Understand what the Scanner does and why searching for fragments advances crafting.
Understand the mechanic
The Scanner is a foundational exploration tool. Scanning discoverable fragments contributes toward technology blueprints, which eventually unlock new crafting possibilities. Researching a fragment is different from collecting the raw resource you need to build the resulting item.
Put it into practice
Explore wrecks and areas with visible fragments methodically instead of scanning only wildlife. After unlocking a blueprint, open the crafting interface and identify the ingredients before heading out for another dive.
- 01Carry the Scanner
- 02Inspect useful fragments
- 03Check unlocked blueprints
- 04Plan the next materials trip
Common mistake to avoid
Seeing a fragment does not mean you have a completed blueprint. Several scans may be required, and collecting material for a device does not bypass the blueprint requirement.
Editorial sources
References to official publishers or specialist game wikis, depending on the topic. Mechanics may change after the last editorial check.
Volpedia is independent and is not affiliated with Subnautica or its publisher. This article combines original editorial writing with credited game media where available. Refer to official sources for late-breaking changes.