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The Polycage is a flora species found in Subnautica: Below Zero.


The Polycage is mostly dark purple in color, with blue stripe patterns on its branches.

It has a very peculiar appearance: a polyhedral structure sitting on top of a thick stalk rooted to the sea floor. Each vertex of said structure sports a large glowing orb, sometimes accompanied with small tentacle-like structures.

The plant can also be seen growing out from multiple Large Resource Deposits.

Data Bank Entry

Plant Cage Ency.png

The polycage plant exhibits bioluminescence, caused by the chemical reaction between a light emitting molecule and a particular enzyme.

Source: Only obtainable through Console Commands