Subnautica 2 How to Unlock Biomods: Biosampler, Bio Lab & Gene Station

The Biomod system in Subnautica 2 is a three-stage pipeline that turns alien DNA into personal upgrades. You extract samples from creatures and plants, refine them into serums, and inject those serums into yourself. The result is 15 different modifications to your biology — 5 active abilities with cooldowns and 10 passive buffs that run constantly.

But you can’t do any of that until you build three specific pieces of equipment. This guide walks you through unlocking each stage, from first sample to first Biomod.

The Three Stages

Here’s the pipeline at a glance:

1. Biosampler (portable tool) → Extracts raw DNA samples from living organisms
2. Bio Lab (base module) → Refines raw samples into injectable serums
3. Gene Augmentation Station (base module) → Applies serums to your character

You build them in this order. Each stage depends on the previous one. No shortcuts.

Stage 1: The Biosampler

The Biosampler is a handheld tool you craft at the Fabricator. It works like a scanner, but instead of cataloging creatures, it pulls DNA material from them.

How to Get the Blueprint

The Biosampler blueprint unlocks through normal progression. You’ll find it as a data entry in one of the early wrecks or data boxes scattered around the Lifepod area. Keep scanning data boxes and exploring wreckage — the blueprint shows up in the first few hours of play.

Crafting Requirements

The Biosampler requires basic materials you can find in the starting biome. Nothing exotic. You’ll need standard metals and electronic components — the same tier of materials used for tools like the Scanner and Repair Tool.

Check your Fabricator under the Personal tab once you have the blueprint. The materials are common enough that you likely already have most of them in storage.

How to Use It

Equip the Biosampler and approach any living organism — fauna or flora. Get close and use the tool on the creature. The extraction takes a couple of seconds. You’ll see a progress indicator, and then the raw DNA sample goes into your inventory.

Key things to know:

• Different organisms yield different samples. A fish sample won’t give you the same Biomod options as a plant sample.
• Biome matters. Creatures from deeper biomes produce higher-tier samples. Shallow-zone samples mostly lead to basic passive Biomods.
• You can sample the same species multiple times. Useful if you need specific materials for a particular serum.
• Aggressive creatures need to be sampled too. Some of the best Biomods come from predators. You’ll need to get close, which means bringing a plan for not getting eaten.

Sample Collection Tips

Start sampling everything the moment you build the Biosampler. Even if you can’t process the samples yet, having a stockpile ready means you can produce serums immediately once the Bio Lab is online.

Prioritize variety over volume. Ten different species samples are worth more than ten samples from the same fish. Each unique sample potentially unlocks a different Biomod.

For dangerous creatures, use the terrain. Lure predators into tight spaces where they can’t maneuver, then sample them while they’re stuck. Or bring a partner in co-op — one person distracts, the other samples.

Stage 2: The Bio Lab (Welcome Center)

The Bio Lab is located inside the Welcome Center, approximately 80-90 meters southeast of your Lifepod. It’s not a module you build — it’s a pre-existing facility from the colonists that you power up and use.

How to Access It

The Welcome Center is one of the first structures you’ll encounter. To activate the Bio Lab inside:

1. Craft a Basic Battery (2 Copper + 1 Acidic Raion Pouch)
2. Swim to the Welcome Center (~85-90m SE of Lifepod)
3. Insert the battery into the facility’s power slot
4. The Bio Lab activates and lets you choose your first Biomods

On your first visit, the Bio Lab lets you select one Active and one Passive Biomod — your first biological upgrades. This happens before you build your own DNA processing pipeline.

Using the Bio Lab

The Welcome Center Bio Lab serves as the interface for equipping and swapping Biomod enhancements. It’s your early-game Biomod hub. Return here whenever you want to change your active loadout.

How to Use It

Open the Bio Lab interface and insert a raw DNA sample. The lab processes the sample over a short period — it’s not instant, but it doesn’t take forever either. When processing finishes, you get a serum.

The serum type depends on the input sample. The Bio Lab tells you what it will produce before you commit the sample, so you can be selective. If you don’t want the resulting Biomod, save that sample for later or discard it.

Important details:

• Processing is one-to-one. One sample produces one serum.
• You can queue multiple samples. The lab processes them sequentially.
• Serum quality scales with sample source. Deep-biome samples produce stronger serums.
• Some serums require multiple sample types. The more advanced Biomods might need you to combine samples from different species. The Bio Lab interface shows the requirements.

Stage 3: The Gene Augmentation Station

This is where serums become Biomods. The Gene Augmentation Station is the final piece of the pipeline and the interface for managing your active loadout.

How to Get the Blueprint

The Gene Augmentation Station blueprint unlocks after you’ve built and used the Bio Lab for the first time. It’s tied to story progression — once you’ve proven you can refine DNA, the game gives you the means to apply it.

Crafting and Placement

This is the most expensive piece of the three. Expect advanced materials and possibly components you need to find in deeper biomes. It also takes up significant space in your base.

Place it next to your Bio Lab if possible. The workflow is: return from expedition → deposit samples in Bio Lab → wait for serums → apply at Gene Augmentation Station. Having both in the same room keeps the process smooth.

How to Use It

Open the Gene Augmentation Station interface. You’ll see your current Biomod loadout and available serums in your inventory. Select a serum, choose a slot, and apply.

The interface shows:

• Active Biomod slots — where your triggered abilities go (up to the slot limit)
• Passive Biomod slots — where always-on buffs go (up to the slot limit)
• Available serums — what you can currently apply
• Biomod descriptions — what each one does, including cooldowns for actives

You can swap Biomods freely at this station. Applying a new serum to an occupied slot replaces the existing Biomod. The replaced Biomod is lost — you’ll need another serum to get it back. So keep spare serums in storage if you plan to switch between loadouts regularly.

Unlocking More Biomods

The 15 Biomods don’t all appear at once. Your available pool expands as you:

• Explore new biomes. Each biome has its own creature and plant ecosystem, which means new sample types.
• Go deeper. Depth correlates with Biomod power. The shallow-zone Biomods are useful but basic. The real game-changers come from 200+ meters.
• Sample unique fauna. Rare creatures yield rare Biomods. If you see something unusual, sample it before doing anything else.

The progression feels natural. Early game gives you utility Biomods like Dermal Garden and basic Dash. Mid game opens up Bioluminescence and Sea Skimmer. Late game delivers the heavy hitters — Camouflage, Electric Discharge, and advanced abilities.

Co-op Considerations

In multiplayer, the Biomod infrastructure is shared. One Bio Lab and one Gene Augmentation Station serve the whole squad — everyone can use them. But each player needs to collect their own samples and apply their own serums. Your partner’s Camouflage serum doesn’t give you Camouflage.

Divide sample collection responsibilities. Send one player deep for high-tier samples while another sweeps the mid zones. Pool your results and everyone benefits faster.

The Bio Lab processes samples sequentially, which can create a bottleneck with four players. Building a second Bio Lab in a separate room solves this and keeps everyone productive.

Quick Reference

Stage	Type	Blueprint Source	Location
Biosampler	Handheld tool	Early data boxes/wrecks	Inventory
Bio Lab	Pre-built facility	Welcome Center (~85m SE of Lifepod)	Welcome Center
Gene Station	Base module	After Bio Lab use	Habitat interior

Visit the Welcome Center early to access the Bio Lab and choose your first Biomods. Build the Biosampler when you find its blueprint, start sampling everything, and push for the Gene Augmentation Station to expand your Biomod options. The earlier you engage with the system, the stronger you’ll be for mid-game exploration.

For recommended Biomod loadouts once you have the system running, see our Biomod builds tier list.