Engine Efficiency
HarvestMaterialOverview
Optimizes engine function in real time to reduce power use by 20%. Stacks up to four times (max 80%). While not currently linked to any crafting recipe as an ingredient, Engine Efficiency has direct applications in survival gameplay and may gain additional crafting uses as Subnautica 2 development continues through Early Access. Intermediate materials like Engine Efficiency create the logistical challenge that defines Subnautica 2's survival crafting. Unlike raw resources found in the world, materials must be intentionally produced, adding a planning layer between exploration and equipment readiness.
How to Obtain
Tips & Strategy
Keep Engine Efficiency organized in labeled storage near your primary crafting station — maintaining an ordered inventory prevents wasted time searching for materials during urgent crafts.
Explore different biomes systematically to discover all Engine Efficiency sources — harvested organic resources often appear near specific flora or fauna, and identifying these associations makes future gathering predictable.
Track your Engine Efficiency consumption rate across active projects — knowing burn rate helps you time gathering runs to prevent the frustrating mid-build shortage that forces a context switch from construction to resource hunting.
Subnautica 2 Gameplay
Engine Efficiency
material · harvest- Category
- Material
- Obtain
- Harvest