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Metro 2039Tadpole Chassis
Subnautica 2's Tadpole docks to a chassis that changes its role: the Scout Ray adds hydrofoil wings for speed, and the Haul adds passenger seats and much more cargo. A third, the "stompy" Frog chassis, arrives with Early Access 2 in December 2026.
A chassis in Subnautica 2 is a body the Tadpole docks into, and in Early Access as of Nov 4, 2026 there are two: the Scout Ray, whose hydrofoil wings make it fast enough to cross the first chasm and outrun a leviathan, and the Haul, slower but with room for passengers and a much larger inventory (PCGamesN, updated May 18, 2026). Both are built at the Vehicle Fabricator in a Moonpool. A third, the Frog chassis, which Unknown Worlds calls "stompy", comes with the next content update in December 2026, Early Access 2 (Unknown Worlds, Nov 3, 2026). A chassis can be detached at any time and left behind, which matters in tight caves where the Scout Ray's wings make the craft wider (Dexerto, May 14, 2026).
Quick facts
| Chassis in Early Access | Scout Ray, Haul (as of Nov 4, 2026) |
| Coming | Frog chassis, with Early Access 2 in December 2026 |
| Built at | Vehicle Fabricator, in a Moonpool |
| Scout Ray | Speed and agility; max swim acceleration 1600 (Dexerto) |
| Haul | Passengers and cargo; max swim acceleration 250 (Dexerto) |
| Scout Ray blueprint | One scan in the Tadpole Pens |
| Haul blueprint | Three fragments around the Alien Ruins, about 1,300 m east |
| Recipes from | PCGamesN (updated May 18, 2026) and Dexerto (May 14, 2026), the launch build |
Sources: PCGamesN (Christian Vaz), updated May 18, 2026; Dexerto, Scout Ray Chassis, May 14, 2026; Dexerto, Tadpole Haul Chassis, May 14, 2026; Unknown Worlds, Nov 3, 2026.
| Chassis | Recipe (Vehicle Fabricator) | What it does |
|---|---|---|
| Scout Ray Chassis | Plasteel Ingot x2, Advanced Wiring Kit x1, Dedicated Core x1, Strong Acid x1 | Hydrofoil wings for speed; crosses the first chasm and escapes the leviathan; its own hardpoint for a Portable Locker |
| Tadpole Haul Chassis | Titanium Ingot x4, Strontium x3, Enameled Glass x3, Dedicated Core x1 | Slower; seats for passengers and a much larger inventory for moving resources |
| Frog chassis | Not announced | Arms and legs for the Tadpole: a strong jump, a dash and climbing (Unknown Worlds, Nov 3, 2026); arrives with Early Access 2 in December 2026 |
Recipes as PCGamesN and Dexerto listed them on the launch build (May 14 to 18, 2026); no guide has republished them after updates 1.1 and 1.2. The intermediate parts are on Crafting Recipes and Fabricator and Processor.
Where is the Scout Ray in Subnautica 2?
The Scout Ray Chassis is a single scan inside the Tadpole Pens, in the hot biome east of the Lifepod; one scan registers it for good (Dexerto, May 14, 2026). The Pens' water is hot, so it needs the Heat Tolerance Adaptation first, which Dexerto says comes from destroying the Bloom Cankers on the Angel Comb by the black box there and then using the cleansed Gene Donor. The door also needs a keycode, on Tadpole and Story Walkthrough. Jay Dunna's May 25, 2026 guide, before update 1.1, reaches the Pens about 585 m east of the Lifepod and scans the Scout Ray just inside, beside a Tadpole to scan; he calls the heat Adaptation not really required for that trip.
Its parts reach into the mid game: Plasteel Ingots come from Lithium and Titanium at the Processor, the Advanced Wiring Kit from two Wiring Kits and Gold, the Dedicated Core from two System Chips and an Advanced Wiring Kit, and Strong Acid from Necrolei Cysts processed at the Processor, harvested in the hot biome (Dexerto). Since update 1.2 Necrolei Cysts can be grown in a Growbed (Farming).
To fit it, dock the Tadpole alongside the Scout Ray. In Kysen's May 14, 2026 guide, on the launch build, the chassis is made under the dock, the Tadpole attaches as it drives over it, Q detaches it, and the Scout Ray makes the craft faster and quicker to turn. The chassis also has a carry point for a Utility such as a Portable Locker; 1.2 fixed a detached Scout Ray spinning when a Utility was detached and reattached, and Buddy System Hotfix 1 fixed a collision that blocked its carry point (Unknown Worlds, 1.2; Hotfix 1). Its light was given soft shadows in update 1.1, and Buddy System Hotfix 2 fixed its effects.
Where is the Haul chassis in Subnautica 2?
The Tadpole Haul Chassis needs three fragments in the Alien Ruins area, about 1,300 m east of the Lifepod, as Dexerto describes them: one in a stone cave entrance on the right, southeast of the Alien Ruins camp; one on the left side of a large pillar-like rock about 105 degrees east of the ruins; and the third northeast of the second (Dexerto, May 14, 2026). Its Strontium comes from Celestine in the deep water near the ruins, and its Enameled Glass from Glass and Creature Enamel, mined with the Sonic Resonator from white deposits on black rock there. Jay Dunna's May 25, 2026 route, before update 1.1, finds one fragment beside the Depth Module Mk. 1 data card and the other two close together past the Angel Comb, east of the research outpost, with one by a dive ladder.
The Haul is the co-op chassis: other players can sit in it, and Unknown Worlds' patches name both sitting in a HAUL and riding as a passenger (Unknown Worlds, 1.2). Since Buddy System Hotfix 1 (Sep 1, 2026) players attached to a Tadpole or a Haul reliably get oxygen, and 1.2 fixed oxygen not running down for someone in a HAUL of an unpowered Tadpole, plus spinning when the Haul was detached with a player in it. Neither guide gives its storage size in slots as of Nov 4, 2026. More on playing together is on Co-op and Multiplayer. The clip is Unknown Worlds' May 9, 2026 showcase, played before launch: the developers call the Haul a work rig for driving friends to a job together, give it a slow-building acceleration as its own identity, and show the riders watching the driver's camera.
The Frog chassis
Unknown Worlds named the Frog chassis in its Nov 3, 2026 episode of Voyage to Early Access 2, "From Creatures to Chassis": a "stompy Frog chassis, coming with our next content update in December", alongside new and returning creatures and new Biomods (Unknown Worlds). The episode's video says more than the written post: the developers call it "like an exosuit", comparable to the first game's Prawn suit, "a set of arms and legs that attach to your Tadpole", with "a very strong jump", a dash and climbing. Creative Director Anthony Gallegos had said on Oct 15, 2026 that players call it the Sea Frog but that it is the Frog Chassis in the game. Its recipe and blueprint location are not published as of Nov 4, 2026. Everything else known about the update is on Early Access 2.
Chassis bugs fixed
Update 1.2 fixed chassis signals staying on screen once fitted, a fitted chassis's signal staying in one spot after a reload, players trapped inside the Tadpole after detaching a chassis and backing up, and a player trapped when a chassis was attached during docking. Buddy System Hotfix 2 (Oct 6, 2026) fixed destroyed Tadpoles with a chassis attached failing to teleport back inside the Early Access fence (Unknown Worlds).
Frequently asked questions
What chassis are in Subnautica 2? The Scout Ray (speed) and the Haul (passengers and cargo), as of Nov 4, 2026. The Frog chassis arrives with Early Access 2 in December 2026.
How do you get the Scout Ray in Subnautica 2? Scan its fragment inside the Tadpole Pens in the hot biome east of the Lifepod, which needs Heat Tolerance, then build it at the Vehicle Fabricator from Plasteel Ingot x2, Advanced Wiring Kit x1, Dedicated Core x1 and Strong Acid x1.
What is the Haul chassis recipe in Subnautica 2? Titanium Ingot x4, Strontium x3, Enameled Glass x3 and Dedicated Core x1 at the Vehicle Fabricator, as PCGamesN and Dexerto listed it on the launch build.
When does the Frog chassis come out in Subnautica 2? With Early Access 2, which Unknown Worlds said on Nov 3, 2026 is coming in December 2026; no day is announced.
Can you remove a chassis in Subnautica 2? Yes. A chassis can be undocked at any time and left behind, useful in narrow caves where the Scout Ray's wings make the Tadpole wider.
Sources
- Subnautica 2 | Dev Vlog - Crafting the Tadpole, Subnautica, Dec 9, 2025 (video)
- Subnautica 2 | Early Access: First Dive Showcase, Subnautica, May 9, 2026 (video)
- Subnautica 2 - The Ultimate Beginner Guide!, Kysen, May 14, 2026 (video)
- Every TADPOLE UPGRADE & Where to Find Them in Subnautica 2 (w/ Timestamps), Jay Dunna, May 25, 2026 (video)
- Subnautica 2 | The Voyage to Early Access 2 Begins, Subnautica, Oct 15, 2026 (video)
- Subnautica 2 | Voyage to Early Access 2 - From Creatures to Chassis, Subnautica, Nov 3, 2026 (video)
- Subnautica 2 Early Access 1.2 - Buddy System Update, Unknown Worlds, Aug 19, 2026
- Subnautica 2 Early Access Buddy System Hotfix 1, Unknown Worlds, Sep 1, 2026
- Subnautica 2 Early Access Buddy System Hotfix 2, Unknown Worlds, Oct 6, 2026
- From Creatures to Chassis - Voyage to Early Access 2, Unknown Worlds, Nov 3, 2026
- How to build a Tadpole in Subnautica 2 and all upgrades, PCGamesN (Christian Vaz), updated May 18, 2026
- Scout Ray Chassis, Dexerto, May 14, 2026
- Tadpole Haul Chassis, Dexerto, May 14, 2026
Moments
Subnautica 2 | Dev Vlog - Crafting the Tadpole
Subnautica
Every TADPOLE UPGRADE & Where to Find Them in Subnautica 2 (w/ Timestamps)
Jay Dunna
Subnautica 2 - The Ultimate Beginner Guide!
Kysen
Subnautica 2 | Early Access: First Dive Showcase
Subnautica
Subnautica 2 | Voyage to Early Access 2 - From Creatures to Chassis
Subnautica
Photos
Related
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Tadpole UpgradesSubnautica 2's Tadpole has four upgrade slots for six modules made at the Modification Station: Engine Efficiency, Strike Armor, Cavitation Muffler, Photovoltaic Charger and Depth Modules Mk. 1 and Mk. 2. Mk. 1 raises crush depth from 250 m to 450 m.
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Base PowerSubnautica 2 bases run on Solar Panels (1 to 8 energy per second by time of day), Hydroelectric Turbines in water currents, Thermal Plants by heat vents and Bioreactors burning fuel, linked by Power Transmitters and buffered by Power Storage. Without power a base makes no oxygen.
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Best Base LocationsThe guides' best base spots in Subnautica 2 are a plateau by a water current about 200 m east of the Lifepod for free turbine power, the thermal vents about 630 m east for steady Thermal Plant power, and an outpost near the Alien Ruins about 1,150 m east for the late game.
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FarmingFarming in Subnautica 2 means Growbeds, built for Titanium x1, that grow plants from a seed item such as a Pent, Lucifer Rotsac or Fibrous Pulp, and since update 1.2 Necrolei Cysts. The Metal Farm, an Axum machine, grows a chosen resource on base power.
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Anemone HillsThe Anemone Hills are Subnautica 2's biome of towering pink-and-green anemones about 300 m northwest of the Lifepod, 0 to 151 m deep, where the infected Heat Tolerance Angel Comb waits behind Bloom you clear with the Sonic Resonator.
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Coral GardensCoral Gardens and North Coral Gardens are Unknown Worlds' names for Subnautica 2's early coral areas around the Lifepod; update 1.1 (Jul 8, 2026) put a second Biolab and more Silver there, and 1.2 gave North Coral Gardens its own music.
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Dolerite SpiresThe Dolerite Spires are a maze of jagged volcanic pillars in Subnautica 2's starting region, shallow to mid depth, with Lithium and Titanium, Quaker's Meetinghouse and two Spires wrecks that All Things How lists for the High Capacity Air Tank and the Rebreather on the launch build.
See also
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Early Access 2Early Access 2 is Subnautica 2's next big content update, due in December 2026 with no day announced. Unknown Worlds promises a new region with several biomes, more of the colonists' and Axum story, new and returning creatures, a scarier Collector Leviathan, new Biomods and the Frog chassis for the Tadpole.
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Crafting RecipesSubnautica 2's recipes by station, as listed by Destructoid on May 16, 2026 (the Early Access launch build) with conflicts from other guides beside them, for example Titanium Ingot (Titanium x3 at the Processor), Wiring Kit (Silver x1, Copper Wire x1) and Basic Battery (Copper x2, Acidic Raion Pouch x1). Hotfix 3 cut Interior Wall cost to a quarter, and no guide has republished a full list since updates 1.1 and 1.2.
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Fabricator and ProcessorIn Subnautica 2 the Lifepod's Fabricator is damaged and cannot be fixed, so recipes marked "Requires Fully Functional Fabricator" need a new Fabricator built in a powered base (Titanium, Copper and Quartz, one each). Ingots come from the Processor, whose blueprint is scanned from a broken Processor in an abandoned base north of the Lifepod and which draws 10 energy per second.
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AdaptationsSubnautica 2 has four Adaptations, permanent body changes taken from Angel Combs, as of Nov 4, 2026. Pressure Tolerance comes in the opening, Digestion from an Angel Comb about 130 to 180 m north-northeast of the Lifepod, Heat Tolerance from an infected Angel Comb about 200 m northwest once the Sonic Resonator clears it, and Axum Vision from an Angel Comb about 1,800 m east.
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Story WalkthroughSubnautica 2's Early Access story runs from the Lifepod and the Welcome Center through the Digestion and Heat Tolerance Angel Combs, the Tadpole Pens and the Collector Leviathan's trench to the Axum ruins, Axum Vision, the Power Plant and the Observatory, where it stops as of Nov 4, 2026; there is no ending yet.