Terraria Mods Wiki
  • Eridanium item sprite
Stack digit 9.pngStack digit 9.png
TypeCrafting material
TooltipA shard of cosmic power
RarityRarity level: 11
Dropped by
Entity Quantity Rate
Eridanus, Champion of Cosmos 10 100%

The Eridanium is a crafting material dropped by Eridanus, Champion of Cosmos. It is used solely to craft the Force of Cosmos and Eridanus Armor.


Used in[]

ResultIngredientsCrafting station

Force of CosmosForce of Cosmos
Fargo's Mod/Crucible of the CosmosCrucible of the Cosmos
Eridanus HatEridanus Hat
Eridanus BattleplateEridanus Battleplate
Eridanus LegwearEridanus Legwear


In previous versions, Eridanium was a drop from the Moon Lord and were used for a variety of post Moon Lord weapons and accessories.


  • 1.4: Renamed from "Lunar Crystal" to "Eridanium"
  • 1.3.92: Re-added as a drop from Eridanus.
  • 0.7.0: Sprite updated.
  • 0.6.0: Introduced.
Fargo's Soul Mod:
Slime King's Slasher (Fargo's Mod).png Weapons • Squeaky Toy (Fargo's Mod).png Accessories • True Mutant Body (Fargo's Mod).png Armor • Sands of Time (Fargo's Mod).png Tools • Celestial Seal (Fargo's Mod).png Consumables • Top Hat Squirrel (Fargo's Mod).png Town NPCs • Mutant's Gift (Fargo's Mod).png Eternity Mode • Forbidden Enchantment (Fargo's Mod).png Guides