Calamity Mod Wiki
Astral Beacon
  • Astral Beacon.png
  • Astral Beacon placed graphic
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
  • Pickaxe icon.png 200%
PlaceableTango Tick1.png
Dimensions5 wide × 4 high
Use time14 Very Fast
TooltipSummons Astrum Deus in exchange for specific offerings
Map color#80809E ●
RarityRarity Level: 9
SellNo value

The Astral Beacon is a Hardmode furniture item that can be crafted or found naturally on a pillar of Astral Monolith after the Astral Infection has generated. When right-clicked during the night, it is used to summon Astrum Deus while a Titan Heart or Starcore is in the player's inventory. Upon successfully summoning the boss, one Titan Heart is removed from the player's inventory if the player does not have a Starcore, and two stars rise up from the beacon, summoning Astrum Deus shortly after. If used during the day, the player is given a status message "The god of the stars rejects your offering. The ritual can only be performed at night."



Crafting Station
Ancient ManipulatorAncient Manipulator
Aureus CellAureus Cell5
Astral StoneAstral Stone30
Astral BeaconAstral Beacon1


  • Astral Beacons cannot be destroyed by explosives.
  • Astral Beacons can be highlighted by the Spelunker Potion effect.
  • If a meteorite hits the Astral Beacon, it may be destroyed and the player will have to craft another.