Constructive criticism and other feedback is greatly appreciated! The guide is as thorough as possible considering my current knowledge of the game.

Please be aware of spoilers! Although this guide aims to be mostly spoiler free, some spoilers may exist. Only larger story spoilers will be covered, and minor spoilers will remain uncovered. To view covered spoiler text, simply hover your mouse over the black boxes.

For a guide on the original Subnautica, please see
https://steamproxy.net/sharedfiles/filedetails/?id=1933076955
Please see this original guide for info on basic game mechanics and other things that are the same in both games.

Thank you and enjoy the guide!

This section will cover all biomes, going over some pointers on how to find them, how dangerous each one is, and some important landmarks or items that you can find there.

• Delta Island
  -Located centrally in the map, directly south of your starting point in the game.
  -A great place to find crystalline sulfur.
  -The island itself is safe but the waters around it are patrolled by the cryptosuchus.
  -Contains Delta Station and the communications tower.
  
• Glacial Basin
  -Located south of Delta Island and accessed via the Glacial Connection and Glacial Bay.
  -Some resource outcrops are here, but generally not the best place to gather resources.
  -Snow stalkers and iceworms galore.
  -Contains the frozen leviathan and Parvan's bunker, as well as the Phi Robotics Center.
  
• Arctic Spires
  -To the north of the Glacial Basin.
  -Most of the same resources as the Glacial Basin.
  -Extremely dangerous with many ice worms in the area.
  -Contains the Arctic Spires cache and an Architect Teleporter. You can also find a blue trivalve egg.

• Shallow Twisty Bridges
  -Your main biome, similar to the Safe Shallows in the original game.
  -Many basic resources are here, like titanium, copper, and quartz.
  -Very safe.
  
• Arctic Creepvine Forest
  -Again similar to the creepvine forest in the original Subnautica. Found scattered around the Shallow Twisty Bridges.
  -Many basic resources here along with creepvine seed clusters and silver.
  -Safe, but watch out for sea monkeys, which steal your items.
  
• Twisty Bridges
  -A deeper version of the Shallow Twisty Bridges which contains some extra resources such as gold and table coral. Oxygen plants can help you reach some deeper areas within this biome.
  -Again relatively safe, but watch out for brute sharks and crashfish.
  -Contains Sanctuary Zero.
  
• Sparse Arctic
  -Located in a crescent shape towards the north of the Twisty Bridges.
  -Pretty sparse, as the name suggests. A good place to get salt.
  -Mostly safe except for brinicles, symbiotes, and brinewings.
  
• Thermal Spires
  -Located towards the south of the Twisty Bridges, surrounding most of Delta Island.
  -Lots of resources such as gold, silver, lithium, and lead; has the entrance to Koppa Mining Site.
  -Patrolled by cryptosuchuses, so be extra careful.
  
• Purple Vents
  -Located to the east of Delta Island.
  -Resources here include crystalline sulfur, lithium, and salt. Also contains two pieces of the Mercury Spacecraft.
  -Extremely dangerous, with cryptosuchuses and a chelicerate.
  
• Arctic
  -Two separate biome pieces, on the Southwest and Northeast corners of the map.
  -A good place to get diamond and magnetite; relatively safe.
  -The surface area of this biome contains Marguerite's Greenhouse in the Northeast.
  -The Southwest portion of this biome contains the glacial connection into the Glacial Basin.

• Deep Twisty Bridges
  -Underneath the Twisty Bridges.
  -A good place to find many resources such as diamonds and magnetite.
  -Very dangerous: Watch out for tentacle plants and squidsharks.
  
• Lilypad Islands
  -Located southeast of Delta Island.
  -Some of it is shallow, but a lot of it is not. An okay-ish place for many resources.
  -Many points of interest, including an entrance to Marguerite Maida's base, Omega Lab, and entrances to the Deep Lilypads.
  -Somewhat dangerous, with squidsharks all around.
  
• Tree Spires
  -Located south of Rocket Island, just west of the Lilypad Islands.
  -A good place to find resources like lithium or uraninite. Contains an entrance to Marguerite Maida's base.
  -Very dangerous, with brute sharks and chelicerates. Ventgardens make good places to hide in.
  
• Deep Lilypads Cave
  -Located as you would expect underneath the Lilypad Islands.
  -A good place to find nickel and magnetite. The Deep Lilypads cache is here; also has a yellow trivalve egg.
  -Not dangerous.
  
• Glacial Connection
  -Underneath the Glacier.
  -Not many resources here, but it leads to the Glacial Basin.
  -Watch out for jellyfish.
  
• Crystal Caverns
  -Located pretty much underneath Marguerite Maida's Base.
  -Lots of rare resources like nickel, kyanite, diamond, and uraninite; also has the the Crystal Caverns cache.
  -Very dangerous, with shadow leviathans all around.
  
• Fabricator Caverns
  -Located below the Crystal Caverns.
  -Not many resources here other than more kyanite, but contains the Fabricator Base.
  -Just like the Crystal Caverns, be careful of shadow leviathans.

Note: Only plants with some sort of use are listed. Flora are listed alphabetically.

• Cotton Anemone
  -Found in Lilypad islands Caves.
  -Releases flower spores, which are used to create benzene.
  -Young Anemones can be picked and used to make hydrochloric acid.
  
• Chinese Potato Plant
  -Found inside Marguerite's Greenhouse.
  -Used as a food-heavy food source.
  
• Creepvine
  -Found in the Creepvine Forest and Glacial Connection.
  -Yields creepvine seed clusters. Used to make lubricant and rubber.
  -Yields creepvine samples (cut with knife). Used to make fiber mesh, or a mediocre food source.
  
• Creepvine Root
  -Found in Creepvine Forest Caves.
  -Yields root pustules, which are currently only used as a very good bioreactor fuel.
  
• Frost Vase Plant
  -Found in the Glacial Basin and East Arctic.
  -Able to be picked up and mixed with salt to create water purification tablets.
  
• Gel Sack
  -Found in the Deep Twisty Bridges, Lilypad Islands, and Deep Purple Vents.
  -Used in aerogel and hydraulic fluid and as a mediocre food source.
  
• Fevered Pepper Tree
  -Found in the Glacial Basin and the Arctic Spires.
  -Yields fevered peppers, a food that warms the player rather than giving food or water; used to make spicy fruit salad.
  -Fevered peppers can be planted to grow your own tree.
  
• Ice Fruit Plant
  -Found in the Sparse Arctic.
  -A good source of water and a bit of food.
  
• Lantern Tree
  -Found in Outpost Zero.
  -A mediocre food and water source, very good as bioreactor fuel because it grows quickly.
  
• Horseshoe Shrub
  -Found in caves on Delta Island and in Marguerite's Greenhouse.
  -Shrub Nuts are a marginal food source that also heal 10 health when eaten.
  
• Marblemelon
  -Found in Marguerite's Greenhouse.
  -An incredible source of food and water.
  
• Oxygen Plant
  -Found in the Twisty Bridges, Deep Twisty Bridges, Creepvine Forest Caves, and the Active Mining Site.
  -Gives 30 seconds worth of oxygen, then closes to "recharge."
  
• Ribbon Plant
  -Found in the Twisty Bridges, Lilypad Islands, Glacial Basin, and a few other biomes.
  -Used to make batteries and a component of benzene.
  
• Preston's Plant
  -Found in Marguerite's Greenhouse.
  -The leaf is used in spicy fruit salads, and the fruit can be fed to baby snow stalkers (cute!).
  
• Spiral Plant
  -A rarer plant found only inside Ventgardens and in the Deep Lilypads Cache.
  -Spiral plant clippings are used to make synthetic fibers.
  
• Sulfur Plant
  -Found in the Twisty Bridges, Creepvine Forest Caves, Purple Vents, and Crystal Caverns.
  -A source of crystalline sulfur, once the residing crashfish has left.
  -Be careful of the crashfish.
  
• Table Coral
  -Found in the Twisty Bridges and Lilypad Islands.
  -Cut with knife to get table coral samples.
  
• Thermal Lily
  -Found on Delta Island.
  -Warms the player when they stand nearby.

Note: Only fauna that is exploitable or dangerous in some way is listed. Other fauna such as the pengwing are not listed.

• Arctic Peeper
  -Found in the Twisty Bridges, Creepvine Forest, Sparse Arctic, and Thermal Spires.
  -Can be cooked for +32 food and +5 water.
  
• Arrow Ray
  -Found in the Lilypad Islands and Tree Spires.
  -Can be cooked for +13 food and +5 water.
  
• Bladderfish
  -Found in the Twisty Bridges and Lilypad Islands.
  -Can be cooked for +18 food and +4 water.
  -Can also be fabricated into pure +20 water.
  -Can be combined with rubber to create an air bladder.
  
• Boomerang
  -Found in the Twisty Bridges, Creepvine Forest, and Thermal Spires.
  -Can be cooked for +21 food and +3 water.
  
• Featherfish
  -Found in the Lilypad Island, Purple Vents, Thermal Spires, and Active Mining Site. There are 2 varieties.
  -Can be cooked for +23 food and +3 water.
  
• Hoopfish
  -Found in the Twisty Bridges, Creepvine Forest, and Tree Spires.
  -Can be cooked for +23 food and +3 water.
  
• Nootfish
  -Found in the Lilypad Islands.
  -Can be cooked for +23 food and +3 water.
  
• Spinefish
  -Found in the Deep Twisty Bridges and Crystal Caves.
  -Can be cooked for +23 food and +3 water.
  
• Spinner Fish
  -Found in Creepvine Forest Caves and the Lilypad Islands.
  -Can be cooked for +23 food and +3 water.
  
• Symbiote
  -Found in the Sparse Arctic, especially around titan holefish.
  -Can be cooked for +23 food and +3 water.
  -Cannot be caught be hand; propulsion cannon or seatruck aquarium module only. They are aggressive.
  
• Triops
  -Found in the Deep Twisty Bridges, Lilypad Island Caves, Tree Spires, and Active Mining Site.
  -Can be cooked for +13 food and +5 water.

• Brinewing
  -Found in the Sparse Arctic.
  -Not super dangerous, but can shoot brine which freezes you for a few seconds.
  
• Brute Shark
  -Found in the Twisty Bridges, Tree Spires, and Lilypad Islands.
  -Deals 30 damage.
  
• Chelicerate
  -Found in the Purple Vents and Tree Spires.
  -Pretty much the reaper leviathan of Below Zero, deals 75 damage.
  
• Crashfish
  -Found in the Twisty Bridges and Purple Vents.
  -Not aggressive, but will attack if you get too close. They can deal a good amount of damage, but are easy to dodge.
  
• Cryptosuchus
  -Found in the Thermal Spires and Purple Vents.
  -Deals 30 damage; looks and sounds much deadlier though.
  
• Ice Worm
  -Found in the Arctic Spires.
  -Extremely dangerous dealing large amounts of damage. Lure away from you with thumpers.
  
• Jellyfish
  -Found in the Glacial Connection.
  -Not aggressive but will sting if you touch them.
  
• Lily Paddler
  -Found in the Lilypad Islands and Tree Spires.
  -Does not damage but can disorient the player as well as the compass and HUD elements; also changes visuals to be more confusing.
  -Can be ridden and controlled.
  
• Pengwing
  -Found in many shallower biomes.
  -Will attack if you steal their babies, otherwise harmless.
  
• Rock Puncher
  -Found in the Thermal Spires, Crystal Caves, and the Koppa Mining Site.
  -Only deals 10 damage. Basically just stay off the seabed.
  
• Sea Monkey
  -Found in the Creepvine Forest and Lilypad Islands.
  -Does not do damage but can steal your items.
  
• Shadow Leviathan
  -Found in the Crystal Caves and Fabricator Caverns.
  -Very dangerous, deals 75 damage.
  
• Snow Stalker
  -Found in the Glacial Basin and Arctic Spires.
  -Relatively dangerous; deals 35 damage. Try to squeeze past them.
  -Snow stalker fur can be collected using the spy pengling.
  
• Spikey Trap
  -Found in the Deep Twisty Bridges and deeper Lilypad Islands sections; looks like a plant.
  -Can latch onto the player, dealing a good amount of damage until you escape. If you let it eat you, it will deal 60 damage.
  
• Squidshark
  -Found in the Deep Twisty Bridges and Lilypad Islands.
  -Pretty dangerous; deals 40 damage.
  
• Symbiote
  -Found in the Sparse Arctic, usually in groups surrounding Titan Holefish.
  -Deals 7 damage and can be used as a food source (see edible fauna section).

• Snow Stalker
  -Yields snow stalker fur when interacted with with the spy pengling; used in the cold suit.
  -For more info, see the dangerous fauna section.
  
• Titan Holefish
  -Found in the Sparse Arctic.
  -Acts similarly to an oxygen plant. Watch out for symbiotes when attempting to retrieve oxygen.
  
• Trivalve
  -Two varieties (blue/orange).
  -Eggs hidden in the Deep Lilypads Caves (orange) and Arctic Spires (blue).
  -A pet, similar to Subnautica's cuddlefish.

Unlike in Subnautica where weather didn't exist and where a medkit fabricator meant access to easy health, Subnautica Below Zero does have weather, and no medkit fabricators. Because of this, some specialized food sources were added to the game to balance the cold and health in the game.

Below is a list of these food sources:

• Thermos
  -The thermos can be filled with coffee from a coffee machine, and is fabricated using titanium and glass.
  -When a full thermos is consumed, 2 water will be subtracted and 50 heat will be gained. An empty thermos is left behind. Currently a thermos cannot be half full; even if you don't need all the heat, all of the coffee will be consumed regardless.
  -Unlike in Subnautica, the coffee machine can only be used to fill a thermos, and cannot give coffee directly.
  
• Fevered Pepper
  -Picked from fevered pepper trees; gives 15 of both food and water.
  -Restores 34 heat.
  
• Lantern Fruit
  -Just like in Subnautica, the lantern fruit is a mediocre food source but now it restores 75 heat as well.
  
• Leafy Fruit
  -Leafy fruit is picked from leafy fruit plants on Delta Island.
  -As well as being a mediocre food source, it restores 10 health.
  
• Antennae Fruit
  -The Antennae Plant grows in the Lilypad Islands; each plant has a single fruit on top.
  -Each fruit gives 20 food, 5 water, and restores 9 health.
  
• Spicy Fruit Salad
  -Spicy fruit salad is by far the best food in the game. It is fabricated with one snow stalker fruit leaf and one heat fruit.
  -When eaten, it restores 85 food, 30 water, and 100 heat. Spicy fruit salads do not go bad over time.

One last interesting feature added in Subnautica Below Zero is the fridge. It is made with glass and titanium using the habitat builder and can be used to store foods that would normally rot (like cooked fish) indefinitely. Food will begin the rotting cycle immediately once removed from the fridge.

The cold and weather is one of the only brand new game mechanics that are different from the original Subnautica. Here is a short section explaining the ins and outs of this game mechanic.

Your temperature meter is alongside your food, water, and health meters, and switches places with the oxygen meter when you are out of the water. Once your temperature goes down to zero, you will get frostbite and start dying. Like oxygen loss, you will not die immediately but instead soon after your cold meter gets to zero.

A few factors make your temperature go up or down. Just like in real life, exercise increases your body temperature (i.e. you won't get cold as fast while you're moving). Also, exposure to the air cools you down, so staying underwater is always safer in terms of temperature.

Natural heat sources, such as thermal vents, lava geysers, hot springs, and the purple vents will heat you up. Thermal lilies, found on Delta Island, will also warm you up when you get close to them.

Finally, there are a few different food sources and craftable items which can increase your temperature. The cold suit, which is made from fiber mesh and snow stalker fur, increases your resistance to cold temperatures. Spicy fruit salad, fevered peppers, lantern fruit, and thermoses of coffee all instantly increase your temperature.

All raw materials that do not originate from a plant or animal are listed here. For those, please see the flora and/or fauna sections.

• Copper
  -Found in nearly every biome inside limestone outcrops.
  -Used in nearly every electronic item.
  
• Crystalline Sulfur
  -Found in the Twisty Bridges, Creepvine Forest Caves, Delta Island, and Purple Vents either on the ground (Delta Island) or inside sulfur plants (underwater).
  -Used to create the repair tool and laser cutter.
  
• Diamond
  -Found most easily in the Deep Twisty Bridges, but can also be found in other deep biomes.
  -Used for the laser cutter, enameled glass, and the modification station.
  
• Gold
  -Found in the Twisty Bridges, Creepvine Forest Caves, Tree Spires, and Thermal Spires inside calaverite outcrops.
  -Used a lot.
  
• Kyanite
  -Found only in the Crystal Caves and Fabricator Caverns.
  -Used in some vehicle upgrades.
  
• Lead
  -Found in the Twisty Bridges and Thermal Spires inside galena outcrops.
  -Used in enameled glass and some base parts.
  
• Lithium
  -Found in the Tree Spires and Purple Vents.
  -Used in plasteel as well as many vehicle upgrades.
  
• Magnetite
  -Found mainly in the Deep Lilypad Caves, but also in the Glacial Basin and Arctic Spires.
  -Used in a bunch of upgrades, as well as in the thermal plant.
  
• Nickel
  -Found in the Deep Lilypad Caves, Crystal Caves, and Fabricator Caverns.
  -Used in a few vehicle upgrades.
  
• Quartz
  -Found pretty much everywhere.
  -Used in glass, hatches, lockers, and solar panels.
  
• Ruby
  -Found in the Tree Spires, Deep Lilypad Caves, and Koppa Mining Site.
  -Used in aerogel and a prawn suit depth upgrade.
  
• Salt
  -Found in the Twisty Bridges, Sparse Arctic, and Purple Vents.
  -Used to cure food and make bleach.
  
• Silver
  -Found in a ton of biomes inside argentite outcrops.
  -Used in many electronics and a bunch of other stuff too.
  
• Titanium
  -Found pretty much everywhere inside any outcrop type, or from metal salvage found near Mercury Spacecraft pieces.
  -Used in basically everything.
  
• Uraninite Crystal
  -Found in the Tree Spires and Crystal Caves.
  -Used in reactor rods.

As with the original Subnautica, blueprints can be found either by scanning fragments or opening databoxes. All fragment and databox locations will be listed here in alphabetical order.

Note: If you find a fragment for something that was added into the game that is not on this list, please leave a comment. Some items are left out from this list if their only requirement is to collect a resource which is required to make said item.

• Architect Organs
  -Scan the item at the Crystal Caves Cache.
  
• Architect Skeleton
  -Scan the item at the Arctic Spires Cache.
  
• Architect Tissue
  -Scan the item at the Deep Lilypads Cache.
  
• Aromatherapy Lamp
  -Scan in Omega Lab.
  
• Bar Table
  -Scan at Delta Station or Phi Robotics Center.
  
• Basic Double Bed
  -Scan at Delta Station.
  
• Basic Plant Pot
  -Scan at Delta Station.
  
• Booster Tank
  -Open a databox in the Purple Vents.
  
• Bulkhead
  -Scan at Omega Lab.
  
• Coffee Machine
  -Scan at Delta Station or Phi Robotics Center.
  
• Cold Suit
  -Scan a fragment at Phi Robotics Center.
  
• Command Chair
  -Scan at Delta Station.
  
• Compass
  -Open a databox in the Twisty Bridges or Creepvine Forest, or unlock the Pathfinder Tool.
  
• Control Room
  -Open a databox at Omega Lab or in the Purple Vents.
  
• Exterior Growbed
  -Scan in the Twisty Bridges or the Mercury Spacecraft Bow Section.
  
• Fabricator
  -Scan at Delta Station, Phi Robotics Center, or in the Twisty Bridges.
  
• Fridge
  -Scan at Phi Robotics Center.
  
• Grav Trap
  -Scan 2 fragments at the Twisty Bridges or Creepvine Forest.
  
• Habitat Builder
  -Scan a fragment in the Twisty Bridges or at Delta Station or Koppa Mining Site.
  
• Headlamp
  -Open a databox at the Koppa Mining Site.
  
• High Capacity Oxygen Tank
  -Open a databox in the Twisty Bridges.
  
• Hydraulic Fluid
  -Scan a fragment at the Glacial Basin Bay Bridge.
  
• Indoor Growbed
  -Scan at Phi Robotics Center.
  
• Ion Battery and Ion Power Cell
  -Scan six Architect Artifacts.
  
• Jukebox
  -Scan at Delta Station.
  
• Large Room
  -Scan at Phi Robotics Center.
  
• Large Room Glass Dome
  -Scan at Marguerite's Base.
  
• Laser Cutter
  Scan 3 fragments in the Twisty Bridges, in Sea Monkey Nests, or at Phi Robotics Center.
  
• Locker
  -Scan at Delta Station or Phi Robotics Center.
  
• Mineral Detector
  -Scan a fragment at Delta Island or the Twisty Bridges.
  
• Mobile Vehicle Bay
  -Scan 3 fragments at the Twisty Bridges or Creepvine Forest Caves.
  
• Modification Station
  -Scan at Delta Station.
  
• Moonpool
  -Scan at Marguerite's Base.
  
• Multipurpose Room
  -Scan at Delta Station.
  
• Multipurpose Room Glass Dome
  -Scan at Omega Lab.
  
• Nuclear Reactor
  -Scan at Omega Lab or the Mercury Spacecraft Bow Section.
  
• Observatory
  -Scan at Delta Station.
  
• Parallel Processing Unit
  -Scan 3 fragments found at each of the Mercury Spacecraft Sections.
  
• Pathfinder Tool
  -Scan a fragment in the Creepvine Forest or Glacial Basin.
  
• Power Cell Charger
  -Scan at Phi Robotics Center or Omega Lab.
  
• Prawn Suit
  -Scan 4 fragments at Koppa Mining Site or Phi Excavation Site.
  
• Prawn Suit Drill Arm
  -Scan 2 fragments at Koppa Mining Site.
  
• Prawn Suit Grapple Arm
  -Scan 2 fragments in Lilypad Islands sea monkey nests.
  
• Prawn Suit Jump Jet
  -Pick up item at Koppa Mining Site.
  
• Prawn Suit Propulsion Cannon and Torpedo Arm
  -Scan 2 fragments in the Crystal Caverns.
  
• Propulsion Cannon
  -Scan 2 fragments in Sea Monkey Nests.
  
• Quantum Locker
  -Scan 2 Architect Artifacts.
  
• Rebreather
  -Open a databox in the Twisty Bridges.
  
• Recyclotron
  -Scan 4 Architect Artifacts.
  
• Reinforced Dive Suit
  -Scan a fragment in the Purple Vents in the Mercury Spacecraft Bow Section.
  
• Repulsion Cannon
  -Scan 2 fragments in Sea Monkey Nests.
  
• Scanner Room
  -Open a databox at Delta Station or Koppa Mining Site.
  
• Seatruck
  -Scan 3 fragments in the Twisty Bridges or Thermal Spires.
  
• Seatruck Afterburner
  -Scan 2 fragments in Sea Monkey Nests.
  
• Seatruck Aquarium Module
  -Scan 3 fragments in the Purple Vents or Lilypad Islands.
  
• Seatruck Docking Module
  -Scan 3 fragments in the Purple Vents.
  
• Seatruck Fabricator Module
  -Scan 3 fragments in the Deep Twisty Bridges or Purple Vents.
  
• Seatruck Horsepower Upgrade
  -Scan 2 fragments in Sea Monkey Nests.
  
• Seatruck Perimeter Defense
  -Pick up item from Marguerite's Base.
  
• Seatruck Sleeper Module
  -Scan 3 fragments in the Purple Vents.
  
• Seatruck Storage Module
  -Scan 3 fragments in the Deep Twisty Bridges.
  
• Seatruck Teleportation Module
  -Scan 10 Architect Artifacts.
  
• Shower, Sink, and Toilet
  -Scan at Marguerite's Base.
  
• Snowfox
  -Scan 3 fragments in the Glacial Basin or Phi Robotics Center.
  
• Snowfox Hop Module
  -Open a databox in the Glacial Basin.
  
• Snowfox Hoverpad
  -Scan at Phi Robotics Center.
  
• Snowfox Ice Worm Attack Reduction Module
  -Open a databox in the Arctic Spires.
  
• Spicy Fruit Salad
  -Scan a Snow Stalker Fruit Plant.
  
• Spy Pengling
  -Scan a fragment at the Glacial Basin or Marguerite's Base.
  
• Test Override Module
  -Scan a fragment at Marguerite's Base.
  
• Tether Tool
  -Scan 10 Architect Artifacts.
  
• Thermal Plant
  -Scan 2 fragment in the Tree Spires or at Koppa Mining Site.
  
• Thermos
  -Pick up item at Phi Robotics Center or unlock the Coffee Machine.
  
• Thumper
  -Open a databox in the Arctic Spires.
  
• Ultra High Capacity Oxygen Tank
  -Scan 3 fragments in Sea Monkey's Nests.
  
• Vehicle Upgrade Console
  -Open a databox at Koppa Mining Site or unlock the Moonpool.
  
• Wall Locker
  -Scan in the Twisty Bridges.
  
• Water Filtration Machine
  -Scan at Omega Lab or the Mercury Spacecraft Bow Section.
  
• Water Filtration Tablets
  -Acquire the item at Phi Robotics Center or Phi Excavation Site.
  
• Window
  -Scan in the Twisty Bridges.

The Seatruck is Subnautica Below Zero's smaller equivalent to Subnautica's Cyclops. Like the cyclops, the seatruck can be used as a mobile base. Unlike the cyclops, the seatruck is modular. This means that each thing you want to put on the seatruck (a fabricator, storage room, prawn suit docking area, etc.) has to be unlocked, built, and added separately.

Less modules means a faster, smaller, and more maneuverable vehicle, but less utility. Below is a rundown of each module, what they do, and how important they are.

• Aquarium Module
  -Picks up fish from the surrounding water as you drive the seatruck.
  -Has one aquarium on each side. This is a good source for passively getting fish for food.
  -One of the only ways to safely capture Symbiote fish.
  
• Docking Module
  -Must be the last module on the seatruck.
  -Can dock a prawn suit to it; similar to the docking bay from Subnautica's Cyclops.
  
• Fabricator Module
  -Has a special fabricator and a storage spot which can hold 12 items inside.
  -The fabricator inside this module can craft seatruck upgrades as well as standard items.
  
• Sleeper Module
  -This module comes with a bed, a jukebox, and a picture frame. That's it.
  
• Cargo Module
  -Contains 5 separate lockers, adding up to a storage space of 52 slots.
  
• Teleportation Module
  -A special module which must be used alongside a Tether Tool.
  -Using a Tether Tool teleports you back into your seatruck teleportation module, no matter how far away you are.
  -The Tether Tool is powered with ion cubes, taking one cube for every three teleports.

When I play, I usually use a fabricator module always, then I choose which other modules to add depending what I'm doing. If I'm collecting resources, I take a cargo module; and if I'm going exploring (especially in dangerous areas) I take a docking module and a teleportation module.

Because much more time is spent on land in Below Zero than in the original Subnautica, we now have a land-only vehicle: the Snowfox hoverbike!

The snowfox is built and customized on the snowfox hoverpad. It hovers over the ground, and will not work in the water. It is deployable, meaning that it can be packed into your inventory; it takes up 9 inventory slots.

You can press your sprint key to give your snowfox a short speed boost. While moving on the snowfox is faster than walking, it isn't faster than ice worms, leaving you vulnerable, though less so, in the Arctic Spires.

The snowfox has one upgrade slot and two available upgrades. First, the Snowfox Jump Module allows the snowfox to make small hops over normally slow or impassable terrain. Second, the Snowfox Ice Worm Attack Reduction Module reduces the amount of ice worm attacks by magical methods currently unknown.