Walkthrough and Progression Guide
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☆ Best Base Locations
★ Base Building Guide
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This a walkthrough and progression guide for Subnautica 2. Learn what to do first with a step-by-step guide to unlocking features and progressing through the game here!
List of Contents
List of Contents
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Walkthrough and Progression Guide
Objectives Per Area Depth
| Depth | Objectives |
|---|---|
| 0-50m | Obtain Basic Tools |
| 51-75m | Make a Base |
| 76-100m | Investigate Tadpole Pens |
Subnautica 2's Survival Mode allows players to experience the game following its storyline of crash landing in Proteus, and finding the rest of the survivors.
This guide is divided into multiple depths, each with a set of objectives designed to help you familiarize yourself with the mechanics, tools and abilities, and progress through the game.
0-50m: Obtaining Basic Tools
| Step | Key Objectives |
|---|---|
| 1 | Finish Prologue |
| 2 | Gather Materials |
| 3 | Craft Tools |
| 4 | Power Up the Welcome Center |
| 5 | Craft Air Bladders |
Finish the Prologue
Once you can move your character, follow the tutorial to make your way out of the ship and towards the life pod.
Make sure to also keep an eye out for useful items that you can pick up, such as the Distraction Flare.
Gather Materials
After finishing the Prologue and reaching the Surface, start exploring around the Lifepod to gather materials by hand. Prioritize gathering Titanium to craft the Survival Multitool. You can find Titanium easily by heading to the -328020, 384801, -6455 coordinates.
Once you have the Multitool, prioritize gathering Quartz, Copper and Lucifer Rotsac which can be picked up by hand, then gather Fiber from Whip Gorgons and Acidic Raion Pouch which can both be harvested using the Multitool.
Craft Tools
After gathering the materials, you should have enough resources to craft the Basic Fins, Scanner, and Basic Battery.
During this stage, make sure to also collect Water Slugs to craft Fresh Water, and use the Nutrient Blocks to recover Thirst and Hunger respectively.
Power Up the Welcome Center
After crafting all the necessary materials, head to the Welcome Center, which can be found Southeast of your Lifepod.
Place the battery in the Power Outlet to power the PDA and Bio Lab. After reading the logs from the PDA, head to the Bio Lab to equip Biomods. Choose one Active and one Passive Biomod to help with underwater exploration.
Craft Air Bladders
To prepare for deeper exploration, and longer early-game underwater exploration, craft at least 3 Air Bladders.
Ideally, one Air Bladder should be used as a backup oxygen reserve, one Air Bladder to quickly ascend, and one Air Bladder saved for emergencies to either inhale or ascend, depending on the situation.
51-75m: Make a Base
| Step | Key Objectives |
|---|---|
| 1 | Scan Blueprints |
| 2 | Activate Biobeds |
| 3 | Make a Base |
| 4 | Gather Silver and Lead |
| 5 | Obtain Heat Tolerance Adaptation |
Scan Blueprints
After making your preparations, start visiting wreckages to scan blueprints. Certain Blueprints require multiple scans of the same item before being registered, so it is necessary to visit multiple Points of Interest.
As you explore and scan, prioritize scanning Sonic Resonators and Processors. These will allow you to break better ore and craft Ingots respectively, leading to better equipment.
Activate Biobeds
As you explore Points of Interest, make sure to activate Biobeds to increase your inventory and add more Hotbar slots.
While exploring, make sure to also look out for Angel Combs to unlock new Adaptations.
Make a Base
After scanning blueprints from multiple Points of Interest, start building your first Base.
Ideally, place your base away from the Lifepod, and near materials like Titanium, Lead, or Silver.
Gather Silver and Lead
| Silver | Lead |
|---|---|
| Subnautica 2 - Best Location for Silver Farming | Subnautica 2 How to Get Lead |
Continue your progress by gathering Silver and Lead. These materials are necessary to craft the Sonic Resonator, which will allow you to break new ore veins and obstructions.
During this stage, make sure to also upgrade your base, by adding Lockers, a Processor, and Solar Panels.
After gathering the materials and upgrading your base, craft a Sonic Resonator.
Obtain Heat Tolerance Adaptation
| 1 | Clear the Bloom Canker Infection |
|---|---|
| Locate Infected Angel Comb --- Locate the infected Angel Comb found at around 25m deep, at 300 Degrees Northwest from the Lifepod. | |
| 2 | Break Bloom Cankers.png --- Using the Sonic Resonator, break the Bloom Cankers. |
| 3 | Locate Second Infected Angel Comb --- Follow the rockbone structure to find the second infected Angel Comb. The second Angel Comb can be found near the Wander blackbox. |
| 4 | Break Second Bloom Cankers --- Repeat the process of destroying all the Bloom Cankers until the area is cleared of the miasma. While you're in the area, pick up the Wander Blackbox. |
| 5 | Main Angel Comb --- Continue following the rockbone structure until you find the main Angel Comb. Repeat the process of breaking the Bloom Cankers using the Sonic Resonator. Make sure to use your dash skill and keep moving to avoid the infected Marrowbreach. |
| 6 | Interact With Angel Comb --- Interact with the Angel Comb to obtain the Heat Tolerance Adaptation. |
76-100m: Investigate Tadpole Pens
| Step | Key Objectives |
|---|---|
| 1 | Expand Your Base |
| 2 | Gather Salt and Necrolei Cyst |
| 3 | Make a Tadpole |
| 4 | Investigate Tadpole Pens |
| 5 | Recover Zip's Blackbox |
| 6 | Return to Tadpole Pens |
Expand Your Base
At this point in the game, start expanding your base, to make room for additional lockers, and a separate room for a Moonpool.
Make sure to also keep your base powered, by adding additional Solar Panels or a Bioreactor.
Gather Salt and Necrolei Cyst
With your newly acquired Heat Resistance Adaptation, you should be free to explore the Hot Areas, found Southeast from the Lifepod.
Prioritize gathering Salt and Gold from the Hot area, and then head North to harvest Necrolei Cysts. Salt and Necrolei Cysts are necessary materials to craft a Tadpole.
Make a Tadpole
| 1 | Build a Tadpole |
|---|---|
| Place Moonpool --- Place a Moonpool in your base. A standard Moonpool requires 5 Titanium. | |
| 2 | Vehicle Fabricator and Tadpole Dock --- Place a Vehicle Fabricator and Tadpole Dock on the Moonpool. Vehicle Fabricator costs 2 Titanium Ingots, 1 Copper Ingot, and 2 Glass. Tadpole Dock requires 2 Titanium Ingots, 1 Silver Ingot, and 2 Copper Wires. Both structures require a total of 12 Energy per second to function within your base. |
| 3 | Build Tadpole --- Process the required materials to craft a Tadpole. You will need 2 Titanium Ingots, 1 Glass, 1 System Chip, and 1 Power Cell to craft a Tadpole. |
Investigate Tadpole Pens
Board your Tadpole, and head to the Tadpole Pens. If you received the mission from the Noetic Advisor, the Tadpole Pens should be marked on your screen.
Scan the blueprints from the Tadpole Pens, including the Tadpole Scout Ray Chassis. After scanning, head to the locked door and press the Red button.
Recover Zip's Blackbox
After being denied access to the Tadpole Pens, you should receive a new mission from the Noetic Advisor to recover Zip's Blackbox.
Head to the Hot Area again, and head further down to find the area with the numerous Black boxes.
Dive down towards the Purple Flora to recover Zip's Blackbox, and receive the access code needed for the Tadpole Pens.
Return to Tadpole Pens
Board your Tadpole and return to the Tadpole Pens, and press the Red Button again. With Zip's Blackbox retrieved, you should have access to the main room, where a Biopod and Noa Terminal can be found.
Interact with the Noa Terminal and speak with the Ghost to learn more about what happened, and what to do next.
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