LOSE YOUR MIND. EAT YOUR CREW. DIE. Take the helm of your steamship and set sail for the unknown! Sunless Sea is a game of discovery, loneliness and frequent death, set in the award-winning Victorian Gothic universe of Fallen London.
User reviews:
Very Positive (127 reviews) - 87% of the 127 user reviews in the last 30 days are positive.
Very Positive (3,025 reviews) - 81% of the 3,025 user reviews for this game are positive.
Release Date: Feb 6, 2015

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Recent updates View all (54)

July 21

Sunless Sea update for July

Zubmariner Beta Update

Experienced zailors will know that Zubmariner is the first expansion to Sunless Sea, due out this Autumn. For newcomers: Zubmariner will allow you to add a zubmarine shell to your vessel, in order to make risky dives below the Unterzee. Stories, loot, zee-beasts and surprises will be there to discover - but the risks will be even higher than surface journeys.

Work continues apace on this new and more intense layer to the game! Beasties, animations and new ports are being added to the beta. Your correspondent met with the director of development yesterday and could hardly keep from squealing with delight at the terrible, wonderful stories you’re going to experience down there.

For people who have struggled with screen resolutions and text sizes in Sunless Sea, we’ve recently blogged about updates to the UI which are now in Zubmariner, and which will be rolled out to Sunless Sea when Zubmariner is released.

New Zubmariner development video

In which we discover a Triskelegant. If you manage to defeat one, you can risk dragging it aboard. They’ll pay double in London for anything that’s ‘pole-and-line caught’.

Reminder: we’re coming to Twitchcon!

We’re really excited to be doing our first ever event in the US!

Twitchcon is from 30 September to 2 October. Team FBG will be there, showing Zubmariner and giving out goodies (including special gifts for people in costume or who bring us fan art to decorate our office, which otherwise looks very much like a plain Victorian chapel, because that’s what it is).

9 comments Read more

June 23

Zubmariner News for June: We're in beta!

Sunless Sea is in the Steam Summer Sale!

Welcome to those of you who’ve joined us in the sale. You’ve made a wise decision to avoid all of that dreadful sunlight outside in favour of long and lonely journeys on a dark and unforgiving sea, dying repeatedly in the pursuit of (for example) a crate of human souls.


Hooray! The first expansion for Sunless Sea, Zubmariner, is now in beta. Thank you to the hundreds of you who signed up to test! We’ll re-open signups further down the line, quite likely - watch here and in the Steam discussion forums for news.

Zubmariner is an expansion to the base game which will enable you to travel beneath the zee in a creaking, groaning Zubmarine. More stories, more pressure, more terrible things in the dark.

Zubmariner: Flora

A look at some of the procedurally placed plants and corals of the Unterzee, including our favourite, the brain coral.

We’re coming to Twitchcon!

We’ll be in the Indie area at Twitchcon in San Diego, from 30 Sept to 2 Oct! This is our first ever consumer event in the US! We can't help but use a lot of exclamation marks when considering the possibilities! Ack!

We will bring Sunless Sea and Zubmariner goodies. These will include special, limited edition and not commonly available goodies for anyone who comes to see us in any form of Neathy costume, or who brings art/made things for us to take to our office (flat things which go nicely in a suitcase). We handed out a few of these at London Comic Con and it was lovely. We can't wait to do it again. Let us know if you’re coming! (If you're not coming, it will all - of course - be broadcast on twitch.)

12 comments Read more


“Sunless Sea's method of storytelling isn't unique, but it has never been realised with such impact and elegance.”
10/10 – Eurogamer

“Absolutely the best writing in any video game since, well, as long as I can remember.”
10/10 – PCGamesN

“a very compelling and satisfying adventure... The realm of possibilities seems endless, and every time I set sail I find something new.”
9/10 – Destructoid

About This Game


Take the helm of your steamship and set sail for the unknown! Sunless Sea is a game of discovery, loneliness and frequent death, set in the award-winning Victorian Gothic universe of Fallen London.

If the giant crabs, sentient icebergs and swarms of bats don’t get you, madness and cannibalism certainly will. But that old black ocean beckons, and there’s loot for the brave souls who dare to sail her.

Betray your crew, sell your soul to a Devil, marry your sweetheart. Survive long enough and you’ll achieve your life’s ambition.

You will die, but your legacy will live on…

Key features

  • A deep, compelling world packed with 200,000+ words of stories and secrets. Find your father’s bones. Determine London’s destiny. Defy the gods of the deep sea.
  • Beautiful, hand drawn art - castles of sparkling ice, prisons perched on lily pads, fog-shrouded lighthouses and the DAWN MACHINE.
  • Your captain will die. But you can pass on resources from one generation to the next. Acquire a family home and a hoard of heirlooms. Build up your own story across generations of zailors who braved the sea and lost - or won...
  • Real-time combat against ships and Zee-beasts, spider-crewed dreadnoughts and sentient icebergs.
  • Light and dark, terror and madness: stray too far from the gas-lamps of civilisation and your crew will grow fearful and eventually lose their sanity.
  • Upgrade your steamship with powerful engines, cannons and pneumatic torpedo guns. (Or buy a bigger, better ship.)
  • Hire unique officers like the Haunted Doctor and the Irrepressible Cannoneer. Each has a story to tell, if you can draw it out of them.
  • Choose a ship’s mascot: the Comatose Ferret, the Wretched Mog, the Elegiac Cockatoo, and more!
  • Trade or smuggle silk and souls, mushroom wine and hallucinogenic honey.

System Requirements

Mac OS X
    • OS: Windows XP or later
    • Processor: 2Ghz or better
    • Memory: 1 GB RAM
    • Graphics: 1280x768 minimum resolution, DirectX 9.0c compatible graphics card
    • DirectX: Version 9.0c
    • Storage: 700 MB available space
    • Sound Card: DirectX 9.0c compatible
    • OS: Mac OS X 10.6 or later
    • Processor: 2Ghz or better
    • Memory: 1 GB RAM
    • Graphics: 1280x768 minimum resolution, DirectX 9.0c compatible graphics card
    • Storage: 700 MB available space
    • Sound Card: DirectX 9.0c compatible
Customer reviews
Customer Review system updated! Learn more
Very Positive (127 reviews)
Very Positive (3,025 reviews)
Recently Posted
( 24.8 hrs on record )
Posted: July 23
"We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far." - H.P. Lovecraft

...you know what you do in this game? You take a look at those black seas and voyage the ♥♥♥♥ on out there. There are a lot of horror games on Steam, and there's fantasy and sci-fi aplenty, but Sunless Sea stands out for being a true work of weird fiction. It's about horror, and it's about survival, but it's not a zombie shooter or a walking simulator with jump scares. It's a steampunk game that feels dark and wondrous and strange instead of slapping a couple gears and monocles on everybody and calling it a day.

Go forth, bold zee-captain. Navigate under false stars and take shore leave at sundry isles shrouded in fog and wreathed in uncanny flora. But watch your provisions carefully. Should you fail, you won't go gently into that good night. You'll go kicking and screaming, with a mad glint in your eye and the taste of your crewmates' flesh on your tongue.

I wish you all safe travels, and pleasant dreams.
Helpful? Yes No Funny
( 77.3 hrs on record )
Posted: July 23
Product received for free
7/7 - THE SUN
Helpful? Yes No Funny
( 8.5 hrs on record )
Posted: July 22
A pretty hard game to get into, but once you are into it i can highly suggest it.
Have a beer or smoke a join, lay back and actually read the ♥♥♥♥♥♥♥ text for once, you wont regret it!
Helpful? Yes No Funny
( 10.6 hrs on record )
Posted: July 21
Helpful? Yes No Funny
( 42.8 hrs on record )
Posted: July 21
Being a really big fan of Fallen London I absolutely loved this game! The gameplay is slow and confusing at first, but you quickly learn your own way of proceeding forward and earning echos. Sunless Sea offers rich and indepth stories which may be for yourself such as helping guinea pigs fight rats or finding your father's remains. There are also stories for your officers which can be extremely dark, many of which seek an end. The game is dark (no pun intended) but it is really creative. The only warning for playing this game is what I said before it is a really slow game. *I would definitely download the Fallen London app or visit the site. It's amazing and depending on which mission you finish you can fish out an award in the Sunless Sea!
Helpful? Yes No Funny
( 36.3 hrs on record )
Posted: July 21
I'm just going to start out by saying this, I bloody love this game.

Sunless Sea is a beautiful roguelike set in the world of Fallen London (which is actually a free, browser based story game with not to dissimiliar mechanics to mafia wars on facebook but with incredible stories and tales to follow) where an entity merely known as the bazaar exchanged london with old queen Vic, circa 1861, in return for her husbands mortal soul. This results in london being dragged down to the Unterzee, a world where the rules are only known by those in power and those in power really like keeping it that way.

Enough background, on to the game (i just think the backstory is one the most facinating and unique parts of the game).

Gameplay wise you are in control of a vessel (which at later stages you can trade in for a better one) with which you must explore the Unterzee. The ship requires fuel for the engine and lamp (as without a sun the Unterzee is pitch black) and supplies for your crew. You also need to manage your crews terror as it can negatively effect several aspects and also result in your crew either commiting suicide, going mad and killing other crew members or worse yet killing you for being such a bad captain. Run out of fuel you can wait for rescue until your supplies run out but as the game so aptly says without fuel your ship is just a mishapen house on water. Run out of supplies and, well, cannabilism is always a better choice than starvation for most. If you do die (and trust me you will as you learn the ropes and do's and don't's) there is this really unique system where you can decide what you inherit form the previous captain picking from rival, correspondant, pupil, shipmate or salvager each offering you particular bonuses. You can also choose a past or choose not to have one and reveal it later (again each decision really ripples outward as you can simultaneously limit and expand what you can do just by devoting yourself on a particular path).

There are many, many beautiful and unique places to visit but the ones really worth seeing are the ones beyond the local cluster of islands that surround london as these are technically protectorates of london and so they don't have much of the weird and whacky variety. In these places are equally cool story lines that just really grip the imagination with beautiful written passages and stories. As for the Zee itself, well, beautiful and terrifying really come to mind and so much fun to explore.

To be honest there are so many amazing elements to this game that i could be here all week explaining it but I will say this; I bought this game approx. five days ago and its the only game I've been playing since.

10/10 - would happily die again.

Helpful? Yes No Funny
( 7.2 hrs on record )
Posted: July 20
This is really boring, I dont know what "pages", "mirrors" or "hearts" really do and I'm 7 hours into it (and don't tell me to google it). I died 4 times and was never better off when I spawned a new captain. There are ports to visit but all you do at each port is click through a short story about the weird inhabitants, gain a "port report" that you can turn in for a little bit of money and move on. The ship combat is uninteresting... kite, wait for a cooldown and shoot another tordedo that has a %100 accuracy if you wait long enough. "Wait" seems the key term here. Wait for a different game that doesn't suck.
Helpful? Yes No Funny
Caius Wickersham
( 13.4 hrs on record )
Posted: July 19
Played for two hours. Was really getting into exploring the game world when I died to a giant angler crab. 10/10. Will continue to explore and play.
Helpful? Yes No Funny
( 47.9 hrs on record )
Posted: July 19
This is a fantastic game with an awesome atmosphere. It's difficult, and you'll die quite a few times while still coming back for more. I recommend it for the price.
Helpful? Yes No Funny
( 36.4 hrs on record )
Posted: July 19
That is a very nice game. However, the artwork is sometimes really weird...
Helpful? Yes No Funny
Most Helpful Reviews  In the past 30 days
50 of 54 people (93%) found this review helpful
43 people found this review funny
78.1 hrs on record
Posted: June 28
- Oh look a shiny crab. How cute is that!

- What are those, bats?

- Accepted a poor traveler. Day 1: cool, he´s really hard working. Day 2: I guess, for the sake of religious diversity, I should let him keep that salt shrine. Day 3: a zailor suicides. Day 4: Mutiny.

- Runs out of fuel after crossing entire zee right before being able to reach London´s dock. Also no echo to pay for someone to haul me in.

- Agrees to take a dozen of tomb-colonist too early on in the game. Those bummers steal all the food.

- Mother of crabs! Humongous mother of crabs! Better turn off the lights and stay out of her way. Why is she following me?

- Used up all the mob´s money for something really cool. Unfortunately, mob doesn't agree

- Let my office train my zee captain. Gets hurt. Something I cant recall happens. Gets hurt again.

I started to name captains with numbers to help me keep track of my unwilling serial killing of them visible in the upper right corner of the screen.

20/10 would serial kill them again.
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29 of 37 people (78%) found this review helpful
Not Recommended
6.3 hrs on record
Posted: July 1
I hate to be a negative voice against a game which is so unique. But this game just did not work for me. I love the setting, the writing was often very clever, and the art of the environments was super unique and appealing. The issue for me was that the game was very slow, both in navigating menus and in combat and sailing. These would be issues for any game, but it's bad in particular for a roguelike where one is expected to die and retry multiple times. After a death even clicking through things quickly there is like 20+ minutes of boilerplate actions that need to be taken to start off into the ocean. It's just too much repetition of slow menu navigation and exploring around your home base that you need to do before actually progressing further into the interesting bits. I only played a few lives and I was already bored with the same text and actions that I had to take. I never got that "just one more life, I gotta try that again" that I get from games like Rogue Legacy or Risk of Rain. More just a feeling of "do I have to do all that again?"

I'm not sure if it would really fix the issues that I had with it, but it is a game that I feel would actually be better not as a Roguelike. Just let me keep my experience so that I can slowly build up my ship and actually explore the world and read all the interesting stories and see the beautiful art.

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14 of 15 people (93%) found this review helpful
1 person found this review funny
117.3 hrs on record
Posted: June 24
Sunless Sea, while certainly not for everyone, is a wonderful game if you are into exploration, gothic horror, H.P Lovecraft, or games with deep and hidden pieces of lore. It is extremely well-written, and the world it takes place in is fascinating (at least it was for me). However, the game has pacing issues, and can feel very slow at times, to the point where it can feel like progress is almost impossible.

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7 of 7 people (100%) found this review helpful
2 people found this review funny
7.5 hrs on record
Posted: July 5

Sailing between Unterzee London and the Mediterranean Sea I would buy coffee in London and sell it in Vienna. Every trip I would buy and profit more. Eventually I bought the largest cargo vessel available in the game and loaded it down with the rest of my money in coffee...

When I reached the surface I found that my buyer had committed suicide and no one else would purchase the goods. I had only one dollar more than was necessary to return underground. When I got back I found I didn't have enough fuel to return to London and needed to sell most of the crew's food to purchase more. Once back in London I sold the coffee back at a loss and started to find other ways of making profit while operating hand to mouth.

That will be your experience in this game. That, and sudden unavoidable deaths you had no way of anticipating.

Other than the gameplay exerience there is the writing. The game has no actual story. Intstead it is a world you learn about and observe while completing quests. The writing in these quests can be interesting and I wouldn't call it ham fisted, but it can be tedious and melodramatic. At times the writing can be insulting too, but I did enjoy most of it.

One more thing. Steam does not track offline hours. Most of my time in this game has been offline.
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8 of 9 people (89%) found this review helpful
6 people found this review funny
24.1 hrs on record
Posted: June 29
I broke the law by smuggling sunlight until I could upgrade my ship, so i could legally merchant human souls.
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4 of 4 people (100%) found this review helpful
1 person found this review funny
21.7 hrs on record
Posted: July 3
My every failure, and even my successes, measured in terror.

I greet my new crew as they come aboard. I wonder if they can see their deaths reflected in the mirror of my face. Woe, being litany, is something we share; theirs only being much shorter. I will remember every face. I will listen to their laughter, until it stops, has run out, like sand from a glass. The sound replaced by the beating of ten thousand featherless wings in a negative space full of ruin and madness colored the blackest pitch.

This abyss we sail upon does not need you to look into it to take your measure. It knows that everything alive has been born a lesser monster than itself.

From behind the door to my quarters, I listen to these men boast of courage and bravery. They don't yet understand the way their sanity will be tethered to the ship's light - and what will happen when we must extinguish it to save ourselves.

10/10 for jumped-up IF unfairly attached to a RNG
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7 of 10 people (70%) found this review helpful
12 people found this review funny
Not Recommended
9.4 hrs on record
Posted: July 2
actually a fair bit of legwork required before you are allowed to eat your crew
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3 of 3 people (100%) found this review helpful
177.5 hrs on record
Posted: July 12
This game is by far one of the most fun and immersive experiences I've had in a long time. In the span of a couple of hours of playtime it managed to make me feel happiness, anger, sadness etc. I got attached to the characters I met, the story and every little mystery (of which there are MANY) sucked me in almost instantly.
- FANTASTIC writing
- Great characters
- Amazing soundtrack
- Glorious story and lore
- Chilling graphics, that fit amazingly well in the narrative
- The most interesting and creepy exploring I've done in a game
- Time consuming
- Time consuming - the boats go real slow, the map is huge, you need a lot of time to get somewhere - is not a con if you can just boot up Netflix while slowly sailing
- Agonizingly grindy at the start - the game's currency (ehoes) is very hard to come by at the start - it's slow and tedious to amount a fortune, but once you're into the game and a couple of your captain's die, it will get easier
- A lot of reading - if you don't like reading, this game isn't really for you

Overall, I adore this game. The story, the setting, the music - everything. I even love grinding in this game.

"God bless Her Enduring Majesty, the Empress."
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3 of 3 people (100%) found this review helpful
254.3 hrs on record
Posted: July 1
Tip of the Day: Mysteries are Fire! Truth Burns!

Excellent atmosphere for a Cthulhu Mythos Friendly Rogue-lite narrative-heavy game set within Victorian Age London.

London has been swallowed by the Sunless Sea and Fallen beneath the Waves into an eldritch subterranean underworld where eldritch dieties named Salt, Stone, and Storm are worshipped by strange alien denizens. Time flows strangely here and Death is a kindness oft sought but seldom found everywhere in this subterranean world over a mile beneath the ground.

You are a Zee Captain who has chosen to explore this rich, diverse alien world in pursuit of your own Ambitions. You have appropriated by means fair or foul a servicable if cramped steam-punk boat powered by a rickety if functional engine and recruited a handful of hardy crew members to your cause. Together you shall go forth upon the eldritch waters of a living darkness that slowly saps your body and devours your mind.

The story unfolds as you explore areas deeper into that gaping maw of antediluvian horrors as you zail away from the relative safety of Fallen London. Yet to Fallen Londen you shall always return carrying with you the seeds of forbidden knowledge, the scars of eldritch horror, and many otherworldly artifacts and secrets. If you survive long enough, you may eventually lay the proper foundations for a family of your own and a brave lonely child who if sufficiently inspired by tales of your exploits at Zee shall carry on the family tradition if the unthinkable should happen to you.

Writing: The Writing in Sunless Sea is concise, brilliant, rich and replete with eldritch imagery and alliteration that would make H.P. Lovecraft himself proud to accord its unique place within the Mythos. Everywhere you zail, there are elements of eldritch mystery and supernatural horror woven into a darkly comical humor washing over every inhabited island floating upon this Sunless Sea. The writing is easily the best part of this game as it lies within these small little stories that slowly bring Sunless Sea to life within your mind. Every tiny port lit by artificial light is imbued with its own unique character stitched into the atmosphere of the game refined into a complete and comprehensive whole that makes your Captain's story all the more intense.

Grind: There is a learning curve to this game but I did not find it that terribly difficult to overcome. If you want some tips and advice there are numerous guides in the community guide forum on Steam to help you short-circuit where you should go if you want to make a sustainable early income. The community is friendly if not overly given to poetry or alliteration themselves. They will be more than happy to help you get over the "Grind" of learning the do's and don'ts of this game.

The world of Sunless Sea is replete with many things for your Captain to do in the Neath before he dies to some pirate coursier or the casual cruelty of the alien denezins that inhabit this alien world. The Atmosphere of the game is as immersive and deep and strange as the Setting and Atmosphere itself.

The only real CON to Sunless Sea is that they do not update this game with fresh stories as frequently as they once were wont to do so eventually you will find yourself running through all the variations of the stories implemented in stunning richness within the vault of your imagination. Add to that, the relatively difficult learning curve coupled to the slowness of your boat's initial engine will make this a game that requires patience and foresight if you are to have your Captain to survive long enough to pass his Legacies on to the next generation but the rewards are great for those who perserve with this rogue-lite narrative game.

Gameplay: You have Stats that correspond to skills and abilities that are utilized in stories to determine the outcome of various adventures. Unlike most games, Sunless Sea encourages you to play through even your failures since sometimes a lesson not learned may be as important to your Captain's long-term survival as succeeding at everything.

Summary: The writing stays fluid through all potential outcomes failure and success alike. There is so much richness in the feedom of choices on offer here that it puts to shame anything you will find in any Telltale Studio game. Through it all the Setting, Atmosphere, and Quality of the Writing within this game make it an absolute must buy for any bookophile looking to experience life within a very alien world replete with Lovecraftian horrors and stories ranging across a broad range of Mythos-related themes. This is supernatural horror at its finest set within a Victorian Sunless Sea Steam-Punk world filled with strange, mysterious, and terrible creatures that may help you, hurt you, or eat you for their own inscrutable purposes. There are many ways to survive and there are many ways to die. It is a rogue-LITE narrative driven game so be mindful of that as one Captain's death may be another Captain's salvation.

Bottom Line: Sunless Sea is definitely a buy if you prize Lovecraftian horror games with high-quality writing, expansive setting, and a deeply immersive atmosphere from start to finish. If you were interested enough to come to this store page, then you really should consider giving this game a try. Your first Captain will die...others may yet survive this...Sunless Sea.
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4 of 5 people (80%) found this review helpful
2 people found this review funny
Not Recommended
32.9 hrs on record
Posted: July 12
The "thumb down" you see above doesn't mean I think „Sunless Sea” is a bad game. It means exactly what it says - that I don't recommend it.

I love stories. I love fables, legends and tales. So obviously „Sunless Sea” lured me with a world where tales are told in every port, where every street urchin can tell you a secret, where memories of distant shores are currency. Wonderfully depressing atmosphere of Falllen London overwhelemed me, when I first set off into the Zee. I'll always remember when I found Khan's Heart for the first time, sudden change of music and relief, that I'll be able to refill my supplies. I'll remember exploring Frostfound, Monkey Foundling's mischief, pilgrimage to Amaradri and many others...

But I have to plead guilty. I've cheated.

You will soon recognize, dear player, that finding a new port and surviving the cruise takes a few hours. Managing your supplies and trying to make some extra coins takes a lot of work. The problem is – it's not hard work. It's slow work. A very, very slow work. After about twelve or more hours I've discovered no more than 20% of the map. I had a dozen started quests, very little improved character skills and was about 1000 echoes short to buy a reasonable boat.

If you have months of free time to spare, you will master the game, explore the game's whole world, complete all quests with multiple captains (It's impossible to level one character enough to complete or even start all game quests). But I don't have that much time. And what's more – I don't think the gameplay is worth it. Sure, in the beginning it's satisfactory to survive a cruise, find a new port, meet new NPC-s... But after some time all that stuff just stays in your way to improve plot, to push the story forward.

So I've cheated. I edited my save file to gain better statistics and boat speed (even the fastest boat you can buy is painfully slow). I wanted more stories, not more cruising back and forth. And I got them. The stories, the places, the characters where beautiful, subtle, ornate, colorful and aesthetic...

Yes, I describe the stories as if they were pictures, because, basiclly, they are. They are beautifuly crafted carvings, decorated shells – pleasing for senses, but empty inside, with no substance, no wisdom, nothing to gain but aesthetic feelings.

And I liked them. I enjoyed them. But they are absolutely not worth hours of coarse gameplay. At it's core „Sunless Sea” is like a long, thick book. Except fragments of it's stories appear once per hundred pages, and are poetic fragments, pretty but shallow.

So if you wanted to play „Sunless Sea” for fables and wonders of the Fallen London, like I did, play for a couple of hours, but not longer. Then edit your save file to gather all the legends from the Unterzee. You will be pleased. But you won't be wiser.
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