Subnautica Wiki
This article is about the Crabsquid. You may be looking for the Crabsnake.

The Crabsquid is a large, aggressive fauna species. It can be found in the Northern Blood Kelp Zone, the Deep Grand Reef and the Lost River.


The Crabsquid's main body has two layers: a translucent, bulbous sac resembling a comb jellyfish's body, and a hard brown green body within, similar to that of a real life squid's mantle. The Crabsquid's head consists of four, large blue eyes with black pupils and an oddly shaped mandible below them. The Crabsquid's legs resemble those of a horseshoe crab, though tipped with small fins. Its ten limbs are brown-colored and smooth. The two shortest limbs near its mouth form a pair of comparably small pincers of which it uses to attack by raising its legs.


The Crabsquid swims by continuously inflating and deflating its transparent membrane, allowing for sudden bursts of movement, however it can also walk around on the seabed using its two sets of four legs. Upon being approached, the creature will launch an attack, dealing 40 damage to the player. It can also be observed catching and eating smaller fauna, and attacking Warpers. Similar to the Boneshark, the Crabsquid is attracted to light and will follow certain light sources, meaning that it can be distracted using lights from the Cyclops, Seamoth, Prawn Suit, Seaglide, Flashlight or Flares. However, using a vehicle's light will usually end up with the Crabsquid disabling it.

The Crabsquid attacks light sources. If light is shone at a Crabsquid they will retaliate with an EMP blast, temporarily disabling electronicsvehicles and Seabase power. Crabsquids also will physically attack light sources (such as vehicles and seabases) by slashing them with their legs. These factors makes it ill-advised to build near an area inhabited by Crabsquids or leave vehicles near Crabsquids. The Prawn Suit is particularly susceptible to Crabsquid attacks as it is the only vehicle that cannot turn off its lights.

The electromagnetic pulses are emitted as a highly concentrated ring-shape of green-colored electricity. In terms of game mechanics, this temporarily reduces the charge of any Battery or Power Cell affected to 0%: after a short time, it will be restored to its original level. If a vehicle is affected by the EMP, its on-board Oxygen production will temporarily cease.

If the player approaches the Crabsquid in the Seamoth within its line of sight, the creature will chase the submersible a short distance and attack, with each hit taking off 20% of the vehicle's health. Crabsquids are also among the few creatures that can damage a Cyclops: while the damage they deal is fairly low and it takes repeated hits to achieve hull damage, their EMP attack still works on the vehicle and its low speed can make it tricky to get away.

The Crabsquid frequently emits loud clicking sounds.

Energy Value

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Crabsquid Egg.pngArrow-right (1).pngBioreactor.pngArrow-right (1).pngEnergy.png×259


Data Bank Entry


This large predator can be found in deep waters, where it lurks amongst the blood kelp and membrain trees in search of prey. It can deploy a powerful electromagnetic pulse to defend itself.

1. Limbs:
10 limbs feature different appendages for swimming, walking, hunting, and possibly even tool use. Creatures caught in its grasp are expertly butchered and quickly consumed.

2. Behavior:
Rays and other illuminated herbivores are its usual prey, and it will approach and attack any light source in the vicinity. Its EMP blast was likely developed as a response to predation by creatures with electrical hunting mechanisms.

3. Intelligence:
While crabsquids appear to have large brains and a resemblance to the intelligent squids of earth, the organ inside the creature's head is in fact its stomach, which it must fill with startling regularity.

Assessment: Neutralizes electrical equipment - Lights attract its (unwanted) attention



  • The sounds of the Crabsquid were created using the sounds of a creaking door, dolphins, and a stock alien sound.[1]
  • The Crabsquid's Data Bank entry implies that it developed its EMP blast to counter the other active predator in its area, Ampeels.
  • The large organ inside the Crabsquid's body, according to the PDA, is the stomach and not its brain.
  • The Crabsquid can walk on land if spawned there.
  • As the name suggests, the design draws heavy inspiration from crabs and squids. It is a mix between a crustacean and a cephalopod.

Spoiler alert: The following section contains story related material.