How to Get Ion Crystals in Subnautica
Head to the Alien Thermal Plant in the Inactive Lava Zone – it's a hot spot for Ion Crystals, pun intended!
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Stumble across them while exploring Alien Caches. They're usually in Precursor technology sites, like the Disease Research Facility or Quarantine Enforcement Platform.
You can find Ion Crystals in Alien Caches and bases scattered around the map. Check the Alien Thermal Plant and the Primary Containment Facility for a good haul!
You can craft Ion Cubes into Ion Crystals at the Fabricator once you’ve gathered the necessary blueprints!
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