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Base Building and the Sunbeam
Subnautica 2

Base Building and the Sunbeam

Learn to build a strong base in Subnautica 2, focusing on location, hull integrity, and essential components like the Moonpool and Scanner Room.

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Learn to build a strong base in Subnautica 2, focusing on location, hull integrity, and essential components like the Moonpool and Scanner Room.

Walkthrough
  1. 1
    Decide whether to expand your existing lifepod base or build a new, larger base elsewhere.
  2. 2
    Choose a location that is a convenient distance from areas you explore or visit often, considering proximity to energy sources like heated vents (for thermal plants), sunlight (for solar panels), or areas with resources for a bioreactor.
  3. 3
    Gather seeds for plants you wish to grow in your new base.
  4. 4
    Construct your new base, paying close attention to its structural integrity (also referred to as base integrity, hull integrity, or base hull strength).
  5. 5
    If your base's Hull Integrity drops to or below 0, leaks will occur, causing flooding. You must address the Hull Integrity first, then use the repair tool to fix damage. Depth affects how Hull Integrity is impacted by added components.

Recommended Base Components:

  • Fabricator/Radio/Medical Kit Fabricator: Recreate these if your base is too far from your lifepod to use them. They are inexpensive and small.
  • Reinforcements: Install these on walls to increase Hull Integrity. Most wall-mounted objects can be placed on reinforced walls if the reinforcement is installed first.
  • Bulkheads: Place these in doorways and hallways. They provide +3 to Hull Integrity, whether open or closed.
  • Foundations: Each foundation piece adds +2 to Hull Integrity and can be used for floodlights, spotlights, and exterior growbeds.
  • Interior/Exterior Growbeds: Useful for growing Creepvines and Acid Mushrooms for rubber and batteries, especially in new, deeper locations.
  • Moonpool: Provides a place to charge your Seamoth's power cell without needing to swap it.
  • Scanner Room: Scans for nearby resources, displaying them on a hologram. It has an upgrade console and a fabricator for modules. You can craft an equipable chip to view scan results on your HUD (Heads-Up Display). Scan speed and range can be upgraded. It includes two drone cams for visual exploration.
  • Water Filtration Machine: Provides a consistent source of fresh water and salt if you have the energy for it.
  • Battery Charger/Power Cell Charger: Essential for recharging batteries and power cells. Power Cell Chargers become more useful with the addition of other vehicles that use them.
  • Modification Station: Necessary for upgrading equipment.
Tips
  • Consider building multiple smaller bases in addition to one large central base.
  • Hull Integrity is affected by depth; adding more components at greater depths will reduce it more significantly.
  • Foundations can serve as a platform for exterior growbeds, allowing you to cultivate resources away from your main base.
  • The Scanner Room's drone cams allow for safe visual exploration of dangerous areas.
  • Powering your base depends on your location; thermal plants for heated vents, solar panels for sunlight, or a bioreactor for available resources.

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