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Sigil Key Epsilon

Sigil Key Epsilon is a rare key in Crystal Idle.
One of five mystery keys. Maybe it opens the dungeon. Maybe it doesn't.

Sigil Key Epsilon
Type: keyRarity: Rare

How to get

No regular source: this item comes from events, quests, rewards or other special sources.

Same type: key

Sigil Key AlphaSigil Key BetaSigil Key DeltaSigil Key GammaStormforge KeyRuned Dungeon Key

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Data generated from the game code, version 3.7.0 (2026-11-01).