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Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
PredictorHardmode exclusive
Classic mode icon.png Classic
Expert mode icon.png Expert
Master mode icon.png Master
AI TypeFighter AI
Damage80/160/240 (melee)
120180270 (Nebula Piercer)
Max Life700/1400/2100
KB Resist40%/46%/52%
BannerPredictor BannerPredictor Banner(Desktop, Console and Mobile versions)
Immune toShimmering

The Predictor is a Hardmode, post-Lunatic Cultist enemy that spawns around the Nebula Pillar during the Lunar Events. Its main attack is firing five Nebula piercer projectiles at the player, which travel in a straight line in a tight spread.


  • The Predictor will not attempt to attack the player if it does not have a direct line of sight to them, but will never cancel its attack, even once killed.
  • If the player hides behind solid blocks, the Predictor's projectiles will still "see" them.


  • The Predictor, Selenian, Stargazer and Vortexian all share very similar sprites.
  • It seems that, when preparing to shoot, its projectiles try to predict where the player moves, giving its name a meaning.Verify
  • The name "Predictor" is likely a reference to the 1987 sci-fi action film Predator, which features a futuristic trophy hunter alien known as the "Predator", who is the main antagonist of the film. Not only does the name resemble the Predator, but its design seems to draw inspiration from the Predator, being humanoid with a large, brain-shaped head.
  • The BestiaryBestiary entry for the Predictor: "The cosmic power held by these humanoid warriors grant them psychic abilities, in which they use to accurately shoot down foes."


  • Desktop 1.4.4: The maximum number of active Nebula Predictors at any one time is increased from 2 to 3.