Mercury Ore
Mercury Ore is a rare deep-sea mineral in Subnautica 2, harvested from lava-zone outcrops in extreme biomes. It powers advanced electronics, computer components, and end-game tool crafting that gates late-game progression.
Quick Info
How to Get & Where to Find
Mercury Ore is mined from Basalt Outcrops deep below the surface. The extreme depth and ambient lava flows make every expedition dangerous; bring a Prawn Suit or Cyclops with reinforced hull modules and a full inventory of oxygen tanks.
Lava Zone
900–1300m — basalt outcrops along active lava rivers and magma floors.
Highest yield — extreme heatInactive Lava Zone
1000–1500m — cooled basalt formations that are safer to navigate.
Cooler alternativeLost River Junction
800–1100m — rare outcrops near the deeper Lost River passages.
Mid-game gatewayUses & Recipes
Mercury Ore sits at the top of the late-game electronics branch. It enables computer components used in advanced scanner arrays, sensor suites, and several end-game tool recipes that are otherwise locked.
Computer Chip
Core component for advanced electronics and Prawn Suit modules.
Advanced Scanner
Long-range scanner for detecting wrecks and rare biomes.
Cyclops Sonar Upgrade
Reveals hidden terrain and leviathan positions around the sub.
Crafting Calculator
Plan your total Mercury Ore needs across all recipes.
Tips & Strategies
Bring a Reinforced Prawn
The Prawn Suit Drill Arm is the only efficient way to mine Mercury at depth. Reinforce it with depth modules and bring repair materials because lava heat and leviathans both deal heavy damage.
Avoid Active Lava Pools
Active lava rivers deal continuous damage. Stay on cooled basalt ledges and the Inactive Lava Zone when possible to extend your safe mining window.
Stack Up Before You Go
Mercury Ore has a low drop rate. Bring 8–10 inventory slots free plus a locker crate so you can offload other resources and keep mining without returning to base.
Pin Basalt Clusters
Drop beacons at every Mercury-rich basalt cluster you find. Basalt respawns, and pinning saves you from re-scouting lava tunnels every expedition.
Related Resources
Map Locations
Mercury Ore clusters along the Lava Zone basalt fields and the cooled formations of the Inactive Lava Zone. Pin deep mining routes on the interactive map for safe expedition planning.
View on Interactive Map →Related Guides
Lava Zone Survival
Heat management, leviathan avoidance, and Prawn Suit loadouts.
Prawn Suit Loadouts
Best arm combinations for deep mining and combat.
Cyclops Fabrication Guide
Build, upgrade, and use the Cyclops for deep expeditions.
End-Game Electronics
Recipes and tools unlocked by Mercury Ore and Ion Cube.
Frequently Asked Questions
Where can I find Mercury Ore?
Mercury Ore drops from basalt outcrops in the Lava Zone and Inactive Lava Zone biomes, both at extreme depth. The Inactive Lava Zone is safer because the basalt has cooled and lava rivers are absent.
What is Mercury Ore used for in Subnautica 2?
Mercury Ore is used for advanced electronics, computer components, and several end-game tool recipes. It gates Cyclops sonar upgrades, the Advanced Scanner, and Prawn Suit modules that require precise circuitry.
How rare is Mercury Ore?
Mercury Ore is rare. The drop rate is lower than common lava-zone resources, and the deep biome hazards make every expedition costly. Plan a full Prawn Suit run rather than casual dives.
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