Buy Sunless Skies Steam Key

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A Sunless Skies 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 €2.54 (-89%) at K4G, 89% below the €22.99 Steam price · 7 verified stores, 14 offers in stock · Updated 01h 09min ago.

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About Sunless Skies


Captain a spacefaring steam locomotive as a new Victorian empire takes to the stars! Lead your hapless crew into trouble – and out of their minds. Smuggle souls. Barter for barrels of time. Stop for cricket (and a nice cup of tea).



Sunless Skies: Sovereign Edition is the complete and definitive version of Sunless Skies. It incorporates the many additions made since launch – including new officers, enemies, engines, stories, and mascots, as well as a completely reworked region, a full steam mode for long journeys and desperate escapes, and the much-requested horn – as well as dozens of quality of life improvements.

Create your past


Choose who you were before you became a skyfarer. An urchin? A priest? A revolutionary? What brought you here, and what are you hiding?



Each time your character advances, choose another facet of their history. Were they the Black Sheep of the family? Do they have a Lost Love?

The skies are cruel. Most of your captains will die. But each will leave their mark on the world, and an inheritance for those who follow – for better or worse.

Explore a beautiful, hostile universe





Discover more of the deep, dark, marvellous Fallen London Universe, as seen in our previous game, Sunless Sea. (But you don’t have to play that first! This is a totally new story, not a sequel.)

Improve your locomotive





Your locomotive is all that stands between you and the many dangers of the Heavens. Maintain and upgrade it with exotic weaponry and equipment, like a Pneumatic Mining Array, or the rapid-fire Brassraven. Learn how to craft exotic weapons like the Wrath of Heaven from your defeated enemies. And when you have enough funds, buy an entirely new one! Perhaps you would enjoy the capacity of the Pellinore-class Trader? Or the sleek malevolence of a Medea-class Destroyer?

Fight marauders, Her Majesty’s agents, and abominations of the skies





Face rival locomotives – anything from scrappy pirates to experimental warships of the imperial navy. Battle monsters like the nightmarish Undeparted, or swarms of irate Chorister-bees. Play different factions against each other, and learn the unique behaviours of each foe. Use Full Steam mode to evade trouble or chase down your quarry.

Survive starvation, madness and terror





Manage your crew’s morale and your captain’s own nightmares. Balance your fuel and supplies against your desire to explore new horizons, or pursue knowledge, or seize riches.

Beware: we are all changed by the dark.

Recruit variously helpful officers





Populate your ship with upgradeable officers, each with their own quest to fulfill: a repentant devil, an incognito princess, an entire brigade of rats, and – dear god! – your own Aunt?! How did she get out here?

The World


Unfettered by gravity, the Victorian Empire begins to reach across the skies. It has built a new sun. The Empress reigns from the Throne of Hours, which gives her control over time. Its ambition is vast; its mercy slim.

The High Wilderness is a wondrous, horrifying vision of space where the rules are not as we imagined. Winds howl through shattered celestial ruins. Fogs coil amidst stellar jungles. Industrial sprawl chokes the heavens with smog.

The stars are alive. They are the Judgements: vast intelligences that govern all things. But they are dying. One by one, something is snuffing them out, leaving their thrones empty.

Your captain must make their way in this impossible world as they trade, explore, fight and survive. Pick your side carefully, for you might be the thing that tips the balance of power – will you support Her Majesty's new empire, or the rebels who mean to throw off London's rule? Or perhaps you spurn such concerns, and intend to chart the narrow course between the two? Will you retire triumphant, or be lost to the dark?

Features

  • 800,000+ words of intertwining stories with a depth and richness unlike anything else in games, inspired by CS Lewis, Jules Verne, HP Lovecraft and HG Wells
  • Lush, hand-drawn 2d art
  • Four regions to explore: celestial wilderness, impossible industrial empire, pagan midnight expanse, and the domain of the dead
  • Real time combat against horrifying celestial foes and merciless pirates
  • Upgrade your engine with bizarre equipment and powerful weaponry
  • Battle starvation, mutiny, terror and nightmares – or give in to them
  • A choice of play styles: build a lineage of captains as each dies, or reload your most recent captain and continue
  • Narrative levelling: discover your captain’s past as you traverse the skies
  • Earn your fortune in a unique, story-rich trading system, or risk it all to become a smuggler
  • Collect pets: the Inadvisably Big Dog, Useless Cat, Perfect Pangolin and more
  • Key remapping for keyboard and mouse, and full controller support

Who are Failbetter Games?


We’re a small British games studio based in London. We’ve been making indie games since 2009. Come with us into the dark.

How much does Sunless Skies for PC cost right now?

Sunless Skies for PC starts at €2.54 at K4G, a Steam key, which is 89% under the €22.99 it costs on the official store.

This is the lowest price it has ever been recorded at.

That €2.54 already includes the GCDK14DEAL coupon, so apply it at checkout or the store will show you a higher price.

With 14 offers across 7 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.

Steam Key
€2.54
with coupon €2.95
Stays on your account for good
Steam Gift
€2.63
with coupon €2.99
Pricier and more likely to fail

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

That €2.54 key is at its usual price: no bargain, no spike.

  • Those €2.54 are 4% below what it usually costs, measured on the store price.
  • Only 6 stores sell the Steam Key, and with that little competition the price barely moves.
  • Not counting today, 513 days out of the 1,207 days on record were this cheap or cheaper; the lowest it has ever cost is €1.04.
It is not a bad price, but it is not this Steam Key's floor either. If you are in no rush, we will tell you the day it drops.

Worked out from 2,729 daily records of the Steam Key for Sunless Skies across 15 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 Skies format should you buy?

By format: Steam Key from €2.54 and Steam Gift from €2.63.

Can you activate Sunless Skies in US?

9 of the 14 offers work on US — the Global ones plus the ones issued for your own region.

Is Sunless Skies worth it?

26 outlets reviewed it and it averages 85 out of 100, with 88% recommending it.

Why is there such an expensive Sunless Skies offer?

One listing is worth ignoring: the Steam gift that G2A has at €28.37 is more than 11 times the cheapest offer and is not what this game costs. The number to work from is €2.54 at K4G.

Sunless Skies is an indie exploration game with elements of RPG that will take us to the stars and planets more distant. This is the next delivery of Sunless Sea, which took place at sea, is very similar to this only now we will travel the cosmos.


Sunless Skies places us in the twentieth century in a Victorian London and we will be the captain of a space locomotive, that we must govern through the planets and the stars discovering civilizations, trading with other races, fighting against all creatures and much more, and all for the glory of the British empire.


Each incursion into space is as precarious as a polar expedition, since in addition to directing the ship through the stars we must take care to load the resources carefully and keep our crew happy and controlled, if we want to avoid a mutiny.


The universe is full of dangers and we must equip our boat as best we can to deal with any threats that we encounter. Therefore, Sunless Skies offers the opportunity for captains to upgrade and equip our ship with additional armor upgrades, increased firepower, improve the quality of our crew, ... And many other features that we can evolve as we cross the Galaxy.

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

It is a key that will allow you to download the game Sunless Skies on your PC from official download platforms.
As of 23/08/2026, in United States, the best price we have found in our selection of online stores that include the key for Sunless Skies on PC is €2.54.
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 Skies 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 Skies, 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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