This article is about Bioreactor in Subnautica. For the related article on the Below Zero Wiki, see Bioreactor.


A reliable power source is a critical step toward self-sufficiency. Consider keeping a photo-journal of your achievements to motivate you in times of despair.


― PDA, Dialogue


The Bioreactor is constructed with the Habitat Builder and composts organic matter into Energy. It has a 4×4 inventory grid to place organic items into, and items placed inside it cannot be removed once placed. It can break down any organic matter into reliable energy for Seabases. The Bioreactor produces 1 energy every 1.2 seconds (50 per minute) with a maximum capacity of 500 units per Bioreactor. It can only be placed inside a Multipurpose Room. It does not affect power in creative mode.

Bioreactors work well in biomes where organic matter is plentiful, such as Kelp Forests or Mushroom Forests, where Solar Panels may be less efficient. It is also easy to supply a Bioreactor with fuel if one keeps an Exterior GrowbedInterior Growbed or Alien Containment full of fish nearby. It is also useful for disposing of any excess or spoiled flora and fauna that the player has no more need of. Egg-hatched fish in particular provide the most energy.

Thanks to its low costs and easily renewable fuel it is perfectly suited to power outposts with low power devices like a Battery Charger or Power Cell Charger, especially if the area lacks the requirements for both Solar Panels and Thermal Plants. But even if better sources are available, it still provides easy additional energy for demanding seabases.


TitaniumTitaniumTitaniumWiring KitLubricantArrow-right (1)Habitat BuilderArrow-right (1)Bioreactor

Energy Values (expand)

Acid MushroomArrow-right (1)BioreactorArrow-right (1)Energy×210

Acid Mushroom SporeArrow-right (1)BioreactorArrow-right (1)Energy×21

Blood OilArrow-right (1)BioreactorArrow-right (1)Energy×420

Blue Palm SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Bulb Bush SampleArrow-right (1)BioreactorArrow-right (1)Energy×420

Cave Bush SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Creepvine SampleArrow-right (1)BioreactorArrow-right (1)Energy×210

Creepvine Seed ClusterArrow-right (1)BioreactorArrow-right (1)Energy×70

Deep ShroomArrow-right (1)BioreactorArrow-right (1)Energy×210

Deep Shroom SporeArrow-right (1)BioreactorArrow-right (1)Energy×21

Eye Stalk SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Furled Papyrus SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Gabe's Feather SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Gel SackArrow-right (1)BioreactorArrow-right (1)Energy×245

Spore Sack SeedArrow-right (1)BioreactorArrow-right (1)Energy×7

Ghost Weed SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Jellyshroom SporeArrow-right (1)BioreactorArrow-right (1)Energy×140

Membrain Tree SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Pygmy Fan SeedArrow-right (1)BioreactorArrow-right (1)Energy×28

Redwort SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Regress Shell SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Rouge Cradle SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Sea Crown SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Spotted Dockleaf SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Tiger Plant SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Veined Nettle SeedArrow-right (1)BioreactorArrow-right (1)Energy×21

Violet Beau SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Writhing Weed SeedArrow-right (1)BioreactorArrow-right (1)Energy×140

Bulbo Tree SampleArrow-right (1)BioreactorArrow-right (1)Energy×420

Chinese PotatoArrow-right (1)BioreactorArrow-right (1)Energy×140

Fern Palm SeedArrow-right (1)BioreactorArrow-right (1)Energy×70

Grub Basket SeedArrow-right (1)BioreactorArrow-right (1)Energy×105

Jaffa Cup SeedArrow-right (1)BioreactorArrow-right (1)Energy×140

Lantern FruitArrow-right (1)BioreactorArrow-right (1)Energy×210

MarblemelonArrow-right (1)BioreactorArrow-right (1)Energy×420

Marblemelon SeedsArrow-right (1)BioreactorArrow-right (1)Energy×70

Small MarblemelonArrow-right (1)BioreactorArrow-right (1)Energy×280

Ming Plant SeedArrow-right (1)BioreactorArrow-right (1)Energy×140

Pink CapArrow-right (1)BioreactorArrow-right (1)Energy×105

Pink Cap SporeArrow-right (1)BioreactorArrow-right (1)Energy×14

Speckled RattlerArrow-right (1)BioreactorArrow-right (1)Energy×140

Speckled Rattler SporeArrow-right (1)BioreactorArrow-right (1)Energy×14

Voxel Shrub SeedArrow-right (1)BioreactorArrow-right (1)Energy×28

Coral Tube SampleArrow-right (1)BioreactorArrow-right (1)Energy×70

Fungal SampleArrow-right (1)BioreactorArrow-right (1)Energy×70

Purple Brain Coral SampleArrow-right (1)BioreactorArrow-right (1)Energy×70

Table Coral SampleArrow-right (1)BioreactorArrow-right (1)Energy×70

Shocker EggArrow-right (1)BioreactorArrow-right (1)Energy×259

Bone Shark EggArrow-right (1)BioreactorArrow-right (1)Energy×210

Crabsnake EggArrow-right (1)BioreactorArrow-right (1)Energy×231

Crabsquid EggArrow-right (1)BioreactorArrow-right (1)Energy×259

CrashEggArrow-right (1)BioreactorArrow-right (1)Energy×189

Cute Fish EggArrow-right (1)BioreactorArrow-right (1)Energy×210

Gasopod EggArrow-right (1)BioreactorArrow-right (1)Energy×231

Jellyray EggArrow-right (1)BioreactorArrow-right (1)Energy×119

LavaLizardEggArrow-right (1)BioreactorArrow-right (1)Energy×189

Mesmer EggArrow-right (1)BioreactorArrow-right (1)Energy×175

Rabbit Ray EggArrow-right (1)BioreactorArrow-right (1)Energy×140

Reefback EggArrow-right (1)BioreactorArrow-right (1)Energy×280

Sand Shark EggArrow-right (1)BioreactorArrow-right (1)Energy×210

Shuttlebug EggArrow-right (1)BioreactorArrow-right (1)Energy×105

Spadefish EggArrow-right (1)BioreactorArrow-right (1)Energy×140

Stalker EggArrow-right (1)BioreactorArrow-right (1)Energy×105

ShockerArrow-right (1)BioreactorArrow-right (1)Energy×770

BladderfishArrow-right (1)BioreactorArrow-right (1)Energy×210

BonesharkArrow-right (1)BioreactorArrow-right (1)Energy×630

BoomerangArrow-right (1)BioreactorArrow-right (1)Energy×280

CrabsnakeArrow-right (1)BioreactorArrow-right (1)Energy×700

CrabsquidArrow-right (1)BioreactorArrow-right (1)Energy×770

CrashfishArrow-right (1)BioreactorArrow-right (1)Energy×560

EyeyeArrow-right (1)BioreactorArrow-right (1)Energy×420

FloaterArrow-right (1)BioreactorArrow-right (1)Energy×50

GarryfishArrow-right (1)BioreactorArrow-right (1)Energy×420

GasopodArrow-right (1)BioreactorArrow-right (1)Energy×700

HolefishArrow-right (1)BioreactorArrow-right (1)Energy×280

HoopfishArrow-right (1)BioreactorArrow-right (1)Energy×210

HoverfishArrow-right (1)BioreactorArrow-right (1)Energy×350

JellyrayArrow-right (1)BioreactorArrow-right (1)Energy×350

Lava LizardArrow-right (1)BioreactorArrow-right (1)Energy×560

Lava BoomerangArrow-right (1)BioreactorArrow-right (1)Energy×280

MesmerArrow-right (1)BioreactorArrow-right (1)Energy×560

OculusArrow-right (1)BioreactorArrow-right (1)Energy×630

PeeperArrow-right (1)BioreactorArrow-right (1)Energy×420

Rabbit RayArrow-right (1)BioreactorArrow-right (1)Energy×420

Lava EyeyeArrow-right (1)BioreactorArrow-right (1)Energy×420

ReefbackArrow-right (1)BioreactorArrow-right (1)Energy×840

ReginaldArrow-right (1)BioreactorArrow-right (1)Energy×490

Sand SharkArrow-right (1)BioreactorArrow-right (1)Energy×630

ShuttlebugArrow-right (1)BioreactorArrow-right (1)Energy×280

SpadefishArrow-right (1)BioreactorArrow-right (1)Energy×420

SpinefishArrow-right (1)BioreactorArrow-right (1)Energy×210

StalkerArrow-right (1)BioreactorArrow-right (1)Energy×560

LubricantArrow-right (1)BioreactorArrow-right (1)Energy×20

Sea Treader FecesArrow-right (1)BioreactorArrow-right (1)Energy×300

Stalker ToothArrow-right (1)BioreactorArrow-right (1)Energy×70

Data Bank Entry


On planets where organic matter is plentiful but sunlight is not, a reliable bioreactor will frequently prove the most efficient power solution.

- May be installed in any multipurpose habitat room
- Chemically composts organic materials, converting them into energy over time
- Accepts all plant matter, from seeds and spores to moldy fruits and vegetables
- Can also process animal matter (fat, muscle, eggs etc.) and some organic waste products
- Energy production is proportionate to the calories in the organic matter

'The Bioreactor: Totally organic.'



  • When the Bioreactor was first introduced, it was placed outside of the base, much like a Solar Panel.
    • The Bioreactor used to only accept the combination of Creepvine Samples and Fungal Samples.
  • Only one species of plantable Flora and one species of hatchable Fauna cannot be put in the Bioreactor: respectively these are Spiked Horn Grass and the Cuddlefish.
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