A sandbox survival/horror game developed by Unknown Worlds Entertainment. Subnautica is unique in that the alien world it is set upon is an ocean planet, so the game takes place almost entirely underwater. The player must collect fish for food, scrap and minerals to build tools, vehicles, and habitats, while avoiding hungry wildlife, in order to cure the Kharrar disease and escape Planet 4546B.

A critical part of this experience is that the player character has only a survival knife to use as a weapon, robbing him of the ability to fight back against the aforementioned hungry wildlife. Subnautica wouldn't be as cool and scary as it is without this feature.
If you're not good with horror games and want to play through Subnautica, be sure to have an extra change of pants ready.
by sebacostamr June 29, 2019
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Subnautica is an open world survival game in development by Unknown Worlds Entertainment. Subnautica allows the player to explore an aquatic alien planet by scuba diving and traveling in submersibles, while collecting resources and food to survive.
Subnautica Is a really fun video game
by Game mode 0 September 13, 2016
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THE LITERAL HELLSPAWN OF FEAR IF YOU HAVE MEGALOPHOBIA, THALASSOPHOBIA,

SUBMECHANOPHOBIA, SUBMECHANOPHOBIA AND SO MUCH MORE.

For real though, it's a pretty fun game honestly, if you disregard the phobia parts, you can do a lot of stuff and it's pretty interesting in general. I'm not really going to spoil anything, but it's a sandbox, horror, survival action-adventure game. You're pretty much trapped in the ocean with sea creatures. As I said, I can't really say much as I'm not the type if person to spoil stuff, so yeah.
Person playing Subnautica; "Okay, and to get this—"

Sea Dragon Leviathan; WASSUP FUCKER—!

Person playing Subnautica; "AAAAAAAAAAAAHOLY FUCKING SHIT— HOW THE FUCK DID YOU GET HERE AND HOW ARE YOU SO TERRIFYING—"
by lycxnwolf February 26, 2021
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A video game that is meant to be about exploring the huge landscape but actually being a horror game, made by unknown worlds entertainment
Subnautica is a horror game

I am scared of exploring in Subnautica

*Roar*

WAIT WHAT THE HECK WAS THAT
by I am me and not u December 8, 2020
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A very broken, but fun game if it works. Usually, it has problems with terrain loading, freezing, saving game, etc. But again, very fun if it works. (not to mention scary)
guy 1: "This is the 14th time subnautica has broken dude."
guy 2: "Why not just uninstall the game?"
guy 1: "Because it's to fun when it works."
by Better Bazinga Man December 3, 2019
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A Geeky youtube channel with no subscribers even though their name starts with 'sub'
John "have you seen Subnautica bros new vid?"
Declan "woah do you seriously watch them?!"
by 1234573559474 August 1, 2017
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subnautica bros are a youtube channel that love a game called subnautica and upload update videos and letaplays.
subnautica bros is an amazing youtube channel
by SubnauticaGod August 1, 2017
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