Subnautica: 10 Pro Tips to Explore the Deep and Survive 4546B

Subnautica drops you onto an alien ocean world with little more than a survival pod and a sea of unknowns. The beauty of 4546B is matched only by its lethality — from oxygen-hungry depths to leviathan-class predators. Whether you're a new diver or a seasoned veteran, these ten pro tips will keep you alive and help you uncover the planet's secrets.

10 Pro Survival Tips for 4546B

1. Master Your Oxygen Budget — Before you explore, craft a High Capacity O2 Tank and always keep an eye on your oxygen meter. Plan return trips with a 10-second buffer to avoid panic swimming. Coral tubes and brain coral at the surface can restore breathable air, but don't rely on them when you're deep.
2. Build a Seaglide ASAP — This handheld propulsion device significantly reduces travel time and lets you outrun many threats. Its built-in light and hands-free navigation make it your best early-game tool. Craft it from a battery, lubricant, and wiring kit before you venture beyond the Safe Shallows.
3. Scan Everything You Encounter — Your Scanner is the key to unlocking blueprints. Fauna, flora, fragments, and even crashed pods yield valuable data. Scanning fragments of Seamoth and Cyclops components is crucial for exploring deeper biomes later. Don't skip scanning — it's how you learn to build advanced tech.
4. Beacons Are Your Best Friends — The ocean all looks the same when you're lost. Deploy beacons at key landmarks: your lifepod, cave entrances, resource-rich zones, and the edges of dangerous biomes. Color-code them and keep an active beacon on your current base to avoid getting turned around.
5. Establish a Base Early — A simple habitat with a fabricator, storage, and a power source (solar works in shallow areas) gives you a safe haven. Build near the border of the Kelp Forest and Grassy Plateaus for access to quartz, copper, and fragments. Expand with a water filtration system and a bioreactor to become self-sufficient.
6. Learn the Food & Water Loop — Hunger and thirst can kill you faster than any predator. Cook fish you catch with a Fabricator and craft filtered water from the Water Filtration Machine. Peepers and Bladderfish are reliable early sources. Always carry a few cured or cooked meals and a spare disinfected water for long expeditions.
7. Stalker Teeth? Yes, You Need Them — Enameled Glass, required for windows and advanced vehicle upgrades, is made from Stalker teeth. Drop a piece of metal salvage near a Stalker and it'll nibble on it, dropping teeth in the process. Collect a few dozen early to avoid frustrating scavenger hunts later.
8. Upgrade Your Vehicles and Dive Deeper — The Seamoth is your mid-game lifeline. Equip it with the Depth Module MK1, a Perimeter Defense System to shock attackers, and a Sonar upgrade to map murky waters. The Cyclops submarine serves as a mobile base — use its silent running mode to sneak past Leviathans if you'd rather avoid combat.
9. Respect the Aurora and Radiation — The crashed Aurora leaks radiation, so you'll need a radiation suit (and later, a repair tool) to board it safely. But the area is also rich in fragments and blueprints. Circle the ship's outer hull carefully, stock up on fire extinguishers, and avoid the reaper leviathans patrolling its bow and stern.
10. Don't Panic in the Deep — The ocean is terrifying, but panic causes mistakes. When a leviathan approaches, turn off your lights, keep still or creep away slowly in a Seamoth. If you're swimming, get behind solid terrain and use a Seaglide to sprint. Deeper, you'll encounter warpers — keep a medkit ready and watch your health bar as they teleport you out of your vehicle.

Beyond the survival checklist, remember that Subnautica's story unfolds as you dive deeper. Wrecks, alien data terminals, and signals will guide you toward a mystery that answers why you crashed here. Take your time, prepare well, and respect the silence beneath the waves.