Subnautica Story Guide

Complete walkthrough of the main story. Warning: contains spoilers!

SPOILER WARNING: This guide contains major story spoilers. Play the game blind first for the best experience.

Chapter 1: Crash Landing

  • 1Survive the Aurora crash and repair your Lifepod.
  • 2Craft basic tools: Scanner, Survival Knife, Repair Tool.
  • 3Explore Safe Shallows and Kelp Forest for resources.
  • 4Follow radio signals to discover other lifepods.
  • 5Build your first base with Habitat Builder.

Chapter 2: Exploring the Aurora

  • 1Craft Radiation Suit to enter the Aurora wreck.
  • 2Use Laser Cutter and Propulsion Cannon to access sealed areas.
  • 3Repair the reactor to stop radiation leaking.
  • 4Find Seamoth and Prawn Suit fragments in wreckage.
  • 5Download data from Aurora terminals for story clues.

Chapter 3: Going Deeper

  • 1Build Seamoth for efficient mid-depth exploration.
  • 2Discover Degasi survivor bases in multiple biomes.
  • 3Explore the Mushroom Forest, Grand Reef, and Blood Kelp Zone.
  • 4Find clues about the Precursor alien civilization.
  • 5Build Cyclops for deep-sea mobile base operations.

Chapter 4: The Lost River & Lava Zones

  • 1Enter the Lost River through Grand Reef or Blood Kelp Zone.
  • 2Discover the Disease Research Facility.
  • 3Navigate to the Inactive Lava Zone with Prawn Suit.
  • 4Find the Thermal Plant and Alien facility.
  • 5Reach the Lava Lakes and the Primary Containment Facility.

Chapter 5: The Cure & Escape

  • 1Communicate with the Sea Emperor Leviathan.
  • 2Hatch Sea Emperor babies to produce Enzyme 42.
  • 3Cure yourself of the Kharaa bacterium.
  • 4Disable the Quarantine Enforcement Platform.
  • 5Build the Neptune Escape Rocket and launch to escape.