Building the Perfect Multipurpose Room in Subnautica: A Comprehensive Guide to Designing Functional Spaces Underwater

Creating the perfect multipurpose room in Subnautica is a game-changer for your underwater base. The multipurpose room provides expansive space and flexibility, ideal for numerous base needs—whether you’re housing bioreactors, growing plants, using it as a fabrication hub, or designing an aquarium sanctuary. To get started, collect six titanium units and unlock the blueprint (usually with the scanner in the Grassy Plateaus or from wreck fragments). Once built, the multipurpose room offers 9x9 meters of uninterrupted floor area, making it the go-to structure for both function and aesthetics.

When optimizing your multipurpose room layout, think strategically: place storage lockers near fabricators for efficient crafting; line one wall with battery and power cell chargers; dedicate a section for a water filtration machine, and use vertical connectors or ladders for easy stackable base expansion. For advanced players, a double or triple-stacked multipurpose room can elevate base design, offering vertical farming or a grand alien containment display.

As an interior designer, I recommend considering both flow and aesthetics for your room. Position your growbeds where access feels organic, and use wall-mounted decorations—like posters or plant pots—to avoid floor clutter. Consider color schemes that complement your chosen location's biome: deep-sea blues for the Grand Reef, or warm sunlight hues for the Shallows. Drawing from my own design principles, I'd use a software like a Room Planner—even for gaming interiors—to visualize diversified layouts, ensuring both practical workflow and visual harmony in your virtual habitat.

Tips 1:

Stack multiple multipurpose rooms vertically to save precious seafloor real estate while increasing storage and living space.

FAQ

Q: How do I unlock the multipurpose room in Subnautica?

A: Scan multipurpose room fragments in the Grassy Plateaus or adjacent wrecks to unlock the blueprint.

Q: Can you stack multipurpose rooms?

A: Yes, you can stack multipurpose rooms vertically, adding ladders or vertical connectors for access.

Q: What is the best use for a multipurpose room?

A: It’s most commonly used for farming, storage, reactor rooms, and alien containment aquariums.

Q: Does adding windows or doors weaken the structure?

A: Yes, adding windows and certain modules reduces hull integrity; reinforce walls if needed to prevent leaks.

Q: Can you connect multipurpose rooms horizontally to other rooms?

A: Absolutely, multipurpose rooms connect to corridors, T-junctions, and other modules for versatile base layouts.