Hello, This guide will help you with everything about Moon Lord.
 
 

Who is Moon Lord.

Moon Lord is a Hardmode, post-Lunatic Cultist boss. He is the final boss of the Desktop version, Console version, Mobile version, Nintendo Switch version, and tModLoader versions of Terraria. Picture of him:
 
 
 

How to spawn him.

Moon Lord can be spawned by destroying the four Celestial Pillars or by using a Celestial Sigil in any world where Golem has been defeated. All pictures of the Celestial Pillars and the Celestial Cigil:
 
 
Solar Pillar
 

 
 
Vortex Pillar
 

 
 
Nebula Pillar
 

 
 
Stardust Pillar
 

 
 
Celestial Cigil
 

 
 
 

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All Pillars Enemies.

In the Solar area:

Drakomire Rider
 

 
 
Selenian
 

 
 
Drakanian
 

 
 
Corite
 

 
 
Sroller
 

 
 
Crawltipede
 
 

 
 
Drakomire
 

 
 
 

In the Vortex area:

Vortexian
 

 
 
Alien Queen
 

 
 
Alien Hornet
 

 
 
Alien Larva
 

 
 
Storm Diver
 

 
 
 

In the Nebula area:

Nebula Floater
 

 
 
Brain Suckler
 

 

 
 
Predictor
 

 
 
Evolution Beast
 

 
 
 

In the Stardust area:

Star Cell
 

 
 
Flow Invader
 

 
 
Twinkle Popper
 

 
 
Twinkle
 

 
 
Milkyway Weaver
 

 
 
Stargazer
 

 
 
 

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Behavior

Moon Lord has two hands and a head that must be killed before his core becomes available for attack. He positions his two hands on either side of the player some distance away.
 
 
Each hand, as well as his head, contains a vulnerable eye-like target that is each periodically closed off and opened via an eyelid. These may only be damaged during their “open” states. The core, which is the only part required to be destroyed in order to defeat the boss, only becomes vulnerable when all eye sockets are destroyed.
 
 
Moon Lord can teleport to players if all of them get too far out of range.
 
 
 

Attacks

Moon Lord’s hands move away from the core and their eyes spawn six Phantasmal Spheres. After a couple seconds, they explode, dealing heavy damage. If the player is far enough away, they simultaneously charge at the player before exploding, though they cannot travel at an angle higher than approximately 30 degrees in any direction.
 
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The hand eyes also spawn multiple Phantasmal Eyes, which move in all directions for a short while before homing in on the player. Like the Phantasmal Spheres, they cannot travel at an upward angle, so they can be evaded by swerving upwards. If they cannot get a direct lock and a player is in range then they will attempt to match the target’s trajectory to stay in their path. They explode upon contact with a block or player.
 
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The hand eyes also occasionally fire two Phantasmal Bolts in quick succession, aiming at the player, which pa*s through blocks, requiring swerves to avoid. Another viable option is to quickly drop down before the bolts fire, saving the player from getting hit.
 
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When attached to Moon Lord’s head, the head eye opens every 20–21 seconds for a few seconds, and then fires a Phantasmal Deathray: a large laser that sweeps 60 degrees upward over the player. This is by far Moon Lord’s most damaging attack. Afterward, the head eye blinks a couple times, and fires two Phantasmal BoltPhantasmal Bolts (similarly to those of the hands), and then closes. As of 1.4, the Head eye will also fire two Phantasmal Bolts before performing the Deathray attack, the Deathray can pa*s through solid blocks as well.
 
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After the Deathray attack, the mouth attempts to attach a Tentacle to the player. The Tentacle can reach through solid blocks. Once attached, it spawns multiple Moon Leech Clots, which are enemies that travel from the player to Moon Lord’s mouth. Any Moon Leech Clot that reaches the mouth without being killed returns 1000 health to one of Moon Lord’s parts (one that has not yet been defeated).
 
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The Tentacle also inflicts the Moon Bite debuff, preventing any life-steal effects from weapons/armor like Vampire Knives or Spectre Armor for 14 seconds (16 seconds in Expert Mode).
 
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The eye spawns Phantasmal Eyes, which behave similarly to when before the eyes were defeated.
 
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The eye charges and fires a lesser Phantasmal Deathray, smaller and dealing significantly less damage. Unlike the primary laser, these attacks cannot go through blocks.
 
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Once the Head eye is defeated, the Tentacle attack becomes more common, with only about a 2 second break between attacks.
 
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When a hand or head target is defeated, it becomes a thorny crevice that deals damage on contact.
 
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Additionally, when a head or hand target is defeated, a True Eye of Cthulhu spawns, which cycles through the following attacks:
 
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The eye fires two Phantasmal Bolts at the player, similar to those from the hand eyes.
 
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The eye spawns six Phantasmal Spheres in a hexagonal formation around itself, which after a few seconds will charge directly at the player, dealing a significant amount of damage to the player. This is by far the dominant source of damage in the second phase and should be avoided by swerving/dashing.
 
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Finally, the eye performs another Phantasmal Sphere attack.
 
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The True Eyes of Cthulhu are invincible and will only despawn if either all players die or Moon Lord is defeated. The eyes remain stationary for most of their attacks.
 
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Moon Lord will teleport to the nearest player if the player he is targeting dies or moves more than 150 tiles away.[2]
 
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Notes

Notes:
 
The defeat of a pillar is announced in a status message:
 
“Your mind goes numb…” – first pillar defeated
 
“You are overwhelmed with pain…” – second pillar defeated
 
“Otherworldly voices linger around you…” – third pillar defeated
 
“Impending doom approaches…” – fourth pillar defeated
 
Celestial creatures do not drop coins, even with the Lucky Coin (or its derivatives) equipped. They also do not drop Presents during Christmas, Goodie Bags during Halloween, or Biome Keys.
 
In a singleplayer world, the Celestial Pillars will not disappear when the player dies or exits Terraria completely. The pillars must be destroyed in the world, otherwise they will stay in the world indefinitely.
 
The Moon Lord may not be summoned via the Celestial Sigil while the pillars are still active.
 
Exiting the world after the “Impending doom approaches…” status message has appeared will cancel the event and prevent the Moon Lord from spawning.
 
While it is extremely rare, it is possible for a Pirate Invasion or Goblin Army to spawn while the Lunar Events are still active.
 

 
 
 

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Achievements

Champion of Terraria • “Defeat the Moon Lord.”
 
Defeat the Moon Lord for the first time.
 
 
Slayer of Worlds • “Defeat every boss in Terraria.”
 
Defeat every boss in the game (not including Empress of Light and Queen Slime).
 
 
 

Tips

Dodging Moon Lord’s attacks is crucial. In particular, the Phantasmal Deathray should be avoided at all costs.
 
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Useful items that increase the player’s mobility include Gravitation Potions, fast wings like the Fishron or Empress Wings, items allowing to dash (e.g. the Tabi), the Soaring Insignia, and numerous mount-summoning items like the Gelatinous Pillion, Shrimpy Truffle, Cosmic Car Key, Witch’s Broom, or !!Error: Invalid EICONS input! The Black Spot. The player might also consider constructing a skybridge made out of Asphalt Blocks or Minecart Tracks (especially if using the Mechanical Cart).
 
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Hiding under a row of blocks while using a weapon that can attack through blocks, such as the Solar Eruption, can nullify Moon Lord’s Phantasmal Deathray. Two rows of blocks can be quite effective. The player should make sure that the barrier has horizontal running room, in order to make space to dodge the Phantasmal Spheres.
 
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Using homing weapons or ammo like Chlorophyte Bullets allow the player to focus on dodging.
 
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If neither high mobility nor barriers are available, the Rod of Discord allows the player to easily teleport behind the sweeping motion of the Phantasmal Deathray.
 
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Teleporting away from Moon Lord to get healing from the Nurse might result in her death, because Moon Lord will immediately teleport to the player.
 
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In multiplayer, Moon Lord will attack the nearest player. Players can take turns teleporting home to get healing from the Nurse.
 
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In Journey Mode fighting Moon Lord in a low difficulty, then changing the difficulty during the exploding animation will still give the player the rewards of the new difficulty.
 
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Moon Lord is vulnerable to almost all debuffs, most notably Ichorand Betsy’s Curse, which can dramatically speed up the fight. However, since Moon Lord’s eyes remove all debuffs when they close, the player will have to reapply them accordingly.
 
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It is advisable to kill the eye on the head first. It is the only eye capable of firing the Phantasmal Deathray and remains closed for significantly longer than the eyes in the hands. If the player waits to kill the head last, they may have to deal with two True Eyes of Cthulhu for a longer amount of time.
 
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While the frequently-applied Moon Bite debuff disables the healing effects of Vampire Knives and the Spectre Hood, it does not disable health regeneration boosts, hence the effects of Nebula armor and the Life Drain are not affected.
 
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Some of Moon Lord’s attacks can be avoided using the 200 NPC limit.
 
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Moon Lord’s attacks bypa*s typical invincibility frames, requiring special setups to bypa*s his attacks.
 
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Moon Leech Clots will always reach Moon Lord’s mouth in the same amount of time. They travel toward it at a variable rate, remaining completely stationary (or at least apparently so) if Moon Lord is in his default position behind the player. As a result of this, though it may seem counterintuitive, it is actually beneficial to be closer to the mouth to destroy Moon Leech Clots, as they will not move away as quickly.
 
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Moon Lord’s eye sockets still deal contact damage during his death animation. It is wise to move away from the boss after he is defeated.
 
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The entire fight can be trivialised in Expert Mode via the use of the Mechanical Cart. Setting up a minecart track across the sky with bumpers at both end will force Moon Lord to constantly teleport to the player, and allow them to avoid nearly every attack. Using Beetle armor and the Vortex Beater with Chlorophyte Bullets will allow the player to shoot at the reeling Moon Lord, while keeping them relatively safe.
 
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Parts

Moon Lord
 

 
 
Moon Lord’s Hand
 

 
 
Moon Lord’s Core
 

 
 
 

Drops

From pillars :
 
 
Vortex Fragment
 

 
 
Nebula Fragment
 

 
 
Stardust Fragment
 

 
 
Solar Fragment
 

 
 
From Moon Lord:
 
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Portal Gun
 

 
 
Luminite
 

 
 
Meowmere
 

 
 
Meowmere Minecart
 

 
 
Terrarian
 

 
 
Star Wrath
 

 
 
S.D.M.G.
 

 
 
Celebration
 

 
 
Celebration Mk2
 

 
 
Last Prism
 

 
 
Lunar Flare
 

 
 
Rainbow Crystal Staff
 

 
 
Lunar Portal Staff
 

 
 
Moon Lord Mask
 

 
 
Moon Lord Trophy
 

 
 
Suspicious Looking Tentacle (Expert only)
 

 
 
Gravity Globe (Expert only)
 

 
 
Celestial Starboard (Expert only)
 

 
 
Piece of Moon Squid (Master only)
 

 
 
Moon Lord Relic (Master only)
 

 
 
Music:
 
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The Towers
 

 
 
The Towers (Otherworldly)
 

 
 
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