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Sunless Sea cover

Sunless Sea

A Real Time Strategy (RTS) game by Failbetter Games, released in 2015

85/100🔴Niche / Inactive🥇Proton GoldLinuxPC (Microsoft Windows)iOS

Play as the captain of a steamship on an underwater ocean surrounding the fictional city of Fallen London. Manage your ship's fuel and food supplies as you try not to go mad fighting off lovecraftian monsters.

Single player

Buy Sunless Sea - Best Price

Current lowest price for Sunless Sea PC key. Verified daily.

$18.99
Get Deal for $18.99 ↗
Real-time Sunless Sea deals
Sunless Sea price comparison table across Steam, GOG, and Epic.
StorePriceDiscountAction
🎮Steam$18.99StandardView ↗
💜GOG$18.99StandardView ↗

Sunless Sea Download Size

The official download size for Sunless Sea is 1 GB. Based on current hardware prices, this installation consumes approximately $0.06 worth of SSD storage space.

Standard Install

File Size

1GB

Est. SSD Cost

$0.06USD
100 Mbps
My Internet Speed100 Mbps
Quick Presets

Estimated Time to Install

1 mins

Is Sunless Sea Dead?

Live player count and server population analysis.

🔴Niche / Inactive
43Players Online

There are currently 43 people playing Sunless Sea, indicating a niche or private community. Coordinate via Discord for best results.

Current Activity24h Peak: 51.6
Estimated Match Wait: Long Wait / Discord Required
Live Data from SteamAPI

Where is the Sunless Sea save file?

Manual backup locations for PC, Mac, and Linux.

Steam Cloud Supported
Copy
%USERPROFILE%\AppData\Local\SunlessSea\Saved\SaveGames

How to backup manually on Windows

  1. Press Win + R to open the Run dialog.
  2. Paste the path above and press Enter.
  3. Locate the save files (usually .sav, .json, or similar).
  4. Copy the entire folder to a backup location.
Copy
~/Library/Application Support/SunlessSea/Saves

How to backup manually on Mac

  1. Open Finder and press ⌘ + Shift + G.
  2. Paste the path above and click Go.
  3. Locate the save files in the folder.
  4. Duplicate the folder to create a backup.
Copy
~/.local/share/SunlessSea/Saves

How to backup manually on Linux

  1. Open a terminal and use cd to navigate to the path.
  2. Or use your file manager and press Ctrl + L to enter the path.
  3. Locate the save files (.sav, .json, or game-specific format).
  4. Copy the folder with cp -r or your file manager.
Source: PCGamingWiki ↗

Is Sunless Sea Steam Deck Compatible?

SteamOS and Linux Proton performance analysis.

Valve Official🚫Unsupported
Community Rating🥇 Proton Gold

Community Verdict: Playable!

Don't let the "Unsupported" tag fool you. While Valve hasn't officially verified Sunless Sea, ProtonDB users report it runs perfectly (Gold/Platinum rating). You may need to force a specific Proton version.

Confidence: Moderate
See 8 user configs ↗

Can I Run Sunless Sea?

PC system requirements - Minimum vs Recommended specs.

To run Sunless Sea smoothly, your PC needs at least 1 GB RAM RAM and a 1280x768 minimum resolution or equivalent GPU. Plan for 1 GB of storage.

Minimum1080p / 30 FPS
  • 💻
    OSWindows XP or later
  • ⚡
    CPU2Ghz or better
  • 🧠
    RAM1 GB RAM
  • 🎮
    GPU1280x768 minimum resolution, DirectX 9.0c compatible graphics card
  • 💾
    Storage700 MB available space
Download Size
1 GBSmall

Is Sunless Sea Good?

Aggregated critic scores and player sentiment analysis.

85
Rated 85 out of 100
Generally Favorable4 Verified Reviews

The Verdict

Based on 4 critic reviews, Sunless Sea has received generally positive feedback. With a solid score of 85, it stands out as a strong entry in the real time strategy (rts) category, though it may have minor flaws.

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