Subnautica: Below Zero
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40 free Subnautica: Below Zero trivia questions with answers — trivia quiz, new questions added Oct 2026.
Subnautica: Below Zero trades the tropical reefs of the first game for a polar corner of planet 4546B, where the water is only half the danger. Step onto the ice and the cold starts to bite; dive too deep and something with far too many teeth takes an interest. Every biome has its own look, its own resources and its own way of ending a careless run. This quiz is built around those biomes. Expect questions on where the main regions lie and what marks each one out, from the waters where the journey begins to the caverns at the bottom of the map. Along the way come the creatures that live there, the vehicles and gadgets that open up fresh territory, and the story of two sisters, a stranded alien and a company with something to hide. The opening questions suit anyone who has spent a few hours in the game, while later ones reward players who mapped every cave. Each answer comes with a short explanation, so a wrong guess still leaves you better prepared for the next dive.
30 of 40 questions with answers and explanations. Play the quiz
Q 01Which intelligent creature in Subnautica: Below Zero swims up to divers and steals the tool they are holding?
Sea Monkey
Sea Monkey thieves chirp and wiggle their fingers before they charge, so a diver who puts the tool away in time loses nothing.
Q 02Which modular vehicle in Subnautica: Below Zero tows add-on compartments behind its cab like an undersea train?
Seatruck
Seatruck modules can be dropped at any moment, letting the small cab slip into narrow caves or outrun a predator.
Q 03Which furry, flippered creature of Below Zero waddles in groups on the ice and dives headfirst to hunt fish?
Pengwing
Pengwing beaks open sideways instead of up and down, and the adults stay peaceful unless a diver grabs or harms one of the colony.
Q 04Where does the alien Al-An store its mind when its failing sanctuary runs out of power in Below Zero?
Robin's brain
Robin's brain became the lifeboat after she offered her PDA, which turned out to be no use as storage for a living alien mind.
Q 05In which Below Zero biome does Robin Ayou's Drop Pod land, making it the first area players explore?
Shallow Twisty Bridges
Shallow Twisty Bridges is the starting point, an open reef of colourful coral where the pod can come down in one of three spots.
Q 06What strikes Robin Ayou's shuttle on its approach to planet 4546B, ejecting her Drop Pod in Below Zero?
A meteor
A meteor clips the shuttle and throws the pod clear, and a parachute then lowers it to become Robin's first shelter.
Q 07Which gentle leviathan in Subnautica: Below Zero lets players ride on its back and pet it near the eye?
Glow Whale
Glow Whale skin lights up for a moment wherever it is petted, and the animals cruise slowly in groups, sometimes breaching the surface.
Q 08Which land vehicle in Subnautica: Below Zero cannot work on water and needs an upgrade module to jump?
Snowfox
Snowfox riders build it on a Hoverpad, and if it tumbles into the sea they can simply pick it up and set it down again.
Q 09What did Unknown Worlds first plan Subnautica: Below Zero to be before the project's scope expanded?
A DLC pack
A DLC pack for the 2018 original was the plan, and the finished game was later relabelled from sequel to spin-off once Subnautica 2 was announced.
Q 10Which Subnautica: Below Zero biome is thick with Creepvines, where seal-like Pinnacarids hunt small fish?
Arctic Kelp Forest
Arctic Kelp Forest wildlife is mostly passive, which makes the biome a gentle first stop, and it hides a cave system of its own.
Q 11Which Below Zero biome's seabed is scarred with trenches where great chunks of ground were torn away and lifted?
Lilypad Islands
Lilypad Islands float above those trenches, held up by the giant plants that tore them loose, and a cavern opens beneath the largest floating mass.
Q 12Which Below Zero biome has yellow, perforated plateaus and green pools where Lithium and Salt Deposits collect?
Purple Vents
Purple Vents fumaroles spew a violet material that burns anyone who drifts close, and a Chelicerate circles above the eastern crevice.
Q 13Which Below Zero biome is patrolled by two Chelicerates and supplies the Spiral Plant used for Synthetic Fibers?
Tree Spires
Q 21Which black, red-spotted predator relentlessly hunts divers in the Fabricator Caverns of Below Zero?
Shadow Leviathan
Shadow Leviathan numbers come to just four on the whole map, and the luminous blue mouth on its underside is flanked by seven pairs of clawed limbs.
Q 22Which passive leviathan in Below Zero grows plants inside a huge transparent bell that divers can swim into?
Ventgarden
Ventgarden adults park over hydrothermal chimneys to feed on the nutrient-rich water, then blow the excess out of the top hard enough to lift a swimmer.
Q 23Which large, disc-shaped fish in Below Zero has a gap through its middle that divers use to top up oxygen?
Titan Holefish
Tree Spires takes its name from the giant branching hydrothermal coral that fills it, and its southern floor slopes off into the deep.
Q 14Which deep biome in Subnautica: Below Zero serves as the only entrance to the Fabricator Caverns?
Crystal Caves
Crystal Caves bristle with giant violet growths on floor and ceiling, and the trenches cut into the bottom are rich in Kyanite and Gold.
Q 15Which Below Zero biome holds the Phi Robotics Center and the dig where a frozen leviathan was found?
Glacial Basin
Glacial Basin is the second-largest outdoor area on the map, a rocky bowl walled in by tall icy cliffs and crossed by rivers and waterfalls.
Q 16At which Below Zero biome does Robin Ayou sabotage a Communications Tower to blind Alterra's satellites?
Delta Island
Delta Island is also where Robin first runs into a wary fellow castaway, and its hot springs keep visitors from freezing.
Q 17Which lifeless biome rings the whole map of Subnautica: Below Zero before dropping away into the Water Void?
World Edge
World Edge terrain ends in a sheer drop, and beyond it three Void Chelicerates appear one after another to hunt anyone who strays.
Q 18In which ice-roofed biome of Below Zero is drowning the main threat, as few gaps open to the surface?
Sparse Arctic
Sparse Arctic ice shelves seal off most of the surface, and the sandy seabed beneath them touches seven neighbouring biomes.
Q 19What name is given to the frozen region of planet 4546B where the Subnautica spin-off starring Robin Ayou is set?
Sector Zero
Sector Zero can be glimpsed from orbit in the first game's ending, as the escape rocket circles the planet.
Q 20Which horned leviathan ambushes travellers in the Arctic Spires of Below Zero, drawn to the vibrations they make?
Ice Worm
Ice Worm horns are super-heated, melting a path so the animal can tunnel, and a jet of steam marks where one is moving below.
Titan Holefish share that hollow with Symbiotes, small fish that lay their eggs in its gel and mob anything that comes near their host.
Q 24Which small Below Zero predator spits a supercooled liquid that encases its prey, or a diver, in ice?
Brinewing
Brinewing fins fan out to shed warmth and keep the liquid in its bladder cold, and a frozen diver is left helpless and slowly sinking for several seconds.
Q 25Which Thermal Spires predator in Below Zero was designed for the first Subnautica, scrapped, and later revived?
Rock Puncher
Rock Puncher clubs hammer the seabed to dig out the grubs it eats, and the boulder it tosses aside can be cracked open for metals.
Q 26Which playful pet in Below Zero hatches from rare blue or gold eggs, echoing the first game's Cuddlefish?
Trivalve
Trivalve eggs number only six on the whole map, so hatching one of the three-eyed companions takes some searching.
Q 27What kind of creature is Preston, the tame pet who blocks a doorway inside a survivor's seabase in Below Zero?
Snow Stalker
Snow Stalker adults stand as tall as the biggest polar bears, but Preston is a half-grown one who greets Robin by jumping on her.
Q 28Which hazardous formations hang beneath icebergs in Below Zero and freeze any fish that touch them?
Brinicles
Brinicles keep growing until they shatter, and a knife can break one sooner to free a creature trapped inside.
Q 29Which abandoned Alterra dig in Below Zero is entered through a half-open door 150 metres underwater?
Koppa Mining Site
Koppa Mining Site mixes natural caves with shafts cut by Alterra, and its chambers hold the fragments for the Prawn Suit and its drill arm.
Q 30What is the profession of Robin Ayou, who smuggles herself onto planet 4546B in Subnautica: Below Zero?
Xenologist
Xenologist Robin studies alien life for a living, and she can slip onto the planet only because Alterra has just pulled all its staff out.