Subnautica 2 Creature Eggs — How to Hatch Every Egg Type

Subnautica 2 creature eggs are collectible items that let you hatch and raise creatures in Alien Containment units. Each Subnautica 2 egg type produces a specific creature when incubated, from passive fish to rideable mounts. This Subnautica 2 creature eggs guide covers where to find every Subnautica 2 eggs type currently available in Early Access, how the hatching process works in Alien Containment, what each creature does when fully grown, and tips for breeding rare Subnautica 2 alien containment eggs species. Collecting and hatching Subnautica 2 creature eggs is one of the most rewarding side activities in the game.

Where to find Subnautica 2 eggs

Subnautica 2 creature eggs are hidden in specific locations across every biome. Small eggs (Peeper, Boomerang, Bladderfish) are found in clusters inside Safe Shallows caves and crevices. Medium Subnautica 2 eggs (Stalker, Sand Shark, Bone Shark) are tucked behind terrain features in their parent biome — Stalker eggs in Kelp Caves root systems, Sand Shark eggs in Grass Plateau sand dunes, Bone Shark eggs in Thermal Spires rock arches. Large Subnautica 2 creature eggs (Cuddlefish, Crabsquid, Glider Ray) are rare finds inside wrecks and deep cave systems. The Glider Ray egg — the most valuable Subnautica 2 eggs type — is found in the Jellyshroom Caves near the Serpent Leviathan's patrol route. Leviathan eggs are not available in the current Early Access build but are expected in Phase 2 or later updates. Each Subnautica 2 creature eggs location is fixed per world seed, so once you learn where they spawn, you can reliably collect them in new playthroughs.

How to hatch eggs in Alien Containment

Hatching Subnautica 2 creature eggs requires a built Alien Containment unit in your base — a standard aquarium does not support egg incubation. Place the Subnautica 2 eggs into the Alien Containment by interacting with the tank edge while holding the egg. The hatching time varies by egg size: small Subnautica 2 eggs hatch in 1–2 in-game days, medium eggs in 2–4 days, and large Subnautica 2 creature eggs in 3–5 days. You do not need to feed the eggs or maintain specific water conditions — the Alien Containment automatically maintains a viable environment. Hatched creatures start as juveniles and grow to full size over another 2–4 in-game days. Juvenile Subnautica 2 creature eggs hatchlings are friendly and will not attack the player. Once fully grown, creature behavior varies — passive creatures remain passive, and aggressive species raised from Subnautica 2 eggs become docile toward the player who raised them but may attack other players in co-op. The Alien Containment can hold up to 10 eggs and creatures of different species coexist peacefully.

Breeding and creature uses

Raised Subnautica 2 creature eggs creatures serve several purposes. The Cuddlefish is the most popular Subnautica 2 eggs reward — it follows the player, makes cute sounds, and can be interacted with for a unique animation. The Glider Ray is the only rideable Subnautica 2 creature eggs result — once fully grown, you can mount it in open water and ride it at speeds comparable to the Seamoth. Aggressive creatures hatched from Subnautica 2 creature eggs become territorial guardians — release a raised Stalker or Bone Shark near your base and it will attack wild creatures that approach. You can also breed Subnautica 2 eggs creatures by keeping two of the same species in Alien Containment — they produce a new egg after 2–3 in-game days, allowing infinite creature farming. The Subnautica 2 alien containment eggs breeding system is the only way to obtain unlimited Cuddlefish or Glider Rays without exploring dangerous biomes again. Species breeding from Subnautica 2 creature eggs requires both creatures to be fully grown adults.