How to Get the Prawn Suit in Subnautica: Below Zero
The Prawn Suit needs 4 fragments, and the map pins 10 of them, 3 of those above sea level. It is built at the Mobile Vehicle Bay from 5 Titanium, 4 Copper ore, 4 Ribbon Plant, 2 Lithium, 2 Quartz, 2 Table coral sample, 1 Creepvine seed cluster, 1 Diamond, 1 Gold, 1 Lead. The drill arm costs 4 Diamonds, and the 8 drillable diamond outcrops need that arm.
- Suit fragments4 to scan10 fixed pins
- Above sea level3no dive for the first scans
- Drill arm2 fragments7 fixed pins
- Other armsrandom onlyno fixed pin
The Prawn Suit is the one vehicle with more placed fragments than it needs. This is the order I would follow, read from the fragment pins and the recipe table.
On this page
The 5 steps at a glance
Step 1: Get the Mobile Vehicle Bay
The suit is built at the Mobile Vehicle Bay, whose fragments have no fixed pin. The vehicle overview has the recipe and what the files say about the bay.
Step 2: Scan the 4 suit fragments
Prawn suit unlocks after you scan 4 fragments (4 s a scan). The map holds 10 fixed pins in 5 areas.
You need 4 of 10 placed pieces, so you can skip the deep ones. 3 lie above sea level: Outpost Zero (9 m above sea level), Outpost Zero (9 m above sea level), Tundra void (15 m above sea level). The deepest group is Purple Vents, down to 328 m. The spawner tables do not list this fragment, so every piece you can find is on the map.
| Area | Depth | On the map |
|---|---|---|
| Tundra void | 15 m above sea level | Open pin |
| Outpost Zero | 9 m above sea level | Open pin |
| Outpost Zero | 9 m above sea level | Open pin |
| Lily Pads | 244 m below sea level | Open pin |
| Lily Pads | 250 m below sea level | Open pin |
| Lily Pads | 254 m below sea level | Open pin |
| Delta Island | 274 m below sea level | Open pin |
| Delta Island | 286 m below sea level | Open pin |
| Delta Island | 287 m below sea level | Open pin |
| Purple Vents | 328 m below sea level | Open pin |
Step 3: Craft the suit
Prawn suit is crafted at the Mobile vehicle bay from 1 Plasteel ingot, 1 Power cell, 1 Enameled glass, 1 Computer chip. Counted down to raw materials that is 5 Titanium, 4 Copper ore, 4 Ribbon Plant, 2 Lithium, 2 Quartz, 2 Table coral sample, 1 Creepvine seed cluster, 1 Diamond, 1 Gold, 1 Lead. The game describes it as "Epic mech suit designed for navigating challenging environments on foot."
Step 4: Add the drill arm
Prawn suit drill arm unlocks after you scan 2 fragments (5 s a scan). The map holds 7 fixed pins in 3 areas.
It costs 4 Diamonds, and all 8 fixed diamond outcrops on the map say "Mined with: Prawn suit drill arm". Loose diamonds are a random spawn, so you start with those. Depths and areas: the diamond page.
Prawn suit drill arm is crafted at the Fabricator from 5 Titanium, 1 Lithium, 4 Diamond. The game describes it as "Enables the mining of large resource deposits."
| Area | Depth | On the map |
|---|---|---|
| Lily Pads | 246 m below sea level | Open pin |
| Lily Pads | 249 m below sea level | Open pin |
| Delta Island | 274 m below sea level | Open pin |
| Delta Island | 287 m below sea level | Open pin |
| Delta Island | 291 m below sea level | Open pin |
| Delta Island | 295 m below sea level | Open pin |
| Purple Vents | 328 m below sea level | Open pin |
Step 5: Choose the other arms and upgrades
Only the drill arm has fixed pieces. The other arms are in the spawner tables, so each new game rolls them; the map cannot show where. The depth modules do not stack, and MK2 "enhances diving depth to maximum. does not stack.".
| Arm | Fragments | Crafted at | Raw materials | What the game says |
|---|---|---|---|---|
 Prawn suit drill arm | no fragment in the files | Fabricator | 5 Titanium, 4 Diamond, 1 Lithium | Enables the mining of large resource deposits. |
 Prawn suit grappling arm | no fragment in the files | Fabricator | 2 Copper ore, 2 Flowering Spore, 2 Silver ore, 2 Table coral sample, 2 Titanium, 1 Gold, 1 Lithium, 1 Ribbon Plant | Fires a grappling hook for enhanced environment traversal. |
 Prawn suit propulsion cannon | no fragment in the files | Fabricator | 5 Titanium, 2 Copper ore, 2 Magnetite, 2 Table coral sample, 1 Gold, 1 Lithium | Industrial-strength propulsion cannon designed to fit the Alterra prawn suit |
 Prawn suit torpedo arm | no fragment in the files | Fabricator | 5 Titanium, 1 Gel sack, 1 Lithium, 1 Ruby | A standard payload delivery system adapted to fire torpedoes. |
Prawn Suit upgrades
| Upgrade | Fragments | Crafted at | Raw materials | What the game says |
|---|---|---|---|---|
 Prawn suit thermal reactor | 2 fragments, 0 pinned, random only | Fabricator | 6 Young Cotton Anemone, 2 Gold, 2 Kyanite, 2 Salt deposit, 2 Silver ore | Recharges power cells in hot areas. Doesn't stack. |
 Prawn suit storage module | no fragment in the files | Fabricator | 3 Titanium, 1 Lithium | A small storage locker. Prawn compatible. |
 Prawn suit jump jet upgrade | no fragment in the files | Fabricator | 5 Titanium, 3 Crystalline sulfur, 2 Nickel ore, 1 Lithium | Powerful rear-mounted jets propel the prawn suit into the air. |
 Prawn suit depth module MK1 | no fragment in the files | Fabricator | 4 Ruby, 2 Quartz, 1 Diamond, 1 Lead, 1 Spiral Plant Clipping | Enhances safe diving depth. Does not stack. |
 Prawn suit depth module MK2 | no fragment in the files | Modification station | 4 Ruby, 2 Nickel ore, 2 Quartz, 1 Diamond, 1 Kyanite, 1 Lead, 1 Spiral Plant Clipping | Enhances diving depth to maximum. Does not stack. |
Common mistakes
- Starting with a deep group. Three suit pieces are above sea level and 10 fixed pins are placed in all.
- Waiting for diamond outcrops to fund the drill arm. They need the arm.
- Stacking depth modules. The game text says they do not stack.
About these numbers
Every number here is read from the game files of the Steam build of 12 Aug 2025. Fixed pins and recipes are exact. Spawn chances come from a model of the game's spawner tables and have not been checked in a running game. Anything the files do not hold is marked on the page.
The fragment layer shows fixed pieces only. A piece the spawner rolls is not on any map.
Pages to keep open
Related pages
Sources
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