
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
Fantastic lil puzzle game. Was completely sat for the plot. The character designs (and voice acting!!) were incredibly endearing. Also genuinely funny dialogue. My only disappointment was that there wasn't more game. ): (I say this with adoration. Good length and the story was solid. I just really liked playing it a whole lot and my greed for things that inspire joy sickens me.) Also the music was really delightful and fitting for the different characters and rooms. Especially fond of the puzzle solving piece. Sound design with the muffled music underwater was also a nice touch. SFB Games did it again!!
Cool atmospheric and funny adventure
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
Absolutely incredible and a step up from the previous game in every way. The puzzles were great, the characters were well written, and story as well.
It's just like Tangle Tower! Which is the best! Lovely character art and animation, fantastic voice acting, brilliant writing. A complex, dramatic story unfolds piece by piece. If you haven't played Tangle Tower, I'd say the Detective Grimoire games are less investigation-heavy than Obra Dinn or Type Help or Roottrees. There is still a good amount of investigation but the way it's set up, you can never get stuck. It's streamlined. There are random puzzles thrown in to give you more of a logic challenge. I loved these, but they are not strongly tied to the game. Altogether, the SFB games are wonderfully crafted and presented but not challenging. I played them with my kids and they are huge fans!
So amazing!
누가 대가리 깨서 기억상실 된 채로 2회차 하고싶음
Tangle Tower already amazing, this is even better. If you've played the first one and enjoyed it you don't need to hear any more than that... If you're new to the series, this is one of the best mystery games out there. Can be played as a standalone. Incredible voice cast and artwork, compelling mystery that will keep you guessing and always having a fantastic time. Not to mention it's funny and has a wonderful atmosphere! Just play it!!!!
i lovee the funny words the funny people are saying.
Lovely lovely game!! was instantly drawn into Tangled Tower and I'm glad this game had the exact same affect. Loved the cast of characters, the mystery was very well done, and I had a blast looking through the art book at the end of the game. Beautiful work!
I'm awed at the sheer amount of high-quality writing packed into The Mermaid Mask. Why yes, it would be my pleasure to examine every item on this shelf, as well as the shelving itself, the floor below, and the wall behind it. After that, I will corner the ship's captain to demand thoughts, jokes, and stories regarding all 50 clues in my inventory. That's what I live for. You're telling me that the writing is also accompanied by superb voice acting and animation? Wow! Otherwise: Mermaid's Mask is focused on keeping a good pace. The "puzzle" puzzles are neat and straightforward. There is a robust hint system in place that will have characters give feedback on partially incorrect deductions, and there's an explicit hint system available in the game options. In other words, the game isn't hard. You can set the dialogue to auto-play, breeze through the puzzles, and still have a great time with the mystery itself.
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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