Guide:Skeletron Prime strategies
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This means the page will walk you through a specific task, strategy, or enemy/boss fight.
Skeletron Prime is the Hardmode version of Skeletron. It is part of the trio of Mechanical bosses, alongside with The Destroyer and The Twins. Its high health, defense, damage, and multiple limbs will take a lot of punishment, and its limbs have the added effect of blocking non-piercing shots aimed at its head.
|AI Type||Skeletron Prime Head AI|
|Damage||47 / 79|
94 / 158 (while spinning)
|Max Life||28000 / 42000|
48 (while spinning)
- Internal NPC ID: 127
Spawning Conditions[edit | edit source]
Skeletron Prime can be spawned by fulfilling any of these conditions:
- Smash a / . It will then have a 10% chance of appearing when night falls, until it is defeated for the first time. This condition is shared with the rest of the trio, so there's a chance that the Destroyer or Twins will spawn instead.
- Use a .
It must then be defeated before all involved players die.
The Fight[edit | edit source]
Skeletron Prime is a flying boss that consists of five parts:
- Prime Saw, a melee arm, with 9000 health.
- Prime Vice, a melee arm, with 9000 health.
- Prime Laser, a ranged arm that fires lasers, with 6000 health.
- Prime Cannon, a ranged arm that fires grenades, with 7000 health.
- Skeletron Prime, the head, with 28000 health.
If you take out its Head, you kill the boss.
Each limb has its own unique attack pattern, listed below. Although killing the limbs is not necessary, they can block the head (especially Prime Saw and Prime Vice), and destroying them can make the fight much easier. It is suggested that you take out the most dangerous limbs at the beginning, as the fight gets significantly easier without them.
Prime Saw[edit | edit source]
Prime Saw is one of the two melee limbs Skeletron Prime has. It lunges at the player, dealing a lot of damage if its attack connects. However, compared to the other limbs, the Saw is not as aggressive, making it a low priority.
Its predictable pattern, combined with its more passive behavior, makes it a small threat compared to the other limbs despite its high damage.
Prime Vice[edit | edit source]
Prime Vice is one of the two melee limbs Skeletron Prime has. Compared to the Saw, it does less damage, but is more aggressive. It lunges at the player, attacking many times before retracting.
Although its pattern can be somewhat predictable, its behavior makes it a very dangerous limb capable of dealing a ton of damage if the player is not careful.
Prime Laser[edit | edit source]
Prime Laser is one of Skeletron Prime's ranged arms. It will consistently remain above the player, firing lasers at a moderate rate. Its shots do a lot of damage and is Prime's strongest limb in Expert mode. The laser starts shooting a lot faster when Prime enters his "enraged" state, making it an even bigger problem.
Its highly damaging, fast and accurate shots arguably make it Prime's most dangerous limb. Because of this, it should be targeted before any of the others.
Prime Cannon[edit | edit source]
Prime Cannon is the second of Prime's ranged limbs. It shoots bombs that do not destroy tiles, lack contact damage, and ignore platforms. This means that if the player fights in an arena, the Cannon will very rarely do any damage, since the bombs only explode should they land on a solid block.
This, combined with the fact that the bombs are by far Prime's weakest attack, makes the Cannon significantly less threatening than any of the other limbs. The player should focus their firepower on the other arms or Skeletron Prime itself.
Skeletron Prime[edit | edit source]
Skeletron Prime is the head, which must be destroyed to win. Skeletron Prime will try to float above the player at all times. It will close in to do its spinning attack, which doubles its attack and defense and empowers its other limbs, making them attack more frequently. Once it finishes spinning, it will retreat again.
Like Skeletron, if the head is not destroyed by morning, it will be locked in its spinning attack, gain a speed increase, and its attack and defense will increase to near-unbeatable levels. In this state, a single hit will kill the player, while the head will only take one damage per hit, and two damage per critical hit.
Attacking the head is a lot easier once some of its limbs are down, mainly the Vice and the Laser. Focusing only on the head still works should the player wish to end the fight as soon as possible, but usually it is recommended to focus on some of the arms first.
General Strategies[edit | edit source]
General tips[edit | edit source]
- Starting the battle as soon as the sun sets (at 7:30 p.m.) will provide the maximum amount of time to defeat nocturnal bosses.
- Prepare your Boss-fighting arena with adequate lighting, and for health regeneration, and for mana regeneration if you use magic.
- provide the Happy! buff to players within a 50-tile radius, which grants a +10% movement speed bonus and 17% reduction in enemy spawn rate.
- Always bring with you at least one stack of Health Regeneration is not a good idea.
, , , or before doing anything: relying only on natural
- The same goes for , , , or , if you use Magic.
- It is suggested to build houses for the thorns-like effect, while the latter can heal and remove debuffs instantly, at the cost of some . and the NPCs in your arena. The former casts the buff, which increases your defense and provides you with a
- Bosses are displayed on the Minimap: Follow the boss's icon to track it when you're struggling to find it. You can identify the boss icons by checking their respective wiki pages.
- Once you have freed the Dungeon, you can use to enhance your arena with and helpful and . The former help to damage the enemies, though be careful to set them up correctly in order not to hurt yourself during the battle. The latter will spawn heart and star pickups, respectively. Connect these devices to . in the
- It may be useful to summon and kill the Eye of Cthulhu before summoning any harder boss in order to spawn an extra one-use pool of hearts.
- Remember to use the , , , and before you go to explore or battle Bosses / Invasions. These will give class-specific boosts that are useful to take. They respectively give , , , and .
Terrain preparation[edit | edit source]
As with all bosses, an arena made out of Wooden Platforms greatly increases your mobility, and it will also shut down the Prime Cannon. You will want 10-15 rows of Platforms, each around 50 or so blocks long. The platforms should be suspended off the ground to prevent the Prime Cannon's grenades from detonating too close to you. A solid ceiling should be avoided since Skeletron Prime will often retreat a fair distance when not using his spinning attack.
Gearing up[edit | edit source]
Armor[edit | edit source]
- and greatly increase offensive stats, with the latter having a set bonus that provides some extra damage.
- and have great defensive set bonuses and acceptable stats.
- If you have already defeated a Mechanical boss, becomes a great choice.
Weapons[edit | edit source]
For melee users:
- The , or the with the are all very strong choices.
- The Underground Snow biome. fires a spinning scythe projectile that will pierce Skeletron Prime and can be acquired from mobs in the
- Once you have defeated The Destroyer, the s can be very helpful with their long range.
- Also, if you manage to acquire them, s are a very effective weapon, due to their high damage and speed.
- The is also an excellent choice.
For ranged users:
- The Holy or Ichor arrows for high damage. or , or if another mechanical boss has already been defeated, the can be easily obtained. Combine them with
- The is a very powerful shotgun made even stronger with ]s.
- The is a burst-fire weapon with high speed which can be complemented by s.
- The is extremely powerful - especially when combined with s.
- If you have defeated The Destroyer, the is a powerful option due to its insane speed and respectable damage.
- The and are both very strong with s.
- It is recommended to use a secondary weapon with ammo, as the debuff will make it significantly more vulnerable to damage.
For Magic users:
- You can use the which functions similarly to Crystal Bullets and deals high damage.
- The is a very strong choice with its massive base critical strike chance of 24% and its high damage, should all 3 of its projectiles hit.
- The Meteorite Bars from Pre-Hardmode. is powerful and easy to craft, provided you have some leftover
- The deals little damage but inflicts the debuff, allowing your other weapons to deal even more damage.
- You can use the The Twins. to summon miniature versions of
- The is very useful for defeating the laser and cannon, as they don't move much and allow the spiders to cling for longer.
- The is a great choice if you tend to remain in one area the entire battle.
Accessories[edit | edit source]
- Accessories that increase your mobility such as the Wings are a must. or
- An Emblem for your class can increase your damage output significantly.
- The expert mode exclusive can greatly increase your mobility as well as provide some extra defense.
- The makes all wings significantly faster, which helps when dodging its attacks.
- The also expert mode exclusive will reduce damage taken, making it a powerful choice.
- The increases your base health regeneration and reduces the cooldown on potions, making it a good choice if you have trouble dodging its attacks.
- The or its upgrades make you immune to knockback, preventing Skeletron Prime from knocking you around.
Potions[edit | edit source]
- s are recommended.
- You can also use Turkor the Ungrateful. if you have beaten
- For buff potions, the , and will help out immensely.
- will complement the defense boost of the Ironskin Potion.
- Rangers with Bows should bring along an or two.
- Mages greatly benefit from s and s.
- Damage increasing potions like the and are good for everybody.
- The increases your max health and allows you to take more hits.
- A will help with extra damage, even non-summoners can benefit from having a summon from something like the .
Tips[edit | edit source]
- When using Summon weapons, it is recommended to use the targeting function to focus one arm at a time and reduce the threat Skeletron Prime poses. Simply right-click near one of the weapons to target it and your minions will prioritize that arm.