This guide explains how to summon the Skeletron Prime in Terraria, detailing the steps for crafting and using the Mechanical Skull, as well as the conditions for its natural spawn. Each method outlines the required materials, nighttime conditions, and instructions to initiate this challenging boss fight.
Skeletron Prime is a Hardmode mechanical boss in Terraria, serving as an upgraded version of Skeletron. It features multiple limbs with different attacks, including melee, ranged, and spinning abilities, making it a challenging fight in Hardmode. Defeating Skeletron Prime is necessary to progress further, as it unlocks new crafting options and paves the way to later stages of the game.
Notable Drops:
This is the standard method for summoning the Skeletron Prime. The Mechanical Skull is a Hardmode summoning item crafted using materials available after entering Hardmode.
Craft the Mechanical Skull at a Mythril or Orichalcum Anvil and use it at night. Note, that the item cannot be used during the day, and summoning will fail if attempted outside nighttime.
The Skeletron Prime may also spawn naturally with a 1/10 (10%) chance at dusk after a Demon or Crimson Altar has been destroyed, provided it has not yet been defeated at least once in the current world.