Subnautica 2 Tools Guide

Recommended tool order

Prioritize tools by survival impact and progression gates: Scanner first, Habitat Builder next, fully functioning Fabricator after that, then Sonic Resonator, Repair Tool, depth gear, and mobility upgrades.

• Scanner: turns ruins, fragments, and wrecks into progression instead of scenery.
• Habitat Builder: solves storage, power, oxygen reset, and full Fabricator access.
• Sonic Resonator: opens large ore deposits and blocked biofilm routes.
• Repair Tool: opens damaged doors and leads into depth gear routes.
• Rebreather and vehicle path: make deeper and longer routes repeatable.

How to avoid tool bottlenecks

Pin the recipe, check missing materials, and avoid long trips until you know whether the missing dependency is a scan, station, or raw resource.

• If the recipe is hidden, build a base Fabricator instead of using only the Lifepod station.
• If a large ore says unknown tool, unlock the Sonic Resonator.
• If a tool needs lead, use the northeast ravine route.
• If a vehicle path needs a Power Cell, check salt and Strong Acid requirements.

Tool blocker checklist

When a tool path stalls, identify the exact blocker before swimming away from base.

• Missing scans: go to the fragment route, not the resource route.
• Missing material: open the matching resource page and gather only that bottleneck.
• Missing station: build the base Fabricator or vehicle infrastructure first.
• Missing adaptation: follow the story/adaptation route before entering dangerous terrain.
• Missing oxygen: upgrade tank or build an outpost before trying the same route again.

Tools FAQ