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Petit PlanetField Guide

Creature record

Fire Urchin - Petit Planet Creature

Where to find Fire Urchin in Petit Planet: habitat, season, time, weather, catch method, size range and sell values from the Final Beta.

Final Beta dataVerified October 30, 2026Sea UrchinShore-DwellerAll RegionsMain planet
Stellar#018Shore-Dweller

Fire Urchin

It's venomous. Getting stung feels like a burn.

Intertidal Zone Year-Round Daytime
On this page
Type
Sea Urchin
Group
Ever-Surging Tides
Habitat
Intertidal Zone
Distribution
All Regions
Season
Year-Round
Time
Daytime
Weather
Any Weather

Size & value

10 – 17 cm

Species size range recorded in the Final Beta.

★★★ large278 Dough
★★ medium235 Dough
★ small214 Dough

Quality and star rating both affect the sale price. MAX-size catches have a glowing aura.

Use the Shellfish Tongs. The exact approach depends on the creature’s category and, for shore-dwellers, its species type.

  1. Equip the Shellfish Tongs and search the intertidal zone along the beach.
  2. Sea urchins are mostly stationary and drift with the waves. Pick them up with the tongs.

First catch: the creature is added to the Omnidex. Offer it to Mors at the Omni-Gallery to put it on display and unlock its Omnipedia entry.

Habitat: Intertidal Zone. Distribution: All Regions.

Season: Year-Round. Time: Daytime. Weather: Any Weather. If two of those tags are restrictive, check the creature tracker before you set out.

Intertidal Zone · Astropyga radiata

The fire urchin is entirely bright red with blue bioluminescent spots that flicker like starlight in its center. Though strikingly beautiful, being pricked by its spines causes an intense burning pain.

Because of this, many crabs will carry fire urchins on their backs, turning them into their personal "flame shield."

Where this data comes from

Compiled from official Petit Planet announcements and the community-maintained Petit Planet Wiki (CC BY-SA 4.0), then checked against the Final Beta build. Data snapshot: October 30, 2026. Values can change before the December 4, 2026 launch.

Fan-made reference. Game names and assets belong to HoYoverse. See sources & credits.

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↑ ↓ to browse · ↵ to openData snapshot · Oct 30, 2026