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Eternia Crystal

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Desktop versionConsole version Desktop/Console-Only Content: This information applies only to the Desktop and Console versions of Terraria.
Eternia Crystal
  • Eternia Crystal item sprite
Stack digit 9.pngStack digit 9.png
Statistics
Type
TooltipPlace in the Eternia Crystal Stand to summon Etheria's portals
Rarity3*Rarity level: 3
BuyT1: 2500*25
T2: 10000*1
T3: 40000*4
SellT1: 500*5
T2: 2000*20
T3: 8000*80
Research3 required
Not to be confused with Eternia Crystal (NPC).

Eternia Crystals are purchased from the Tavernkeep for 2500*25 (pre-Mechanical Bosses), 10000*1 (post-Mechanical Bosses) or 40000*4 (post-Golem). The Discount Card and Greedy Ring have no effect on its price. Because of the price increase, you may wish to stock up before defeating the mechanical bosses. When used in the Eternia Crystal Stand, the Old One's Army event begins.

Due to the price increasing after Golem/mechanical bosses have been defeated, it is possible to buy Eternia crystals beforehand and sell them after the battles, netting a total profit of 55 silver per crystal.

  • This is not possible on the Switch version; they sell for 500*5 even post-Golem when the full T3 DD2 item selection is unlocked..

The Event lasts for varying lengths depending on game progress:

The waves begin easy and get progressively more difficult until the final wave (wave 7 post and pre-golem) there is a boss as well as the invasion creatures. Defeating the boss finishes the wave, however.

History[edit | edit source]