The Destroyer

Each segment fires lasers at the player, and damaged segments launch Probes, which are independent flying enemies that also fire lasers.^[1] In Hardmode, the mechanical boss known as The Destroyer presents a greater challenge than the Eater of Worlds.^[1] Because all of its segments draw from one health bar, it is impossible to eliminate any single segment on its own.^[1] The Destroyer has a maximum life of 80000 in Classic mode, 120000 in Expert mode, and 153000 in Master mode.^[6]

Whip debuffs are the only debuffs that can affect The Destroyer; all others are ignored.^[6]

Quick Facts

Type: Boss Burrowing Enemy
Environment: Surface + Night Space + Night
AI Type: The Destroyer AI
Max Life: 80000 / 120000 / 153000
KB Resist: 100%
Immune to: All debuffs except whip debuffs
Coins: 12 Gold (Dropped by Treasure Bag [ 1 ])

Facts from the infobox of The Destroyer on the Terraria Wiki (wiki.gg, CC BY-NC-SA 4.0).

Manual

A Mechanical Worm used during the nighttime hours of 7:30 PM to 4:30 AM will call forth The Destroyer.^[2]

Random

When a natural spawn is triggered, a status message appears and a hidden timer of 1 minute 21 seconds counts down, with the boss arriving at 8:51 PM.^[3]

Segments

The Destroyer's head deals 70 damage in Classic mode, 280 in Expert mode, and 420 in Master mode.^[4]

Trivia

According to Terraria lore, The Destroyer is one of three mechanical recreations of Cthulhu's missing organs, specifically a simulacrum of Cthulhu's spine.^[5] The Destroyer's body consists of 82 segments from head to tail, stretching 239 tiles in total.^[5] Only the Moon Lord surpasses The Destroyer in total health among all bosses.^[5]

References

"The Destroyer" (opening section) - Terraria Wiki on wiki.gg, revision 1033162 terraria.wiki.gg
"The Destroyer", section "Manual" - Terraria Wiki on wiki.gg, revision 1033162 terraria.wiki.gg
"The Destroyer", section "Random" - Terraria Wiki on wiki.gg, revision 1033162 terraria.wiki.gg
"The Destroyer", section "Segments" - Terraria Wiki on wiki.gg, revision 1033162 terraria.wiki.gg
"The Destroyer", section "Trivia" - Terraria Wiki on wiki.gg, revision 1033162 terraria.wiki.gg
"The Destroyer" (infobox) - Terraria Wiki on wiki.gg, revision 1033162 terraria.wiki.gg

Text adapted from the Terraria Wiki on wiki.gg (CC BY-NC-SA 4.0), used by Freedom Games LLC, the operator of wiki.gg and Codexery. Page: The Destroyer (contributors). Codexery summarised the page: each numbered sentence above was checked against the wiki section it cites before publication, and this entry is shared under the same licence.