Released Feb 6, 2015 $18.99 Very Positive Counts toward your Steam games

SUNLESS SEA

By Failbetter Games

Exploration Lovecraftian Survival Story Rich Dark Adventure Atmospheric Singleplayer RPGRoguelikeIndieHorror

Track this game Steam page

Followers —

Reviews 7,638 Very Positive

Players yesterday 45 at the busiest moment

Owners 1M–2M estimated

SUNLESS SEA is a game tagged Exploration, Lovecraftian and Survival by Failbetter Games, released Feb 6, 2015. It has 7,638 Steam reviews (Very Positive). It has an estimated 1M–2M owners on Steam. The Steam games most like it include Sunless Skies: Sovereign Edition, A House of Many Doors and Tales of Metal.

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.

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<a href="https://launchrivals.com/games/304650-sunless-sea"><img src="https://launchrivals.com/games/304650/badge.png" alt="SUNLESS SEA launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/304650-sunless-sea"><img src="https://launchrivals.com/games/304650/badge.png?theme=light" alt="SUNLESS SEA launch date" width="320" height="84"></a>

Sunless Skies: Sovereign Edition 89% match · Exploration, Lovecraftian, Survival
A House of Many Doors 78% match · Exploration, Lovecraftian, Story Rich
Tales of Metal 68% match · Exploration, Lovecraftian, Survival
Aunt Fatima - خالة فاطمة 68% match · Exploration, Survival, Story Rich
DREDGE 68% match · Exploration, Lovecraftian, Story Rich
Void Sails 66% match · Exploration, Lovecraftian, Story Rich
To The Deep 65% match · Exploration, Lovecraftian, Survival
Feed the Deep 64% match · Exploration, Lovecraftian, Survival
Madness Afloat 64% match · Exploration, Lovecraftian, Adventure
Eidolon 64% match · Exploration, Survival, Story Rich

Steam data

Everything Steam lists for SUNLESS SEA · record updated 1 day ago

Steam store

Overview

App ID304650

Release dateFeb 6, 2015Early Access Feb 6, 2015

Last change number38375604

Last record update1 day ago

App type: Game
Developer: Failbetter Games
Publisher: Failbetter Games
Steam profile: Counts toward game count and achievement totals · checked Nov 1, 2025
Franchise: Fallen London Universe
Technologies: Unity detected
Metacritic: 81
Website: failbettergames.com/sunless
Links: Discord Website YouTube Twitch

Language	Interface	Full audio	Subtitles
English	Yes

Windows macOS Linux

Steam Deck: Playable

Single-playerSteam AchievementsSteam Trading CardsSteam CloudFamily Sharing

Prices

Price · US$18.99

On sale0 of 41regions right now

Lowest seen · US$18.99Oct 24, 2026

Checked1 day agoin 41 regions

India₹INR

Every price change is kept from Oct 24, 2026 on. Pick a region below to compare.

Patches

Build	Branch	Updated
24946998	public	Aug 27, 2026
24949779	legacy	Aug 26, 2026

Packages & DLC

ID	Name	Games	Price (US)
56873	SUNLESS SEA	1	$18.99
1644 Bundle	Sunless Sea + Zubmariner bundle	1	$29.98
88433 Bundle	Nighthawks x Sunless Sea	1	$17.99
36918 Bundle	The Fallen London Bundle	1	$27.88

ID	Name	Price (US)
452530	Not on the store yet	—

Depots

ID	Name	Systems	Size	Download	Manifest
304651	— English	Windows	720.7 MB	292.3 MB	3777491160654089486
304652	— English	macOS	820.3 MB	323.9 MB	221534124276427066
304653	— English	Linux	737.7 MB	296.5 MB	9021741538535760209
452530	— English DLC 452530	All	—	—	—
452531	— English DLC 452530	Windows	884.4 MB	355.0 MB	3619656317164151289
452532	— English DLC 452530	macOS	984.0 MB	386.7 MB	2137120213666023890
452533	— English DLC 452530	Linux	901.4 MB	359.5 MB	403894994201738050

Branch	Build	Updated	Access
public	24946998	Aug 27, 2026	Open
legacy Unity 5.5 version	24949779	Aug 26, 2026	Open

Configuration

Install foldersteamapps/common/SunlessSea

Executable	Systems	Description
Sunless Sea.exe	Windows	Launch
Sunless Sea.app	macOS	Launch
Sunless Sea.x86_64	Linux · 64-bit	Launch
Sunless Sea.x86	Linux · 32-bit	Launch

Space per player9.5 MB

Filesup to 100

Save locations1

Root	Path	Pattern	Systems
WinAppDataLocalLow	Failbetter Games/Sunless Sea/saves	*.json	All

Screenshots

Update history

Oct 25, 2026 · 16:44 #38375604
- appid removed
- common.ReleaseState added released
- common.releasestate removed
- config.launch.4.config.BetaKey added legacy
- config.launch.4.config.betakey removed

Data from public Steam pages, updated daily; 2 days of history. Owner counts are estimates. LaunchRivals is not affiliated with Valve or Steam.

SUNLESS SEA

About SUNLESS SEA

Steam data

Overview

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India₹INR

Americas 10

Europe 5

CIS 4

Asia-Pacific 15

Middle East & Africa 7

Patches

Builds

Packages & DLC

Packages

DLCs

Depots

Depots

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Cloud saves

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Update history

Changes to the Steam record