How do I catch Starlight Nautilus in Core Keeper?

Starlight Nautilus is a legendary fish found in the Passage biome. It can be obtained through: fishing.

Fish

Starlight Nautilus

LegendaryPassageSell 21

Starlight Nautilus is a legendary fish in Core Keeper found in the Passage biome. Can be used as a cooking ingredient (Fish).

A mysterious living fossil that seems to have fused with precious metals and gemstones to ascend to a higher state of being.

Data updated March 16, 2026StarlightNautilus #9733

Type: FishAdjective: SparklingNoun: Starlight

Biome: Lava

How do I catch Starlight Nautilus in Core Keeper?: Starlight Nautilus is a legendary fish found in the Passage biome. It can be obtained through: fishing.