Subnautica 2 Vehicles Guide: What's Actually Playable vs. What's Just Confirmed
Every Subnautica 2 vehicles guide online mixes together what you can actually build today with what's merely confirmed for a future update. Here's the real, current roster: the Tadpole, its two working chassis, and exactly what the Trident and Seafrog Chassis actually are right now. Not craftable.

TL;DR
- Only one vehicle is actually playable in Subnautica 2 right now: the Tadpole. Everything else you'll read about (Trident, Seafrog Chassis) is confirmed for a future update, not currently craftable.
- The Tadpole runs on a swappable chassis system, not separate vehicles. Currently two working chassis exist: Haul (cargo/passengers) and Scout Ray (speed).
- The PRAWN Suit was expected with the July 8 Adaptive Measures update. It didn't ship. No new date has been announced.
- Cargo in the Tadpole's hold survives your death and returns to base: items in your personal inventory don't. This changes how you should actually use it.
Search "Subnautica 2 vehicles" right now and most of what comes back either lists content that isn't actually in the game yet, or was written in May before the roster even settled. This guide draws a hard line between what you can genuinely build and pilot today and what's been confirmed for later, because conflating the two is the single most common mistake in every other version of this guide currently ranking.
Part of GamerEmpire's Subnautica 2 coverage. See the full Early Access review for broader impressions of the current build.
Quick Facts
| Currently playable vehicles | 1 (the Tadpole, with 2 working chassis) |
| Confirmed but not yet playable | Trident (large submarine), Seafrog Chassis |
| Expected but delayed | PRAWN Suit, missed its expected July 8 update window |
| Base Tadpole crush depth | 250m (450m with Depth Module Mk.1) |
| Base Tadpole acceleration | 1000 cm/s², 4 upgrade slots |
| Vehicle unlock requirement | Scan 3 Tadpole Fragments |
| Required base structures | Moonpool, then Vehicle Fabricator built on it |
What's Actually Playable Right Now
This is the part nearly every other guide gets muddled, because Subnautica 2's data files already contain references to vehicles that aren't implemented yet, which is exactly why some sites list a "6 vehicle roster" that doesn't reflect what you can actually build in a real playthrough.
The Tadpole is the only vehicle in the current Early Access build. It's a single-seat submersible, and unlike the original Subnautica's approach of building entirely separate vehicles for different jobs (Seamoth for speed, PRAWN Suit for depth and combat, Cyclops for base-on-wheels), Subnautica 2 front-loads that variety through a swappable chassis system instead. One hull, different chassis modules bolted on depending on what you need it to do.
To unlock it: scan three Tadpole Fragments, which unlocks both the Tadpole blueprint and the Vehicle Fabricator blueprint simultaneously. Build a Moonpool with clear space beneath it, place a Vehicle Fabricator on it, and you can craft the base Tadpole. A Vehicle Dock added to the same Moonpool lets you store and recharge it between trips.
The Two Working Chassis
| Chassis | Acceleration | Best for |
|---|---|---|
| Base Tadpole | 1000 cm/s² | General-purpose starting configuration, 4 upgrade slots |
| Haul Chassis | 250 cm/s² (slowest) | Cargo runs and passenger transport; catamaran-style pods add storage, seats up to 4 players |
| Scout Ray Chassis | Fastest of the working chassis, roughly 10 m/s top speed | Scouting dangerous zones fast, outrunning threats rather than fighting them |
The Mechanic Most Guides Don't Mention: Cargo Survives Death
This is genuinely the most useful thing to understand about the Tadpole, and it's buried or missing entirely in most competing guides. Dying in Subnautica 2 costs you your personal inventory: whatever you're carrying on your character is lost. The Tadpole's cargo hold works differently: materials stored in the vehicle survive your death, as long as the vehicle itself makes it back to base. That changes the actual math on deep, risky runs. Fill the hold before pushing into dangerous territory, and a death on the way back doesn't erase the trip. Only what you were personally carrying outside the vehicle is at risk. Using the Tadpole deliberately as a dedicated resource ferry, rather than just personal transport, is a real strategic shift once you internalise this.
What's Confirmed But Not Yet Playable
Worth being precise about this distinction, since it's the source of most confusion online:
| Vehicle/Chassis | Status |
|---|---|
| Trident (large multi-crew submarine, Cyclops successor) | Confirmed at the "First Dive" showcase, May 9, 2026. Its recipe exists in the game files but is flagged deprecated, not wired into the live Vehicle Bay menu. Cannot be built or piloted. |
| Seafrog Chassis (Exosuit-style walker) | Confirmed for a future update. Not currently craftable. |
| PRAWN Suit | Expected to arrive with the July 8, 2026 "Adaptive Measures" update (EA 1.1). It didn't ship with that update, and no new date has been given since. |
Why So Many Guides Get This Wrong
Subnautica 2's own game files already reference the Trident and Seafrog Chassis. Data-mining tools and wiki scrapers pick these up and list them as "vehicles in the game" without checking whether they're actually reachable in a normal playthrough. Add to that a wave of guides written in May, right at Early Access launch, before the chassis system had even settled into its current two-working-variant state, and you get a search landscape where "Subnautica 2 vehicles" returns a confusing mix of outdated information, unimplemented placeholder content, and genuinely current detail, all presented with equal confidence. This guide draws that line explicitly and will keep drawing it as new vehicles actually ship, rather than folding unreleased content into the roster the moment Unknown Worlds mentions it.
How This Compares to the Original Subnautica
Worth understanding the design shift if you played the first game. Subnautica's vehicle progression was built around three genuinely distinct crafts serving distinct roles at distinct depths: the Seamoth for early, agile exploration, the PRAWN Suit for deep combat and heavy-duty terrain work, and the Cyclops as a mobile base capable of housing and repairing the smaller vehicles. Progressing through the game meant building all three and switching between them depending on the situation.
Subnautica 2 collapses that structure into a single hull with interchangeable chassis instead. Rather than building three separate vehicles and maintaining fuel or power for each, you retool one Tadpole for whatever the current job demands: speed for scouting, cargo capacity for resource runs. It's a genuinely different design philosophy, not simply a smaller version of the original's roster, and it means the "which vehicle should I build next" question that defined a lot of the first game's progression pacing works differently here. Right now, with only two working chassis, that question mostly resolves to "which chassis does today's trip actually need," swapped in a Vehicle Fabricator rather than a separate build.
Upgrades and Depth Modules
Beyond the chassis choice itself, the Tadpole takes modular upgrades through its 4 upgrade slots, independent of which chassis is currently equipped. The Depth Module Mk.1 is the most immediately useful of these for most players. It extends the base Tadpole's 250m crush depth out to 450m, opening up meaningfully more of the map before you're forced back to the surface or risk hull failure. Additional upgrade slots exist for storage expansion, power efficiency, and other modifiers, though the exact full list continues to expand as Unknown Worlds patches the Early Access build. Treat any specific upgrade beyond the Depth Module as worth checking against current patch notes rather than assuming it's unchanged from when this guide was last updated.
Which Chassis Should You Actually Build First?
For most solo players, the honest answer is neither exclusively. Build the base Tadpole first regardless, since it's required to unlock the chassis system at all, then prioritise based on your actual playstyle rather than a generic recommendation. If you're playing solo and prioritising exploration speed over hauling capacity, Scout Ray is the better early investment: outrunning a threat is often the safer play than trying to fight or tank it in the current build's balance. If you're playing co-op, or if your sessions revolve around resource-gathering runs to fuel base expansion, Haul earns its slower acceleration back many times over in what it lets you bring home in a single trip, especially combined with the death-survival cargo mechanic covered above.
Frequently Asked Questions
Is the Trident in Subnautica 2 yet?
No. It's confirmed for a future Early Access update but isn't currently craftable or pilotable. Its recipe exists in the game files in a deprecated state, not wired into the live Vehicle Bay menu.
Did the PRAWN Suit come back in Subnautica 2?
Not yet. It was expected with the July 8, 2026 Adaptive Measures update but didn't ship with it, and no new date has been confirmed since.
How many vehicles does Subnautica 2 actually have right now?
One playable vehicle, the Tadpole, with two working chassis variants (Haul and Scout Ray) beyond its base configuration. Guides citing higher numbers are typically counting confirmed-but-unreleased content as though it's already playable.
What's the fastest way to get my first vehicle?
Scan three Tadpole Fragments to unlock both the Tadpole and Vehicle Fabricator blueprints, build a Moonpool with clear space beneath it, then place the Vehicle Fabricator on it to craft your first Tadpole.
Does the Tadpole's cargo actually survive if I die?
Yes, as long as the vehicle itself returns to base. This is distinct from your personal inventory, which is lost on death regardless of the vehicle.
Where to Go Next
- Subnautica 2 Early Access Review: the full picture of what's in the current build
- The Krafton/Unknown Worlds Bonus Dispute: the legal fight that shaped who's actually in charge of this game