too hard to defeat.
* PlayingWithFire: Spits flaming pieces of wood at you to attack.
* TimeLimitBoss: Mourning Wood will attempt to flee at dawn, when the Pumpkin Moon ends. However, it's slow enough that you can still easily finish it off before that happens.
* WhenTreesAttack: A dead, burning tree that tries to kill you.


[[folder: Pumpking ]]

A cloaked figure with vines that end in scythes for arms, and a pumpkin for a head. He appears on Wave 7 of the Pumpkin Moon and is considered to be the boss of the event.
* AuthorityEqualsAsskicking: The Pumpkin Moon's final adversary, and the most powerful.
* BadassCape: He doesn't seem to have a body under it, but he wears a nice black cape anyway.
* CallBack: Has some similarities to Skeletron, in that it is a floating body that attacks using two disembodied arms. However, Pumpking has some nasty tricks of its own, like firing large scythe-shaped projectiles at the player.
* SinisterScythe: Has two for arms.
* PlayingWithFire: Can conjure flaming scythes and also spit embers at you.
* PowerFloats: Constantly floats around the area, making it somewhat annoying to hit him.
* TimeLimitBoss: When dawn breaks and the Pumpkin Moon ends, Pumpking will vanish immediately.

[[folder: The Frost Moon]]
The Frost Moon works similarly to the Pumpkin Moon, but features even more difficult enemies to deal with. Crafting and using the Naughty Present will make the player the target of an invasion by nightmarish Christmas-themed enemies: living Gingerbread men, Zombie Elves, Elf Archers, Nutcrackers, Yetis, Elf Copters and multiple [[TheKrampus Krampus]]. The Frost Moon also has three "boss" monsters with the Everscream, Santa-[=NK1=] and the Ice Queen.
* NintendoHard: The Lunar Events aside, this is ''the'' toughest event in the game yet.
* NonHumanUndead: Zombie Elves.
* ZergRush: The basic premise of the first few waves, before Everscream appears.


[[folder: Everscream ]]

An animated Christmas tree that first appears on Wave 4 of the Frost Moon.
* FlechetteStorm: Shoots out a flurry of razor-sharp pine needles.
* MiniBoss: Has less health than a boss-level enemy, but still a very formidable foe.
* ImprobableWeaponUser: Can also fire out exploding Christmas ornaments.
* SuspiciouslySimilarSubstitute: Is pretty much a Christmas-themed version of Mourning Wood. However, its attacks can't pass through blocks.
* WhenTreesAttack: A Christmas tree that tries to kill you.


[[folder: Santa-[=N K1= ]]

A tank-like mecha with the appearance of SantaClaus carrying a Gatling gun and a rocket launcher. It appears on Wave 7 of the Frost Moon.
* BackpackCannon: It's used to fire presents that rain down on you.
* BadassSanta: Like the other boss enemies in this event, he won't disappoint in terms of asskicking when he shows up.
* BadSanta: While Santa himself is not evil in ''Terraria'', Santa-[=NK1=] is a Santa-faced tank that tries to blast the player into bloody chunks with machine guns, rockets, and explosive presents.
* DeathFromAbove: Can make it rain down explosive presents on you.
* GatlingGood: Carries an arm mounted Gatling gun, which he will fire upon you with sometimes.
%%* GlowingEyesOfDoom
* HeavilyArmoredMook: It has one of the highest defense ratings in the game.
* KillerRobot: It's a Santa-based robot that attempts to massacre you with a huge arsenal.
* MacrossMissileMassacre: Carries a rapid missile launcher. Unlike the machine gun, the rockets can penetrate blocks.
* MiniBoss: Has less health than a boss-level enemy, but still a very formidable foe.
* MoreDakka: Carries a gatling gun. Can drop the chain gun which is ''faster''
* SkullForAHead: Damage it enough and its face is revealed to be similar to that of Skeletron Prime.


[[folder: Ice Queen ]]

A large, floating feminine figure that appears to be made of ice. She appears on Wave 11 on the Frost Moon and is considered to be the boss of the event.
* AnIcePerson: Quite literally by the looks of it. As well as the fact that almost all attacks she has mainly consist of spewing shards and waves of ice at her opponents.
* AuthorityEqualsAsskicking: She's an ice ''queen'' and she is an utter nightmare to face. As well as the fact that she is the deadliest enemy on the Frost Moon.
* DarkActionGirl: When she appears it's a ThisIsGonnaSuck moment for some players as she is no slouch in her objective to put you down, sometimes succeeding as well. Even exceptional ''Terraria'' players sometimes find her a bit of a handful.
* EverythingsBetterWithSpinning: Can spin around to fire out a huge storm of shards.
* FlechetteStorm: Fires out loads of ice projectiles.
* GetBackHereBoss: The Ice Queen spends much of her time just offscreen using ranged attacks against you, occasionally swooping overhead before flying off again. She's only stationary for her icicle attack, which is fired in every direction.
* GodSaveUsFromTheQueen: She's presumably a queen of sorts, and is an incredibly nasty enemy and the boss of the Frost Moon.
* LightningBruiser: The Ice Queen's power is surpassed only by how ''insanely'' fast she is. She also has more health than Plantera!
* PowerFloats: Constantly floats around the area, making it very annoying to hit her.
* StandardStatusEffects: Can cause you to get chilled or even frozen.
* TacticalSuicideBoss: The Ice Queen is usually moving extremely fast, out of range from your attacks. However, once in a while she stops to throw you ice shards, giving you a chance to attack her.
%%* WinterRoyalLady