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Skeletron Prime

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Skeletron Prime
Skeletron Prime.png
Statistics
Type Boss
AI Type Skeletron Prime Head AI
Damage 47
94 (while spinning)
Max Life 28000
Defense 24
48 (while spinning)
Knockback Resist 100%
Drops
Coins 12 Gold Coin
Item (Quantity) Rate
Soul of Fright.png Soul of Fright (20-40) 100%
Greater Healing Potion.png Greater Healing Potion (5-15) 100%
Hallowed Bar.png Hallowed Bar (15-35) 100%
Skeletron Prime Mask.png Skeletron Prime Mask 14.29%Pc only.png
Skeletron Prime Trophy.png Skeletron Prime Trophy 10%
For strategies on defeating Skeletron Prime, see Guide:Skeletron Prime strategies.

"You feel the air getting colder around you..."

Skeletron Prime is a Hardmode Mechanical Boss which is a much harder version of Skeletron. He is summoned with the Mechanical Skull at night. Players have until dawn to kill him. He can also randomly spawn at dusk in Hardmode if he has not yet been defeated, in this case signaling his approach via the chat message, "You feel the air getting colder around you" or "The air is getting colder around you".

Attacks[edit]

Skeletron Prime has four limbs which are all immune to the Poisoned and On Fire! debuffs:

  • Prime Cannon fires flashing bombs that do not destroy blocks, usually up into the air rather than directly at the player.
  • Prime Laser shoots Death Lasers similar to those of Retinazer and The Destroyer, and is always pointed at a player.
  • Prime Saw and the Prime Vice swipe around dealing hefty amounts of damage on contact.

Skeletron Prime will occasionally enter into a "Rage Mode," in which his attacks become more aggressive:

  • Skeletron's Head will grow spikes and start spinning towards the player slowly. Damage and defense is doubled.
  • Prime Cannon will aim at the player directly and fire rapidly.
  • Prime Laser will fire more frequently.
  • Prime Saw will begin homing directly towards the player's location.
  • Prime Vice becomes more aggressive and frequently lunges towards the player.

Prime himself is much more mobile than his predecessor, and will regularly move off-screen, which can make him difficult to hit reliably with ranged weapons.

Like Skeletron, if he is not dead by dawn he will begin to dish out instant kills and will take only 1 damage from attacks (2 for critical hits).

Arms[edit]

Prime Cannon
Prime Cannon.png
Statistics
AI Type Prime Cannon AI
Damage 40 grenade
30 melee
Max Life 7000
Defense 23
Prime Laser
Prime Laser.png
Statistics
AI Type Prime Laser AI
Damage 25 death laser
29 melee
Max Life 6000
Defense 20
Prime Vice
Prime Vice.png
Statistics
AI Type Prime Vice AI
Damage 52
Max Life 9000
Defense 34
Prime Saw
Prime Saw.png
Statistics
AI Type Prime Saw AI
Damage 56
Max Life 9000
Defense 38

Notes[edit]

  • While it is possible to continue the fight during the day without dying, Skeletron Prime will continually headspin and barely take any damage (1 damage per hit and 2 damage per crit), while killing players instantly. Due to the similarities, he is sometimes referred to as Dungeon Guardian Prime. He will do this indefinitely, even if the next night comes before he's gone.
  • The bombs fired by the Prime Cannon will only detonate if they hit solid blocks (they will not destroy blocks). They pass through platforms without detonating.
  • If the player is deep enough underground, Skeletron Prime will not spawn randomly, even when the chat message indicates he's coming.
  • Using a Mechanical Skull while Skeletron Prime is already spawned can cause it to headspin continuously as if dawn has arrived, instantly killing players.
  • In the mobile version, each limb is treated as if it was a boss on it's own, but does not have its own summoning message. When you defeat a limb, it says (name of limb) has been defeated!
  • If (in singleplayer) the player dies, Skeletron Prime will not come back.
  • Unlike the Skeletron, Skeletron Prime defense raises when it is spinning.

Tips[edit]

  • Standing on platforms far from blocks can mostly nullify the effects of the Prime Cannon, as its projectiles only detonate on blocks, while passing through platforms harmlessly.
  • Skeletron Prime can be the most profitable boss in the game, as the Souls of Fright can be crafted into Naughty Present to summon the Frost Moon, netting large amounts of money per 5 souls.
  • In multiplayer, the Prime Cannon and the Prime Laser will point at the player Skeletron Prime is attacking.
  • Skeletron Prime can be debuffed by the Golden Shower which can make destroying the limbs easier
  • Focus mostly on taking out his melee limbs, then his head.

Trivia[edit]

  • The boss Cortez, from "Paper Mario: The Thousand Year Door" may have influenced Skeletron Prime, as Cortez's final form is a floating skull surrounded by four different levitating weapons, all of different attack powers and methods.
  • His name may have been inspired by Optimus Prime, a robotic character from the Transformers franchise.

Bugs[edit]

Bug.png Bug : Occasionally, when summoned with the Mechanical Skull, Skeletron Prime does not appear. This is confirmed to happen in Multiplayer and Singleplayer. This might happen if you summon him too close to a house.
Bug.png Bug : Occasionally, Skeletron Prime's head disappears randomly, ending the fight. Additionally when this bug occurs, some of his limbs will occasionally not disappear along with the head and will continue to fight for a short period.
Bug.png Bug : Sometimes in multiplayer, when Skeletron Prime is summoned, he will suddenly die and give drops.
Bug.png Bug : If you summon Skeletron Prime on a Floating Island, and teleport to a spawn point underneath the island, it will cause his limbs to disappear, and only have his head remaining to fight. A similar glitch can happen while fighting The Twins.
Bug.png Bug : Occasionally Skeletron Prime will float down and despawn randomly, or after the player teleports, or after one of his arms is defeated. It will then be considered morning in the game no matter what time of night it was when it happened. This happens in console and PC versions. This may be caused due to a desynchronization in time between client and server.
Bug.png Bug : Bombs fired by the Prime Cannon will destroy player-placed Living Wood, Living Wood Walls, and Leaves.
Bug.png Bug : Occasionally, Skeletron Prime does not spawn when the text announcing his awakening appears.
Bug.png Bug : Rarely, the message "You feel the air getting colder around you" will appear at 7:30 in the morning. If you summon the Twins, Skeletron Prime will summon with just two limbs.
Bug.png Bug : Occasionally, as of 1.2.3.1 Skeletron Prime instantly kills you (happens in both singleplayer and multiplayer).
Bug.png Bug : Sometimes, when you defeat Skeletron Prime he does not drop any Souls of Fright, mostly happening on multiplayer.
Bug.png Bug : Sometimes, when you use a mechanical skull in Space and teleport back to the surface using a Magic Mirror, Skeletron Prime will flee underground ending the battle.
Bug.png Bug : Mobile only.png In multiplayer, if summoned by someone other than the host (Sometimes the host himself/herself), the host's game crashes. (Only on Kindle fire)
Bug.png Bug : Mobile only.png When you kill one of Skeletron Prime's arms, it gives a message that it is defeated, and they will drop hearts and greater healing potions.
Bug.png Bug : Mobile only.png If any of Skeletron Prime's arms or his head goes off the map it will be despawn/destroyed and you might lose Skeltron Prime's drops.
Bug.png Bug : Very rarely, his hands may be cloned: 2 Cannons, 2 Saws, 1 Vice, 1 Laser. (tested in multiplayer)
Bug.png Bug : If you follow Skeletron Prime to the top then and out of the world then he will despawn.
Bug.png Bug : Console only.pngwhen Skeletron Prime has 1,000 hp left he will flee underground.
Bug.png Bug : Console only.pngsometimes Skeletron Prime will die randomly, but will not drop anything.

History[edit]

For changes that affect all the mechanical bosses, see Mechanical_Bosses#History.
  • 1.2.3: Increased health, damage and defense of most parts. May now drop Skeletron Prime Mask. Fixed bug where you can respawn skeletron prime if you kill its prime cannon hand and not skeletron prime himself.
  • 1.2:
    • Now has a chance to spawn during hardmode with the message: "You feel the air getting colder around you...".
    • Will now drop 20-40 Souls of Fright, instead of 20-30. Also has a chance to drop Skeletron Prime Trophy.
    • Health, damage and defense of all parts and head reduced.
  • 1.1: Introduced.
Characters: Blue Slime.png Pre-Hardmode Enemies • Pixie.png Hardmode Enemies • Goblin Warrior.png Event Enemies • Skeletron Head.png Bosses
Bunny.png Critters • Guide.png Friendly NPCs • Baby Dinosaur.png Familiars