Subnautica

Game

Subnautica is an open world survival action-adventure video game developed and published by Unknown Worlds Entertainment. In it, players are free to explore the ocean on an alien planet, known as planet 4546B, after their spaceship, the Aurora, crashes on the planet's surface. Note: NitroxMod version 1.8+ is required

Author: ptero@redbananaofficial.comSource: pterodactyl/game-eggsUpdated: 7/24/2026

Startup Command

SUBNAUTICA_INSTALLATION_PATH=/home/container/subnautica XDG_CONFIG_HOME=/home/container/.config ./nitrox/server --save nitrox_world --data-path /home/container/NitroxData

Docker Images

Label	Image
ghcr.io/ptero-eggs/yolks:dotnet_9	ghcr.io/ptero-eggs/yolks:dotnet_9

Environment Variables

Name	Variable	Default	Rules
Steam App ID The ID corresponding to the game to download.	APPID	264710	required\|numeric\|digits_between:1,6
Steam Username Your Steam account username	STEAM_USERNAME	none	required\|string\|max:64
Steam Password Your Steam account password	STEAM_PASSWORD	none	required\|string\|max:64
Steam Guard Code Your Steam Guard Code	STEAM_GUARDCODE	none	nullable\|string\|max:8
Nitrox Version Which version of Nitrox to install and use. Use the version e.g. 1.8.1.0 or latest for the newest release	NITROX_VERSION	latest	required\|string\|between:3,12
Auto Save Interval Time between auto saves specified in milliseconds. Default is 2 minutes (120000ms).	SAVE_INTERVAL	120000	required\|numeric\|digits_between:6,7
Disable Auto Save Disables Auto Save: False / True	SAVE_DISABLE	False	required\|string\|in:True,False
Save Name The save name for the server.	SAVE_NAME	nitrox_world	alpha_dash\|between:1,100
Server Password Password neccessary for connecting to the Server	SUBNAUTICA_PASSWORD	none	nullable\|string\|between:3,12
Admin Password If specified, players must provide this password to gain access to administrator commands on the server.	SUBNAUTICA_ADMIN_PASSWORD	PleaseChangeMe	required\|string\|between:3,16
Game Mode Subnautica game mode. SURVIVAL = manage food/water/oxygen. FREEDOM = no survival meters. HARDCORE = permadeath survival. CREATIVE = unlimited resources, no damage.	SERVER_MODE	SURVIVAL	required\|string\|in:SURVIVAL,FREEDOM,HARDCORE,CREATIVE
Auto Portforward via UPnP If set to true, the server will try to open port on your router via UPnP	PORTFORWARD_ENABLE	False	required\|string\|in:True,False
Serializer Mode Switch between savegame formats. Possible values: PROTOBUF, JSON	SERIALIZER_MODE	JSON	required\|string\|in:PROTOBUF,JSON
Max Players Maximum number of players that can be connected simultaneously. Nitrox alpha is generally tested up to ~10; higher counts work but stability varies. (200 max)	MAX_CONNECTIONS	10	required\|numeric\|between:1,200
Default Player Permissions Permission level new players are assigned when they first join. NONE = guest (no commands). PLAYER = standard. MODERATOR = can kick. ADMIN = full server control. CONSOLE = reserved for server console.	DEFAULT_PERMISSION	PLAYER	required\|string\|in:NONE,PLAYER,MODERATOR,ADMIN,CONSOLE
Disable In-Game Console Set to True to disable the in-game developer console for connected players. Leave False for normal use.	DISABLE_CONSOLE	False	required\|string\|in:True,False

Features

steam_disk_space