Subnautica

Subnautica
Subnautica	2018
Subnautica: Below Zero	2021

General information

Steam Community Discussions

Availability[edit]

Source	DRM	Notes	Keys	OS
Discord
Epic Games Store		Can be run DRM-free when launched directly from the executable with `-EpicPortal` command line argument.^[3]^[4]
Humble Store
Microsoft Store		Xbox Play Anywhere, Xbox Game Pass for PC
Steam		DRM-free when launched directly from executable. `Steam.exe` must be disabled temporarily to run drm-free (renamed/uninstalled/etc.).

Game data[edit]

Configuration file(s) location[edit]

System	Location
Windows	<path-to-game>\SNAppData\SavedGames\options\options.bin^{[Note 3]}
Microsoft Store
macOS (OS X)	~/Library/Application Support/unity.Unknown Worlds.Subnautica/Subnautica/SavedGames/options/options.bin
Epic Games Launcher	%USERPROFILE%\Appdata\LocalLow\Unknown Worlds\Subnautica\Subnautica\SavedGames\options\options.bin
Steam Play (Linux)	<Steam-folder>/steamapps/compatdata/264710/pfx/^{[Note 4]}

Save game data location[edit]

System	Location
Windows	<path-to-game>\SNAppData\SavedGames^{[Note 3]}
Microsoft Store
macOS (OS X)	~/Library/Application Support/unity.Unknown Worlds.Subnautica/Subnautica/SavedGames
Epic Games Launcher	%USERPROFILE%\Appdata\LocalLow\Unknown Worlds\Subnautica\Subnautica\SavedGames
Steam Play (Linux)	<Steam-folder>/steamapps/compatdata/264710/pfx/^{[Note 4]}

Save game cloud syncing[edit]

System	Native	Notes
Discord
Epic Games Launcher
Steam Cloud
Xbox Cloud

Video[edit]

General settings.

Graphics settings.

Graphics feature	State	Notes
Widescreen resolution
Multi-monitor		To adjust the HUD, use HudConfig.
Ultra-widescreen		To adjust the HUD, use HudConfig.
4K Ultra HD
Field of view (FOV)		Slider from 40° to 90° vertical.
Windowed
Borderless fullscreen windowed		"Fullscreen" is Borderless Windowed with Flip Interval^[5]
Anisotropic filtering (AF)		Tied to a single `Quality` option.
Anti-aliasing (AA)		FXAA or TAA.
Vertical sync (Vsync)
60 FPS and 120+ FPS
High dynamic range display (HDR)

Run in exclusive fullscreen mode[edit]

Use the `-window-mode exclusive` command line argument

Input[edit]

Input settings.

General settings.

Keyboard and mouse	State	Notes
Remapping		Two keys per action.
Mouse acceleration
Mouse sensitivity		In-game slider uses approximate values. Can be changed precisely by amending the options file with a hexadecimal editor.
Mouse input in menus
Mouse Y-axis inversion
Controller
Controller support
Full controller support		Has to be enabled from settings with mouse or keyboard.
Controller remapping		Two buttons per action.
Controller sensitivity
Controller Y-axis inversion

Controller types

XInput-compatible controllers
Xbox button prompts
Impulse Trigger vibration

DualShock 4 controllers		Settings has option for PS4 controller, but this is only for prompts.

Tracked motion controllers

Generic/other controllers
Button prompts

Additional information
Controller hotplugging
Haptic feedback
Simultaneous controller+KB/M		Keyboard and mouse input immidiately stops controller input.

Audio[edit]

Audio feature	State	Notes
Separate volume controls		Master, Music, Voice, and Ambient volume sliders.
Surround sound
Subtitles
Closed captions
Mute on focus lost

Localizations

Language	UI	Audio	Sub	Notes
English
Bulgarian
Simplified Chinese
Czech
Danish
Finnish
French
German
Hungarian
Italian
Japanese
Korean
Norwegian
Polish
Brazilian Portuguese
Russian				1) Fan voice-over by «Mechanics VoiceOver». 2) Fan voice-over by «GamesVoice»
Spanish
Swedish
Turkish
Ukrainian

VR support[edit]

3D modes	Native	Notes
Nvidia 3D Vision		See Helix Mod: Subnautica [DX11].
vorpX		G3D User created game profile, see vorpx forum profile introduction.
Headsets	Native	Notes
HTC Vive
Oculus Rift
OSVR
Windows Mixed Reality
Devices	Native	Notes
Tracked motion controllers
Traditional controller		See Input for details.
Keyboard/Mouse
Play area	Native	Notes
Seated
Standing
Room-scale

VR enhancements[edit]

Enables correct animations, audio and UI when playing in VR.^[6]
Download and install QModManager. Download VR Enhancements and extract `VREnhancements` folder into `<path-to-game>\Subnautica\Qmods\`. Launch game and enter Settings > General and enable VR animations.

Issues unresolved[edit]

Severe Hitching/Framerate Drops When Moving in Seamoth[edit]

Because of the way the game handles loading new objects, moving too fast through the world will lead to severe hitching and framerate drops, even on systems that far exceed the system requirements.^{[citation needed]}

Deleting the save cache and installing on an SSD can help, but this will remain a problem until the developer changes how they handle LOD scaling.^{[citation needed]}

Issues fixed[edit]

Game Launches in VR Mode When VR Isn't Turned On[edit]

Use -vrmode none parameter^{[citation needed]}
Launch the game with the `-vrmode none` parameter.

Game Crashes When Going To Specific Spot Or Hitches When Loading New Areas On Old Save[edit]

Fix save^{[citation needed]}
Go to the save game data location. Open the save slot folder (`Slot000#`). Delete `CellCache` and `CompiledOctreesCache`.

Other information[edit]

API[edit]

Technical specs	Supported	Notes
Direct3D	11
OpenGL	4.4

Executable	32-bit	64-bit	Notes
Windows
macOS (OS X)

CPU affinity[edit]

Improved performance achieved when running 4 cores/threads with Hyperthreading disabled^[7]
Use Task Manager or a program such as Process Lasso to set the CPU affinity to 4 physical cores. Under the details tab in Task Manager right click to 'set affinity'. Set affinity to 0,2,4,6 or the next set of even numbers to select the physical cores on CPU's with Hyperthreading/SMT.

Middleware[edit]

	Middleware	Notes
Audio	FMOD

System requirements[edit]

Windows
	Minimum	Recommended
Operating system (OS)	Vista SP2
Processor (CPU)	Intel Haswell 2 cores / 4 threads @ 2.5 GHz	Intel Haswell 4 cores / 4 threads @ 3.2 GHz
System memory (RAM)	4 GB	8 GB
Hard disk drive (HDD)	20 GB
Video card (GPU)	Intel HD Graphics 4600 DirectX 11 compatible	Nvidia GeForce GTX 550 Ti 2 GB of VRAM

A 64-bit system is required.

macOS (OS X)
	Minimum	Recommended
Operating system (OS)	10.9
Processor (CPU)	Intel Haswell 2 cores / 4 threads @ 2.5 GHz	Intel Haswell 4 cores / 4 threads @ 3.2 GHz
System memory (RAM)	4 GB	8 GB
Hard disk drive (HDD)	20 GB
Video card (GPU)	Intel HD Graphics 4600	Nvidia GeForce GTX 550 Ti 2 GB of VRAM