InSubnautica, base-building is one of the core features that supports survival and exploration. Among the many modules you can construct, the Multipurpose Room stands out as the foundation of any serious underwater base. This large, cylindrical structure allows players to build interior items, place equipment, and expand their base significantly. However, the blueprint for the Multipurpose Room is not available from the start. You must explore and scan specific fragments to unlock it. Knowing exactly where to find the Multipurpose Room in Subnautica can greatly speed up your early game and improve your base setup.
What Is the Multipurpose Room?
The Multipurpose Room is a large interior space used to house crafting stations, storage units, grow beds, and more. It offers more volume than other compartments, making it ideal for setting up functional living spaces and operational hubs. With a solid layout and enough room to add multiple interior modules, it’s the most flexible room type in the game.
Key Features of the Multipurpose Room
- Large internal area suitable for farming, storage, and equipment.
- Connects easily with hallways, vertical connectors, and domes.
- Can be stacked vertically to create multi-floor bases.
- Supports external reinforcements to enhance hull integrity.
Why You Need to Find It Early
Without the Multipurpose Room, your base remains limited to narrow corridors and small compartments. This makes it hard to organize your gear or establish a reliable food source. Unlocking it early allows you to build a sustainable setup for long-term survival, especially if you’re planning extended trips to the Deep Grand Reef or Lost River.
Where to Find the Multipurpose Room in Subnautica
The blueprint for the Multipurpose Room is obtained by scanning its full structure, not fragments like most other blueprints. This means you need to locate the room in a data-rich area and use your scanner tool on the entire structure. The best place to find it is at the abandoned Degasi Seabases scattered throughout the map.
Best Locations to Find the Multipurpose Room
Here are the primary locations where players can find and scan the Multipurpose Room inSubnautica:
- Degasi Seabase – Jellyshroom Cave
This is the most reliable and accessible place to scan the Multipurpose Room. The base is located approximately 250300 meters deep inside the Jellyshroom Cave. It’s southwest of Lifepod 13, which you can locate early on using your PDA’s radio signals. The room is clearly intact and scannable. - Degasi Seabase – Deep Grand Reef
This more dangerous site is deeper, around 500 meters, and is best approached later in the game when you have access to better gear like the Seamoth with depth modules or the Prawn Suit. It also contains another Multipurpose Room that you can scan if you missed the one in the Jellyshroom Cave. - Floating Island Seabase
Located southwest of the starting area, the Floating Island is visible above the surface and easy to reach early in the game. This location contains three Degasi structures. Although the Multipurpose Room here may not always be scannable due to partial collapse, it’s still worth visiting for other blueprints and story progression.
Recommended Gear Before Searching
Before attempting to scan the Multipurpose Room, especially in deeper locations, make sure you are well-equipped for the journey. The caves and deepwater areas can be dangerous without proper tools.
Essential Equipment
- High Capacity Oâ Tank for longer underwater exploration.
- Seamoth or Prawn Suit to reach deeper biomes safely.
- Radiation Suit (early game) if exploring near the Aurora.
- Scanner for blueprint acquisition.
- Beacon to mark important locations for easy return trips.
- Food and water if planning to spend extended time underwater.
How to Scan the Multipurpose Room
Once you arrive at the correct location and find the intact Multipurpose Room, approach it and equip your scanner. Unlike small fragments, you need to scan the entire exterior of the room. The prompt will say ‘Multipurpose Room’ when you’re targeting it correctly. Hold down the scan button until progress completes. Once finished, the blueprint is automatically unlocked in your Habitat Builder menu.
Scan Tips
- Stand still and scan from a close angle to avoid scan interruption.
- If attacked by enemies, clear them first before scanning to avoid damage.
- Use lights or a flashlight if visibility is poor inside the caves.
What to Do After Unlocking the Multipurpose Room
Once you have the blueprint, return to your base or desired building site. Using the Habitat Builder, you can now construct the room using the following materials:
- 6 Titanium
After placing the Multipurpose Room, you can reinforce it with bulkheads and reinforcements if your base is in deep or high-pressure environments. Start adding interior pieces like wall lockers, a fabricator, bioreactor, or indoor growbeds. These items turn your base into a fully functional survival hub.
Combining With Other Structures
The Multipurpose Room can be stacked vertically or connected horizontally using corridors and other room types. This allows you to expand your base in creative ways, from multi-story towers to wide, horizontal layouts connected by glass tubes. Many players choose to dedicate individual rooms for specific purposes:
- Room 1: Storage and crafting.
- Room 2: Indoor farming with growbeds and planters.
- Room 3: Power room with bioreactor or nuclear reactor.
Planning your base layout around multiple Multipurpose Rooms gives you a more organized and efficient setup as the game progresses.
Finding the Multipurpose Room inSubnauticais a major step toward building a sustainable, efficient underwater base. Whether you discover it in the Jellyshroom Cave, Floating Island, or Deep Grand Reef, scanning the room unlocks a vital component of your survival toolkit. With just a scanner and a bit of preparation, you can unlock this blueprint early in your playthrough and take full advantage of its versatility. From farming and crafting to long-term habitation, the Multipurpose Room becomes the heart of your underwater operations, making every trip back to base safer and more rewarding.