One of the random rewards possible from Cursed Tome.

The card choice is skippable.


  • This relic references Codex, a tabletop game made by Sirlin. Nilry's is (almost) Sirlin backwards.

Update History

  • Patch V1.1: The Dealer
    • Fixed issue if cards are queued and turn is ended after an enemy dies, Nilry's Codex can open and cause issues.
  • Weekly Patch 55: Blur
    • Draw, Discard, and Exhaust piles can now be viewed during Codex/Discovery card selection.
  • Weekly Patch 50: The Final Act
    • Fixed issue where viewing relics with Nilrys Codex' popup caused issues with controllers.
  • Weekly Patch 44: Chrysalis
    • All sources of random temporary card generation in combat (like Dead Branch) can no longer generate cards that provide healing.
    • New tip added to indicate that healing cards cannot be generated randomly during combat.
  • Weekly Patch 17: Patched in the Face
    • Seeds are now utilized for Enchirdion and Codex.
  • Weekly Patch 11: A Library of Features
    • Fixed bug where Singing Bowl's +2 HP option appeared for Codex if you opened the map while viewing the cards.
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