Wilson Portrait
These make a soothing glow.


Willow Portrait
It's a cold light. Not like a flame at all.


Wolfgang Portrait
Pretty sea-lights!


Wendy Portrait
Life takes such curious forms! Yet death claims them all.


WX-78 Portrait


Wickerbottom Portrait
Fascinating, beautiful marine biology.


Woodie Portrait
Just like the Northern Lights.


Waxwell Portrait
Quite otherworldly, no?


Wigfrid Portrait
What magic is this?


Webber Portrait
Wooow! Pretty water lights!


Walani Portrait
Pretty glowy goop!


Warly Portrait


Woodlegs Portrait
They light up me life.


Warbucks Portrait
A rather curious bug!


Bioluminescence is a passive immobile Mob introduced in the Shipwrecked DLC. It is found in Deep Oceans in groups of 12. It can be considered the aquatic version of Fireflies, and emits light during the night. It will not appear until dusk arrives, and will stay until dawn. It does however still persist during a Full Moon. Once found, it can be caught with Trawl Net or Net while it is visible. Unlike Fireflies, it won't disappear when player character approaches, so they can be used as a permanent protection against Charlie.

Bioluminescence can be used to craft Bottle Lanterns, Buoys, and can be used to refuel Bottle Lanterns, Miner Hats as well as Boat Lanterns (restores 38.5% of its capacity). It does not change location so once the map is generated, its location can be marked on the map by placing any items that have a map icon, such as Backpack, Log Raft, Raft or placing a Buoy nearby.

Bioluminescence is currently non-renewable. It has a spawner in the files, but the spawner removes itself after world generation. When dropped on land, bioluminescence is destroyed, but it can be placed in the water safely.

Icon Tools UsageEdit

Inventory slot backgroundBioluminescenceInventory slot backgroundBioluminescenceInventory slot background Empty BottleAlchemy EngineInventory slot backgroundBottle Lantern
Inventory slot backgroundBioluminescenceInventory slot backgroundBioluminescenceInventory slot background Empty BottleInventory slot backgroundBamboo


Science MachineInventory slot backgroundBuoy

Placeholder TriviaEdit

  • Bioluminescence typically refers to the production of light by living organisms. Given the appearance and habitat of the Bioluminescence in-game, it appears to be modelled after Dinoflagellates, which are bioluminescent Plankton that can cause water to glow in a phenomenon known as Red Tide.

Mosquito BugsEdit

  • Sometimes Bioluminescence does not disappear during the day.
  • Bioluminescence in the inventory will disappear during the first time travelling into the Volcano, and to a new vanilla or Reign of Giants world (during world generation).
  • Bioluminescence in the inventory will be lost when using Teleportato.
Items and Structures dropped by Mobs
Loot AshesAzure FeatherBatilisk WingBeard HairBeefalo HornBlow DartBlue GemBunny PuffButterButterfly WingsCharcoalCrimson FeatherDeerclops EyeballDrumstickFleshy BulbFlintFrog LegsGearsGuardian's HornGlow BerryHoneyHound's ToothJet FeatherKrampus SackLight BulbLiving LogMandrakeMeatMonster MeatMorselMosquito SackNightmare FuelOrnate ChestPig SkinPurple GemRed GemRocksSilkSlurtle SlimeSlurper PeltSpider EggsSpider GlandShelmetSnurtle Shell ArmorSpiderhatStingerTam o' ShanterTentacle SpikeTentacle SpotsThulecite FragmentsWalrus Tusk
(Cat TailDown FeatherElectric MilkGlommer's GoopGlommer's WingsScalesThick FurVolt Goat HornWebber's Skull Reign of Giants icon) (BananaBlubberBooty BagCoconutChest of the DepthsDead DogfishDead JellyfishDead Rainbow JellyfishDead SwordfishDead WobsterDorsal FinDoydoy FeatherDragoon HeartDubloonsEmpty BottleEye of the Tiger SharkEyeshotFish MorselHarpoonHornIron KeyMagic SealObsidianQuacken BeakRaw FishTropical FishShark FinShark GillsSnakeskinSnake OilTarnished CrownTurbine BladesVenom GlandYellow Mosquito Sack Shipwrecked icon) (Bee Queen CrownBlueprintBone HelmBone ArmorChilled LavaeCut GrassDeer AntlerDesert StoneFossil FragmentsFur TuftLavae EggLeafy MeatPhlegmRoseRoyal JellySaffron FeatherShadow AtriumShadow ThuribleShroom SkinSketchStag AntlerSteel Wool Don't Starve Together icon)
Indirect BeeBeefalo WoolButterflyCrowFirefliesGuanoManureRedbirdSeedsSnowbirdRabbitMosquito
(Glommer's GoopMoleworm Reign of Giants icon) (Bile-Covered SlopBioluminescenceCormorantCrabbitJellyfishParrotParrot PirateRainbow JellyfishRoeSeagullToucanWobster Shipwrecked icon) (CanaryCut Grass Don't Starve Together icon)