Bosses are aggressive, resilient enemies that offer a substantial challenge to players. Defeating a boss is usually instrumental in advancing the game in some way or another, for example, granting the player a new material for a pickaxe of a higher tier. Each has its own particular way of being summoned. For example, most bosses have associated summoning items that can be used to spawn them manually under certain conditions, while there are others that will appear after the player interacts in a certain way with the environment. Event bosses will only appear during their respective events and leave when the event ends. Mini-bosses also exist and appear only during special events, expressing the same amount of difficulty as many normal bosses. Their health has a huge range: On Classic Mode it ranges from 1,000 to 145,000.
For all non-event bosses, with the exception of the Lunatic Cultist, status messages will appear when that boss is about to spawn or has already spawned. Upon spawning, its particular theme music plays. During events, bosses and mini-bosses can appear multiple times and have no distinct spawn message. In the case of wave events like the Pumpkin and Frost Moons and the Old One's Army, status messages that appear at the start of each wave can indicate whether or not a certain boss or mini-boss will appear. Defeating a non-event boss concludes with a congratulatory message and several reward items.
On the Desktop version, Console version, and Mobile version, bosses will appear on the minimap, each with an individual map icon. On the Desktop version and Mobile version, a boss health bar will appear on the screen (it will only show the health of the most recently-attacked boss, if there are multiple).
- However, bosses will still appear as the standard purple blob that signifies enemies on the Old-gen console version.
- 1 Pre-Hardmode bosses
- 2 Hardmode bosses
- 3 Event bosses
- 4 Old-gen console version and 3DS version exclusive
- 5 3DS version exclusive
- 6 Notes
- 7 Achievements
- 8 History
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. Although there are 7 pre-Hardmode bosses, only 6 can be spawned in the same world, as the Eater of Worlds is exclusive to worlds containing Corruption, and the Brain of Cthulhu is exclusive to worlds containing Crimson (assuming the player does not place an alternate evil in the same world as the other one, e.g. via seeds from another world or seeds purchased from the Dryad in Hardmode, and does not use a secret seed).
King Slime is a giant blue slime with 2,000 / 2,800 / 3,570 health. It is summoned with a Slime Crown, or after killing 150 (75 if he has already been killed) slimes during a Slime Rain, or can also rarely appear in the outer thirds of the map completely by itself. As with all enemies that can spawn naturally, the King Slime has a better chance of spawning while standing near a placed Water Candle or while under the effects of a Battle Potion.
The Eye of Cthulhu is a huge eyeball with 2,800 / 3,640 / 4,641 health. It has a
33.33*1/3 (33.33%) 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. If not defeated by the player by the end of the night, it will travel upwards and despawn. This is generally the first boss a player must face. It travels through blocks, and spawns Servants of Cthulhu.
In Expert Mode (and Master 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. The chain dash attack will also scale in aggressiveness the same way. This can lead to it dashing almost continually at high velocity at very low health.
The Eater of Worlds is a colossal worm with 10,050 / 15,120 / 19,224 health in total on the Desktop version and Mobile version, and 7,500 / 10,500 health on the Console version, Old-gen console version, and version. It awakens after every third Shadow Orb is broken or after Worm Food is used. Shadow Orbs are found in the Corruption chasms, surrounded by Ebonstone, which requires a pickaxe with 65% pickaxe 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 or explosives. The Eater of Worlds can only be summoned in worlds containing Corruption, and can be summoned at any time of the day. If it manages to escape the Corruption, it will flee and disappear.
Eater of Worlds is a large worm-type enemy that travels through tiles, and is made up of multiple sections that can each attack separately when cut off. To defeat it, 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 Corruption gear is, this will probably be the second boss faced in worlds that have Corruption, rather than those who have Crimson.
The Eater of Worlds is the only source of Shadow Scales in the game, and it drops large amounts of Demonite Ore. They can be combined to make Shadow armor, but it can also be sold for almost 10 per stack of 99, making this technically the best pre-Hardmode boss for farming in the game.
The Brain of Cthulhu is a large, flying brain with a mere 1,000 / 1,700 / 2,167 health, giving it the lowest amount of health out of any boss. It spawns once for every third Crimson Heart that is broken or immediately after a Bloody Spine is used. Crimson 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. It can only be summoned in the Crimson, but at any time of day.
The Brain of Cthulhu has two forms. In the first form, the brain cannot be harmed, and Creepers will float around it. After all of these are killed, the Brain of Cthulhu 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, like the second form of Eye of Cthulhu. Unlike most other bosses, the Brain of Cthulhu is not immune to knockback.
The 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 Shadow Scale and Demonite Ore respectively.
In Expert Mode, the Brain of Cthulhu will have more health, and in its second phase, it will 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 real Brain of Cthulhu. However, the minimap icon will still show the real Brain of Cthulhu, allowing players to bypass this.
Queen Bee is an enormous bee with 3,400 / 4,760 / 6,069 health. She is summoned by destroying her larva, encased within the walls of Bee Hives located in the Underground Jungle. She can also be summoned by the use of an Abeemination anywhere in the Jungle biome. She is the only source of Bee Wax in the game. Queen Bee is immune to knockback.
Queen Bee alternates between charging at the player, hovering above them whilst spawning Bees, and moving left and right whilst shooting stingers. In Expert Mode, the rate at which she charges the player gets faster the more damage she takes.
Defeating Queen Bee will allow the Witch Doctor to spawn; other than this, she does not advance the game in a major sense, though defeating her does provide some decent loot that can further help the player prepare for the boss battle against the Wall of Flesh. One such weapon is the Beenade, which is extremely effective when fighting the Wall of Flesh.
Skeletron is a large skeletal head with 4,400 / 8,800 / 11,220 health and two hands. It is summoned by speaking to the Old Man NPC at the entrance of the Dungeon and activating his curse 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 usually kill the player in one hit. It will then despawn.
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.
In Expert Mode, Skeletron's head is more resistant to damage until its hands are destroyed. Once they are destroyed, it will start shooting homing skulls at the player. Expert mode Skeletron is much faster. Its hands inflict the Slow debuff, and its head inflicts Bleeding. If the player gets caught by its head-spin attack, Skeletron can "stun-lock" them, a lethal situation that can only be escaped by high mobility, e.g. with a hook.
The Wall of Flesh is a towering wall that spans the entire screen height. It has 8,000 / 11,200 / 14,280 health. It is summoned by throwing a Guide Voodoo Doll into a pool of lava while the Guide is alive. It is the final boss of pre-Hardmode, because defeating it will irreversibly enable Hardmode in the world. It can drop several powerful items, one of them being the guaranteed drop Pwnhammer which can be used to break Demon Altars or Crimson Altars in order to spawn various game-advancing Hardmode ores.
Upon summoning the Wall of Flesh, the player will be afflicted with the Horrified debuff, which prevents fleeing from the battle – any attempt to do so will result in severe damage via The Tongue or instant death if the player tries to teleport away, and the debuff will not be removed until either the player or the Wall of Flesh is killed. The Wall of Flesh will then sweep across the map, moving faster as its HP gets lower. It must be killed before it reaches the end of the map, otherwise it will despawn and any living players in the Underworld will instantly die. Additionally, the Wall of Flesh's eyes fire lasers, with the rate of fire increasing as it takes damage. Its mouth burps Leeches that will chase the player, and it has small mouths attached to it called The Hungry, which will also move toward and damage the player.
In Expert Mode, the Wall of Flesh will greatly increase its movement speed as its health decreases, eventually surpassing even players riding the Bunny Mount or horse mounts in movement speed. The Hungry will rapidly respawn, thus seemingly blocking the wall from attacks, and can deal significant damage themselves. The faster the Wall of Flesh moves and the quicker The Hungry respawn, the more the player will have to focus on dealing damage and moving across a decent terrain.
Hardmode bosses are significantly stronger than previous bosses.
- Summoned with a Gelatin Crystal
Queen Slime is a giant slime with 18,000 / 28,800 / 36,720 health. She is available to battle at the start of Hardmode, and is summoned from Gelatin Crystals in the Underground Hallow. She is an optional boss fight and is a small gap to challenge before facing the mechanical bosses, warranting equipment upgrades and other items. There is a very strong resemblance to the pre-Hardmode King Slime, and is one of two Hallowed bosses featured in the game. As she takes damage she spawns Crystal Slimes, Bouncy Slimes, and Heavenly Slimes to aid her. While her first form is straightforward with attack patterns similar to that of King Slime's, the second phase poses much more of a threat as the boss begins to fly in the air, shooting projectiles from above.
The Twins are a pair of cybernetic Eyes of Cthulhu. They exist as two individual entities, known as Retinazer and Spazmatism, with the former having 20,000 / 30,000 / 38,250 health and the latter having 23,000 / 34,500 / 43,987 health. The Twins are summoned using a Mechanical Eye at night. It is worth noting that they will gain defense in their second forms, unlike the Eye of Cthulhu.
The two eyes have different fighting styles. Retinazer focuses on shooting the player with Death Lasers like the Destroyer's Probes. Once it reaches 40% HP, it will transform into its second form, replacing 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 other eye, Spazmatism, focuses on slamming into the player and firing cursed flames. Once it reaches 40% HP, it will transform into its second form, resembling 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 last Twin destroyed will drop all of the loot.
In Expert Mode Spazmatism's charging attack will be similar to the Eye of Cthulhu's chain dash ability in its second form, and Retinazer will shoot lasers almost as rapid as the Wall of Flesh at extremely low health.
The Destroyer is a colossal mechanized Eater of Worlds with 80,000 / 120,000 / 153,000 health. It is considered the easiest Hardmode boss by many players, despite having the second-highest health. Although it is similar to its pre-Hardmode counterpart, the Eater of Worlds, it has some key differences: it will not divide into smaller segments, will shoot lasers from its body if space is available, and will deploy Probes to attack once a segment is destroyed.
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 health. Weapons that deal damage to multiple segments like Flails, Daedalus Stormbow, and the Demon Scythe are recommended, because they will hit multiple sections of The Destroyer at once.
In Expert Mode, The Destroyer shoots fast lasers at the player when it has less than half of its maximum health. The head of The Destroyer can also deal damage as high as 280 / 420, crippling the player if they are hit head-on.
Skeletron Prime is a weaponized mechanical variation of Skeletron, with the head alone having 28,000 / 42,000 / 53,550 health. Instead of two hands, it has four limbs – a vice, laser gun, saw, and cannon. With the head and all limbs combined, Skeletron Prime has 59,000 / 88,500 / 112,836 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 it can only be summoned at night. It is more mobile than its predecessor, and it regularly flies off-screen, making targeting more difficult. It is also worth noting that when its head spins, its defense increases, unlike Skeletron, whose defense is dropped to 0 when spinning.
Skeletron Prime will drop Hallowed Bars and Souls of Fright upon being defeated, which are both used to craft many kinds of armor and tools. Like Skeletron, if Prime is not killed before the night ends, it will spin and target the player, generally killing the player in one hit, and will despawn afterwards.
In Expert Mode, Skeletron Prime follows around the same guidelines as Skeletron; it is less resistant to damage after its hands are destroyed, but its skull gains twice the amount of defense compared to normal mode Skeletron Prime when in its spinning attack.
- Summoned by destroying a Plantera's Bulb
Plantera is an enormous flower with 30,000 / 42,000 / 53,549 health. She is awoken by destroying a Plantera's Bulb, which is found in the Underground Jungle after defeating all three mechanical bosses. If the player exits the Underground Jungle, Plantera becomes "enraged", gaining a significant boost to her stats.
Plantera has two phases. In her first phase, she clings to solid blocks using vine-like hooks and fires Seeds (and eventually Poison Seeds), which are much like Spiky Balls. In her second form, Plantera has increased speed and charges at the player. She will also release tendrils from her main body. In Expert Mode, the seeds can go through walls and the tendrils are attached to each hook instead (3 on each), adding approximately 9 tendrils.
Golem is a large boss with a combined total of 39,000 / 58,500 / 74,586 health. It 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.
- Summoned by killing a Prismatic Lacewing
The Empress of Light is a Hallow-themed boss with 70,000 / 98,000 / 124,950 health. She can be summoned from killing a Prismatic Lacewing, and is one of two Hallowed bosses present in the game. This boss is meant to be a small gap in between Plantera and Golem, but can be fought later or skipped altogether, as it is an optional fight. However, if the player fights her the moment she is available, they will face a major difficulty spike and numerous attack patterns. This boss can also be fought in the day, which will make her "enraged", greatly increasing her attack damage to an instant-kill, but will drop the Terraprisma once 100% of damage is dealt during the day.
In his first stage, Duke Fishron will attempt to ram the player five times before either firing explosive bubbles or summoning Sharknados. In his second stage, Duke Fishron gains glowing eyes and a boost to attack and defense. Although his ramming attacks remain the same, instead of shooting bubbles directly at the player, he 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.
In Expert Mode, when Duke Fishron gets to low enough health, he enters his third phase. In this phase, the screen turns dark, Duke Fishron becomes invisible, and only his glowing eyes are visible. He teleports and tries to ram the player with high speed a few times, before he teleports again.
The Lunatic Cultist is a comparably small boss with 32,000 / 40,000 / 76,500 health. It is summoned by killing the four cultists, which reside at the entrance of the Dungeon after Golem is defeated. When the Lunatic Cultist is defeated, the Lunar Events will begin.
The Lunatic Cultist's attacks become more powerful as it loses health. The Lunatic Cultist flies around randomly, cycling between shooting fireballs, creating a ball which shoots lightning at the player, shooting a giant snowflake which shoots ice shards around it, shooting shadowflames, and shooting five destructible projectiles twice in a row. The Lunatic Cultist will also create fake copies of itself, which will summon a Phantasm Dragon when damaged. If a Phantasm Dragon is still alive and the player damages these copies, it will summon an Ancient Vision instead. Waiting too long to attack the real Lunatic Cultist will also cause the Phantasm Dragon or Ancient Vision to be summoned.
The Moon Lord is the final boss of Terraria, and drops a majority of the endgame items, such as the Meowmere. It also drops Luminite, an ore used to craft many endgame armor sets and tools. It is summoned by defeating all four of the Celestial Pillars from the Lunar Events, or by using a Celestial Sigil. It has a combined health of 145,000 / 217,500 / 277,311, the most health of any boss in the game.
Moon Lord has two hands and a head which must be killed by attacking the eyes on them, and when killed will release invincible True Eyes of Cthulhu. When the three eyes are destroyed, the Moon Lord's core opens up on his chest, which must then be destroyed to defeat the boss.
Moon Lord's hands shoot two projectiles at once which home onto the player, and summon phantom versions of the True Eye of Cthulhu and throwing them at the player. Moon Lord's top eye will occasionally fire a Phantasmal Deathray that will sweep across the entire screen. Being very deadly to players, it can be avoided by hiding under solid blocks (it will pass through blocks on the Desktop version and Mobile version), or by trying to escape its wrath on a flying mount. When the True Eyes of Cthulhu are released, the places where they used to be will inflict minor contact damage. The True Eyes of Cthulhu will fire less damaging versions of many of the same attacks as they did when they were still enclosed within the Moon Lord.
In Expert Mode, Moon Lord's Phantasmal Deathray attack deals a lot more damage, enough to kill most players in one hit.
The Ogre is a mini-boss that appears during the final wave of the Old One's Army Tier 2 event. The mini-boss has three attacks, consisting of flinging snot at its targets inflicting Oozed, leaping in the air creating a damaging shockwave when landing, and swinging its large club at enemies in front of it.
Betsy is the final boss that appears during the final wave of the Old One's Army Tier 3 event. The wyvern attacks in similar manner to Duke Fishron, dashing at the player and spiting streams of flames. She also has different attacks as well, launching fireballs at its targets and summoning two Etherian Wyverns alongside it.
- Event initiated with a Pirate Map
The Flying Dutchman is the mini-boss of the Pirate Invasion. It will initially spawn after 65% of the invasion is completed. It spawns various Pirate enemies to attack the player, and has four cannons which fire cannonballs at that must be destroyed before it can die, similar to the Martian Saucer. 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.
Pumpking is the second and final mini-boss 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). The mini-boss possesses two arms with scythes which swing and fire projectiles at the player, similarly to Skeletron. It cycles through modes of attack from swinging at the player to firing jets of flaming spikes, indicated by the face carved in the pumpkin it uses as a head.
Santa-NK1 is a mini-boss that appears during the Frost Moon event. It attacks by rapidly firing bullets from its chain gun at the player, launching presents that rain and parachute from the sky and shooting rockets at the player which pass through blocks. Its face disappears to reveal a robotic one during its second phase.
- Event initiated by letting a Martian Probe escape after a player is detected
The Martian Saucer is a large flying mini-boss that spawns during the Martian Madness event. It has two phases, the first phase requiring its turrets to be destroyed before its core can be damaged. During its first phase, the saucer cycles through three attacks, wherein it either fires a barrage of lasers at the player, fires homing rockets or attempts to disintegrate the player with a large laser from its bottom. In Expert Mode (all difficulties on Console), once the turrets have been downed, the mini-boss begins to quickly chase the player, rapidly sweeping and firing its death ray upon them.
The Solar 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 100/150 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 100/150 minions are killed, the force field around it will dissipate, allowing players to attack it.
The Solar Pillar spawns the following enemies:
While the Nebula 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 100/150 of its minions are slain. After the 100/150 minions are killed, the force field dissipates, allowing the player to attack it directly.
The Nebula Pillar spawns the following enemies:
The Vortex 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 100/150 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:
The Stardust Pillar itself doesn't attack the player much, but it is the only pillar with a damaging enemy-spawning animation. It spawns summon-based enemies. As with the other pillars, it is surrounded by an impenetrable force field that is only broken when 100/150 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:
Old-gen console version and 3DS version exclusive
Ocram is a boss that exists on the Old-gen console version and version of Terraria. It is generally considered the hardest boss of those versions. It is summoned by using a Suspicious Looking Skull. The boss attacks by lunging at the player, firing barrages of lasers and summoning Servants of Ocram. After it has taken enough damage, it switches to its second phase, thus increasing its attack rate and damage. Furthermore, its attacks are now initiated closer to the player.
3DS version exclusive
Lepus is a large, rabbit-like, Easter-themed boss exclusive to the version of Terraria. It is summoned with the Suspicious Looking Egg, which is dropped by Corrupt Bunnies and Diseaster Bunnies during the Easter season. Lepus lays two types of Easter Eggs: small ones that hatch Diseaster Bunnies, and bigger ones that hatch another weaker Lepus. These eggs can be damaged and destroyed by the player before hatching. A maximum of 5 Lepus can be spawned from the large eggs laid by the original Lepus, and after there are five, no more large eggs will be laid. Only the last remaining Lepus will drop items. Its drops include the Suspicious Looking Egg, Egg Cannon, and Boots of Ostara.
- Boss classification is determined as follows:
boss = truein Terraria's source code;
- Mini-bosses: the other trophy-dropping characters.
- The status messages that appear when the bosses are about to spawn are as follows:
- 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..."
- The Twins: "This is going to be a terrible night..."
- Skeletron Prime: "The air is 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 34 different/unique bosses ( 31, 29, 19, 21) in the game.
- Some enemies are particularly difficult to defeat, yet are not classified as bosses. These include:
- Desktop 18.104.22.168:
- Desktop 22.214.171.124:
- Desktop 126.96.36.199:
- Desktop 1.2.3:
- Desktop 188.8.131.52:
- Desktop 1.2:
- Added 4 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.
- Desktop 1.1: Added 4 bosses: Wall of Flesh, The Twins, The Destroyer, and Skeletron Prime (the three mechanical bosses are Hardmode upgrades of the original ones).
- Mobile 1.1.6255: Added Turkor the Ungrateful.
- Mobile 1.1.91: Introduced Lepus.