Subnautica OST

In Subnautica, there are many sounds, soundtracks and sound effects that are present. Most sounds have not been released as a file to the public, yet. A Full Subnautica Soundtrack is planned to be released at V1.0 as stated here. All Sounds were and are created by Simon Chylinski.

In Game Music
The Subnautica Soundtrack was available through the Subnautica Special Edition, which included other exclusives such as the Special Hull Plate Upgrade and some early prototypes. It is assumed to be available on Steam later.

The tracks were provided as MP3 and in lossless quality as FLAC and WAV.

YouTube=

Tracks available on the official Subnautica Youtube Channel:

Tracklist: Playlist

7. Precipice
 * 1) Into the Unknown
 * 2) Ahead Slow
 * 3) Finding Life
 * 4) First Immersion
 * 5) In Bloom
 * 6) Maneuvers
 * Featured as the soundtrack to the Power Nap Update.
 * Featured as the soundtrack to the Bases Update.

Subnautica Soundcloud=

Tracks available on the official Subnautica SoundCloud Channel:

Tracklist: Playlist

1. Habitat 2. Crash Site 3. Alterra Science 4. Seamoth 5. Arc Lights 6. Sun & Moons 7. Abandon Ship 8. Exosuit 9. Ghosts 10. Sunbeam 11. Docking (An extended soundtrack from another game: Natural Selection 2) 12. Infected
 * Featured as the soundtrack to the Habitat Update.
 * Featured as the soundtrack to the Crash site Update.
 * Featured as the soundtrack to the Alterra Science Update.
 * Featured as the soundtrack to the Seamoth Update.
 * Featured as the soundtrack to the Shocking Update.
 * Featured as the soundtrack to the H2.0 Update.
 * Featured as the soundtrack to the Subnautica Gameplay Trailer.
 * Featured as the soundtrack to the PRAWN Update.
 * Featured as the soundtrack to the Bones Updaate.
 * Featured as the soundtrack to the Precursor Update.
 * Featured as the soundtrack to the Castles & Coffee Update
 * Featured as the soundtrack to the Infected Update

Sy1k1 Soundcloud=

Tracks available on the Sy1K1 Channel (Simon, the Developer of Subnautica's Music and Sounds):

Tracklist:
 * 1) Subnautica 01
 * 2) Subnatica soundtrack 02 Water -Spooky
 * 3) Subnatica soundtrack 03 - Creepy (Ahead Slow)
 * 4) Higher Levels
 * 5) Hangs
 * 6) Under The Ice
 * 7) Precipice
 * 8) Water Music Melody6
 * 9) Explore Wreckage
 * 10) Nightime Spoooks
 * 11) Alterra Science (Glitchything)
 * 12) Observatory Zen
 * 13) Blood Kelp Music
 * 14) Sparse Reef
 * 15) Reef
 * 16) Ultra Ambient River Music
 * 17) Sinisterish
 * 18) Nice Light
 * 19) A currently unused soundtrack (with main menu music)
 * 20) Nice Light Spook
 * Featured as the soundtrack to the Get Wrecked: Explorable Wreckage Update.

Creature Sounds
Also on Subnautica and Sy1k1's soundcloud channels, are various demos and indevelopment sounds for creatures.

Sy1k1's Channel= Tracklist:


 * 1) Biter Demo
 * 2) Crabsnake Sounds
 * 3) Blood Biter
 * 4) Close Medium Far Megafar (Sea Treader and Boneshark)
 * 5) Crabsquid
 * 6) Seadragon
 * 7) Warper
 * 8) Ghost Ray Demo
 * 9) Spine Eel Demo
 * 10) Ghost Leviathan



Subnautica's Channel= Tracklist:


 * 1) Birds

Other Sounds
On these same two channels, other sounds for features and items are present.

Subnautica's Channel=

Tracklist:


 * 1) Torpedo Firing
 * 2) Electromagnetic Pulse



Sy1k1's Channel= Tracklist:


 * 1) Boooom (The Aurora exploding)
 * 2) Scanner Demo
 * 3) Mezmer Trip (When you encounter a Mesmer)
 * 4) Super Secret Subnautica SFX (Plays when you activate the terminal to disable the Quarantine Enforcement Platform)
 * 5) Subnautica A-B Voices (Before and after the voices were altered)

Soundscapes
The soundscapes were the original and intended audio tracks that were made as demo concepts for the soundtrack of a certain Biome, area, or vehicle.

Subnautica's Channel=

Tracklist:


 * 1) Mech Interior Concept
 * 2) Coral Reef Nighttime Concept
 * 3) Crashed Ship With Creatures
 * 4) Coral Reef Concept
 * 5) Submarine Interior Concept



Sy1k1's Channel= Tracklist:


 * 1) Base Demo With Zen Room
 * 2) Subnautica Environment Sounds