The short answer
Choose Scout Ray for travel and Haul for cargo trips. Chassis are built at the Vehicle Fabricator; upgrade modules use the Modification Station. One chassis can be attached at a time.
Before you start
- Tadpole, Vehicle Fabricator, a clear Moonpool and the required chassis blueprint.
- Install Mk. 1 before taking the vehicle below 250 m. The Haul scan circuit includes deeper territory.
Choose by what you need to carry
| Chassis | Purpose | Vehicle Fabricator recipe |
|---|---|---|
| Scout Ray | Faster travel and turning | 2 Plasteel Ingots · 1 Advanced Wiring Kit · 1 Dedicated Core · 1 Strong Acid |
| Haul | Cargo and passenger space | 4 Titanium Ingots · 3 Strontium · 3 Enameled Glass · 1 Dedicated Core |
Sources for this section
Scout Ray scan
At the Tadpole Pens, follow the interior passage to the Moonpool and scan the Scout Ray. Finish the Pens access steps first if you are still locked out.
Sources for this section
Three Haul scans in one planned circuit
- Scan the wreck in Ruby’s cave near the Mk. 1 data card. An unmodified Tadpole must stay above its crush depth.
- East of the Research Base, find the hanging Cicada wreck near Singh’s black-box signal. Search the lower shelf for the chassis leaning against a railing.
- Shacknews reports another scan about 180 m northeast of that shelf, on a rocky plateau. The deeper green-pool Metal Farms area provides another reported option if the plateau scan does not complete your blueprint.
- Check the blueprint’s scan count before returning to the Vehicle Fabricator.
Sources for this section
Attach and check clearance
Sources describe Haul cargo capacity differently, so this guide does not promise a slot total. Check the actual containers in your build before planning a full-load return.
- Detach the current chassis using the displayed interaction before fitting the replacement.
- Attach the new chassis in open space. Test the approach to the dock before filling the cargo bay.
- If docking reports insufficient space, enlarge the room and Moonpool clearance and remove obstructions. Current builds reject blocked docking.
- Before a co-op departure, check power, hull and every rider’s oxygen. Hotfix 1 corrected oxygen depletion for powered Tadpole and Haul riders.
Your checklist
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Research checked 2026-09-12. This is a source-based guide; Kingy has not independently play-tested these steps. Evidence and coverage.