Eternia Crystal

From Terraria Wiki
Jump to navigation Jump to search
Desktop versionConsole versionMobile version
Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.
Eternia Crystal
  • Eternia Crystal item sprite
Stack digit 9.pngStack digit 9.pngStack digit 9.pngStack digit 9.png
TooltipPlace in the Eternia Crystal Stand to summon Etheria's portals
RarityRarity level: 3
BuyT1: 25 SC
T2: 1 GC
T3: 4 GC
Sell5 SC
Research3 required
  • Internal Item ID: 3828 (Desktop, Console and Mobile versions)
This article is about the Eternia Crystal item. For the NPC, see Eternia Crystal (NPC).

Challenging the Old One's Army is rather simple. They are attracted to the power of the Eternia Crystals, and that can be used to bait them out.

Emote Town Bartender.gif The Tavernkeep

The Eternia Crystal is an event-summoning item. When used in the Eternia Crystal Stand while under the correct terrain requirements, the Old One's Army event begins. The Eternia Crystal can be purchased from the Tavernkeep for 25 SC (pre-mechanical bosses), 1 GC (post-mechanical bosses), or 4 GC (post-Golem).


  • Players may wish to stock up on Eternia Crystals before defeating the mechanical bosses, in order to save coins.