It is normal when first piloting a Prawn suit to feel a sense of limitless power. Prawn operators receive weeks of training to counteract this phenomenon. You will have to make due with self-discipline.


― PDA, Dialogue


The Prawn Suit (Pressure Re-Active Waterproof Nanosuit) (Mk.III) is a vehicle. It is a powered suit of armor, designed for use in both the deep sea and in space - capable of affording protection to a pilot whilst maintaining maximum dexterity with hydraulic limbs and a reinforced canopy. It is not directly worn; rather, it is a large frame that can be piloted in a seated position.

The Prawn Suit has its own beacon, similar to the Cyclops and Seamoth. Unlike the other vehicles, however, the Prawn Suit walks along the ocean floor, using thrusters to move vertically.

Before the player can construct a Prawn Suit, they must first scan its fragments. Four large Prawn Suit fragments can be found in the Aurora's Prawn Bay, which each count for 25% of the blueprint. Many smaller Prawn Suit fragments can be found in various Wrecks, which each count for 5%.

A 3D model of the Prawn Suit can be found on Sketchfab.


The Prawn Suit can be used to explore dark and/or deep places. The Prawn Suit has a base crush depth of 900 meters and a fully upgraded crush depth of 1700 meters, making it the best deep exploration vehicle. However, due to its limited vertical mobility, it may be wise to use a Cyclops to transport the Suit, as certain biomes such as the Blood Kelp Zone or Underwater Islands may be difficult for it to get out of on its own.

Upon entering the Prawn Suit, the player's oxygen stores will be replenished - unless the Prawn Suit is depleted of energy, as is the case with the Seamoth and the Cyclops. In this case, the oxygen will run out slowly until the point where the player is losing oxygen within the Prawn Suit itself.

The Prawn Suit has a health meter - reaching zero will cause the Prawn Suit to malfunction catastrophically and explode. Unlike the Seamoth however, the Prawn Suit is heavily armored and can endure most things that would otherwise severely damage or destroy a Seamoth, such as a Reaper Leviathan's grip.

Alternatively, the Prawn Suit can be used on land for exploration of dangerous areas. (Keep in mind that the Prawn Suit is not as mobile on land. The thrusters are nearly useless, even if the Prawn Suit Jump Jet Upgrade is equipped.) As the suit is immune to heat and poison (though not direct contact with lava), the Prawn Suit is also great for collecting resources in hazardous areas such as near Lava Geysers, or collecting Gas Pods, or for simple protection against most low-to-mid tier predators.

The Prawn Suit requires Energy from two Power Cells to operate. The Prawn Suit can be docked at a Cyclops or a Moonpool to recharge.

The Prawn Suit comes equipped with a 6x4 inventory space, accessed from outside in the rear. Any items picked up with the claw arm or drilled with the drill arm are automatically placed in the Suit's inventory if there is room. Bear in mind though that there is a slight delay between clicking and activating the respective claw arm on the suit, so a player may accidentally punch a creature they are trying to collect or miss a falling item.


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How to Use

  • Enter the Prawn Suit with LMB.
  • Pilot the Prawn Suit using the same controls as walking on dry land or in a Seabase.
  • Exit the Prawn Suit with E. The Prawn Suit will assume a "sitting" position when not in use, allowing the player to access its Power Cells, storage compartment, and upgrade panel.
  • LMB and RMB to use the arms. LMB for the left arm, and RMB for the right arm.
  • SPACE to jump, hold for the thrusters. Using the thrusters will deplete their internal energy, which recharges by itself when not in use.

Upgrades and Customization

The Prawn Suit can be customized with the Vehicle Upgrade Console. The player can use the console to change the Prawn Suit's name and color scheme.

The Prawn Suit's upgrades can be accessed via a panel on its upper left. Opening the panel reveals four slots for upgrades, like the Seamoth, and two additional slots for arm upgrades, which can be identified by their purple color.  

Three of the Seamoth's upgrades (Storage Module, Hull Reinforcement, and Engine Efficiency Module), are cross-compatible with the Prawn Suit.

Prawn Suit Pressure Compensator Mark 1
Prawn Suit Depth Module MK1
Prawn Suit Depth Module MK2
Prawn Suit Depth Module MK2

Increases the Prawn Suit's maximum crush depth.

Depth Module Crush depth
None 900 meters
Prawn Suit Depth Module MK1 1300 meters
Prawn Suit Depth Module MK2 1700 meters
Seamoth Storage Solution

Storage Module

Adds one row of 6 storage spaces to the Prawn Suit's inventory. The Prawn Suit's inventory becomes 6x5 with one Storage Module, 6x6 with two, 6x7 with three and 6x8 with four.

Seamoth Hull Reinforcement

Hull Reinforcement

Permanently hardened chassis before collision, eliminating damage under normal conditions.

Seamoth Power Efficiency Module

Engine Efficiency Module

Recycles heat by-product to minimize power inefficiencies. Each module reduces power use by 15%.

Exosuit Thermal Reactor Module

Prawn Suit Thermal Reactor

Generates power to recharge the Prawn Suit's Power Cells in areas that are 35º or higher.

Exosuit Jet Jump Upgrade

Prawn Suit Jump Jet Upgrade

Greatly increases the power of the thrusters, giving faster acceleration and a much higher boost.

Prawn Suit Claw Arm Module

Prawn Suit Claw Arm

Equipped as the standard arm on the Prawn Suit. Can pick up objects or administer a quick strike, useful for smashing rocks for resources or fending off predators. Items it picks up are transferred to the Prawn Suit's storage.

Exosuit Drill Arm

Prawn Suit Drill Arm

Allows for drilling of large resource deposits. Once drilled, these deposits break down into pieces that can be picked up. It is also an effective weapon against larger creatures.

Exosuit Grappling Arm Module

Prawn Suit Grappling Arm

Can fire a grapple onto solid objects such as rocks or the Cyclops, which pulls the player towards it. It can also attach to small to large creatures, items, and so on.

Propulsion Cannon for Exosuit

Prawn Suit Propulsion Cannon

Functions identically to the Propulsion Cannon tool, except as an arm, it can lift heavier items. Items can be loaded into the Propulsion Cannon arm by pressing F.

Prawn Suit Torpedo Arm

Prawn Suit Torpedo Arm

Stores up to six torpedoes at a time. Works just like the Seamoth Torpedo launcher.


Upon entering:

Prawn Suit Enter

Data Bank Entry

The Pressure Re-Active Waterproof Nano Suit is a range of mechs designed to protect the pilot from extreme environments. The Mk.III is the latest iteration, and has so far only been rolled out by Alterra for their own high-value, phasegate-related operations.

  • The suit is fully insulated from the outside environment
  • Powerful hydraulic limbs allow for manipulation of objects and powered traversal of the environment
  • Rear-mounted thrusters provide maneuverability in low-gravity environments
  • A range of modifications are available to facilitate resource extraction and enhanced exploration

'The Prawn Suit: It's got you covered.'



  • The former name for the Prawn Suit was the P.R.A.W.N Suit, and in earlier development, Exosuit.
  • The idea for the Prawn Suit may be taken from the Exosuit from Natural Selection 2, another game made by Unknown Worlds Entertainment.
  • Early animations for the Prawn Suit can be viewed here and here.

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