The Bottle Lantern is a Light Tab item exclusive to the Shipwrecked DLC. It requires an Alchemy Engine to prototype, and an Empty Bottle and 2 Bioluminescence to craft. It acts as a portable light source which can be wielded or placed on the ground, similar to Lanterns from the base game. If it is placed on the ground, it can be turned on and off at will. Bottle Lanterns can be refueled with Fireflies or Bioluminescence.
- When dropped on the ground, a Bottle Lantern at 0% will still emit light after leaving the game and coming back making them permanent light sources.
- Whenever a Bottle Lantern drops from a Whale, it will emit light indefinitely as long as it is not picked up.