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11 Prawn Suit
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33 The P.R.A.W.N. Suit (Pressure Re-Active Waterproof Nanosuit) is a bipedal exosuit designed for extreme deep-sea operations. It appears in both the original Subnautica and Subnautica: Below Zero. What appears to be a Prawn Suit was visible in the October 2024 Subnautica 2 cinematic trailer, though its return has not been officially confirmed.
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55 Design
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77 The Prawn Suit is a humanoid mech roughly four meters tall. Unlike the Seamoth and Cyclops, which swim through the water, the Prawn Suit walks along the ocean floor on two legs and uses jet boosters mounted on its back for short vertical hops. This ground-based movement gives it superior stability in deep, high-pressure environments where other vehicles cannot operate.
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99 SpecificationValueCrew capacity1 pilotDefault crush depth900 metersMaximum crush depth (upgraded)1,700 metersStorage24 slots (6x4 grid)Arm slots2 interchangeable armsUpgrade slots4 module slotsPower2 Power CellsMovementBipedal walking + jet boost
1010 Arm attachments
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1212 The Prawn Suit's defining feature is its two interchangeable arm slots. Each arm can be swapped at a Moonpool or inside the Cyclops. The default arm is the Claw Arm.
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1414 ArmFunctionClaw Arm (default)Grabs objects and punches creatures. Basic melee interaction.Drill ArmMines large resource deposits that cannot be collected by hand. Essential for late-game resources like Kyanite.Grapple ArmFires a grappling hook that attaches to terrain, allowing the Prawn Suit to swing, climb, and traverse vertical environments.Torpedo ArmLaunches torpedoes. Less commonly used than other arms.Propulsion CannonGrabs and launches objects at range.
1515 The most popular arm combination among players was the Drill Arm and Grapple Arm. The Grapple Arm allowed rapid traversal of vertical cave systems, while the Drill Arm harvested resources. This combination effectively turned the Prawn Suit into a deep-sea mining platform.
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1717 Depth capability
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1919 The Prawn Suit's default crush depth of 900 meters already exceeds the maximum upgraded depth of the Seamoth. With depth modules, it can reach 1,700 meters, the deepest point in the original game. This made the Prawn Suit the vehicle of choice for the endgame, where players needed to access the Inactive Lava Zone and Lava Lakes.
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2121 ModuleCrush DepthNo module (default)900 metersDepth Module MK11,300 metersDepth Module MK21,700 meters
2222 In Below Zero
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2424 The Prawn Suit returns in Below Zero with largely the same design. It is used for deep-sea exploration in Sector Zero on Planet 4546B. The Seatruck includes a dedicated Docking Module that lets the Prawn Suit attach to the Seatruck's modular train, replacing the Cyclops docking bay from the original game.
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2626 In Subnautica 2
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2828 The October 2024 cinematic trailer for Subnautica 2 briefly showed what appeared to be a Prawn Suit or a Prawn Suit-like vehicle. Unknown Worlds has not officially confirmed or denied its inclusion. The Tadpole and Dive Elevator are the only confirmed vehicles for Subnautica 2 alongside the Wakemaker booster. If the Prawn Suit does return, its role as a deep-sea walking platform for mining and combat avoidance would complement the Tadpole's swimming-focused exploration.