Subnautica 2 Beginner's Guide: How to Not Drown Immediately
Surviving a shipwreck is stressful enough without finding out you are allergic to every single fish on the planet.
I spent my first few hours in Subnautica 2 fighting a constant battle against my own pathetic lung capacity. Alterra promised you a new life, but the colony ship CICADA had other plans, leaving you stranded on an alien world where the ship's AI is weirdly obsessed with continuing the mission. Before you waste three hours swimming in circles looking for a snack that will not poison you, I am here to help. I have compiled the essential tips you need to get your bearings, find fresh water, and avoid becoming lunch for a leviathan.
Air and Sustenance
Keeping your lungs full and your stomach from rebelling are your immediate hurdles. You drop into this hostile ocean with zero preparation, so sorting out your basic bodily needs is step one.
Oxygen Management
You have a tiny air tank at first. Oxygen disappears fast. Before you panic and drown inches from the surface, remember to look straight up while swimming. You move significantly faster in the direction you face. Also, there is a two-second grace period after your tank hits zero where your vision blurs but you do not die immediately. Keep pushing.
For longer dives, keep an eye out for Oxygen Tunics. These blue bulbous plants expel bubbles that refill your air meter. I also highly recommend crafting an Air Bladder at your Lifepod as soon as you grab some Lucifer Rotsac and Titanium. Pop it to instantly restore 20 oxygen in a pinch. Finally, fabricate a Standard Air Tank the second you find enough Silver.
Food and Water
Hydration is easy. Grab the translucent blue Water Slugs crawling around the seabed near your Lifepod and toss them into the Fabricator for instant drinking water. Food is a different story. You start the game with Digestive Incompatibility. If you try to eat the local wildlife, you will get hurt. Check your Lifepod storage for some emergency Nutrient Blocks. To solve your stomach issues permanently, follow your NOA waypoint to an Angel Comb and unlock the Digestion Adaptation.
The Art of the Scan
Your Scanner is your lifeline to progression. If you ignore this tool, you will be stuck paddling in the shallows forever.
Scan Absolutely Everything
Point your scanner at flora, fauna, tools, and even random furniture inside abandoned settler habitats. Scanning unlocks blueprints for crucial gear, base modules, and the Tadpole mini-sub. Keep in mind that unlocking a blueprint often requires scanning multiple fragments of the same object. Even if you already have the recipe, duplicate scans reward you with raw materials, so keep scanning.
Do Not Ignore Your NOA
That big talking orb in your Lifepod is your main guide. When NOA tells you it has an update, listen to it. These updates provide waypoints to crewmate black boxes, which sit next to vital tools, lore audio logs, and the Angel Combs you need to unlock new mutations like Heat Tolerance.
Managing Your Junk
Your pockets are incredibly small. You start with a meager 20 inventory slots, and they fill up the second you start picking up quartz and titanium.
Travel Light and Build Lockers
Before you completely fill your bags with useless rocks, take only what you need. A few bottles of water and an emergency snack are enough for a scouting run. If you hit the motherlode while exploring, craft a Portable Locker. It holds 15 slots and you can physically carry it back to your base.
To permanently upgrade your carrying capacity, you need to find Biobeds. These are hidden inside underwater Colonist Bunkers. Interacting with a Biobed increases your endurance, giving you more inventory space, and your dexterity, which expands your hotbar.
Base Building Basics
You can survive out of the Lifepod for a little while, but establishing a real base opens up the game completely.
Establishing a Foothold
Scan the Habitat Builder at the Welcome Center southeast of the Lifepod to unlock base construction. Try to build near the natural blue wind tunnels so you can harness Hydroelectric Turbines for power. The biggest reason to build a base is the Base Fabricator, which removes the frustrating crafting limitations of your Lifepod unit.
Expect to build multiple bases as you push into deeper waters like the alien ruins. Make sure every new base has a Biobed to act as your respawn point, and a NOA device so you can keep getting objective updates without swimming hundreds of meters back home.
Dealing with Wildlife
Almost everything in this ocean wants to take a bite out of you. Learning how to navigate around the local predators will save you a lot of grief.
Keep a Low Profile
Do not hit the wildlife with your Survival Multitool. If you smack them, they will actively hunt you until you die or hide inside a base. Instead, use the Sonic Resonator to blast them away with a charged shot.
If you need to cross deep, terrifying stretches of water, stick close to the surface. Skimming the top layer keeps you off the radar of the massive leviathans lurking below. And do not bother throwing flares at small annoyances like mango nibblers or hammerheads. Flares only distract the massive monsters, like the needlers guarding the deeper ruins.
Important Early Upgrades
To wrap things up, I want to highlight the specific gear and abilities you should prioritize. Getting these early will smooth out your initial progression and keep you breathing a little longer.
