Subnautica

7Full Release

What this is

An alien-ocean survival sandbox where deeper expeditions hinge on oxygen, preparation, and discovery.

What you actually do

You gather resources, scan discoveries, craft equipment, build a base, and pilot vehicles to reach deeper areas. Oxygen, supplies, navigation, and hostile wildlife keep every expedition tense, while new blueprints and upgrades expand your options.

Verdict

Exploration Under Survival Pressure

Subnautica makes oxygen, hostile wildlife, crafting, and deeper expeditions work together to turn curiosity into tense discovery. Its loose guidance and recurring resource trips can wear down players who prefer a direct route.

User reviews first

Steam recent first

Is it for you?

What shines

Beautiful underwater environments
Compelling exploration and discovery
Atmospheric sound design
Flexible base building
Customizable, varied vehicles
Rewarding equipment progression

What to know

Weak guidance and no map
Frequent backtracking for resources
Limited inventory space
Occasional crashes and freezes
Vehicle clipping can lose progress
Blueprint hunting can require wikis

Quick facts

Genre

Open World Survival CraftHorror

View

First + VR

Solo

Co-op

PvP

Length

30h

Entry

Can start here

Pricing

Paid

MTX

Account required

Active Support

Crossplay

+Best if

You want each dive to turn new discoveries into better gear, deeper access, and a more capable underwater home.

!Skip it if

You need clear navigation and tightly signposted objectives, because finding the next step can require retracing areas or outside help.

Developer

Unknown Worlds

Publisher

Unknown Worlds Entertainment

Release

Jan 23, 2018

Game DNA

Rhythm

Mixed pace

Depth

Some depth

Mood

AtmosphericScaryImmersive

Look & sound

Voxel

Also tagged

UnderwaterExplorationCrafting

topic

Your role and how it develops

Your role

You are a stranded survivor responsible for gathering materials, managing expeditions, building a habitat, and using crafted tools and vehicles to reach more dangerous depths.

Learning and mastery

The basic tools are approachable, but progression depends on observation, experimentation, and finding your own direction.

Replay and variation

The strongest pull is a first discovery-focused run, with continued appeal for players who enjoy building, collecting, scanning, and revisiting the ocean.

Systems you interact with

What you actually engage with

Underwater exploration

Survey distinct aquatic environments and search for resources, clues, and new discoveries.

Survival management

Balance oxygen, supplies, and exposure to danger during each expedition.

Crafting

Convert gathered materials into equipment, upgrades, and useful tools.

Base building

Construct and expand an underwater habitat for storage, planning, and recovery.

Vehicle operation

Pilot submersibles that extend reach and support deeper exploration.

Wildlife encounters

Read and avoid dangerous creatures while navigating the ocean.

topic

Time investment

How long it takes

HowLongToBeat

Main story

focused run

30h

Main + extras

story and side content

42h

Completionist

full clear

52h

Session fit

What the time commitment feels like

When it clicks

Expect an exploratory opening that teaches survival through gathering, crafting, and short expeditions.

Session constraints

Progress can slow when you need to revisit familiar areas, search for materials, or work out where to go next.

Best session rhythm

It works best in focused dives followed by time spent sorting resources, improving equipment, and expanding your base.

DLC timing

Additional content is best considered after the main exploration loop has established whether the survival structure suits you.

topic

Review interpretation

Current mood

Immersed, curious, and nervously thrilled by the deep.

Why it works

Exploration, discovery, base building, crafting, and an atmospheric underwater world create a highly immersive survival adventure.

Critic gap

Players are more consistently enthusiastic than critics, while both groups value the atmosphere and exploration. Critics more clearly flag technical issues and occasional design shortcomings.

What players value

Exploration and discovery

high

Players enjoy uncovering biomes, wrecks, creatures, story details, and hidden corners of the ocean.

Base building and crafting

high

Building habitats and underwater megabases, collecting resources, and crafting tools are major sources of long-term engagement.

Atmosphere and immersion

high

The beautiful world, soundscape, isolation, and shifting sense of wonder and danger make the setting especially absorbing.

Evidence-backed risks

Unclear progression and navigation

mediumreviews

Some players find the lack of direction, maps, and clear clues frustrating, sometimes relying on outside guidance to progress.

Technical bugs and performance issues

mediumreviews and critics

Some players report crashes, hangs, interface glitches, lost equipment or save-related problems, while critics also note bugs and performance shortcomings.

Repetitive resource gathering

lowreviews

Some players lose interest when progression requires repeatedly revisiting areas to gather materials, especially later on.

topic

Minimum PC

Playable baseline

CPUIntel Haswell 2 cores / 4 threads @ 2.5Ghz or equivalent

RAM4 GB RAM

GPUIntel HD 4600 or equivalent - This includes most GPUs scoring greater than 950 points in the 3DMark Fire Strike benchmark

Recommended PC

Better target

CPUIntel Haswell 4 cores / 4 threads @ 3.2Ghz or equivalent

RAM8 GB RAM

GPUNvidia GTX 550 Ti or equivalent, 2GB VRAM

Storage and usability

Disk, language and input

Install7 GB

Download3 GB

Free space20 GB

Languages27 listed

ControllerFull

topic

Support status

Developer activity

Events, not updates

Last game updateOct 3, 2025 · 10 months ago

Last official postApr 1, 2026 · 4 months ago

Updates (12 mo)2

Posts (12 mo)3

CadenceSteady

SourceSteam

Official Steam news

Subnautica

Exploration Under Survival Pressure

Is it for you?

What shines

What to know

What you actually engage with

How long it takes

What the time commitment feels like

Current mood

Why it works

Critic gap

Exploration and discovery

Base building and crafting

Atmosphere and immersion

Unclear progression and navigation

Technical bugs and performance issues

Repetitive resource gathering

Playable baseline

Better target

Disk, language and input

Developer activity

Latest from the developer

Deal layer comes later