SUBNAUTICA 2 GUIDEDeep-sea field manual
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Grav Trap (Below Zero)

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The Grav Trap is a deployable item in Subnautica: Below Zero that uses artificial gravity to attract small objects and fauna. It serves as a passive fish farm or collection tool for light items.

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Grav Trap (Below Zero)

Grav Trap (BZ)

PropertyValue
CategoryDeployables
DescriptionUses artificial gravity to attract light objects and small creatures.
Blueprint SourceFragments
Acquired FromFabricator
Build Time4 seconds
Size4 (2×2)
Debug IDgravsphere

Overview

The Grav Trap is a deployable crafted using the Fabricator. The Grav Trap can only be crafted after its blueprint has been acquired by scanning its Fragments.

It attracts up to twelve small objects and Fauna using artificial gravity. Its main uses are to ensnare fast-moving fish. The Grav Trap can be placed in an environment with an abundance of fish to act as a fish farm, although an Alien Containment tank is much more reliable.

Usage

The Grav Trap takes up 2×2 item slots in the player's Inventory. Although it requires a Battery to be built, it does not use energy. The Grav Trap attracts fish and any small item that can be picked up manually within reach. Plant material, such as Creepvine Seed Clusters, are the exception. It is best to place it on the ocean floor.

It is suggested to remove the objects caught by the Grav Trap before picking up the sphere. If the player is in the open ocean, currents may send the objects 30 meters or more away if the player picks up the Grav Trap with objects still attached.

Blueprint Acquisition

The blueprint for this item is unlocked by scanning fragments in the Arctic Kelp Forest and the Shallow Twisty Bridges. It is crafted in the Fabricator.

Fragments

Grav Trap Fragment (BZ)

ItemLocationQuantityDebug ID
Grav Trap FragmentArctic Kelp Forest2gravspherefragment
Grav Trap FragmentShallow Twisty Bridges2gravspherefragment

Recipe

Fabricator (BZ)

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