Subnautica 2 Biomods tier list: Best ones to use

The early access build of Subnautica 2 has plenty of Biomods on offer, and we can use them to improve our chances of survival. Each Biomod has a unique ability that either has to be activated or works automatically as a passive. Our guide will help you understand which are the best mods to unlock. Table of contentsComplete Subnautica 2 Biomods tier listS-tierA-tierB-tierComplete Subnautica 2 Biomods tier list Biomods are of two types: Active and Passive. We can have only one Active Biomod at any given time, but the same rule isn't applicable for the Passive ones. I have used three different tiers to judge each of them based on their abilities.S-tier choices are pretty much the best options. A-tier choices are good options, but you'll need to time their use.B-tier choices aren't my favorites. They get the job done, but they're extremely situational. S-tierNameEffectReasonDashDash in any direction to avoid predators or hazardsThis is one of the best Biomods to equip, and more so because it's free. You can use the dash to avoid enemies or just cover distances quickly. The cooldown is pretty low, adding to the benefits. Sonic EchoEmit a sonar pulse to highlight nearby resourcesFinding resources in depth might not be the easiest task. Hence, knowing their locations if you're near them is certainly beneficial. CamouflageBecome invisible to predators when not movingIf you find yourself trapped, all you have to do is just stay calm. However, you can still take damage if the predator accidentally hits you. Homing SenseDetect nearby bases with electrical powerGreat at finding out nearby bases if they have their power source active. Dermal GardenSlowly grow nutritious algae on your skinThis is a useful way to manage your hunger in desperate situations. I also don't like to cook, which is partly why I find this Biomod to be so beneficial. A-tierNameEffectReasonElectric DischargeEmit an 800-volt electric shock to deter medium and large-sized predatorsThis charge is enough to deter any incoming predator and send them packing. However, don't try this with the Leviathan (tried, and the results weren't pretty). Chum CloudRelease a cloud of delicious bait to distract predatorsThis is a good alternative to Electric Discharge, and it allows you to get away when you're being chased by a predator. Oxygen ControlSlows oxygen consumption when not movingConsuming less oxygen when you're stationary is useful, but you can bypass its advantages by using a bigger Oxygen tank. BioluminiscenceGlow in the darkThis is beneficial if you love to explore at night and don't want to carry the Flashlight in your inventory. Threat SenseDetect nearby threats with specialised hair cellsThere are ample numbers of times when a predator will be lurking around from a blind spot. Threat Sense also alerts you about hazardous environmental conditions. Water RetentionGain more water from all sources with enlarged, orca-like kidneysSince your body will be absorbing more water from practically any source, you can pay less attention to your thirst. B-tierBiomodEffectReasonPathfinderRelease a trail of pheromones you can follow to find your wayWhile the pheromones do prevent you from getting lost, their use reduces as you unlock more tools and advance in terms of technology. Sea SkimmerSwim faster when close to underwater surfaces or the seafloorWhile the enhanced speed is noticeable, you can easily replace them with tools like the Wakemaker. You'll also travel in the Tadpole once you've unlocked it. Water SecretionSlowly fills a water packet by filtering fresh water from the seaAllows you to passively regenerate water, but go for Water Retention as that's a better choice. The only Biomod I have yet to assess is Slow Metabolism (yet to be unlocked). The list of available options should increase during early access once the updates are dropped. I will duly update my tier list accordingly based on how the new Biomods fare compared to the existing ones. The post Subnautica 2 Biomods tier list: Best ones to use appeared first on Destructoid.

May 18, 2026 - 20:54

Subnautica 2 Biomods tier list: Best ones to use

The early access build of Subnautica 2 has plenty of Biomods on offer, and we can use them to improve our chances of survival. Each Biomod has a unique ability that either has to be activated or works automatically as a passive.

Our guide will help you understand which are the best mods to unlock.

Table of contents

Complete Subnautica 2 Biomods tier list

Complete Subnautica 2 Biomods tier list

Biomods are of two types: Active and Passive. We can have only one Active Biomod at any given time, but the same rule isn't applicable for the Passive ones. I have used three different tiers to judge each of them based on their abilities.

S-tier choices are pretty much the best options.
A-tier choices are good options, but you'll need to time their use.
B-tier choices aren't my favorites. They get the job done, but they're extremely situational.

S-tier

Name

Effect

Reason

Dash

Dash in any direction to avoid predators or hazards

This is one of the best Biomods to equip, and more so because it's free. You can use the dash to avoid enemies or just cover distances quickly. The cooldown is pretty low, adding to the benefits.

Sonic Echo

Emit a sonar pulse to highlight nearby resources

Finding resources in depth might not be the easiest task. Hence, knowing their locations if you're near them is certainly beneficial.

Camouflage

Become invisible to predators when not moving

If you find yourself trapped, all you have to do is just stay calm. However, you can still take damage if the predator accidentally hits you.

Homing Sense

Detect nearby bases with electrical power

Great at finding out nearby bases if they have their power source active.

Dermal Garden

Slowly grow nutritious algae on your skin

This is a useful way to manage your hunger in desperate situations. I also don't like to cook, which is partly why I find this Biomod to be so beneficial.

A-tier

Name

Effect

Reason

Electric Discharge

Emit an 800-volt electric shock to deter medium and large-sized predators

This charge is enough to deter any incoming predator and send them packing. However, don't try this with the Leviathan (tried, and the results weren't pretty).

Chum Cloud

Release a cloud of delicious bait to distract predators

This is a good alternative to Electric Discharge, and it allows you to get away when you're being chased by a predator.

Oxygen Control

Slows oxygen consumption when not moving

Consuming less oxygen when you're stationary is useful, but you can bypass its advantages by using a bigger Oxygen tank.

Bioluminiscence

Glow in the dark

This is beneficial if you love to explore at night and don't want to carry the Flashlight in your inventory.

Threat Sense

Detect nearby threats with specialised hair cells

There are ample numbers of times when a predator will be lurking around from a blind spot. Threat Sense also alerts you about hazardous environmental conditions.

Water Retention

Gain more water from all sources with enlarged, orca-like kidneys

Since your body will be absorbing more water from practically any source, you can pay less attention to your thirst.

B-tier

Biomod

Effect

Reason

Pathfinder

Release a trail of pheromones you can follow to find your way

While the pheromones do prevent you from getting lost, their use reduces as you unlock more tools and advance in terms of technology.

Sea Skimmer

Swim faster when close to underwater surfaces or the seafloor

While the enhanced speed is noticeable, you can easily replace them with tools like the Wakemaker. You'll also travel in the Tadpole once you've unlocked it.

Water Secretion

Slowly fills a water packet by filtering fresh water from the sea

Allows you to passively regenerate water, but go for Water Retention as that's a better choice.

The only Biomod I have yet to assess is Slow Metabolism (yet to be unlocked). The list of available options should increase during early access once the updates are dropped. I will duly update my tier list accordingly based on how the new Biomods fare compared to the existing ones.

The post Subnautica 2 Biomods tier list: Best ones to use appeared first on Destructoid.

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