To upgrade and expand your first base in Subnautica 2, unlock new building blueprints through exploring and scanning objects, and enhance your base with additional rooms, power sources, and functional facilities like fabricators and bio-reactors.

Getting Started with First Base Upgrades

Begin with the habitat builder found near your starting area. Use it to construct a basic corridor and a hatch, enabling entry into your base. Once your base is established:

steps

  1. Build Solar Panels: These provide essential oxygen and energy for basic functions inside your base. Ensure enough panels are installed to sustain power during nighttime.
  2. Gather Resources: Explore the surrounding areas to collect titanium and quartz, which are necessary for construction materials like corridors and other foundational components.

Unlocking Building Blueprints

New blueprints are unlocked by exploring the game world and scanning structures, objects, or machines left by previous inhabitants. Use the scanner tool and follow NOA missions guided by the terminal.

steps

  1. Activate the Black Box Signals: Check the NOA mission terminal, often located in your lifepod, for objectives marked as black box signals.
  2. Discover Sites: Follow the signals to find abandoned structures or wreckages. These locations may contain items or objects for scanning.
  3. Scan Objects: Use your scanner tool to scan objects like bio-reactors, fabricated tools, and furniture to unlock their respective blueprints. Some items may need multiple scans.
  4. Expand Exploration: Always enable the signal on your HUD to pinpoint locations with more opportunities for blueprint scanning.

A scanning tool is being aimed at an object in a room, likely used to unlock its blueprint.

The scanning tool aims at a workstation to unlock its blueprint. — Gamers Heroes

Augmenting Base Facilities

Add practical features and facilities to enhance survival and explore effectively.

steps

  1. Install Power Sources: Start with solar panels, then include bio-reactors and hydroelectric systems when unlocked.
  2. Place Survival Tools: Add fabricators for crafting items and oxygen tanks for increased underwater capability.
  3. Insert Storage Spaces: Floor lockers and storage containers help keep resources and tools organized.
  4. Create Functional Rooms: Build sections for specific purposes such as production, sleeping quarters, or a scanning lab.

An underwater base with a solar panel mounted on top, surrounded by seabed and marine environment.

A solar panel installed on top of an underwater base's module, contributing to its power generation. — IzPrebuilt

Resolving Structural Challenges

Encountering alignment and placement issues during base construction can be frustrating. Minimize these with forward planning.

A player in an underwater environment aligning a corridor module with another structure using a building tool.

A corridor module is being aligned and placed next to an existing structure underwater. — IzPrebuilt

Enhancing Aesthetics and Functionality of Base

To make your base visually appealing and more functional, use aesthetic and design features.

steps

  1. Add Aesthetic Elements: Use windows, decorative panels, and plants to improve interior and exterior appearance.
  2. Integrate Compatible Modules: Consider the compatibility of modules like moon pools for docking vehicles.
  3. Create Unique Layouts: Build distinct compartments for different functional areas, such as relaxation spaces or laboratories.
  4. Increase Vertical Depth: Add verticality to your base by stacking rooms and connecting them with ladders.

An underwater base wall with a hexagonal decorative window under the sea visible, a hand holding a tool displayed.

A section of a base wall with a decorative window illustrating aesthetic enhancement. — IzPrebuilt

Efficient Resource Gathering for Seamless Build Progress

Optimize the collection of materials for building and upgrading your base.

steps

  1. Search Biomes: Explore caves and specific underwater environments for essential resources such as titanium, quartz, silver, and gold.
  2. Use Scanners: Utilize the scanner tool to locate scarce resources more effectively.
  3. Balance Priorities: Focus on gathering materials required for key base upgrades and future expansions.

Underwater cave environment with visible mineral deposits on the ground.

Silver deposits are visible at the bottom of an underwater cave, encased in the rock formation. — KhrazeGaming

Manage Power Sources For Base Operations

Choosing the right power source ensures reliable base operations and oxygen supply.

Choosing a Power Source

  • Solar Panels: Ideal for starting with low power needs. They're cheap but less effective at night or deep underwater.
  • Hydroelectric Systems: Provide consistent power but need suitable locations to be placed, like underwater tunnels.
  • Bio-Reactors: Work anywhere and can be overclocked for high output but require manual input.
  • Thermal Power: Highly situational; ideal near thermal vents or in hot biomes.

Common Issues and Troubleshooting Tips

Address construction bugs and setbacks to ensure smooth base development.

FAQ

How do I upgrade and expand my first base in Subnautica 2?

To upgrade and expand your base, collect essential resources such as titanium and quartz to construct basic modules like corridors, hatches, and solar panels. Use the scanner tool to discover and unlock new blueprints and advance your base facilities with additions like bio-reactors, fabricators, and storage lockers. Follow NOA black box signals for guidance.

Where can I find base building blueprints?

Base building blueprints are unlocked through exploration. Search for black box signals and scan objects at designated locations highlighted by NOA missions. Key blueprints can be found by scanning human-made structures, furniture, and advanced machines.

How do I resolve base placement and structural issues?

To troubleshoot construction problems, ensure terrain compatibility and utilize the corridor method for alignment. Use the shrink/grow function to adjust dimensions and verify the build menu’s error list for items obstructing placement.

What are the best power sources for starting out?

Solar panels are the most accessible starter power source. As you progress, consider switching to hydroelectric systems for consistent output, bio-reactors for flexibility, or thermal power for specialized environments.

Sources

Screenshots on this page are frames from the videos below, used to illustrate the steps they describe. All rights remain with their creators.

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