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Eggs are items found in Subnautica. They are the unhatched forms of certain types of Fauna. Until they hatch, the egg will be labeled as an unknown creature egg, changing to match the name of the creature the egg contains once it hatches. An egg can be identified by where it was found, its appearance, and its size (see table below).

Almost all Eggs can be placed inside an Alien Containment. After placing an egg inside an Alien Containment, it will stay where it was placed. After one to three in-game days, the egg will hatch into a smaller version of its respective species. The hatched creature will slowly grow, until it is mildly full sized or can fit to the confines of the Alien Containment. They can die inside of the aquarium however, if the aquarium's population limit is surpassed, or if they are left unattended for too long.

Baby creatures can be picked up and placed outside in the water, where they will instantly become fully grown. An aggressive creature will not attack the player if it is hatched in the aquarium, allowing the player to scan it even after it is released in the wild.

Eggs are also capable of being destroyed before they hatch. Hits with a knife will slice open the egg, resulting in no creature being spawned. Crashfish explosions can destroy their own eggs and habitat if they are too close.

Eggs can be found in their species' respective Biomes, however, due to the game's physics in the game engine, an egg can roll into another biome or cave, an example of this is finding a Stalker egg in the Jelly Shroom Caves.

Eggs can also be used as fuel for the Bioreactor, though they provide far less energy than a hatched creature.

More information and animations can be found on Trello.

Normal Eggs

Egg Size Description Location Incubation Period (Day/s) Item ID
Shocker EggAmpeel egg 4 (2x2) Ampeels hatch from these. 1 shockeregg
Bone Shark EggBoneshark egg 4 (2x2) Bonesharks hatch from these. 1 bonesharkegg
Crabsnake EggCrabsnake egg 4 (2x2) Crabsnakes hatch from these. 1 crabsnakeegg
Crabsquid EggCrabsquid egg 4 (2x2) Crabsquid hatch from these. 1 crabsquidegg
CrashEggCrashfish egg 1 Crashfish hatch from these. 1 crashegg
Cute Fish EggCuddle Fish egg 4 (2x2) Cuddle fish hatch from these. cutefishegg
Gasopod EggGasopod egg 4 (2x2) Gasopods hatch from these. 1 gasopodegg
Jellyray EggJellyray egg 4 (2x2) Jellyrays hatch from these. 1 jellyrayegg
LavaLizardEggLava Lizard egg 4 (2x2) Lava Lizards hatch from these. 1 lavalizardegg
Mesmer EggMesmer egg 1 Mesmers hatch from these. 1 mesmeregg
Rabbit Ray EggRabbit Ray egg 1 Rabbit Rays hatch from these. 1 rabbitrayegg
Reefback EggReefback egg 9 (3x3) Incredibly, Reefbacks hatch from these.
  • Not currently implemented
3 reefbackegg
Sand Shark EggSand Shark egg 4 (2x2) Sand sharks hatch from these. 1 sandsharkegg
Shuttlebug EggShuttlebug egg 1 Shuttlebugs hatch from these.
  • Not currently implemented
1 jumperegg
Spadefish EggSpadefish egg 1 Spadefish hatch from these. 1 spadefishegg
Stalker EggStalker egg 4 (2x2) Stalkers hatch from these. 1 stalkeregg

Unique Eggs

Spoiler alert: The following section contains story related material.


Egg Details Location
Sea Dragon Egg Transparent

Sea Dragon Leviathan Egg

An egg found in a specimen case within the Disease Research Facility, this egg was taken by the Precursors one thousand years ago to help research ways to make the Sea Emperor Leviathan eggs hatch. This egg cannot be hatched.

Two more Sea Dragon Leviathan eggs can be found in the egg lab of the Primary Containment Facility, strangely, these eggs are far smaller than the egg found in the Disease Research Facility.

SeaEmpEgg

Sea Emperor Leviathan Egg

Five of the eggs laid by the captive Sea Emperor Leviathan in the Sea Emperor's Aquarium. These eggs must be hatched in the story.


Gallery

For a more complete gallery, visit Eggs/Gallery

Trivia