Subnautica Review and Why Its Deep Ocean Still Grips You

Plenty of survival games ask you to gather wood, build a base and fight off the night. Very few make you afraid of the water under your own feet, and that is why this Subnautica review starts with a warning: if deep, dark open spaces bother you, this game will find that nerve and press on it. If you can push through, it is one of the best exploration games ever made.

I played it start to finish on PC across about 38 hours, then replayed the opening ten hours on a console to check how it holds up with a controller. Here is what works, what still drags, and who should play it now.

What Subnautica is about

You crash-land on an ocean planet in a small escape pod. Your ship, the Aurora, is burning on the horizon. Your job at first is simple: find water, find food and do not drown. Within an hour, the job grows into something bigger: figuring out what happened to this planet, why no rescue is coming, and how to leave.

There are no levels and almost no waypoints. The story is told through radio messages, data logs and what you find on the sea floor. That approach will feel familiar if you loved the curiosity-driven design of Outer Wilds, though Subnautica pairs it with a full survival and crafting loop.

The Subnautica review verdict on exploration

The ocean is the star. The starting area, the Safe Shallows, is bright, full of coral and small harmless fish, and sits at around 0 to 50 metres deep. Every direction away from it gets darker and stranger. Kelp forests at 50 to 100 metres. Grassy plateaus. Then sudden drops into trenches 300 metres deep where your torch barely reaches the walls.

The design trick is that depth is the progression system. You cannot go deeper until you build better gear: a rebreather, bigger oxygen tanks, a small submarine called the Seamoth, then the larger Cyclops. Each upgrade opens a new layer of the map. By the end, you are diving past 1,000 metres, and the first time you reach that depth, it feels earned in a way few open-world games manage. It shares that patient, map-in-your-head reward with Hollow Knight and its patient exploration.

Sound design does half the work. Creature calls echo from far off before you see anything. Your oxygen warning sounds like a heartbeat. I turned on headphones in the second session and did not go back.

Survival and crafting: where it drags

Subnautica's survival loop is simpler than most of its rivals. Food and water drain slowly, and by the midgame a small base with a water filter and a planter makes both almost irrelevant. That is a good thing. The game wants you exploring, not managing meters.

Crafting is where patience gets tested. Many key items need specific materials found only in one or two biomes, and the game rarely tells you where. I spent about two hours in the middle of my run hunting for lithium and magnetite, swimming the same routes and checking a wiki twice. Players who enjoy grinding for parts will not mind. Others will feel the pace sag right when the story should be speeding up.

Base building is excellent, though. You can build glass corridors on the sea floor, a moon pool to dock your sub, and large observation rooms that let you watch fish drift past at night. It is one of the few survival games where I built things because I wanted to live in them.

Is Subnautica too scary? A counter-take

Most reviews describe Subnautica as a horror game. That label scares off players who would enjoy it, and it sets up the wrong expectations for those who go in looking for jump scares.

It is not really a horror game. There are maybe four or five dangerous creature types you will meet regularly, and once you learn where they live, you can avoid most of them. The fear comes from the unknown, not from the game chasing you. Most of your time is spent in calm, beautiful water. If you can handle a nature documentary about the deep sea, you can probably handle Subnautica.

What the horror label misses is that the tension is the point. The game makes you afraid of the dark, then hands you the tools to light it up. That curve, from fear to confidence, is the whole emotional arc, and it would not work if the water felt safe from the start.

If you truly struggle, the game has a Creative mode with no survival needs and a Freedom mode with no hunger or thirst. Neither removes the creatures, but both lower the pressure. My advice for nervous players is simpler: build the Seamoth early, keep a spare oxygen tank and a few flares, and explore new biomes in daylight first. The game changes noticeably once you stop worrying about drowning, and the creatures become part of the scenery rather than the threat they first appear to be.

Performance and platforms today

On a mid-range PC with 16 GB of RAM and a GPU from the last five years, the game runs smoothly at high settings. Older consoles show pop-in when you move fast in the Seamoth, with terrain loading in a second late. On current consoles, that is mostly gone. Controller support is good, though the radial crafting menus are slightly quicker with a mouse.

The base game usually sells for around 30 dollars and drops below 15 in seasonal sales. The standalone follow-up, Below Zero, is shorter and colder, and worth playing second, not first.

Who should play Subnautica

It is a single-player game, so co-op fans looking for a shared survival run should look elsewhere. For players who enjoyed the lonely, uneasy water of our Dredge review, Subnautica is the bigger, deeper version of that feeling.

Frequently asked questions

Is Subnautica worth playing today?

Yes. It still has one of the best open ocean worlds in gaming and runs well on current hardware. The crafting can drag in the middle, but the exploration and sense of progress through depth hold up very well.

How long does it take to beat Subnautica?

Most players finish the main story in 30 to 40 hours. If you want to build large bases and see every biome, expect 50 to 60 hours or more.

Is Subnautica a horror game?

Not in the usual sense. There are dangerous creatures and dark areas that create real tension, but most of the game is calm exploration. Fear of the deep is part of the design, and it fades as your gear improves.