Subnautica Wiki

River Prowler

513pages on
this wiki
Add New Page
Comments182 Share

The River Prowler is an aggressive life form belonging to the fauna category. It spawns exclusively in the Lost River.


The River Prowler has a thin, elongated body with many protrusions coming from both the top and bottom, a spine-like structure is visible within. The head is fleshy red in color, featuring two round, yellow eyes, a large maw with many visible sharp teeth, and four tendrils trailing behind its head.

The majority of the River Prowler's body, along with the organs, is transparent, emitting a faint white bioluminescent glow.


The River Prowler will lash out its tendrils when attacking, and then pull them back. It will use its tendrils to pull in the prey, and then proceed to mow it down using its large maw.

The River Prowler will let out ghastly hisses and snarls should anything get too close.

Part of its skeletal system is visible, although, oddly enough, none of its organs.


Data Bank EntryEdit

RIver Prwoler

A fast, agile predator discovered in the lost river biome.

  • Powerful jaws used for both savaging prey and warding off larger predators
  • Its torso is high vulnerable, consisting predominantly of spinal column and cartilage
  • It will aggressively keep its jaws facing its opponent, but smaller, faster lifeforms may have the advantage

Assessment: Avoid



  • The in development name for the River Prowler was "Lost River Bone Shark", and later, the Spine Eel.
  • In early development, the River Prowler used the AI and sounds of the Boneshark.
  • When the River Prowler got added to the game, it only had one eye. It is unknown why it only had one eye though. It was later changed and the River Prowler had two eyes.

Ad blocker interference detected!

Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers

Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.