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Bosses are large, aggressive, resilient enemies that offer a substantial challenge to players. Defeating bosses is usually instrumental in advancing the game in some way. Each has its own particular way of being summoned, and warning messages appear whenever one is about to appear. Defeating a boss concludes with a congratulatory message and several items. Most of the bosses can pass through blocks, with exception of King Slime,Template:Mobile icon Lepus, Template:Mobile icon Turkor the Ungrateful's body, and Golem.

During Hardmode, each night has a one in ten chance of spawning one of the three Mechanical Bosses that have not yet been defeated in the current world.

As of all bosses have a unique icon on the map, which they now appear on, as well as all PC bosses having increased amounts of health and damage in expert mode.

Pre-Hardmode Bosses

These are the first bosses the player can encounter. Usually, defeating one of these bosses will give the player items and materials necessary to progress in the game, eventually leading to Hardmode.

King Slime

King Slime.png
King Slime Trophy.png
Slime Crown.png
For strategies on defeating the King Slime, see Guide:King Slime strategies.

King Slime is a giant blue slime with 2000 health. It is summoned with a Slime Crown, and can also rarely appear in the outer thirds of the map completely by itself. As with all monsters that can spawn naturally, the King Slime has a better chance of spawning while standing near a placed Water Candle, under the effects of a Battle Potion or after killing 150 slime during a Slime Rain. King Slime is a good challenge for a beginning player, and can be easily defeated by tactical use of terrain.

In the PC version, King Slime gains the ability to shrink to nothing and re-appear directly on top of the Player.

King Slime does not provide access to game-advancing items upon defeat, but outside Expert Mode will drop one Gold Coin, one piece of Ninja clothes, and one of several slime-related items.

In Expert Mode, the King Slime has much more health and can summon Spiked Slimes, that are similar to the Spiked Jungle Slime and Spiked Ice Slime.

Eye of Cthulhu

Eye of Cthulhu Trophy.png
Suspicious Looking Eye.png
For strategies on defeating the Eye of Cthulhu, see Guide:Eye of Cthulhu strategies.

Eye of Cthulhu has a 1 in 3 chance of spawning at the beginning of each night, once the player has 200 HP or more, 3 or more NPCs living in houses, and over 10 Defense. It will continue to do so until defeated for the first time. It can also be summoned using a Suspicious Looking Eye at night. This is generally the first boss a player must face. It travels through blocks, and spawns Servants of Cthulhu.

In Expert Mode, the Eye of Cthulhu will do a fast chain dash in its second phase, using the attack more often the lower health it has. This can lead to it dashing almost continually at very low health, making it especially difficult for players in the early game to finish it off.

Eater of Worlds

Eater of Worlds.png
Eater of Worlds Trophy.png
Worm Food.png
For strategies on defeating the Eater of Worlds, see Guide:Eater of Worlds strategies.

Eater of Worlds will appear after every third Shadow Orb is broken or after Worm Food is used. These orbs are found in the Corruption chasms, surrounded by Ebonstone, which requires a Pickaxe with 65% power or higher to mine, although explosives or Purification Powder can be used to bypass this. Once within range, shadow orbs can be destroyed with a Hammer. Eater of Worlds can also be summoned with the Worm Food. Eater of Worlds can only be summoned in the corruption, and if it manages to escape the corruption, it will flee and disappear.

Eater of Worlds can be a challenge even for intermediate players, as it is a large worm-type enemy that travels through tiles, and is made up of multiple sections that can each attack separately (with separate heads, no less) when they are cut off. To defeat this boss, every section must be brought down to less than two body parts to be killed (the smallest possible section is a head and a tail with no body pieces). Due to how helpful corrupted items are, this will probably be the second boss faced in worlds that have corruption, rather than Crimson.

Eater of Worlds is the only source of Shadow Scales in the game, and drops a large amount of Demonite Ore, which can also be sold for over 7/stack, making this technically the best pre-hardmode boss for farming in the game.

Brain of Cthulhu

Brain of Cthulhu.gif
Brain of Cthulhu Trophy.png
Bloody Spine.png
For strategies on defeating Brain of Cthulhu, see Guide:Brain of Cthulhu strategies.

Brain of Cthulhu will appear after every third Crimson Heart is broken. These hearts are found in the Crimson's chasms, surrounded by Crimstone, which can be bypassed with the same methods Ebonstone can. However, some of the pockets containing these will generate open. Once within range, Crimson Hearts can be destroyed with a Hammer or any tile-breaking explosive. Brain of Cthulhu can also be summoned with a Bloody Spine. It can only be summoned in the Crimson and can be at anytime of day.

Brain of Cthulhu has only 1,000 HP but has two forms. In the first form, the brain cannot be harmed and Creepers will float around it. After these are killed the brain will go into its second form, where it will teleport more frantically and move a lot faster, so a ranged weapon may be needed. The Brain of Cthulhu's second attack form is ramming, alike the second form of Eye of Cthulhu. Unlike most other bosses, the Brain of Cthulhu is not immune to knockback.

In Expert Mode, the Brain of Cthulhu will have more health and in it's second phase start creating illusions of itself to charge at the player. The lower the Brain of Cthulhu's HP gets, the illusions become much less obvious to the point where they will look exactly like the Brain of Cthulhu.

Brain of Cthulhu is the only source of Tissue Samples in the game (Other than the creepers spawned while fighting it), and drops a large amount of Crimtane Ore, which are their equivalents to the corruption items.

Queen Bee

Queen Bee.png
Queen Bee Trophy.png
For strategies on defeating Queen Bee, see Guide:Queen Bee strategies.

Queen Bee is summoned by destroying the Queen Bee's offspring encased in honey in the beehive structure, located in the underground jungle, or by the use of an Abeemination anywhere in the jungle. It is the only source of Bee Wax, except on the console. Queen Bee is immune to knockback.


Skeletron Head.png
Skeletron Trophy.png
Clothier Voodoo Doll.png
For strategies on defeating Skeletron, see Guide:Skeletron strategies.

Skeletron is summoned by speaking to the Old Man and activating his curse at the entrance of the Dungeon at night. Skeletron will alternate between attacking the player with its hands, and performing a spinning attack. Its hands can be attacked and defeated to make the battle easier, although this is not required. If it has not been defeated before the night is over, Skeletron will attack and kill the player in one hit.

Defeating Skeletron will stop the Dungeon Guardians from spawning, allowing free access to the Dungeon. It can be summoned again by killing the Clothier with the Clothier Voodoo Doll equipped at night.

Wall of Flesh

Wall of Flesh.png
Wall of Flesh Trophy.png
Guide Voodoo Doll.png
For strategies on defeating the Wall of Flesh, see Guide:Wall of Flesh strategies.

The Wall of Flesh is summoned by throwing the Guide Voodoo Doll into a pool of lava in the Underworld while the Guide is alive. It is known by most players as the hardest pre-Hardmode boss, at 8,000 health, and defeating it will irreversibly enable Hardmode in that given world. Its defeat will also allow the creation of the summoning items for various Hardmode bosses.

It can drop several powerful items, one of them being the guaranteed drop Pwnhammer which can be used to break Demon Altars in order to spawn Hardmode Ores.

Hardmode Bosses

Hardmode Bosses are significantly harder upgrades of and new additions to previous bosses. Defeating them is usually instrumental in advancing the game in some way. Each has its own particular way of being summoned, and warning messages appear whenever one is about to appear. Defeating a boss concludes with a congratulatory message and several items.

During Hardmode, each night has a one in two chance of spawning one of the three Mechanical Bosses that have not yet been defeated in the current world. This only happens after removing at least one Altar from the world, so it may be advisable to refrain from doing so if the player is not ready for a challenging fight.

The Twins

File:Twins Boss.gif
Retinazer Trophy.png
Spazmatism Trophy.png
Mechanical Eye.png
For strategies on defeating The Twins, see Guide:The Twins strategies.

The Twins are the Hardmode version of the Eye of Cthulhu. They spawn as two eyes, one with 20,000 HP (Retinazer) and one with 23,000 HP (Spazmatism). Unlike the Eye of Cthulhu, they do not immediately transform at half health - Retinazer transforms at 8,000 HP and Spazmatism transforms at 9,000 HP. The Twins are summoned by using a Mechanical Eye at night. It is worth noting that The Twins will gain defense in their second forms, unlike the Eye of Cthulhu.

The two eyes have different fighting styles. Spazmatism focuses on slamming into the player and firing cursed flames. Once it reaches its second form, it will resemble a mechanical version of the Eye of Cthulhu's second form. It will deal a lot more damage, and the flames it shoots are more consistent like the Flamethrower instead of the Cursed Flames, but the flames will still inflict Cursed Inferno debuff on the player.

The other eye, Retinazer, focuses on shooting the player with Death Lasers like the Destroyer's Probes. Once it reaches its second form, it will replace its pupil with a laser cannon. During this form, it will shoot lasers extremely fast, sometimes having the same fire rate as a Megashark. The last Twin destroyed will drop all of the loot.

The Destroyer

The Destroyer.png
Destroyer Trophy.png
Mechanical Worm.png
For strategies on defeating The Destroyer, see Guide:The Destroyer strategies.

The Destroyer is the Hardmode version of the Eater of Worlds (also with some Brain of Cthulhu features), with 80,000 HP. It is considered the easiest hardmode boss by many players, despite having the most health. Although it is similar to its Pre-Hardmode counterpart, it has some key differences: it won't divide into smaller segments, will shoot lasers from its body if space is available, and will deploy Probes to attack. The Destroyer is summoned by crafting and using a Mechanical Worm anywhere, but can only be spawned at night. The Destroyer will shoot Death Lasers, increasing in attack speed as it loses HP. Weapons that do damage to multiple segments like Flails, Water Bolt, and the Demon Scythe are recommended, because they will hit multiple sections of The Destroyer at once.

Skeletron Prime

Skeletron Prime.png
Skeletron Prime Trophy.png
Mechanical Skull.png
For strategies on defeating Skeletron Prime, see Guide:Skeletron Prime strategies.

Skeletron Prime is a far more difficult Hardmode version of Skeletron, with the head alone having 28,000 HP. Instead of two hands, it has a vice, laser gun, saw, and cannon. With the head and all limbs combined, Skeletron Prime has 59,000 HP. However, like Skeletron, only the head has to be defeated. Skeletron Prime can be summoned as many times per world as needed, by crafting and using a Mechanical Skull, but can only be summoned at night. It is worth noting that when his head spins, his Defense increases, unlike Skeletron, whose Defense is dropped to 0 when spinning.

He will drop Hallowed Bars and Souls of Fright, which are both used to craft many kinds of armor and tools. Be warned that when Skeletron Prime is still alive during morning (4:30 AM to 7:30 PM), it will spin rapidly, and deal enough damage to kill the player in one hit, despawning afterwards.


Plantera's First Form.png
Plantera Trophy.png
Plantera's Bulb.png
For strategies on defeating Plantera, see Guide:Plantera strategies.

Plantera is summoned prior to version 1.2.3 (and in the current console version) by destroying a Plantera's Bulb, which is found in the Underground Jungle after defeating all three mechanical bosses. (Only one on the Template:Console icon Template:Mobile icon Console/Mobile versions) Plantera has two stages: In the first stage Plantera clings to solid blocks using vine-like extensions. In this stage Plantera fires spiky projectiles much like Spiky Balls. In the second stage Plantera has increased speed and charges at the player. Once Plantera is defeated, the dungeon will automatically spawn hardmode monsters, such as the Paladin.


Golem Trophy.png
Lihzahrd Power Cell.png
For strategies on defeating Golem, see Guide:Golem strategies.

The Golem is summoned by using a Lihzahrd Power Cell at the Lihzahrd Altar in the Jungle Temple. In order to access the Jungle Temple, Plantera must be defeated to obtain the Temple Key.

Golem has two phases. During the first phase, its two fists and its head can be attacked. Like Skeletron, destroying the fists is not needed, but can be helpful. Once the head's health is depleted, it begins flying above the body while shooting fireballs and eye beams, leaving the body open to attack. The body will jump around and punch madly in this phase. Defeating the body will defeat Golem.

Duke Fishron Template:Pc icon

Duke Fishron.png
Duke Fishron Trophy.png
Truffle Worm.png
For strategies on defeating Duke Fishron, see Guide:Duke Fishron strategies.

Duke Fishron is a fish-pig-dragon hybrid with 50,000 health and 50 defense. It is summoned when a Truffle Worm is used as bait with a higher-powered fishing rod in an Ocean biome.

In its first stage, Duke Fishron will attempt to ram the player 5 times before either firing explosive bubbles or summoning Sharknados. In its second stage, Duke Fishron gains glowing eyes and a boost to attack and defense (needs confirmation.) Although its ramming attacks remain the same, instead of shooting bubbles directly at the player, it flies quickly around in circles, sending bubbles everywhere. Instead of summoning Sharknados in this stage, Duke Fishron summons larger Cthulhunados. These remain in place until Duke Fishron is defeated. Duke Fishron is said to be the hardest boss except to Moon Lord final boss, but the battle becomes much easier when the player has Wings equipped.

Lunatic Cultist Template:Pc icon

Lunatic Cultist.png
Lunatic Cultist Trophy.png
Mysterious Tablet.png
For strategies on defeating Lunatic Cultist, see Guide:Lunatic Cultist strategies.

The Lunatic Cultist is summoned by killing the four cultists which spawn outside of the dungeon when The Golem is defeated. When the Cultist is defeated the Lunar Events begin.

While the Lunatic Cultist has only one stage, its attacks become more powerful as it looses health. The Lunatic Cultist flies around randomly cycling between shooting fireballs, creating a ball which shoots lighting in a circle, shooting a giant snowflake which shoots ice shards at the player, shooting shadowflames, and shooting five destructible projectiles twice in a row. The Lunatic Cultist also often will create copies of itself and attempt to summon a Phantasm Dragon. If the Phantasm Dragon is still alive, it will summon an Ancient Vision instead. Attacking a duplicate or waiting too long to attack the real Lunatic Cultist will cause the Phantasm Dragon or Ancient Vision to be summoned.

Moon Lord Template:Pc icon

Moon Lord.png
Moon Lord Trophy.png
Celestial Sigil.png
For strategies on defeating Moon Lord, see Guide:Moon Lord strategies.

The Moon Lord is the final boss of Terraria as of version and drops most of the end-game items. He is summoned by defeating all four pillars of the Lunar Event.

The Moon Lord has two hands and a head which must be killed by attacking the eyes on them. When the three eyes are destroyed the Moon Lord's core opens up on his chest which then must be destroyed. The hands shoot two projectiles at once which home onto the player and will summon phantom versions of the True Eye of Cthulhu and throw them at the player.

The head will occasionally release a very powerful Phantasm Death Ray which partly sweep across the screen in the player's direction and will then shoot several homing projectiles much like the hands. When an eye is destroyed a True Eye of Cthulhu will be created which will pursue the player, summon phantom versions of itself which orbits itself and will throw them at the player, and occasionally create a smaller version of the Phantasm Death Ray. After all three eyes are defeated, the Moon Lord's core becomes vulnerable. When the core is killed, Moon Lord is defeated.

Event Bosses

Mourning Wood

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Mourning Wood Trophy.png
Pumpkin Moon Medallion.png

Mourning Wood is a mini-boss that spawns during the Pumpkin Moon. Like many other bosses, it has the ability to move through necessary blocks. It shoots flaming projectiles, some of which pass through blocks.


Pumpking Full Body.png
Pumpking Trophy.png
Pumpkin Moon Medallion.png

Pumpking is also found later in the Pumpkin Moon event. Multiple Pumpkings can be out at the same time, up to six at the final fifteenth wave (or even more in multiplayer). It has three modes of attack, indicated by the face carved in the pumpkin it uses as a head.

Everscream Template:Pc icon Template:Console icon

Everscream Trophy.png
Naughty Present.png

Everscream can be found during the Frost Moon and acts much like the Mourning Wood. The biggest difference is that its projectiles can NOT go through blocks.

Santa-NK1 Template:Pc icon Template:Console icon

Santa-NK1 Trophy.png
Naughty Present.png

Santa-NK1 appears during the Frost Moon event. Some of its attacks go through blocks.

Ice Queen Template:Pc icon Template:Console icon

Ice Queen.png
Ice Queen Trophy.png
Naughty Present.png

Ice Queen is the third and final boss that appears in the Frost Moon. She has three alternate attacks. She drops items like the Baby Grinch Mischief's Whistle, Reindeer Bells and also endgame weapons for each class.

Flying Dutchman Template:Pc icon

Flying Dutchman.png
Flying Dutchman Trophy.png
Pirate Map.png

Flying Dutchman is the boss of the Pirate Invasion. It will initially spawn after 65% of the invasion is completed.

It has four cannons that must be destroyed before it can die. The Flying Dutchman does not disappear after the invasion is over, but it will explode if it has not been engaged before said ending occurs. Several Flying Dutchmen can appear at once.

Martian Saucer Template:Pc icon

Martian Saucer.png
Martian Saucer Trophy.png
Martian Probe.png

Martian Saucer is a large flying boss that spawns during the Martian Madness event.

The Martian Saucer moves through blocks, and has four turrets with independent health meters that must each be destroyed before damaging the saucer itself becomes possible. The turrets include two rocket launchers and two laser machine guns. In addition, the saucer itself fires a large beam ("death ray") that can only fire directly downward, and which cannot be destroyed independently. The player can damage the core only if all four turrets have been destroyed.

Solar Pillar Template:Pc icon

Solar Pillar.png This is one of the four bosses that spawn during the Lunar Events that start once the Lunatic Cultist has been
Celestial Sigil.png

defeated. After all 4 Celestial Towers are defeated, the Moon Lord will spawn.

The pillar itself doesn't do much to attack the player, mainly summoning enemies instead, but it does cause solar fragments to rain non-stop from the sky. It is surrounded by a large, impenetrable force field until 100 of its minions have been slain. The enemies it spawns are melee-based. It is highly recommended to stay on the ground, as the Crawltipedes it spawns only target airborne players. After 100 minions are killed, the force field around it will dissipate, allowing players to attack it.

The Solar Pillar spawns the following enemies:

  • Selenian
  • Drakanian
  • Corite
  • Sroller
  • Crawltipede
  • Drakomire

Nebula Pillar Template:Pc icon

Nebula Pillar.png This is one of the four bosses that spawn during the Lunar Events that start once the Lunatic Cultist has been
Celestial Sigil.png

defeated. After all 4 Celestial Towers are defeated, the Moon Lord will spawn.

While the pillar itself doesn't do anything to attack the player, it spawns magic-based enemies. It is surrounded by a large impenetrable force field until at least 100 of its minions are slain. After the 100 minions are killed, the force field dissipates, allowing the player to attack it directly.

The Nebula Pillar spawns the following enemies:

  • Nebula Floater
  • Brain Suckler
  • Predictor
  • Evolution Beast

Vortex Pillar Template:Pc icon

Vortex Pillar.png This is one of the four bosses that spawn during the Lunar Events that start once the Lunatic Cultist has been
Celestial Sigil.png

defeated. After all 4 Celestial Towers are defeated, the Moon Lord will spawn.

The pillar itself doesn't do much to attack the player, only occasionally spawning a Giant Magnet sphere sort of attack, similar to the Lunatic Cultist's one. It spawns ranged-based enemies. After 100 of its minions have been slain, the force field around it will dissipate, leaving it open to the player's attacks.

The Vortex Pillar spawns the following enemies:

  • Vortexian
  • Alien Queen
  • Alien Hornet
  • Alien Larva
  • Storm Diver

Stardust Pillar Template:Pc icon

Stardust Pillar.png This is one of the four bosses that spawn during the Lunar Events that start once the Lunatic Cultist has been
Celestial Sigil.png

defeated. After all 4 Celestial Towers are defeated, the Moon Lord will spawn.

The pillar itself doesn't attack the player much, but it is the only pillar with a damaging enemy-spawning animation. As with the other pillars, it is surrounded by an impenetrable force field that is only broken when 100 or more of its minions are slain. Once the force field is broken, the player can attack the pillar at will.

The Stardust Pillar spawns the following enemies:

  • Star Cell
  • Flow Invader
  • Twinkle Popper
  • Twinkle
  • Stargazer

Console/Mobile Template:Console iconTemplate:Mobile icon


Ocram animated small.gif
Ocram Trophy.png
Suspicious Looking Skull.png
For strategies on defeating Ocram, see Guide:Ocram strategies.

Ocram is a boss that exists on the console version and mobile version of Terraria. It is generally considered the hardest boss in the console and mobile versions.

Mobile Exclusive Template:Mobile icon


Suspicious Looking Egg.png
For strategies on defeating Lepus, see Guide:Lepus strategies.

Lepus is a large, rabbit-like, Easter-themed boss exclusive to the Mobile version of Terraria.

Turkor the Ungrateful

Turkor the Ungrateful.png
Cursed stuffing.png
For strategies on defeating Turkor the Ungrateful, see Guide:Turkor the Ungrateful strategies.

Turkor the Ungrateful is a Thanksgiving-themed boss exclusive to the Mobile Version of Terraria. It is summoned with a Cursed Stuffing while a Pet Turkey is active.


  • The messages for all the bosses are:
    • Eye of Cthulhu: "You feel an evil presence watching you..."
    • Eater of Worlds and Brain of Cthulhu: "A horrible chill goes down your spine..." after the first and "Screams echo around you..." after the second Shadow Orb/Crimson Heart is broken. The third only produces a standard summon message.
    • The Destroyer: "You feel vibrations from deep below..." or "You feel a quaking from deep underground..."
    • The Twins: "This is going to be a terrible night..."
    • Skeletron Prime: "The air is getting colder around you..." or "You feel the air getting colder around you"
    • Moon Lord "Impending doom approaches…"
  • As of 1.2.3, worlds generated in earlier versions, in which a player defeated all mechanical bosses before upgrading, will not have those bosses register as defeated; for instance, Plantera's Bulbs will not spawn, and the Steampunker will not arrive.
  • There are currently 30 different/unique bosses (18 in Template:Pc icon, 18 in Template:Console icon and 17 in Template:Mobile icon) in the game.
  • On the Template:Mobile iconMobile version, all loot from a boss will appear directly on the player.
  • All bosses have significantly lower health on the Template:Mobile iconMobile version. This is most likely to make up for the Mobile version's shorter nights and smaller underworld.


    • Mech bosses no longer spawn randomly if another boss is alive.
    • You can still summon multiple bosses manually. Hardmode bosses will no longer spawn if no player is above ground.
  • 1.2.3:
    • Various boss changes and/or bug fixes.
    • Mech bosses are now slightly more difficult.
    • You can no longer waste boss summon items by using them after that boss has spawned.
    • Fixed a bug where numerous NPCs could spawn if you beat a hardmode boss in a non-hardmode world.
  • Some Plantera and Destroyer changes.
  • 1.2.1: Reduces the chance for a mechanical boss summon to drop during hardmode.
    • Hardmode Crimson, Corruption, and Hallow spread is now slowed after killing Plantera instead of any Mechanical Boss.
    • Slightly increased the chance for an eclipse to happen, but they will now only happen after killing a Mechanical Boss.
  • 1.2:
    • There are 4 new bosses: Brain of Cthulhu, Queen Bee, Plantera, and Golem.
    • Each boss has a rare chance to drop a placeable boss trophy.
    • Hardmode bosses have a chance to spawn on their own to help players progress through the game.
    • Current hardmode bosses now do slightly less damage and have had their health decreased.

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