Subnautica Steam CD Key

9 reviews

Regular price €24,82

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Subnautica is an underwater adventure game set in an open world for you to explore! Dive deep down to the ocean floor...

Dive underwater and feel the wrath of the underwater ecosystem! As you’ve crashed on a world of depths and deeps - you may as well enjoy yourself! Download Subnautica via Royal CD Keys!

Subnautica is an underwater adventure game set in an open world for you to explore! Dive deep down to the ocean floor in your underwater exploration to find out what the game developers from Unknown Worlds Entertainment prepared for you under the sea!

Get Into This Widely Acclaimed Underwater World!

Subnautica was nominated and won many prestigious awards, and during its time, it was a cultural phenomenon that everyone talked about. Streamers, YouTubers, and gamers all around the world were amazed by incredible and treacherous deep-sea trenches, winding cave systems, and drenched shallow coral reefs.

Grab Your Copy at RoyalCDKeys!

Subnautica is now one of the many game keys that you can enjoy with RoyalCDKeys. We provide the best Xbox Play, PlayStation, and PC key on the market! So, get your diving gear, collect resources and hop into this open-world underwater exploration on an alien ocean planet. Remember to check out if they have fresh fish!

Game Information

Release Date

macOS, Windows

January 23, 2018

PS4, Xbox One

December 4, 2018

Switch, PS5, Series X/S

May 14, 2021


Unknown Worlds Entertainment[


Unknown Worlds Entertainment[

Total Rating


Content Rated


Game Modes


Player Perspectives



Action-adventure, survival


Survival, Aliens


macOS, Microsoft Windows, Xbox One, PlayStation 4, Nintendo Switch, PlayStation 5, Xbox Series X/S

Gameplay and Mechanics

Subnautica is a survival game, where you need to, well, fight for survival. Check your gear, put on your PRAWN suit and try to scare off the monsters!

There is much to say about how Subnautica became such a hit game. It was a combination of breathtaking ocean landscapes, a great crafting system, an open world, and many things to do under the sea.

Global games from global developers (like Electronic Arts, Rockstar Games, etc.) can sometimes feel soulless. It’s a natural selection, we know that, but sometimes when you get a great game from an independent developer, it just feels cosier. The community feels that too and is ready to help you out if you need it.

So, let’s check out what Subnautica has to offer!


Find out what happened to this place. Why did you crash here? What are those mysterious buildings? WHO IS BEHIND ALL OF THIS?!

The plot is rather simple – you have been roaming through space, minding your own business, and suddenly crash-landed in the alien ocean world! Seems familiar? Probably not. You need to find a way out, or should we say, craft your way out of this unforgiving environment.

You feel like something’s not right about this planet. And who caused your crash? Maybe it’s the same person who created all those mysterious structures? It’s getting scary out there!

Luckily, you’ve got some things up your sleeve, like incredible futuristic technology and a working brain, so you’ll be fine!

Survival of The Fittest

As the survival games go - this is the best you can get. Craft your way out with many different ways to upgrade your PRAWN suit and fight kaiju’s monsters away!

It’s not easy down there, so keep yourself alive – scavenge, craft, and survive! Explore kelp forests, plateaus reefs, and bioluminescent underwater rivers! Manage your oxygen supply so, you know, you won’t die. 

Unknown Worlds Entertainment has made many things to explore under the sea and even more things to fight off. Those last ones are especially unpleasant, so make sure that your life pod is prepared (it got a bit scruffy after crash landing).

Craft diving gear, lights, and habitat modules. If you want to find rarer resources - you’ll need to venture deeper! Advanced items give you a better chance of survival.

Underwater Base


Your underwater base is your home, so keep it nice and clean! Remember to upgrade it with advanced materials to challenge even crazier enemies!


You can also build bases on the sea floor where you can store your precious resources, park your vehicles, and get back for some oxygen after exploration. You can choose from a myriad of layouts and components. Be sure to share what you’ve done with the community!

Nanosuit Is The Key

Your PRAWN nanosuit is your key to surviving in these unforgiving conditions.. Put it on and upgrade it to make sure you’re safe under the sea!

You can’t go out like this! You’ll need a Pressure Re-Active Waterproof Nanosuit (AKA PRAWN suit – the pun is indeed intended). Not only that, but you can’t go out without it for many other reasons, the main one is – you’ll just die.

You can modify your suit and, well, suit it to your needs with some mining drills, torpedo launchers, propulsion cannons, grappling hooks, and many, many more!

Ocean Full of Life

The world of Subnautica is vast and unforgiving, so make sure you are prepared. Craft, lure monsters out with fish, or just run away to make progress!

Subnautica’s oceans range from vividly colorful to downright creepy and eerie. But wherever you go, you can explore an amazing and beautiful living ecosystem full of life. And there are many ways to go about it! You can lure some insane creatures with fresh fish and then slaughter them to be on the top of the food chain in this sea life, or – you can just run away from predators as they are terrifying.

Predators usually lurk out as the sun goes down, so if you want to explore when it’s dark, bring on your A-game, as these beautiful but horrifying creatures are a real challenge! 

The ocean teems with threats even below the sea bed. In the cave systems below, you can find the creature responsible for it all. Dark, claustrophobic passages will make even the mightiest of the adventurers feel like mere children.

System Requirements:

Minimum System Requirements:

  • Requires a 64-bit processor and operating system
  • OS: Windows Vista SP2 or newer, 64-bit
  • Processor: Intel Haswell 2 cores / 4 threads @ 2.5Ghz or equivalent
  • Memory: 4 GB RAM
  • Graphics: Intel HD 4600 or equivalent - This includes most GPUs scoring greater than 950 points in the 3DMark Fire Strike benchmark
  • DirectX: Version 11
  • Storage: 20 GB available space

System Requirements Recommended:

  • Requires a 64-bit processor and operating system
  • OS: Windows Vista SP2 or newer, 64-bit
  • Processor: Intel Haswell 4 cores / 4 threads @ 3.2Ghz or equivalent
  • Memory: 8 GB RAM
  • Graphics: Nvidia GTX 550 Ti or equivalent, 2GB VRAM
  • DirectX: Version 11
  • Storage: 20 GB available space

Why Prefer RoyalCDKey to Purchase Subnautica?

At RoyalCDKeys, we want gamers to get any Steam CD key, Steam Gift, or codes they want at a fantastic price. Thus, we are working hard to guarantee the best prices, the lowest price among third-party sellers.

Region restrictions may apply. Check if Subnautica Steam Cd Key is for you. This code CANNOT be activated at Epic Games Store. Only Steam client is viable. The code is global, so you don’t need to use any virtual private network.


RoyalCDKeys also occasionally has some special offers on its website for the absolute best prices. This way, you can enjoy the best deals regarding your favorite titles and get incredible discount codes. You can make price comparison yourself in the official stores. This will feel like getting virtually a free game!


Aside from the prices, we have implemented custom systems to ensure safe transactions and ward off potential scammers, keeping your payment details, money, and personal information secure. We have partnered with the best fraud prevention platforms.

Besides, we have a dedicated Fraud Prevention and Response Department working 24/7 to keep your money safe when you acquire services, no matter in what country you are. 

Instant Delivery

Keep in mind that while purchasing a digital code, you don’t have to worry about delivery time or any extra shipping costs. You’ll receive your game code as soon as the transaction is completed.

Feel free to select the currency and payment methods of your choice.  Join the RoyalCDKeys community to discover the top trending games at affordable prices!

Buy Subnautica via Royal Cd Keys!

Activation Details

To download Subnautica Steam Key, pay attention to the following instructions:

  • Access the Steam site and download the Steam client. 

Enter the Steam website and download the client


  • Open the client and create, sign or login to your Steam account. 
  • Click the ‘Add a Game’ menu located in the bottom left corner of the screen.

‘Add a Game’ to get Subnautica Edition PC


  • Now select ‘Activate a Product on Steam.’

‘Activate a Product on Steam’ and play Subnautica PC


  • Follow the instructions below.

Product Activation to add Subnautica to your wishlist

Product Activation Steam Subscriber Agreement

Enter the product code to install Subnautica CD Key


  • Once you have entered the Steam CD Key, the game will be added to your library. 


Note. This game can just be activated on the official platform of Steam. Please read the store description to notice any region restriction or country restriction.

    Customer Reviews
    5.0 Based on 9 Reviews
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    Connie J.
    Romania Romania



    Sarah J.
    Romania Romania


    Thank you Subnautica for finally making something I always wanted to play. I always had to choose between the storyline or graphic or freedom. And now I got all in one!! I truly hope other games will take this as proof of concept and will continue making open world survivals with amazing stories included. It gives you so many choices but it’s not like you get overwhelmed and don’t know what to do. You don’t really have to sacrifice anything, there’s room for all.

    Marry K.
    Romania Romania

    Get this game ASAP!

    If you are not weak minded, you will thrive at this game. It gets so creepy that you’re actually scared to explore but then learn pretty quickly that exploring while being scared is the best part of the game. It’s not one of the frustrating ones but it does keep you engaged all the time. You won’t get a chance to get bored or lose focus. The graphics are amazing and it does add to the overall feel of the game. I recommend it to all of my friends all the time.

    Yami X.
    Romania Romania

    Hooked on this!!

    Do not play without sound or you will not survive! This is true survival. You hear that sound? You’re most likely dying. Quick actions + the story line completely sold me. I’ve been hooked on it and I can’t even think about playing any other survival game now.

    Yami X.

    Hooked on this

    Do not play without sound or you will not survive! This is true survival. You hear that sound? You’re most likely dying. Quick actions + the story line completely sold me. I’ve been hooked on it and I can’t even think about playing any other survival game now.

    System Requirements

    Subnautica Steam CD Key

    Regular price €24,82

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