Eternia Crystal

   Desktop/Console/Mobile-Only Content: This information applies only to the Desktop, Console, and Mobile versions of Terraria.

Eternia Crystal

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Statistics

Type	Event summon
Tooltip	Place in the Eternia Crystal Stand to summon Etheria's portals
Rarity	03*
Buy	T1: 25 T2: 1 T3: 4
Sell	T1: 5 T2: 20 T3: 80
Research	3 required

• Internal Item ID: 3828

This article is about the Eternia Crystal "item". For the NPC, see Eternia Crystal (NPC).

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

Tips

• Players may wish to stock up on Eternia Crystals before defeating the mechanical bosses, in order to save coins.
• Due to the price increase, it is possible to buy Eternia Crystals beforehand and sell them after the battles, netting a total profit of 55 per crystal.
  • This is not possible on the  Switch version; they sell for 5 even post-Golem.

History

 Desktop version

• Desktop 1.3.4.1: Name changed from "Elder Crystal" to "Eternia Crystal".

• Desktop 1.3.4: Introduced.

 Console version

• Console 1.17: Introduced.

 Switch version

• Switch 1.0.1096.2: Introduced.

 Mobile version

• Mobile 1.4.0.5.0: Introduced.