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

Given the loads of [=NPCs=], monsters, and bosses. It's no doubt that there's a character list for this game. This page also NeedsWikiMagicLove.

[[foldercontrol]]

[[folder:The Player]]

The nameless player starts off with a copper short sword, a copper pickaxe, and a copper axe, along with a carrot to summon a bunny if they bought the collector's edition. The player can also be joined by others in multiplayer.
----
* {{Badass}}: Over the course of the game you will run into various [[EldritchAbomination unspeakable horrors]], and if you are armed and prepared enough, you can [[DidYouJustPunchOutCthulhu KILL]] said horrors in combat. [[UpToEleven Then you get even stronger and start FARMING them]].
* CurbStompBattle: Is a practitioner of this. Regardless of play class, if you can't find an enemy that is able to keep up with you in [[LightningBruiser speed, strength]] [[MightyGlacier or power]] then chances are the fight is going to be over with either little to no damage taken and the enemy ''utterly obliterated''.
* DidYouJustPunchOutCthulhu: Many of the bosses the player character fights are {{Eldritch Abomination}}s. By the end of the game, he/she beats [[spoiler: the Moon Lord, who looks pretty much like Cthulhu himself and is his brother.]]
* FeaturelessProtagonist: The game sports a numerous amount of customizations for your character, meaning that you can add your own personal touch to the character so it looks the way you want it to. And it's played straight in all of the NPC dialogue; the only feature [=NPCs=] will ever comment on is whether you're a boy or a girl, and even then only sometimes.
* 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 finds themselves facing a lot of enemies in their journey, and provided he has the skill, equipment and health, can mow them all down ''en masse.'' Heck, the player even takes on whole armies in the various wave events and if you are ready for them, [[UpToEleven then you can turn the attack into]] [[CurbStompBattle a massacre for the invading army.]]
* PersonOfMassDestruction: Regardless in one way or another, the player will cause a lot of destruction on their travels.

[[/folder]]

!! 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, Wizard, and Steampunker 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]].
[[/folder]]

[[folder:The Guide]]
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.
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* TheScrappy: Invoked. He got hate from the beginning for appearing in every world, being unkillable, and subject to mass ArtificialStupidity. At this point he's even become the scrappy ''in-game'', with other [=NPCs=] occasionally making comments about how much they hate him.
* TheSmartGuy: If you give him a crafting material, he can tell you everything you can make with it and the recipe to make them. He will also tell you your next general objective.
* TheStraightAndArrowPath: Uses a Wooden Bow to defend himself if forced into combat.
* VoodooDoll: First hinted at by the Arms Dealer before they are found being carried by voodoo demons in the underworld. Equipping it as an accessory allows you to actively harm the guide with whatever weapon you had and throwing it into lava also vaporized the guide with it. [[spoiler: Should it be thrown into lava in the underworld, then it summons the Wall of Flesh.]]
[[/folder]]

[[folder:Merchant]]
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.
[[/folder]]

[[folder:Nurse]]
The nurse will move in once a player has found a heart crystal to expand their maximum health above the starting 100. She can heal the player the player 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 of a sarcastic prick, 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.
[[/folder]]

[[folder:Painter]]
He's a painter, dressed in a red cap and white overalls. He sells everything you need to paint your world, as well as a number of decorative paintings, particularly landscapes.
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* AbnormalAmmo: Uses a Paintball Gun in self-defense.
* ShoutOut: Makes several references to other painters, particularly [[Series/TheJoyOfPainting Bob Ross]].
[[/folder]]

[[folder:Dye Trader]]
The dye trader moves in when you have found any item that can be used to make dyes. He sells the dye vat along with brown and silver dyes, and in exchange for Strange Plants he will give you animated and/or highly colorful dyes.
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* 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.
* SinisterScimitar: The weapon he uses to fight is explicitly called "Exotic Scimitar"
[[/folder]]

[[folder:Demolitionist]]
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.
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* 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 specialty.
* YourAnswerToEverything: Got a problem, ''any'' problem? Easy - blow it up.
[[/folder]]

[[folder:Angler]]
An NPC introduced in 1.2.4 sleeping in the ocean. He gives out rewards upon giving him a specific fish.
----
* BrattyHalfPint: The only child NPC in the game, and 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.
* NonStandardCharacterDesign: So far the only NPC that is shorter than everybody else, due to being a child.
* 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.
[[/folder]]

[[folder:Stylist]]
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.
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* 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 Sweeney Todd 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.
* DiegeticInterface: Many of her hair dyes can be used as ''Franchise/DeadSpace''-style indicators such as life, mana, depth, biome, team, time, etc.
* 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, unshapen 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.
* 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.
* ShearMenace: Uses Stylish Scissors when forced to fight monsters.
* SeriousBusiness: Bad hair days. She may mention a disasterous 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]]

[[folder:Party Girl]]
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.
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* 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 [[AbnormalAmmo Confetti Guns]] and [[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.
* 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. And she can have names such as Sparkle and Trixie.
* WhereTheHellIsSpringfield: According to her, the world of Terraria is somewhere on Earth - she mentions that she's been to Sweden.
[[/folder]]

[[folder:Dryad]]
A nature spirit will move in if you have defeated at least one Pre-Hardmode boss, with several exceptions such as King Slime or the Wall of Flesh. She can tell how corrupt/crimson or hallow the world is and sells various natural materials like acorns and seeds.
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* 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 regen, 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.
* NatureSpirit
* 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]]."
* {{Stripperiffic}}: Those vines don't cover a lot of skin.
* 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]]

[[folder:Arms Dealer]]
He moves in after you find a gun. He sells guns and bullets.
----
* 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 that 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.
[[/folder]]

[[folder:Goblin Tinkerer]]
After a goblin invasion, he can be found underground. He can reforge items and sells various gizmos as well as the tinkerer's workshop.
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* AllYourPowersCombined: Sells a workbench that allows you to combine certain sets of accessories together.
* 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...
* 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.
* WillTheyOrWontThey: Toward the Mechanic.
[[/folder]]

[[folder:Witch Doctor]]
The witch doctor moves in after defeating the Queen Bee. She/He sells the imbuing station and various tribal-themed accessories and items.
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* 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 and wait for the King to teleport him.
* AmbiguouslyHuman: He may or may not be a [[LizardFolk Lihzahrd]].
* BlowGun: His WeaponOfChoice.
* WitchDoctor
[[/folder]]

[[folder:Clothier]]
Formely a slave of Skeletron who could be found wandering outside of the dungeon, he moves in once his master has been slain, selling clothes.
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* BadPowersGoodPeople: From 1.3 onward, he will fend off invading monsters by launching magical skulls at them.
* 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.
* ShoutOut: Nearly every line he says is a reference to a Creator/TomHanks movie.
* SpellBook: Uses the Book of Skulls to attack monsters.
* 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.
[[/folder]]

[[folder:Mechanic]]
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 wrenches in self defense.
[[/folder]]

[[folder:Wizard]]
Once the world is in hardmode, he can appear underground, [[DistressedDude bound]]. He sells the materials to make a variety of magical weapons.
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* 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
* ShoutOut: "Someone once told me '[[WesternAnimation/MyLittlePonyFriendshipIsMagic friendship is magic]]'. [[TakeThat That's ridiculous]], you can't turn people into frogs with friendship!"
[[/folder]]

[[folder:Truffle]]
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.
* 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 "[[TheGoonies Truffle Shuffle]]", so stop asking.
* WhatTheHellPlayer: He calls you out for "stealing his children."
[[/folder]]

[[folder:Pirate]]
The pirate moves in after defeating the Pirate Invasion and sells cannons primarily, and some other things.
----
* AbnormalAmmo: Fights with a Coin Gun.
* 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.
[[/folder]]

[[folder:Santa Claus]]
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: The Snowball Cannon
* 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 gorey explosion as soon as the new year hits.
[[/folder]]

[[folder:Steampunker]]
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.
* SkyPirates: She may mention that she's beginning to consider becoming one.
* SteamPunk
* WrenchWench: This girl is extremely tech savvy, building and selling some of the most high end machinery in the game like jetpacks and teleporters; occasionally expressing curiosity about the workings of the Cyborg.
[[/folder]]

[[folder:Cyborg]]
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.
* {{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]]

[[folder:Tax Collector]]
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.
** 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.)
[[/folder]]

[[folder:Traveling Merchant]]
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.
* KatanasAreJustBetter: One of the possible items that can be bought.
* 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.
* TheStraightAndArrowPath: When Hardmode comes along, he switches out his Revolver for a [[EnergyBow Pulse Bow]] to attack enemies with.
[[/folder]]

[[folder: Skeleton Merchant]]
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 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.
* NiceHat: Wears a large black hat.
* ShoutOut: Several of his names are shout outs to other skeleton or advertiser characters.
[[/folder]]

[[folder:Critters]]
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 TheCorruption 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.
* 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]]

!!Bosses

[[folder:The Eye of Cthulhu]]
[[quoteright:134:http://static.tvtropes.org/pmwiki/pub/images/eye_of_cthulhu.PNG]]
[[caption-width-right:134: I've got my eye on you...]]
The very first boss fought. It's a giant eye.
----
* EldritchAbomination: Well, at least the eye of one.
* FlunkyBoss: For the first phase, it shoots weaker Demon Eyes 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.
* 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.
[[/folder]]

[[folder:The Eater of Worlds]]
[[quoteright:304:http://static.tvtropes.org/pmwiki/pub/images/eater_of_worlds.PNG]]
[[caption-width-right:304: [[Machinima/PainisCupcake I will eat you!]]]]
A giant worm and typically the second boss of the game in a Corruption world.
----
* AsteroidsMonster: If you destroy a segment other than the head or tail, and there are two are more segments ahead or behind the segment that you destroy, then 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.
* SandWorm: Well, Corruption Worm. Plays this straight if summoned in a corrupted desert.
* 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.
[[/folder]]

[[folder:Brain of Cthulhu]]
[[quoteright:215:http://static.tvtropes.org/pmwiki/pub/images/brain_of_cthulhu.PNG]]
[[caption-width-right:215:[[VideoGame/StarFox64 Only I have the brains to rule Lylat!]]]]
A giant brain. It is the typically the second boss fought in a Crimson worlrd.
----
* 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 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.
[[/folder]]

[[folder:King Slime]]
[[quoteright:177:http://static.tvtropes.org/pmwiki/pub/images/king_slime.PNG]]
King Slime is a [[CaptainObvious Giant Slime with a crown]]. It is a side boss that can be fought at any time.
----
* AndYourRewardIsClothes: You beat it? Enjoy your random part 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. And 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 ''Franchise/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, so it cannot be trapped anymore.
[[/folder]]

[[folder:Queen Bee]]
[[quoteright:173:http://static.tvtropes.org/pmwiki/pub/images/queen_bee.PNG]]
[[caption-width-right:173:[[Film/TheWickerMan NOT THE BEES!]] '''[[MemeticMutation AAAAAAH NOT THE BEES!]]''']]
A giant bee. Its larvae spawn inside bee hives and can be fought if broken. Is a sideboss and can be fought at any time.
----
* 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.
* 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.
* TurnsRed: Only on Expert. Her attack pattern gets faster and more frequent as she loses health.
[[/folder]]

[[folder:Skeletron]]
[[quoteright:100:http://static.tvtropes.org/pmwiki/pub/images/skeletron.PNG]]
[[caption-width-right:100:[[WesternAnimation/TheSkeletonDance Spooky scary skeletons, sending shivers down your spine...]]]]
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. In Expert, you're required to destroy them, otherwise his head has exceptionally high defense.
* 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 killed off one of his hands.
* 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]]

[[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 could accidentally grant access to the dungeon if killed. Delving too deep 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.
* ForMassiveDamage: Does 1000 damage on contact, double the max life a player can possess, and impossible to tank without a specific set of gear.
* 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.
* LostForever: Vanishes once Skeletron is defeated, so get your Bone Key before you open the dungeon.
* 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), [[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. If it catches you, you're dead.
* RammingAlwaysWorks: It will crash into you at high speed and make you explode into gibs on impact.
* 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]]

[[folder:Wall of Flesh]]
[[quoteright:123:http://static.tvtropes.org/pmwiki/pub/images/wall_of_flesh.PNG]]
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.
* 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.
* LivingStructureMonster: The Wall of Flesh is ExactlyWhatItSaysOnTheTin - a massive, moving wall with eyes and a mouth.
* LoadBearingBoss: Its death infects the world with large swathes of ever-expanding hallow and corruption.
* 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.
* 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]]

[[folder:The Destroyer]]
[[quoteright:312:http://static.tvtropes.org/pmwiki/pub/images/destroyer.PNG]]
Possibly the first of the hard mode bosses faced, it's 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.
* DamageSpongeBoss: Has more HP than any other non-composite entity opponent in the entire game, but since all of his 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.
* 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]]

[[folder:The Twins]]
[[quoteleft:171:http://static.tvtropes.org/pmwiki/pub/images/retinazer.PNG]]
[[quoteright:168:http://static.tvtropes.org/pmwiki/pub/images/spazmatism.PNG]]
A mechanical version of the Eye of Cthulhu, [[DualBoss except there are two of them]], [[EyeBeams Retinazer]] and Spazmatism.
----
* BreathWeapon: Spazmatism will spew a constant stream of Cursed Flames in his second phase, though at least their range is limited.
* BeamSpam: The lower Retinazer's health is in the second phase, the more it does so.
* 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 ''18'' 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.
* 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.
* TimeLimitBoss: The two will run away at dawn.
* TurnsRed: Their second forms, but Retinazer has a particularly noteworthy one; the lower its health gets during its second phase, the faster it fires the laser cannon, especially in its BeamSpam.
[[/folder]]

[[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 their own.
* DemBones: Mechanical ones this time.
* EverythingsBetterWithSpinning: Unlike Skeletron, Prime benefits from spinning as his defense actually ''increases'' instead of decreasing when he does so.
* FrickinLaserBeams: The Prime Laser arm.
* MarathonBoss: With his 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 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.
* PowerPincers: The Prime Vice arm.
* ThrowDownTheBomblet: The Prime Cannon arm.
* TimeLimitBoss: Like Skeletron, Prime has a Dungeon Guardian form and will kill you at dawn.
[[/folder]]

[[folder:Ocram]]

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.
* BulletHell: 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.
* 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=].
* TurnsRed: His second form turns out his eyes, reveals a bigger eye, and also amps up the power of his BeamSpam attack.
[[/folder]]

[[folder:Plantera]]
A giant plant-like monster fought after the Mechanical bosses when in hardmode.
----
* CombatTentacles: Its invulnerable grappling hooks can deal damage, and it sprouts a bunch of smaller, destructible ones when it TurnsRed. In Expert Mode, his 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.
* 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.
* SpikeBallsOfDoom: Spits these out in its first phase.
* SpikeShooter: First phase uses these.
* TurnsRed: At half health, the flower will drop off, sprout tentacle plants, and it'll become much faster and damaging.
[[/folder]]

[[folder:Golem]]
A giant statue. Summoned by using a Lihzard Power Cell.
----
* 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.
* PowerOfTheSun: Many of the Golem's drops are associated with daytime and the sun,
* OutsideTheBoxTactic:
** The Golem used to be unable descend wooden platforms, and it spawns by dropping down from the ceiling. Setting up a barrier can prevent you from having to take CollisionDamage entirely. This has been fixed as of 1.2.3.
** It's still 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.
* 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]]

[[folder:Duke Fishron]]
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, it 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.
* ImplacableMan: Got buffed in 1.3--he will ''repeatedly'' charge at you if you exit the ocean, instead of charging five times then attacking.
* 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.
* 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.
* 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]]

[[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.
* 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.
* 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]]

[[folder:The Celestial Towers (Vortex, Nebula, Solar, and Stardust Pillar) ]]
Four ominous pillars that appear after the Cultist Lord 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.
* EldritchAbomination: All four of the pillars are some kind of otherworldly aliens.
* 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.
* 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.
* StarPower: Of the Lovecraftian sort. The Stardust Pillar is able to create "stars" around it that spawn Star Cells and Milkyway Weavers.
* ShockAndAwe: The portals created by the Vortex Pillar can sometimes shoot a bolt of lightning at you, instead of spawning more {{Mooks}}.
* StationaryBoss: They don't move at all, and none of them apart from the Solar Pillar are directly capable of attacking you.
[[/folder]]

[[folder: The Moon Lord]]
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.
----
* 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.
* 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.
* 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.
* FinalBoss: Is this for the entire game.
* FlunkyBoss: When each eye is beaten, they will become an invincible flunky that attacks on its own.
* 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.
* PowerFloats: Floats around the area effortlessly.
* NoSell:
** He's immune to lifestealing effects from the Spectre Armor and the Vampire Knives when he's leeching energy from you.
** As of 1.3.0.6, 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.
* SequentialBoss: His three main eyes must be destroyed first, then his core will open.
* SuperPersistentPredator: Will chase the players across the map. 1.3.0.4 made it such that he just teleports right to you if you get too far from it.
* StandardStatusEffects: Moon Bite is of the Decover type, preventing LifeDrain effects from working on him.
* StrippedToTheBone: When beaten, his skeleton drops to the ground.
* WaveMotionGun: Can fire one of these 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 1.3.0.4 update made it such that he teleports right to you if you get too far from him.
[[/folder]]


!! Enemies

%%[[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.
%%----

%%[[/folder]]

[[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]]

[[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
* ShoutOut: It may be a reference to the zombie groomsman in ''Film/ShaunOfTheDead''.
[[/folder]]

%%[[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.
%%----

%%[[/folder]]

[[folder:Clown]]
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]]

[[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]]

[[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.
[[/folder]]

[[folder:Wyvern]]
The Wyvern sometimes appears in high altitudes in Hardmode.
----
* BossInMookClothing
* 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 the Stardust Dragon.
* 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.
[[/folder]]

[[folder:Lost Girl/The 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.
* 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.
* HornyDevils: Mentioned above, she's naked and fairly attractive. Until she turns that is...
* SchmuckBait: Hey, it's another NPC. I'll just go up and -- Why am I dead?
* {{Stripperiffic}}: To the extreme. She wears absolutely nothing.
[[/folder]]

[[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.
[[/folder]]

[[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]]

[[folder:Skeletons]]
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 (see above) and [[Film/MontyPythonAndTheHolyGrail Tim]] (also see above). Skeletron (see above) 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 (once again, see above in bosses).
----
* 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]]

[[folder:Slimes]]
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]] (see above), [[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]] (see above). 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 availabke before hardmode and it drops dozens of Pink Gel in contrast to its size.
* 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]]

[[folder: The Corruption]]
Once you start exploring TheCorruption, 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 can fly around easily.
* TheCorruption: An evil, spreading biome that corrupts the land and turns critters into twisted, stronger versions of themselves.
* 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 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.
* 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.
* FlyingWeapon: [[DropTheHammer The Cursed Hammer]]. A flying 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.
* 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.
[[/folder]]

[[folder: The Crimson]]
The Crimson biome appears as an alternative to the regular black Corruption, a land of rotting flesh and bodily fluids. Their lands resemble alien insect tunnels 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, a giant ant which crawls along the walls to get you; and Blood Feeder, which are monstrous fish. Hard mode enemies include the Crimslime; the Floaty Gross; the Herpling and the Ichor Sticker.
----
* 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: Everything about these guys just screams eldritch flesh monsters. 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 [[{{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.]]
* TheCorruption: An alternative to the usual black-and-purple one.
* EvilIsVisceral: An evil place with a flesh, blood and gore theme.
* 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.
* 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.
* ThemeNaming: Many of the Crimson creatures and related items begin with "Crim".
* StandardStatusEffects: Ichor Stickers inflict Ichor ([[DamageIncreasingDebuff lowers defence by 20]]), while the Floaty Gross inflicts Weakness.
[[/folder]]

[[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.
* 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: The Chaos Elementals.

[[/folder]]

!! Events
%% [[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.
%% [[/folder]]

%% [[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.
%% [[/folder]]

[[folder: Goblin Army]]
Once the player has over 200 health and has defeated the Eater of Worlds, 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.
* 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.
* SquishyWizard: Sorcerers--they're commonly offed with a single hit. Subverted with Summoners, who have much more health than the rest.
* TeleportSpam: Sorcerers, the Goblin Summoner takes this UpToEleven.
[[/folder]]

[[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, 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]]

[[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.
* MonsterMash: Loads of classical and horror movie monsters spawn during this event.
* ShoutOut: All the monsters 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]]
[[/folder]]

[[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.
* 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.
* 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.
[[/folder]]

[[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.
----
* 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 by the bosses.

[[foldercontrol]]

[[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.
* WhenTreesAttack: A dead, burning tree that tries to kill you.

[[/folder]]

[[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
* 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.
[[/folder]]

[[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]]

[[folder: Everscream ]]


An animated Christmas tree that first appears on Wave 4 of the Frost Moon.
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* 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]]

[[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.
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* 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]]

[[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.
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* 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.
%%* WinterRoyalLady
[[/folder]]