
An impossible locked-room murder: Captain Mortuga lies dead beside an ancient cauldron aboard the world’s strangest submarine, crewed by sketchy suspects. A handcrafted point-and-click with sharp humour and tricky puzzles. Dive into the next mystery from the creators of Tangle Tower & Crow Country.
Modeled estimate, not a reported figure. How we estimate →
Prices
The United States storefront in every case, so this compares stores and not countries.
Prices
Each in the currency that store quoted — not converted: the gap between two rows is the publisher's pricing, not an exchange rate.
Every market we collect.
About
In the pitch-black waters beyond a long-abandoned fishing town, the enigmatic captain of the world's strangest submarine has been murdered. Some say he was an immortal time-traveller. Others say he was a vampire, cursed to stay hidden beneath the waves forever...
Found alone in a locked room, with only an ancient stone cauldron to suggest how he might have died, it's up to Detective Grimoire and Sally to piece together what really happened. Was it a curse, released from the cauldron? One of the submarine's eccentric crew? Or does the bizarre truth run even deeper...
• Every clue is a fully realised 3D object waiting to be examined for hidden secrets
• Grimoire and Sally are back, and joined by a fully voiced cast of mysterious suspects
• A hauntingly beautiful original soundtrack performed by the Budapest Art Orchestra
• Explore every hand-painted inch of The Mortuga Submarine, where not all is as it seems...
*Voice audio is only in English
Genres
Sums Steam only; PlayStation publishes no volume signal, so the true total is higher by an unknown amount.
| Store | Price | Audience | Score | Chart | Est. revenue |
|---|---|---|---|---|---|
SteamYou are here | $19.99 | 2.9Kreviews | 99% | — | $1M |
| $19.99 | 69ratings | 96% | — | not modelled |
Matched by title — a reused name can pair the wrong games. * is a critic aggregate. Prices and positions are each store's United States storefront; Epic charts worldwide. Audience and Score too, except Steam's, which is worldwide.
Engagement
Reviews
Themes across 1487 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Masterfully designed, such a great game with very intricate storytelling.
great time
This game is everything I hoped it would be and more. I can not emphasize enough how fun it was to discover the motivations of some characters and the killer. I was and still am enthralled by the game and its characters and story. This game was so well crafted, so charming, funny, and gripping. The wait has been more than worth while.
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Stats
All-time low is the lowest price we've recorded for this game since we started tracking it.
Languages: English*, French, Italian, German, Spanish - Spain, Japanese, Korean, Portuguese - Brazil, Russian, Simplified Chinese, Spanish - Latin America, Traditional Chinese*languages with full audio support
Hours played at review time, across 1.5K reviews with recorded playtime.
positive critical· bar length = how often the theme comes up
Fun little game. I prefer it over Tangle Tower because of the writing, mystery, and length.
好玩!期待下一部
An incredible sequel to an already incredible game. It's fresh while still connecting tothe previous titles in a believable way. Absolutely worth the years spent in suspense over the details of it's release
So I opened this game, blinked, and 7 hours had passed. I don't think I've ever willingly done something for 7 hours straight without a break. And I'm only 50% of the way done with the game! This thing is incredibly charming- I find myself asking every single character about every item even if it's not relevant just to enjoy the dialogue. The animations and design are so beautiful, and I really appreciate the care put into each story. Can't wait to finish it! Definitely a worthy successor to tangle tower! I'm absolutely loving it so far
体量和前作差不多,但是故事好了很多,全语音,不错的游戏
So much fun! My wife and I are a tremendous fan of tangled tower, it's one of my favorite gaming experiences we've shared. So the bar was set very high for Mermaid Mask and it was worth the wait! The writing is so fun, the characters are the star of the show and I have my favorites, but the plot points and leads are such fun jumping points to come up with your own theories. Speaking of the writing, what a tremendous task it was to write everything for this game wow!! I can't even imagine how big that google doc was haha. Amazing work from such a small team! Loved the ending. I'd recommend this to anyone who enjoys detective games or stories.
I played this game as soon as I physically could and I have to say... Absolutely worth it! This is the perfect follow-up to "Tangle Tower". The story manages to be self-contained while also referring back to the previous games, making it a satisfying experience whether or not you've played "Secret of the Swamp" and "Tangle Tower"
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
Active players
Estimated daily and monthly active players (DAU/MAU) modeled from peak concurrency.
Players by region
Where this game's players are, estimated from review languages.
Players also reviewed
The games this title's players most often review too — audience affinity.
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| $1M | 1.4K | 73% | $19.99 | |
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