A route-first guide for deciding when the Tadpole is worth chasing, what is currently source-reported, and what still needs a S2GuideHub gameplay verification pass before exact coordinates go public.
Recommended stageMid game
Value pointRange, oxygen margin, co-op logistics
Route difficultyHigh
Risk levelHigh
Current statusEarly Access
Last checked2026-05-29
Quick call
Prioritize the Tadpole once basic survival loops are stable
The Tadpole is the first Blueprint Atlas page because it changes how a player thinks about distance, oxygen safety, hostile water, and return planning. Official store copy names the Tadpole as the submersible used to traverse biomes, while the Early Access roadmap makes clear that vehicles and related systems may continue changing.
Treat this page as a complete route framework, not a final coordinate walkthrough. The public route should become coordinate-level only after S2GuideHub checks the fragment path, build chain, and material counts in the current game build.
Route plan
Recommended route structure before coordinates
Use this order for the first verified route pass. Each stop needs a source note and a last-checked date before it becomes a finished walkthrough.
01
Prepare
Bring the Scanner, a strong oxygen margin, a beacon habit, spare storage, and a return rule. The Tadpole route is not a first-dive route.
02
Scan fragments
Player-guide sources currently report that three Tadpole fragment scans unlock the blueprint. S2GuideHub still needs to verify the safest stop order.
03
Build the base chain
Source-reported setup includes a Moonpool, Tadpole Dock clearance, and Vehicle Fabricator. Confirm space and materials before committing.
04
Craft and test
Craft the Tadpole only after the material list is checked against the live build. Run a short shakedown trip before pushing deeper.
05
Log changes
Record build version, fragment route, component counts, and any patch-sensitive notes for future updates.
Requirements
Source-reported requirements to verify
The table below intentionally separates what external guide sources report from what S2GuideHub has verified. This keeps the page useful without overstating confidence.
Requirement
Current note
Status
Tadpole blueprint
PC Gamer reports three Tadpole fragment scans are required.
Source-reported
Build station
PC Gamer reports a Moonpool, Tadpole Dock, and Vehicle Fabricator setup.
Source-reported
Crafting materials
PC Gamer reports titanium ingots, glass, a system chip, and a power cell for the final Tadpole craft.
Source-reported
Exact route
Coordinate and stop-order details stay unpublished here until S2GuideHub checks them in-game.
Needs checking
Route value
Why this unlock deserves the first full page
Tadpole planning has several high-value decisions packed into one route: whether the player is ready, whether the fragment route is safe, whether the base build chain is worth the cost, and what the vehicle unlock enables next.
01
Travel range
Turns some long swims into planned vehicle routes once the build is stable.
02
Safety margin
Creates a stronger return plan for deeper or more hostile water.
03
Co-op routing
Gives teams a clearer shared objective and base logistics checkpoint.
04
Upgrade path
Connects naturally to later depth, efficiency, chassis, and storage pages.
Source log
Sources checked for this first guide
Steam store page
Official page naming the Tadpole submersible and marking the game as Early Access.