Understanding Lithium
A resource used for stronger materials and several upgrades.
This is an original reference for the first Subnautica. Your current depth rating, oxygen, available tools and navigation route determine when an objective is practical. Follow actual in-game PDA and Fabricator information for any values that vary by version.
How to use this information
Look in deeper or island-associated regions when your next blueprint requires it.
What to avoid
Do not descend into threatening water just because it holds a needed mineral.