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Expert mode icon.png
Expert Mode-Only Content: This information applies only to Expert Mode and Expert Mode worlds.
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Desktop/Console/Mobile/Switch/tModLoader-Only Content: This information applies only to the Desktop, Console, Mobile, Switch, and tModLoader versions of Terraria.
Ancient DoomHardmode exclusive
Ancient Doom.png
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
AI TypeAncient Doom AI
Damage30/45/67 (melee)
60180402 (Prophecy's End)
Max Life500/625/796
KB Resist100%
Immune toConfused

Ancient Doom is one of the Lunatic Cultist's attacks in Expert Mode and Master Mode. It will only appear when the boss is at relatively low health (Less than 50%). A short time after creation or upon death, the Ancient Doom will burst and send slow-moving "Prophecy's End" projectiles in all four cardinal directions. These projectiles pierce and cannot be destroyed by weapons, and they deal significantly high amounts of damage, especially in Master Mode.


  • Despite having the hurt sound of a Zombie or any type of Slime, it has the kill sound of a Ghost or Wraith.
    • Another two enemies that follow this pattern, with a different hurt sound to the kill sound, are the Possessed Armor and Mimics.