Equipment

Bioscanner: Iso wreck route and upgrade recipe

Find the fragment, scan a Modification Station and begin Biomod research.

Early Access 1.2 · Buddy System Hotfix 1, September 3 amendment · Updated 2026-09-12

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The short answer

Follow Blackbox – Iso to the Cicada Wreck (EVA Prep). Bring a Repair Tool and scan the Bioscanner fragment inside; craft the upgrade at a Modification Station.

Before you start

  • Charged Scanner and Repair Tool; healing, oxygen and a marked return route.
  • For a Tadpole trip, check the actual depth rating and carry a spare cell.

From the 73 entrance to the fragment

  1. Find the wreck entrance marked 73. Inside, repair the damaged door to the right.
  2. Follow the open rooms. Iso’s black box is on a desk; check the second room’s left side for the Improved Fins scan.
  3. Descend through the circular floor hatch. Follow the pipe to the red-lit shaft.
  4. Scan the Bioscanner on the deck below. Repair the nearby door for an exit shortcut.
Sources for this section

Unlock the crafting station

A Modification Station scan is reported in the wreck’s upper area and at the Alien Ruins Research Station. Confirm its blueprint before returning home.

BuildIngredients
Modification Station2 Titanium · 2 Celestine · 2 Copper
Sources for this section

Upgrade your Scanner

Unequip the Scanner so the upgrade can consume it. The starter Fabricator does not perform this upgrade.

Output / stationIngredients
Bioscanner / Modification Station1 Scanner · 2 Enameled Glass · 3 Conduit Crystal
Sources for this section

Make the first research trip short

  1. Equip the Bioscanner and re-scan nearby species, including ones already in your ordinary Databank.
  2. Check the Biolab for research progress before attempting a hostile target.
  3. If oxygen, health or charge becomes your limiting resource, return and finish the research on another trip.
Sources for this section

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.

Independent fan guide. Subnautica 2 belongs to Unknown Worlds and KRAFTON. Game imagery from the official Subnautica website.