Subnautica: Below Zero

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App ID	848450
App Type	Game
Developer	Unknown Worlds Entertainment
Publisher	Unknown Worlds Entertainment
Franchise	Subnautica, KRAFTON, Inc.
Supported Systems	Windows macOS
Technologies	Unity Engine
Last Changenumber	31473438
Last Record Update	3 October 2025 – 23:17:39 UTC ()
Release Date	14 May 2021 – 04:08:10 UTC ()

😎 89.11%

99k reviews

883

In-Game

Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.

Additional Information

Developer

Unknown Worlds Entertainment

metacritic_name

Subnautica Below Zero

controller_support

full

community_visible_stats

Yes

ReleaseState

released

Publisher

Unknown Worlds Entertainment

Store Release Date

14 May 2021 – 04:08:00 UTC ()

osarch

community_hub_visible

Yes

vrheadsetstreaming

Yes

Social Media

https://discord.gg/subnautica
https://www.facebook.com/subnautica/
https://twitch.tv/subnautica
https://x.com/Subnautica
https://www.youtube.com/subnautica/

Primary Genre

Adventure (25)

Store Genres

Adventure (25), Indie (23)

Steam Release Date

14 May 2021 – 04:08:10 UTC ()

Store Asset Modification Time

8 July 2025 – 03:21:52 UTC () (1751944912)

library_assets

library_capsule	en
library_hero	en
library_logo	en
logo_position ↴
pinned_position	CenterCenter
width_pct	38.95348837209298
height_pct	39.52196627879363

osextended

macos64

name_localized

koreana	서브노티카: 빌로우 제로
japanese	サブノーティカ：ビロウゼロ
schinese	深海迷航：冰点之下
tchinese	深海迷航 : 氷點之下

review_score

review_percentage

Detected Technologies (?)

Unity Engine, Autodesk_FBX SDK, FMOD SDK, Game_Development_Kit SDK, Sentry SDK, SteamworksNET SDK, UnityBurst SDK

Steam Deck Compatibility

Steam Deck:
All functionality is accessible when using the default controller configuration
This game shows Steam Deck controller icons
In-game interface text is legible on Steam Deck
This game's default graphics configuration performs well on Steam Deck
Note: This game does not default to external Bluetooth/USB controllers on Deck, and may require manually switching the active controller via the Quick Access Menu
SteamOS:
This game runs successfully on SteamOS
Note: This game does not default to external Bluetooth/USB controllers on SteamOS, and may require manually switching the active controller via the Quick Access Menu
category: Verified
steamos_compatibility: Compatible
test_timestamp: 12 August 2025 – 00:00:00 UTC
tested_build_id: 18630105

configuration:

supported_input	gamepad
requires_manual_keyboard_invoke	0
requires_non_controller_launcher_nav	0
primary_player_is_controller_slot_0	1
non_deck_display_glyphs	0
small_text	0
requires_internet_for_setup	0
requires_internet_for_singleplayer	0
recommended_runtime	proton-9.0-4RC
requires_h264	0
requires_voice_files	0
gamescope_frame_limiter_not_supported	0
hdr_support	0

controllertagwizard

Yes

Early Access Release Date

30 January 2019 – 00:00:00 UTC ()

First seen on SteamDB

16 April 2018 – 14:21:36 UTC (), in changelist #4316457

Supported Languages

23 Languages	Interface	Full Audio	Subtitles	Achievements
English	Yes	Yes	Yes	Yes
French	Yes		Yes	Yes
Italian	Yes		Yes	Yes
German	Yes		Yes	Yes
Spanish - Spain	Yes		Yes	Yes
Japanese	Yes		Yes	Yes
Korean	Yes		Yes	Yes
Portuguese - Brazil	Yes		Yes	Yes
Spanish - Latin America	Yes		Yes	Yes
Russian	Yes		Yes	Yes
Simplified Chinese	Yes		Yes	Yes
Turkish	Yes		Yes	Yes
Ukrainian	Yes		Yes	Yes
Czech	Yes		Yes	Yes
Finnish	Yes		Yes	Yes
Hungarian	Yes		Yes	Yes
Polish	Yes		Yes	Yes
Traditional Chinese	Yes		Yes
Slovak	Yes		Yes
Portuguese - Portugal				Yes
Danish				Yes
Dutch				Yes
Greek				Yes

Hardware Categories

Full Controller Support

DualShock Controllers (USB Only)

Assets

Load all asset images

clienticon

c5fdeeb5223aa0e3641880fb36d441efe64bd238

clienttga

feacde9fef08302b2213c153a6e77426215f62a2

icon

eae16718327a78d87ac7ae61db96729926c97a16

logo

b300892d3baea03721b90f611cb3b7ef94214e69

logo_small

b300892d3baea03721b90f611cb3b7ef94214e69_thumb

clienticns

de5e329945e31ccc5703ea6d665f5400ce0d2b88

small_capsule

english

capsule_231x87.jpg

header_image

english

header.jpg

library_assets_full

library_capsule ↴
image/english	library_600x900.jpg
image2x/english	library_600x900_2x.jpg
library_hero ↴
image/english	library_hero.jpg
image2x/english	library_hero_2x.jpg
library_logo ↴
logo_position/pinned_position	CenterCenter
logo_position/width_pct	38.95348837209298
logo_position/height_pct	39.52196627879363
image/english	logo.png

Assets

main_capsule	capsule_616x353.jpg
small_capsule	capsule_231x87.jpg
header	header.jpg
page_background	page_bg_generated_v6b.jpg
hero_capsule	hero_capsule.jpg
library_capsule	library_600x900.jpg
library_capsule_2x	library_600x900_2x.jpg
library_hero	library_hero.jpg
library_hero_2x	library_hero_2x.jpg
community_icon	eae16718327a78d87ac7ae61db96729926c97a16.jpg
page_background_path	app/848450
raw_page_background	page_bg_raw.jpg
timestamp	8 July 2025 – 03:22:07 UTC

Trailers

361258 ↴
trailer_name	Trailer
trailer_category	0
trailer_480p/video/webm	256830049/movie480_vp9.webm
trailer_480p/video/mp4	256830049/movie480.mp4
trailer_max/video/webm	256830049/movie_max_vp9.webm
trailer_max/video/mp4	256830049/movie_max.mp4
microtrailer/video/webm	848450/361258/82151770fcaf7d6667a364a76c0f16b836513514/1750588821/microtrailer.webm
microtrailer/video/mp4	848450/361258/82151770fcaf7d6667a364a76c0f16b836513514/1750588821/microtrailer.mp4
adaptive_trailers/0/cdn_path	848450/361258/82151770fcaf7d6667a364a76c0f16b836513514/1750588821/dash_av1.mpd
adaptive_trailers/0/encoding	dash_av1
adaptive_trailers/1/cdn_path	848450/361258/82151770fcaf7d6667a364a76c0f16b836513514/1750588821/dash_h264.mpd
adaptive_trailers/1/encoding	dash_h264
adaptive_trailers/2/cdn_path	848450/361258/82151770fcaf7d6667a364a76c0f16b836513514/1750588821/hls_264_master.m3u8
adaptive_trailers/2/encoding	hls_h264
screenshot_medium	256830049/movie.293x165.jpg
screenshot_full	256830049/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	1618322274
370296 ↴
trailer_name	Gameplay Trailer
trailer_category	0
trailer_480p/video/webm	256835066/movie480_vp9.webm
trailer_480p/video/mp4	256835066/movie480.mp4
trailer_max/video/webm	256835066/movie_max_vp9.webm
trailer_max/video/mp4	256835066/movie_max.mp4
microtrailer/video/webm	848450/370296/72e48280c02527eabc26268a9546ac5a79a9d7f5/1750588828/microtrailer.webm
microtrailer/video/mp4	848450/370296/72e48280c02527eabc26268a9546ac5a79a9d7f5/1750588828/microtrailer.mp4
adaptive_trailers/0/cdn_path	848450/370296/72e48280c02527eabc26268a9546ac5a79a9d7f5/1750588828/dash_av1.mpd
adaptive_trailers/0/encoding	dash_av1
adaptive_trailers/1/cdn_path	848450/370296/72e48280c02527eabc26268a9546ac5a79a9d7f5/1750588828/dash_h264.mpd
adaptive_trailers/1/encoding	dash_h264
adaptive_trailers/2/cdn_path	848450/370296/72e48280c02527eabc26268a9546ac5a79a9d7f5/1750588828/hls_264_master.m3u8
adaptive_trailers/2/encoding	hls_h264
screenshot_medium	256835066/movie.293x165.jpg
screenshot_full	256835066/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	1621298702
206949 ↴
trailer_name	Early Access
trailer_category	0
trailer_480p/video/webm	256741728/movie480.webm
trailer_480p/video/mp4	256741728/movie480.mp4
trailer_max/video/webm	256741728/movie_max.webm
trailer_max/video/mp4	256741728/movie_max.mp4
microtrailer/video/webm	848450/206949/33d14d469086c6fdfbec5c894eded2bfdb4946fd/1750588821/microtrailer.webm
microtrailer/video/mp4	848450/206949/33d14d469086c6fdfbec5c894eded2bfdb4946fd/1750588821/microtrailer.mp4
adaptive_trailers/0/cdn_path	848450/206949/33d14d469086c6fdfbec5c894eded2bfdb4946fd/1750588821/dash_av1.mpd
adaptive_trailers/0/encoding	dash_av1
adaptive_trailers/1/cdn_path	848450/206949/33d14d469086c6fdfbec5c894eded2bfdb4946fd/1750588821/dash_h264.mpd
adaptive_trailers/1/encoding	dash_h264
adaptive_trailers/2/cdn_path	848450/206949/33d14d469086c6fdfbec5c894eded2bfdb4946fd/1750588821/hls_264_master.m3u8
adaptive_trailers/2/encoding	hls_h264
screenshot_medium	256741728/movie.293x165.jpg
screenshot_full	256741728/movie_full.jpg
all_ages	true
is_highlight	true
timestamp	1548871336

Depots

ID	Configuration	Size	DL.
228985	Windows Shared InstallDepot from 228980VC 2013 Redist	No size
228988	Windows Shared InstallDepot from 228980VC 2019 Redist	No size
848451	UnusedSubnautica Expansion Content	No size
848452	Windows Subnautica Expansion (Windows)	7.90 GiB	4.74 GiB
848453	macOS Subnautica Expansion (OSX)	7.97 GiB	4.75 GiB

Total size on disk is 15.86 GiB and total download size is 9.49 GiB.

Total size on disk is 7.90 GiB and total download size is 4.74 GiB, when filtered to Windows, English, no DLC depots.

Branches

Name	Description	Build ID	Time Updated
public		20245197	3 October 2025 – 21:48:49 UTC
legacy	For maintaining a stable legacy build	9700925	13 October 2022 – 22:08:02 UTC
experimental	Automatic daily updates. Lots of bugs!	20245197	3 October 2025 – 21:49:44 UTC

Other

Name	Value
privatebranches	1

Subnautica: Below Zero

Additional Information

Supported Languages

Tags

Categories

Hardware Categories

Assets

Depots

Branches

Other