All Confirmed Leviathans in Subnautica 2 (October 2026) Guide

Subnautica 2 has arrived in Early Access, and players are already encountering some of the most terrifying creatures ever designed for a survival game. The alien ocean of this new world is home to massive apex predators known as Leviathans, and if you are diving in for the first time, you need to know what is waiting in the deep. Our team has been following every dev vlog, trailer, and community update from Unknown Worlds to compile this guide covering all confirmed Leviathans in Subnautica 2.

Leviathans in Subnautica 2 are not just bigger versions of regular fauna. These creatures have advanced AI behavior trees with distinct sonar signatures, territorial responses, and hunting patterns that make each encounter feel unique. Some hunt in coordinated packs, others lurk motionless in the dark waiting for prey to swim too close, and a few have been spotted soaring above the water’s surface.

This guide breaks down every confirmed Leviathan we know about so far. For each one, we cover its behavior, estimated threat level, where it tends to spawn, and how to survive an encounter. Whether you are a returning Subnautica veteran or a brand-new diver, this is everything we know about the Leviathans roaming the ocean in Subnautica 2.

Quick Summary: All Confirmed Leviathans in Subnautica 2

Here is the complete list of every confirmed Leviathan in Subnautica 2 as of 2026. Unknown Worlds has shown or discussed six Leviathan-class organisms through dev vlogs, the Early Access cinematic trailer, and the fan art challenge. This list will grow as the game continues through Early Access.

• Collector Leviathan (Tyrannoteuthis phobocoeus) – The flagship apex predator with bioglass-tipped tentacles and towed-array sonar
• Void Leviathan / Shiver Leviathan (Skythopterygion atropos) – A coordinated pack hunter that works in groups called shivers
• Deepwing Brooder – A sexually dimorphic Leviathan first teased through the fan art contest
• Clam Leviathan – A massive stationary ambush predator that clings to the ocean floor
• Flying Leviathan – An unnamed airborne Leviathan spotted in the cinematic trailer

Five unique Leviathan types are confirmed so far, with more expected as Subnautica 2 Early Access continues. Now let us break down each one in detail.

Collector Leviathan

The Collector Leviathan is the most thoroughly documented creature in Subnautica 2. Unknown Worlds dedicated an entire dev vlog to its design pipeline, and it serves as the game’s flagship apex predator. Its scientific name is Tyrannoteuthis phobocoeus, and it earned that designation through sheer dominance in every biome it patrols.

Appearance and Size

The Collector Leviathan is a massive cephalopod-like organism with elongated tentacles tipped with bioglass structures. These bioglass tips are not just for show. They are hardened biological weapons that can puncture vehicle hulls. Its body features complex bioluminescent patterns that pulse along its mantle, and the overall color scheme shifts between deep crimson and dark purple depending on its aggression state.

Based on dev vlog footage and in-game scaling, the Collector Leviathan appears to exceed 100 meters in length when fully extended. That puts it in the same size class as the Sea Dragon Leviathan from the original Subnautica, and possibly larger when you account for its trailing tentacles. The physics-based tentacle simulation means each of its limbs moves independently, creating an unpredictable silhouette that makes it hard to judge which direction it will strike from.

Behavior and Hunting Patterns

The Collector Leviathan uses a towed-array sonar system to detect movement across vast distances. In practical terms, this means swimming fast near one is a bad idea. It picks up on the displacement currents your body or vehicle creates in the water, and once it locks onto a signal, it pursues with relentless focus.

Its hunting strategy involves circling prey at a distance before closing in with a rapid tentacle strike. The bioluminescent display shifts to an aggressive bright pattern during the final approach, which serves as a brief warning window. If you see those lights change color and intensify, you have about three seconds to change depth or get behind terrain.

Where to Find the Collector Leviathan

From what our team has observed in Early Access, the Collector Leviathan patrols deeper biomes, typically below 200 meters. It seems most active in open-water zones where its sonar advantage is maximized. Avoid wide expanses of open water at depth if you want to steer clear of it. Stick to canyon walls and kelp forests where terrain breaks up its sonar tracking.

Survival Tips

Move slowly when you suspect a Collector is nearby. Its sonar triggers on rapid movement. Use terrain as cover whenever possible, and if it locks onto you, dive or climb sharply rather than fleeing in a straight line. The Collector’s turn radius at speed is its main weakness. Changing depth rapidly is your best escape option.

Void Leviathan (Shiver Leviathan)

The Void Leviathan, also called the Shiver Leviathan, introduces a completely new mechanic to the Subnautica franchise: pack hunting. Unlike the solitary predators of the first game, this creature coordinates with others of its kind in groups called shivers. If you see one, there are almost certainly more nearby.

Appearance and Size

The Void Leviathan has a sleeker, more hydrodynamic profile compared to the Collector. Its body is built for speed and pursuit, with a streamlined head and powerful fin structures along its flanks. The bioluminescent patches along its sides flash in coordinated patterns when communicating with other members of its shiver, which is both beautiful and deeply unsettling when you realize what it means.

Individually, a Void Leviathan appears smaller than the Collector, likely in the 40 to 60 meter range. But a full shiver of three to five individuals working together presents a threat that rivals anything in the game. The collective hunting behavior is something no Subnautica player has dealt with before.

Pack Hunting Behavior

The shiver hunting mechanic is what makes this Leviathan truly dangerous. Each Void Leviathan in a shiver uses a broadcast organ to communicate with the others. They coordinate flanking movements, with some members driving prey toward others that are waiting in ambush. The AI behavior tree for this coordination is remarkably sophisticated.

Players on the Subnautica subreddit have reported that shivers seem to establish patrol routes around specific biomes. If you learn a shiver’s patrol pattern, you can time your expeditions to pass through while they are on the far side of their territory. This is the kind of environmental awareness that separates survivors from respawn screens.

Where to Find the Void Leviathan

Void Leviathans appear to favor mid-depth zones and the edges of deeper biomes, patrolling the transitional areas where different ecosystems meet. They are most commonly encountered in the boundary regions between biomes rather than in the open ocean or confined spaces. Think of them as the wolves of the Subnautica 2 ocean, patrolling the borders between territories.

Survival Tips

Never engage a lone Void Leviathan without scanning the area first for others. They rarely travel alone, and the one you see might be the distraction while its pack mates flank you. If a shiver starts hunting you, your best option is to reach confined terrain where only one can follow at a time. Narrow caves and canyon passages negate their numerical advantage.

Deepwing Brooder Leviathan

The Deepwing Brooder has the most unusual origin story of any Leviathan in Subnautica 2. It was first revealed through a fan art challenge hosted by Unknown Worlds, which means the community learned about it before any official dev vlog or trailer showcase. That fan-driven reveal has made it one of the most discussed creatures in the Subnautica community.

Appearance and Unique Traits

The Deepwing Brooder is described as sexually dimorphic, meaning males and females look distinctly different from each other. This is a level of biological detail that was absent from the first game’s creatures. The male and female forms have different body shapes, coloration patterns, and potentially different behavioral tendencies, though full details are still emerging as Early Access continues.

The creature’s name hints at its reproductive biology. Brooding behavior in marine organisms typically involves carrying or protecting eggs, and the “deepwing” portion suggests large fin or wing-like appendages. Community speculation points to a creature that guards a nesting territory, which could make certain deep biomes extremely dangerous during breeding periods.

What We Know So Far

Because the Deepwing Brooder was teased through the fan art contest rather than a formal dev vlog, some specifics about its in-game behavior remain unconfirmed. What we do know is that Unknown Worlds chose it as a contest subject because of its unique design, and the community response was overwhelmingly positive. Players have noted that its silhouette and design language are unlike anything from the original Subnautica.

The concept of partible paternity, where multiple males contribute to a single brood, has been mentioned in connection with this creature’s lore. If that carries over into gameplay, it could mean encountering groups of Deepwing Brooders competing for territory during mating cycles. That is speculative at this point, but it would add a dynamic element to the game’s ecosystem.

Survival Tips

Until more details emerge from Early Access updates, treat the Deepwing Brooder with the same caution you would apply to any unknown Leviathan. Give it wide berth, avoid what appear to be nesting sites, and scan it from a safe distance to contribute data to the community databases being compiled on wikily.gg and other fan sites.

Clam Leviathan

The Clam Leviathan breaks the mold of what players expect from a Subnautica apex predator. Instead of actively patrolling biomes and hunting prey, it is a stationary ambush predator. It anchors itself to the ocean floor and waits, sometimes in positions that make it nearly indistinguishable from the surrounding terrain. This is the first time a Leviathan-class organism in the Subnautica franchise has used a purely sit-and-wait strategy.

Appearance and Size

As the name suggests, the Clam Leviathan has a shell-like structure that it can close around itself for both defense and ambush. When its shell is shut, it blends into rocky ocean floor environments with remarkable effectiveness. The shell itself is enormous, easily large enough to swallow a small vehicle, and the interior contains feeding structures designed to process whatever wanders too close.

Players have compared encountering an open Clam Leviathan to stumbling into a cavern that suddenly starts closing around you. The gap between its shell halves is wide enough to look like a natural passage or cave entrance when viewed from the wrong angle. This environmental deception is what makes it so dangerous.

Behavior and Threat Pattern

The Clam Leviathan relies on prey coming to it rather than the other way around. It positions itself in locations where creatures naturally travel, such as the narrow passages between biomes or near thermal vents where other fauna gather. When something enters its strike zone, the shell snaps shut with tremendous force.

What makes this creature particularly nerve-wracking is that the ocean floor in Subnautica 2 is littered with regular clam-shaped geological formations. Until you have scanned a Clam Leviathan and learned to distinguish its visual tell from ordinary rock formations, every large bivalve shape on the seabed is a potential death trap.

Where to Find the Clam Leviathan

Look for them in areas with natural choke points. Narrow passages, thermal vent clusters, and the base of underwater cliff faces are all prime ambush locations. They seem to favor deeper zones where light is minimal and visual detection is harder for prey.

Survival Tips

Always scan unfamiliar terrain features before approaching. The Clam Leviathan has subtle bioluminescent markers inside its shell cavity that distinguish it from ordinary rock formations. If you see a faint glow coming from inside what looks like a cave entrance, back away immediately. Keep your distance from any large shell-like structure until you have positively identified it as geological rather than biological.

Flying Leviathan

The Flying Leviathan is the most mysterious confirmed Leviathan in Subnautica 2. It has been spotted in the Early Access cinematic trailer, breaching the ocean surface and soaring through the air above the water. Its existence suggests that Subnautica 2’s creature ecosystem extends beyond the underwater environment, which is a first for the franchise.

What We Know

Details are extremely limited at this point. The trailer footage shows a massive airborne shape with a wingspan that dwarfs any flying creature from the original game. Its body plan suggests it can move between water and air, possibly launching itself from the surface and gliding for extended distances. Whether it attacks players on the surface or near the water line remains to be confirmed.

The scientific name Skythopterygion atropos has been associated with airborne Leviathans in community databases, though whether this applies to the specific Flying Leviathan seen in the trailer or represents a broader classification is still being debated. The name itself references Atropos, one of the three Fates from Greek mythology who cut the thread of life, which is an ominous naming choice from Unknown Worlds.

Potential Gameplay Impact

If Flying Leviathans pose a threat to surface-level players, this changes how you approach traveling on the water. In the original Subnautica, the surface was generally safe. In Subnautica 2, looking up might become just as important as looking down. Players building surface bases or using floating equipment may need to consider aerial threats for the first time.

We will update this section as more information becomes available through Early Access updates and future dev vlogs.

Will Returning Leviathans Appear in Subnautica 2?

This is one of the most frequently asked questions in the Subnautica community, and the answer is nuanced. Based on everything Unknown Worlds has shared so far, Subnautica 2 features an entirely new alien planet with its own unique ecosystem. That means the specific Leviathans from the first game, like the Reaper Leviathan, Ghost Leviathan, and Sea Dragon Leviathan, are native to Planet 4546B and would not naturally appear on this new world.

However, there are interesting hints. Players have discovered what appears to be a Reaper Leviathan statue or model in Subnautica 2, which serves as an Easter egg and a nod to the first game’s most iconic creature. This suggests Unknown Worlds is aware of how attached the community is to the Reaper, but a statue is not the same as a living, breathing threat in the water.

Comparing Subnautica 2 Leviathans to the Original

The original Subnautica featured eight Leviathan-class organisms across its biomes, from the relatively passive Reefback to the terrifying Sea Dragon. Subnautica 2 already has five confirmed types with Early Access just beginning, and the community has been vocal about wanting more variety than the original offered.

The design philosophy appears to have shifted as well. Subnautica 2’s Leviathans show more complex AI behaviors, with pack hunting, stationary ambush tactics, and surface-to-air transitions that were not present in the first game. The physics-based animation system also makes these creatures feel more organic and unpredictable than their predecessors.

Whether any classic Leviathans return in some form, perhaps through story events, genetic experiments, or crossover content, remains to be seen. Unknown Worlds has a history of surprising its player base, so we would not rule anything out entirely as Early Access continues through 2026 and beyond.

Leviathan Threat Levels and Size Comparison

Understanding how each Leviathan compares in terms of threat and size is critical for planning your dives. Here is how we rank the confirmed Leviathans based on currently available information from Early Access and dev vlogs.

Threat Level Ranking

Highest Threat – Collector Leviathan: The Collector combines raw power with advanced sonar detection and has the size to destroy vehicles in a single engagement. It patrols open water at depth, which means escape options are limited. Treat every deep open-water zone as potential Collector territory.

High Threat – Void Leviathan (Shiver): A single Void Leviathan is manageable. A full shiver of three to five coordinating individuals is arguably more dangerous than a lone Collector. The pack hunting mechanic means you are never fighting just one, and their flanking tactics make evasion extremely difficult in open water.

High Threat – Clam Leviathan: The Clam Leviathan earns its high threat ranking through deception. It does not chase you, but if you wander into its strike zone unprepared, the damage is instant and devastating. The psychological toll of never quite trusting the ocean floor is a different kind of threat altogether.

Medium Threat – Deepwing Brooder: Still being documented, but its territorial nesting behavior and large size put it squarely in the medium-to-high range. The threat level may increase as we learn more about its aggression triggers and breeding cycle behavior.

Unknown Threat – Flying Leviathan: Too little information to properly assess. Its sheer size and the fact that it operates in a dimension (air) where players have fewer escape options suggests it could rank very high once fully documented.

Estimated Size Comparison

Based on available footage and community analysis, here is how the Leviathans compare in estimated length:

• Collector Leviathan: Approximately 100+ meters (largest confirmed)
• Flying Leviathan: Unknown full body length, wingspan appears massive
• Void Leviathan: Approximately 40 to 60 meters per individual
• Deepwing Brooder: Estimated 50 to 70 meters (still being documented)
• Clam Leviathan: Estimated 30 to 50 meters across when fully open

For context, the Reaper Leviathan from the original Subnautica was 55 meters long. The Sea Dragon was 95 meters. The Collector already appears to rival or exceed the Sea Dragon, and the pack-hunting Void Leviathans compensate for their smaller individual size with coordinated numbers.

How to Survive Leviathan Encounters in Subnautica 2

Surviving Leviathans in Subnautica 2 requires a different mindset than the first game. The AI is smarter, the behaviors are more varied, and the old tricks do not always work. Here are strategies that have proven effective in Early Access so far.

General Survival Principles

Speed kills, but not in the way you might think. Moving quickly through Leviathan territory is what gets you killed, because the Collector’s sonar and the Void’s broadcast network both key in on rapid displacement. Slow, deliberate movement is your first line of defense. Think like a diver, not a speedboat.

Terrain is your best friend. Every Leviathan we have encountered so far struggles with tight spaces. Canyons, caves, kelp forests, and wreckage sites all provide cover that negates the size and speed advantages of these creatures. Plan your routes through terrain-rich environments whenever possible.

Depth changes save lives. Most Leviathans in Subnautica 2 have a preferred depth range, and rapid vertical movement disrupts their pursuit patterns more effectively than horizontal fleeing. If something is chasing you, go up or down aggressively rather than trying to outrun it on the same plane.

Equipment and Preparation

Invest in sonar upgrades for your vehicles early. Being able to detect Leviathans before they detect you is the single biggest survival advantage in the game. The towed-array sonar used by the Collector works both ways. Your own sonar can pick up large organisms at significant distances if you have the right equipment.

Perimeter defense systems on vehicles are worth every resource you spend on them. A well-timed perimeter defense pulse can stun a pursuing Leviathan long enough for you to reach cover. Do not leave your base without one once you start exploring deeper biomes.

Scanning Leviathans Safely

If you want to complete your creature database, you will need to scan Leviathans. The safest approach is to find a Leviathan that is currently focused on something else, whether that is another creature, a patrol route, or a resting state. Maintain maximum scanner range, use terrain as cover, and never scan the same individual twice in a row. They remember, and they will come looking for you.

The Scanner Room is invaluable here. Deploy one near a known Leviathan territory and let it map patrol routes before you go anywhere near the creature itself. Knowledge is the ultimate survival tool in Subnautica 2.

FAQs

Conclusion

The confirmed Leviathans in Subnautica 2 represent a significant evolution from what players experienced in the original game. From the sonar-equipped Collector Leviathan to the pack-hunting Void Leviathan shivers, each creature brings a unique threat that demands different survival strategies. The stationary Clam Leviathan turns the ocean floor into a minefield, the Deepwing Brooder hints at complex reproductive biology we have not seen before, and the Flying Leviathan adds an entirely new dimension of danger.

With five confirmed Leviathan types and more almost certainly on the way as Subnautica 2 Early Access continues through 2026, this guide will keep evolving alongside the game. Our team is actively playing and documenting every encounter, so check back as updates drop. The ocean is worth exploring, but only if you know what is hunting you.