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A Sunless Sea Zubmariner Steam Key — also known as a CD Key or digital code — is the official activation code you redeem on Steam and keep in your library permanently. From €5.49 (no fees) at Steam · 2 verified stores, 2 offers in stock · Updated 40min ago.

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Recommended by GoCDKeysiStore recommended by GOCDKEYS for this game
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Eneba 4.4 (328.4k)
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Eneba 4.4 (328.4k)
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About Sunless Sea Zubmariner

LOSE YOUR MIND. EAT YOUR CREW. DIVE.


Take the helm of your zubmarine and set sail for the unknown! Zubmariner is an expansion to Sunless Sea: deeper, darker, and more marvellous than anything you’ve seen before.

All the powers of the Neath agree: there is Nothing of Consequence beneath the Zee. They are lying. You've heard there are fortunes to be made by those brave enough - or hungry enough - to dare the deeps.

Disturb the aberrant societies that flourish in the dark. Defy wreckers. Seduce a Drownie. Embrace or condemn the distinctly un-British customs of these cold, fathomless places.

You will definitely die. Will your next captain dive?

KEY FEATURES

  • More of the deep, compelling world of Sunless Sea and Fallen London, packed with stories and secrets. Plunder mournful wrecks on the zee-bed. Dive into unplumbed abysses and claim their eerie blessings. Seek immortality.

  • More beautiful, hand drawn art. Witness the marvels beneath the Sea of Statues and the Principles of Coral. Visit the quaint undersea parish of Low Barnet.

  • Convert your ship into a zubmarine and dive anywhere in open water to discover new cities, zee-beasts and environments to terrify your crew and slake your hungers.

  • 11 new underzee ports, each with their own tales and opportunities for the enterprising Trespasser. Visit Dahut, the city of drowned delights. Brave Wrack, where a Fair King rules the unforgivable. Explore Anthe, and sharpen your tongue, your liver, and your spleen.

  • New enemies to face, from the cunning Wreckship to the inexorable Constant Companion.

  • Discover the treasures the zee has claimed. Explore ancient wrecks, avoid hostile witherweed, discover the unexploded Unclear Bomb.

  • Seek immortality in a new ambition! Track down the Seven Against Nidah, who once came within reach of eternal life. Can you succeed where they failed?

  • Sanity is scarcer. Death is closer. We warned you, Trespasser. You should not have come.

How much does Sunless Sea Zubmariner for PC cost right now?

Sunless Sea Zubmariner for PC starts at €5.49 (no fees) at Steam, a Steam key.

We have never recorded it cheaper than this.

Just 2 stores stock it, 2 offers in all, so there is little here to push the price either way.

Is it worth buying the Steam Key for Sunless Sea Zubmariner now or waiting?

That €5.49 (no fees) key is at one of its best prices.

  • Those €5.49 (no fees) are 43% below what it usually costs, measured on the store price.
  • Only 1 stores sell the Steam Key, and with that little competition the price barely moves.
  • Not counting today, only 285 days out of the 1,900 days on record were this cheap or cheaper; the lowest it has ever cost is €3.82.
At this price it is worth buying the Steam Key now: what you stand to gain by waiting is a few euros, and it is not guaranteed.

Worked out from 2,114 daily records of the Steam Key for Sunless Sea Zubmariner across 7 stores. See the full price history.

The price does not include each store's payment fees. The percentage is measured on the store price, without coupons, because that is how we record the history. The analysis only counts Key offers. Shared accounts, Steam Gift and physical editions stay out, because they are not the same product and their prices move differently.

Which Sunless Sea Zubmariner editions are on sale?

Beyond the standard edition at €5.49 (no fees), there is the Special at €10.52 (€11.97 with fees) at Eneba, €5.03 (€6.48 with fees) more. Check on the store what each one adds before paying the difference.

Can you activate Sunless Sea Zubmariner in US?

All 2 offers are Global, so the code redeems on any account no matter where it was created.

Is Sunless Sea Zubmariner worth it?

Critics put it at 72 out of 100, though there are only 19 reviews published so far.

Sunless Sea Zubmariner cd key is a digital product that it will be donwloaded from Steam gaming platform. Zubmariner is the first DLC pack or extra content for the game Sunless Sea, which we wore at the helm of our little steamboat and we should sail into the unknown. This new expansion will allow us to explore a sea in chaotic gothic world, full of stories and secrets to discover. We´ll can dive into unfathomable depths in search of immortality, travel through ruins and filled with ancient civilizations and full of dangers, dive anywhere these mysterious waters, searching for hidden treasures of ancient shipwrecks, visiting new ports where stop to feed our cravings exploration, with new stories and opportunities, and much more. A unique game whose expansion will leave us more hours of exploration in this fascinating and masterfully hand drawn world.

Most common FAQs when buying Sunless Sea Zubmariner for PC in digital format:

It is a key that will allow you to download the game Sunless Sea Zubmariner on your PC from official download platforms.
As of 26/10/2026, in United States, the best price we have found in our selection of online stores that include the key for Sunless Sea Zubmariner on PC is €5.49 (no fees).
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 Sunless Sea Zubmariner 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 Sunless Sea Zubmariner, 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.

What do our users think of Sunless Sea Zubmariner for PC Digital?

5/5 (1 Comments)
quarajo

Parece un buen juego, espero probarlo y asi poder recomendarlo

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Sunless Sea Zubmariner

Is it worth it?

Good overall reception OpenCritic Fair
  • 75/100Critics' average scoreOpenCritic · Fair
  • 53%Critics recommend it19 critic reviews
  • 90%Steam reviewsVery Positive · 107 reviews
  • 5.0/5GoCDKeys users1 ratings →
Write a review → See it on Steam →

What the press says

Average of 73 across 16 reviews
US 14 ES 1 SK 1

PC Gamer

90

Verdict: The dangers of the abyss are well worth facing for Zubmariner’s bounty of fantastic stories and strange adventures. Read more

PlayStation LifeStyle

90

Failbetter Games have brought upon themselves a trademark capable of enduring over time, born with Fallen London back in the day and now present in both Sunless... Read more

Chalgyr's Game Room

90

If you are looking for something different, something deeper, but want to maintain the darker presence of a Lovecraftian novel, then Sunless Sea: Zubmariner Edition... Read more

PS4Blog.net

85

Sunless Sea: Zubmariner Edition is a solid release that fans of the roguelike genre will greatly enjoy. There is a lot to do, and the... Read more

About the game

Release date
3 Jul 2017
Genre
Adventure Indie RPG
Modes
Singleplayer
Setting
Story Rich Exploration Atmospheric
Languages
English

Requirements

Minimum:
  • OS *: Windows XP or later
  • 2Ghz or better
  • 2 GB RAM
  • 1280x768 minimum resolution, DirectX 9.0c compatible graphics card
  • Version 9.0c
  • 1 GB available space
  • Sound Card: DirectX 9.0c compatible
Minimum:
  • Mac OS X 10.6 or later
  • 2Ghz or better
  • 2 GB RAM
  • 1280x768 minimum resolution, DirectX 9.0c compatible graphics card
  • 1 GB available space
  • Sound Card: DirectX 9.0c compatible
Minimum:
  • 2Ghz or better
  • 2 GB RAM
  • 1280x768 minimum resolution, DirectX 9.0c compatible graphics card, OpenGL Core
  • 1 GB available space
  • Sound Card: DirectX 9.0c compatible

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