
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% | — | $1.1M |
| $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 1529 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
I loved this game! The character work is phenomenal - from the voice acting to the writing. Everyone's at once a kind of expressive oddball that I love meeting in these kinds of mysteries AND someone with a clear emotional goal. The mystery is spooky and esoteric without being confusing, with some heartbreaking motives driving the crime. The puzzles are fun, and the banter between Sally and Grimoire is as great as ever. Just a perfect mystery game
Every Detective Grimoire series is peak. The puzzles are intricate, the characters are interesting, the artwork is sooooooooo pretty. I had to play this on my dad's less than stellar laptop because he got injured but the graphics & animation were still impressive. Above all else the sound design just TICKLES me! I'll be interacting with clues multiple times because the sound makes my brain go purr. I really want a thousand more games in this universe. I'm currently only halfway through but I'm more than satisfied with this game. And to the game devs, & ESPECIALLY the sound guys, may your pillows always be cold & your chairs always comfortable.
Media

Related
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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
The character writing, design, and voice acting are high points of excellence in the entertainment.
its like if tangle tower was the best game ever
Another brilliant game from SFB Games! Great cast of characters, fun puzzles a a mysery that was a delight to solve
Vous avez aimé Tangle Tower ? Vous allez adorer son successeur : The Mermaid Mask. Il reprend les points positifs du jeu précédent : la direction artistique (avec une amélioration au niveau du chara design), le gameplay, l'ambiance. Et corrige les aspects plus mitigés, en particulier le scénario que j'avais trouvé un peu bancal et qui ici est très bien mené avec une bonne structure, des rebondissements, surprises et de l'émotion. Les thèmes musicaux sont également très réussis et marquants. Je voyais le potentiel de Tangle Tower, mais il manquait un petit quelque chose. The Mermaid Mask est un excellent jeu, complet, j'espère que la série Détective Grimoire continuera dans cette direction et que nous aurons le plaisir de suivre à nouveau Grimoire et Sally dans de nouvelles aventures !
Overall a fantastic experience, very happy with this game. The cast of characters feel a little less interconnected than Tangle Tower, where everyone had lived together for years and held long-standing relationships with eachother, but the writing for each individual person in Mermaid Mask feels a little deeper here to compensate. The puzzles are a lot more intuitive, and the ending a lot more satisfying in this game as well. Overall a great game and a greater followup to their previous work.
This game is a masterpiece, If you are a fan of mysterys check it out it is absolutley worth it. i highly reccomend playing the previous games but they are not required. I can't say to much without spoiling so ill just say this. This game is extremely clever and well written. has beautiful art and really charming writing and charecters i highly reccomend playing it and checking their other works out.
Fantastic next chapter to this game series, highly reccomend
優秀的作品 相比糾纏之塔(Tangle Tower)來說有更扎實的人物與劇情刻劃 且在演出與證物上都變成了3d模型 能再次見到TT的各種小彩蛋屬實令人感動
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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