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Crag Field

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The Crag Field is a rocky, resource-rich biome in Subnautica located between the Grand Reef, Crash Zone, and Kelp Forest. It features large geological formations, Bonesharks, and serves as a key location for story progression including Lifepod 7 and Sea Emperor Juvenile encounters.

Last refreshed May 18, 2026

Crag Field

Crag Field Biome

Overview

FeatureDetails
TypeSurface
Depth Range45 - 560 meters
Temperature Range13.8°C - 24.9°C
Coordinates52.0, -309.3, -1433.3
Harvesting NodesLimestone Outcrop, Sandstone Outcrop, Shale Outcrop

The Crag Field is a rocky biome dominated by large geological formations. It is situated between the Grand Reef, the Crash Zone, and the Kelp Forest, and shares its border with one of the Grassy Plateaus. To the south lies the Crater Edge, and to the north are the engines of the Aurora.

This deep biome features large rock spikes and rippling stone hills, bearing resemblance to the older Grand Reef. All of this terrain is formed atop a massive crag dropping down into the biome.

Description

The Crag Field is a resource-rich biome with some low-level predators. Groups of Bonesharks are frequent in the area, along with the occasional Mesmer passing by. Tiger Plants can also be found in this biome, camouflaged and mostly hidden in the grasses within the rock structures. The biome features a great abundance of minerals, both in node and deposit form, as well as other resources.

A few pods of Reefback Leviathans can be seen drifting in the water above the Crag Field.

Story Elements

  • Lifepod 7: Found within the Crag Field.
  • Alien Arch Cache: Located in the deeper areas of the Crag Field.
  • Sea Emperor Juvenile: One of the five Sea Emperor Juveniles can be found here after the Sea Emperor Leviathan Eggs have been hatched.

Resources

  • Copper Ore
  • Diamond
  • Eye Stalk Seed
  • Gold
  • Large Silver Deposit
  • Large Quartz Deposit
  • Lithium
  • Metal Salvage
  • Quartz
  • Salt Deposit
  • Titanium

Fauna

Flora

  • Eye Stalk
  • Pink Cap
  • Speckled Rattler
  • Tiger Plant

Rock formations in the Crag Field Rock formations in the Crag Field

A small rock formation in the biome A small rock formation in the biome

More small rock formations More small rock formations

A twisting rock formation A twisting rock formation

Another area featuring large rock formations Another area featuring large rock formations

More large rock formations in the Crag Field More large rock formations in the Crag Field

The Border with the Crash Zone The Border with the Crash Zone

The Border between the Grand Reef and the Crag Field The Border between the Grand Reef and the Crag Field

The Border between the Grassy Plateaus and the Crag Field The Border between the Grassy Plateaus and the Crag Field

The Border between the Kelp Forest and the Crag Field The Border between the Kelp Forest and the Crag Field

A Boneshark entranced by a Mesmer A Boneshark entranced by a Mesmer

A Tiger Plant A Tiger Plant

A Shuttlebug roaming above the rocks A Shuttlebug roaming above the rocks

The biome teeming with Bonesharks The biome teeming with Bonesharks

One of the many resources in this biome One of the many resources in this biome

A Boneshark wandering about the rock formations A Boneshark wandering about the rock formations

A Shoal of Boomerang swimming through the Crag Field A Shoal of Boomerang swimming through the Crag Field

Flora native to the Crag Field Flora native to the Crag Field

A deep area of the Biome A deep area of the Biome

Sandstone Outcrop, Limestone Outrcrop and a large Silver Ore deposit in the Crag Field Sandstone Outcrop, Limestone Outcrop and a large Silver Ore deposit in the Crag Field

Fauna and resources can be encountered 630 meters below sea level in the Crag Field when following the steep Crater Edge, near the Grand Reef border, marking the "true" end of the Biome Fauna and resources can be encountered 630 meters below sea level in the Crag Field when following the steep Crater Edge, near the Grand Reef border, marking the "true" end of the Biome

Trivia

  • The Crag Field's terrain textures at the sea bed are identical to those found in the Sea Treader's Path.
  • The Crag Field was the last biome to be added to Subnautica.

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