Rock Puncher in Subnautica: Below Zero

Rock PuncherCarnivores in the game's databank. Rolled for each new game at 33 to 675 m deep. 10 are placed by hand between 252 to 327 m deep.

Data: Subnautica: Below Zero game files (build of 12 Aug 2025), read and drawn by PinDrop. (c) Unknown Worlds Entertainment. PinDrop is fan-made and not affiliated with Unknown Worlds Entertainment.

Map of Subnautica: Below Zero with the Rock Puncher drawn on it
Placed in the world (10)Eggs placed (12)heat = where it can spawn (model)All 10 placed Rock Puncher pins on the map →
Class
Carnivores
Depth
33 m to 675 m
Spawns per game
about 30
Placed pins
10

“A large crustacean which feeds on tiny larvae excavated from coral and rock with its powerful punching arms.”

Assessment: Avoid or redirect with food

Rock Puncher, in-game databank. The studio's text, quoted short.

Where Rock Puncher spawns

Median depth 541 m; 10% of the modelled spawns lie deeper than 675 m and 10% shallower than 33 m; the baked slots that can hold it span 824 m to 4 m.

Areas where Rock Puncher can spawn
AreaSlots that can hold itExpected per gameShare
Crystal Caverns4,71419
Thermal Spires41712

Spawn numbers are a model read from the game's spawner tables and 921,892 baked slots, not verified in a running game.

Placed by hand

10 Rock Puncher objects sit at fixed coordinates in the game files. They are exact, not modelled.

Where Rock Puncher is placed
AreaPlacedDepthPositionMap
Koppa Mining Site1252 mx -323, z -756Show on map
Koppa Mining Site1274 mx -202, z -727Show on map
Koppa Mining Site1286 mx -200, z -677Show on map
Koppa Mining Site1273 mx -186, z -748Show on map
Koppa Mining Site1295 mx -158, z -631Show on map
Koppa Mining Site1327 mx -68, z -647Show on map
Koppa Mining Site1327 mx -45, z -645Show on map
Koppa Mining Site1309 mx -99, z -672Show on map
Koppa Mining Site1311 mx -89, z -625Show on map
Koppa Mining Site1311 mx -15, z -657Show on map

Rock puncher egg

The spawner tables roll the egg about 13 times per game, most in Crystal Caverns. 12 eggs are placed at fixed spots (egg layer on the map).

In the same places

The area Rock Puncher appears in most is Crystal Caverns. What else spawns there:

About the Rock Puncher

The Rock Puncher is filed under carnivores in the game's databank. The files give it 5,131 baked slots that can hold it across 2 area groups, 30 expected spawns per new game, mostly in Crystal Caverns, at 33 to 675 m deep for the middle 80%. 10 are placed by hand, with 12 placed eggs.

The files do not say how it behaves or what it can do to the player, so this page carries only the studio's databank text above. Depths are metres below sea level; coordinates are the game's world metres, x east and z north.

Spawn numbers are a model (slot tables), not verified in a running game. Placed pins are read as placed.