Buy Subnautica CD Key for PC

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The cheapest price is 1.67€ (-86%) at Difmark with a rating of 4.1 (13.9k reviews) · Version Steam Account · Region Global · We compare prices at 17 verified stores with 38 offers in stock · Updated on 30/07/2026 55min. ago

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Now available: Subnautica 2, the latest in the Subnautica series

You're viewing an earlier release. The most recent entry in this series for PC Digital is Subnautica 2.

See Subnautica 2 prices for PC Digital →
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About Subnautica

Subnautica is an underwater adventure game set on an alien ocean planet. A massive, open world full of wonder and peril awaits you!

Dive Into a Vast Underwater World




You have crash-landed on an alien ocean world, and the only way to go is down. Subnautica's oceans range from sun drenched shallow coral reefs to treacherous deep-sea trenches, lava fields, and bio-luminescent underwater rivers. Manage your oxygen supply as you explore kelp forests, plateaus, reefs, and winding cave systems. The water teems with life: Some of it helpful, much of it harmful.

Scavenge, Craft, and Survive




After crash landing in your Life Pod, the clock is ticking to find water, food, and to develop the equipment you need to explore. Collect resources from the ocean around you. Craft diving gear, lights, habitat modules, and submersibles. Venture deeper and further form to find rarer resources, allowing you to craft more advanced items.

Construct Underwater Habitats




Build bases on the sea floor. Choose layouts and components, and manage hull-integrity as depth and pressure increase. Use your base to store resources, park vehicles, and replenish oxygen supplies as you explore the vast ocean.

Unravel the Mystery




What happened to this planet? Signs abound that something is not right. What caused you to crash? What is infecting the sea life? Who built the mysterious structures scattered around the ocean? Can you find a way to make it off the planet alive?

Disrupt the Food Chain




The ocean teems with life: Use the ecosystem to help you. Lure and distract a threatening creature with a fresh fish, or simply swim as fast as you can to avoid gnashing jaws of roaming predators.

Handle the Pressure




Build a Pressure Re-Active Waterproof Nanosuit, or PRAWN Suit, and explore extreme depth and heat. Modify the suit with mining drills, torpedo launchers, propulsion cannons, grappling hooks and more.

Fear the Night




As the sun goes down, the predators come out. The ocean is unforgiving of those caught unprepared in the darkness. Areas that are safe to explore during the day become treacherous at night, but also reveal a beauty that those who hide from the darkness will never see.

Dive Below the Ocean Floor




Cave systems wind below the sea bed, from dark claustrophobic passages to caverns lit by bio-luminescent life and burning-hot lava flows. Explore the world below the ocean floor, but watch your oxygen levels, and take care to avoid the threats lurking in the darkness.

About the Development Team




Subnautica is being created by Unknown Worlds, a small studio founded by Charlie Cleveland and Max McGuire that traces its roots back to the 2003 Half-Life mod Natural Selection. The team is scattered around the globe, from the United States to the United Kingdom, France, the Czech Republic, Russia, Thailand, Australia, and many more places. There is a central office in San Francisco, California that serves as home base for the whole team.


Warning


This game contains flashing lights that may make it unsuitable for people with photosensitive epilepsy or other photosensitive conditions. Player discretion is advised.

How much does it cost right now?

Subnautica for PC starts at €1.67 at Difmark, 94% under the €29.99 of the official store — but that is a shared account, not a key of your own. If you want a key tied to your own account, the cheapest is €10.10 at Gameseal.

That €1.67 already includes the Gocdkeys coupon, so apply it at checkout or the store will show you a higher price.

With 38 offers across 17 stores there is enough competition for the price to move, so the gap between the cheapest and the rest is worth checking before you buy.

That puts it 86% under its average of €11.72 since 2017, so today is a better entry point than most days of its life.

Which format should you buy?

The cheapest route is a shared account at €1.67 at Difmark: you get into an account that already owns the game, but it never becomes yours. A key for your own Steam account starts at €10.10 at Gameseal, €8.43 more, and that is the sensible option.

The 14 Steam Gift offers start at €10.37, pricier and more prone to issues.

Can you activate it in your region?

24 of the 38 offers work on US — the Global ones plus the ones issued for your own region.

Is the game any good?

55 outlets reviewed it and it averages 84 out of 100, with 92% recommending it.

Why is one listing so expensive?

One listing is worth ignoring: the Steam gift that Kinguin has at €44.99 is more than 26 times the cheapest offer and is not what this game costs. The number to work from is €1.67 at Difmark.

So what should you buy?

For most people the key at €10.10 at Gameseal is the sensible buy: the game stays on your own account and it is only €8.43 more than the shared account.

Subnautica, the best of the survival genre

Update: Subnautical expansion is now available: Below Zero. You can access the price comparison of this new Subnautica DLC from Gocdkeys.


Subnautica is one of those survival games that create a before and after. Its enormous possibilities, the depth of the game, the RPG elements, the diversity of dangers,... They make it a game at the level of RUST and ARK, among other successes of the same genre. Every lover of the survival genre should buy the game Subnautica without thinking about it, as well as its expansion.

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Why buy Subnautica?

It's one of those games where we can spend hours and hours planning and doing things. The game offers enormous possibilities and will make us squeeze our brains looking for resources and elements to help us survive under the sea.  At all times, the game achieves an enormous immersion, the music, the atmosphere, the light reflected in the sea,... Everything in Subnautica is designed so that we forget about time and dare to explore more and more in this enormous ocean.

In addition, all the ocean around us is completely alive and we can find creatures of all kinds, and even creatures that seem to come from another planet. The seabed also offers enormous possibilities for exploration, as from time to time we will find remains of ancient civilizations full of secrets and valuable treasures that will be of great use to us.

Due to the enormous extension of sea that we will be able to explore in Subnautica, we will have available two submersible vehicles that will help us to cross enormous extensions in a short time. This point is one of the weak points of the game, since we only have two vehicles available, but surely with future DLCs this aspect will improve.

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How do I activate and download Subnautica on PC?

This version for PC of Subnautica is a digital version, which means that after buying it in any of the online stores exposed in Gocdkeys, we will receive a digital key, or also known as cd key, that we will have to introduce in a certain download platform. In the case of Subnautica, we will have to introduce the key in the Steam games platform (section "Add games" of our "Games Library") to start the download.

The best prices and offers for Subnautica

Currently, the game can be purchased from approximately 15€ (prices may change constantly) but is only available in Steam Gift format. If what we are looking for is the version of Subnautica in Steam Key format, we can find it in Gocdkeys from 17€ aprox. so for a little more we can do with the key, which is always safer to activate and offers less problems.

Remember that prices change and are constantly updated, but usually around those figures.

Before buying Subnautica for PC, you should know that...

There are several game formats for Steam: On the one hand we have the Steam Key, which is activated as we explained in the previous step, but we also have the "Steam Gift" format available. This last format, consists of a simple link in which we must click to activate the download of the game. Before clicking on this link, make sure you are logged into your Steam account.

Most common FAQs when buying Subnautica for PC in digital format:

It is a key that will allow you to download the game Subnautica on your PC from official download platforms.
As of 30/07/2026, in United States, the best price we have found in our selection of online stores that include the key for Subnautica on PC is €1.67.
The Steam Key format is what we always recommend due to its ease of use and higher security compared to any other format. You just need to redeem the key in your account to download Subnautica to your game library. The account format requires more complicated steps and is more prone to errors during activation.
The only issue we’ve encountered in 13 years is receiving a duplicate key that doesn’t work. In that case, simply contact the store where you bought Subnautica , and they will provide a new key. You can also contact us, and we’ll help you out.
Delivery times vary by store. For example, in the case of Instatgaming, Eneba, G2a, or Kinguin, delivery is usually instant or takes just a few minutes. These stores rarely delay game deliveries.

Other stores may take 30–40 minutes depending on game availability. On release days, delivery times may be slightly longer.

If you notice an unusually long delay, contact the store or us, and we’ll resolve it as quickly as possible.
At Gocdkeys, we only list the most well-known stores that have passed our quality checks. One of the most important factors is good customer support, and all listed stores offer it.

There have been occasions when those services were overwhelmed, which is why we also offer 24/7 customer support to help resolve any issues or questions.

In any case, we always offer a 100% guarantee, so you won’t have any problems, and if you do, we’ll resolve them as soon as possible.

Need more help? Use our FAQs.

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What do our users think of Subnautica for PC Digital?

4.9/5 (31 Comments)

0

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Soli Ny
2025-06-22 19:34:57

Explore an oceanic alien world—find and build bases, and craft gear—while going about the mysteries beneath the waves. On top of the water, it's serene. But as you venture in the deeper sections of the sea, suspense and terror start kicking in. Before anything else, if exploration and survival coupled with some chill vibes and sudden terror are your things, then this is your best call.

1

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SilentInk
2025-06-12 09:58:23

Subnautica places you right at the heart of the alien ocean of Planet 4546B as the ultimate survival-horror setting. All you get is helplessness and your plumbing tools, base-building underwater, and going further into abyssal unknown leviathans prevail. The apocryphal art of luminescence comes beyond wondrous, yet drama and terrifying sound mix to give equal measure of awe and dread. The weird mixture of horror and wonder-always under no circumstance look back!

2

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davidrhodin
2019-04-17 17:34:55

Great game! simple as that. Beautiful enviroments, fun base building and crafting system and interesting story. I highly recomend everyone give it a try.

3

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Lord Cruaver
2018-12-23 08:28:10

It's an incredibly good game. I got it free from Epic games. It's free to keep, but the 100% sale only last till 12/28/2018. Anyways, thanks to that I got the pure pleasure of experiencing the game, I look forward to seeing the next game.

4

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kajasaules212
2018-08-10 14:12:27

Very nice, i love to be in aqua and play with the fishes i like that starship where i live too i maked it very big and cool, but this game has food and health bar so it makes it hard to play.

5

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ormanyan
2017-12-23 14:08:45

Subnutica is a very good game. It has very cool graphics, gameplay and design. I hope i can win it for free one day ;). Good luck to the winners! loL

6

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lilit254
2017-12-21 07:19:20

Subnutica is a very good game. It has very cool graphics, gameplay and design. I hope i can win it for free one day ;). Good luck to the winners!

7

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ormanyan
2017-12-19 16:24:56

Subnutica is a very good game. It has very cool graphics, gameplay and design. I hope i can win it for free one day ;). Good luck to the winners!

8

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panteraneagraataca
2017-06-15 13:31:59

One of the best survival open world game,it bring up new condition to survive,on a strange planet underwater!

9

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Argumanez
2017-01-26 23:27:28

Want this game! very fun!

10

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quasardian
2016-04-13 11:20:13

This game looks incredible, and is only becoming better throughout the development.

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