Subnautica’s story is one of the most unique narrative experiences in gaming — told almost entirely through environmental storytelling, audio logs, and the discoveries you make as you explore an alien ocean. There is no quest marker that says “go here to advance the plot.” Instead, the game trusts you to explore, find things, and piece together what happened. For players who enjoy this approach, it is extraordinary. For players who get genuinely stuck and do not know what to do next, it can be frustrating. This guide is a no-heavy-spoiler story progression guide that tells you what to do next without telling you exactly what you will find.
Phase 1: Immediate Survival and Initial Exploration
The first goal is survival: Seaglide, basic food and water solution, Scanner in hand, initial biome exploration around your Lifepod. During this phase, your story trigger is the Radio — listen to every message and follow the first signal to its source. This will lead you to a location with story context and essential blueprint fragments. Do not skip radio messages. They are not optional background noise; they are the game’s narrative beats.
Phase 2: The Aurora and the Radiation Problem
You will notice the Aurora — the crashed ship — radiating a visible contamination effect that damages you if you approach. You need to deal with this eventually, but you must prepare. The Radiation Suit blueprint fragments are in the shallow wreckage fields. Find them, build the suit, and when you are ready, approach the Aurora. Inside the Aurora are essential blueprints and significant story context about why you are on this planet.
Phase 3: Going Deeper — Medium Depth Biomes
After the Aurora, the game opens up significantly. Your next goal is the Seamoth — the small, fast submarine that makes medium-depth exploration viable. Seamoth fragments are in the Kelp Forest and Grassy Plateau wreckage. Building the Seamoth is a major milestone: it dramatically extends your exploration range and enables reaching the first alien structures. Follow signals from your PDA to Alien Architect ruins — these are the next major story layer.
Phase 4: The Alien Facilities
The story’s deepest layer involves the Alien Architect civilisation — their history, their disease research, and the reason their technology is scattered across Planet 4546B. Finding the Alien Facilities requires significant depth capability — both the Seamoth with depth upgrades and eventually the Prawn Suit. The facilities are in the deep biomes: Sparse Reef transitions, the Sea Treader Path, and ultimately the Lost River. Follow the signals from the alien terminal encounters to find each facility in sequence.
Phase 5: The Endgame
The endgame of Subnautica involves the game’s deepest locations — the Lost River and the Inactive Lava Zone. Without spoiling specifics: you will need the Cyclops submarine with depth upgrades, the Prawn Suit with drill arm, and significant resource preparation. The story’s culmination is both mechanical (building a specific structure) and narrative (understanding what the Architects left behind). Take your time with this phase — rushing the endgame robs it of its impact.
What To Do When You Are Stuck
- Read your PDA database entries — new entries often appear after discoveries that point toward the next objective
- Explore a biome you have not fully explored — story fragments are scattered, not concentrated in one area
- Check your radio — a new signal may be waiting that you have not acted on yet
- Go deeper — most story progression requires descending further than you currently are comfortable with
- Watch Ricardo’s Subnautica series on RicardoPlays for stage-appropriate hints without complete spoilers
Story Videos on RicardoPlays
The RicardoPlays channel covers Subnautica’s story with Ricardo’s genuine first-time reactions to each major discovery — the alien ruins, the Leviathans, the story’s revelations. These videos are both entertainment and a practical reference if you are stuck at a specific point in the game. Subscribe for the full Subnautica story series.