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Hello there, this guide will help you make your aquarium lively and beautiful and will also make the Reapers jealous of the unique creatures living in paradise, also known as your alien containment.
So, it's time to make your aquarium turn into a wonderful home that has various different types of species and colorful flora.
Now if you are new to Subnautica or haven't heard of creature eggs. Then, let me teach you. Creature eggs are a type of item in Subnautica that can be found near their respective parents. The player can attain one by searching the environment of their parents. You can also scan the babies instead of risking your life to the adults.
These are all the eggs I have found so far, and the locations I've found them. If you've found other eggs, or locations, please post them and I will update the list.
To hatch an egg, you need to place it in an alien containment and wait for several minutes for them to hatch. After hatching, the creature will be a tiny version of its parent. Example: If I have a Crabsquid egg and it hatches, a tiny Crabsquid will come out of it. You can also release them outside the aquarium but it is not recommended as they can destroy your base once they grow up, you can't also place them back in the alien containment either.
Kde hledat vejce roztomilky a jak na její vývoj
If two or more of the same species is in the aquarium, they will lay more eggs until they reach the limit of the aquarium's population limit. In that case, other species will die. If you put 2 of the same breed of regular fish in an Aquarium, they will breed like RABBITS!!
Eggs do not spawn immediately when entering a Biome, you must give them a minute (reproduction is har....
Below is a list of all item IDs and spawn codes within the Eggs category. All eggs for fauna (fish and animals) in Subnautica are in this category.
| Item Name | Item ID | Spawn Code |
|---|---|---|
| Ampeel Egg | shockeregg | spawn shockeregg |
| Boneshark Egg | bonesharkegg | spawn bonesharkegg |
| Crabsnake Egg | crabsnakeegg | spawn crabsnakeegg |
| Crashfish Egg | crashegg | spawn crashegg |
| Gasopod Egg | gasopodegg | spawn gasopodegg |
| Jellyray Egg | jellyrayegg | spawn jellyrayegg |
| Mesmer Egg | mesmeregg | spawn mesmeregg |
| Rabbit Ray Egg | rabbitrayegg | spawn rabbitrayegg |
| Reefback Leviathan Egg | reefbackegg | spawn reefbackegg |
| Sand Shark Egg | sandsharkegg | spawn sandsharkegg |
| Shuttlebug Egg | jumperegg | spawn jumperegg |
| Spadefish Egg | spadefishegg | spawn spadefishegg |
| Stalker Egg | stalkeregg | spawn stalkeregg |
Subnautica 2 creature DNA is the mechanic that replaced alien eggs: and it's more interesting than the original system. The original Subnautica's Alien Containment (that large aquarium module where you could incubate eggs and breed pelagic fish) has not carried over into the Early Access build. What has shipped is something more interesting from a design standpoint. Subnautica 2's creature interaction system skips captivity entirely. You don't keep fauna (you become them. The Biosampler tool lets you extract DNA from living creatures, which you then process and inject into your own biology at the Gene Augmentation Station. TL;DR: The Biosampler extracts DNA from living creatures; you process it at the Gene Augmentation Station and inject it to gain permanent traits.
How does the Subnautica 2 DNA system work? Alien eggs from Subnautica 1 are not in the Subnautica 2 EA build. The DNA modification system is the creature interaction loop. Passive traits stack. The original Subnautica's egg and containment system was about resource management. You hatched creatures, bred them, and some produced materials you could harvest. Subnautica 2 went a different direction. The DNA modification system (a feature cut from the original game that Unknown Worlds has now revived) turns creature interaction into character building. You are not farming the fauna.
That's the full loop as of May 2026.
Start with Waterslug gill tissue for extended oxygen (it's passive, zero risk, and essential before going deeper. The Waterslug is passive. It does not aggress. DNA yield: gill tissue, which extends oxygen capacity. The base injection gives you a meaningful buffer for deeper dives, and the gain compounds with additional stacks. This should be the first DNA you collect. The Sparse Plains is the starting biome, and you will run out of oxygen more times than you expect in the early hours. Risk: near zero.
Bioluminescent DNA grants night vision and a Flash escape ability but makes you glow, pulling predator aggro from farther away. Bioluminescent fauna in the darker depth ranges produce the most mechanically interesting trade-off in the current build. The cost is that the same glow that gives you night vision makes you visible. Predators detect a bioluminescent player from farther away than an unmodified one. After tracking this across roughly 30 hours of the EA build: the bioluminescent set rewards players who play aggressively and escape actively. Flash, flee, use terrain. It punishes passive stealth builds.
The Collector is a cephalopod-style apex predator with four tentacles, procedural physics, and AI that tracks player behavior. It lives in the Sparse Plains and the Karakorum Metal Farms. It is unkillable. Every guide correctly notes that you run from it. Bring a high-value nutrient object. The Collector responds to food-class items as a distraction. Locate its current patrol position. Throw the nutrient item ahead of its path. Approach from directly above and behind. The Collector's primary awareness zone is frontal. Run the Bio-Scanner scan for 10 continuous seconds. Disengage and return to base immediately. The DNA decays within two in-game days.
The Hammerhead sits below Leviathan class but aggresses freely. Its hammer-shaped head is a ram delivery system, and it will use it. DNA yield: physical adaptation traits, though exact ability values are still being documented by the community in the EA's first weeks. What is confirmed: you can sample it with the Biosampler during the attack approach if you time the extraction at the correct angle. Risk: moderate.
The Shiver is the Leviathan-class threat guarding the Void. Pressure resistance DNA suited to deep-dwelling comes from other fauna in Root Canyon, the deepest biome you can currently explore (364-750m). Without it, you will take crush damage below certain depth thresholds. Sampling difficulty: high, given the depth and environmental hazards of the region. Process Leviathan DNA before doing anything else. The decay timer runs whether you are at base or not. Don't enter Root Canyon without pressure resistance. It runs from 364-750m and has the steepest threat gradient in the current EA content. Going in without the right DNA and a mapped exit route is a reliable way to lose 40 minutes of progress.
GODEEPER: The Biosampler is only half the picture: knowing which biomes to enter is the other half. The current EA build has four confirmed creature types across four biomes. Diminishing returns hit after two stacks of the same species. Multiple samples from one creature type can stack into passive traits, but the gain drops off after the second injection. Co-op bioluminescence is a role, not a bug. One glowing player in a four-person squad will pull predator attention. That can be intentional: glowing player draws aggro while others extract or work objectives.
GODEEPER: If you haven't set up the Centrifuge yet, you'll need a solid base before processing Leviathan DNA. Start with the Waterslug. Extended oxygen capacity beats every other early unlock.
The nolt.io feedback board has an active post ("An egg for every creature") with enough upvotes to make it visible. Whether eggs and containment return in a form resembling Subnautica 1 or integrate with the existing DNA system in some new way is an open question. Unknown Worlds hasn't committed to either direction publicly. Are alien eggs in Subnautica 2 early access? No. As of the May 2026 EA launch, alien eggs are not in the build. The community feedback board has an active request for this feature.
Can you sample the Collector Leviathan? Yes. Distract it with a nutrient item, approach dorsally, run a 10-second continuous Bio-Scanner scan. How do you get DNA from creatures in Subnautica 2? Use the Biosampler on a living creature to collect a raw genetic sample. Which creature gives the best DNA? Depends on your stage of the game. Waterslug gill tissue first (oxygen extension). Bioluminescent Flash second if you play aggressively.
tags: #subnautica #unidentified #alien #egg #guide
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