
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 1527 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Mermaid Mask is the new installement to the Detective Grimoire series - following Tangle Tower and Secret of the Swamp, both available on Steam. Those are story/puzzle/detective games where you uncover a murder mystery by collecting suspects testimonies and clues, the latter unlocked by a variety of short puzzles. At the crossroad of point-and-click adventures, Professor Layton and Ace Attorney games, in a little package. If you already played Tangle Tower [i](I played it on mobile, so this part doubles as a review of that game too)[/i] : you know what to expect. More of the same. A [b] gorgeous [/b] little game with a pretty artstyle, impactful character design enhanced with animation and voice acting, a solid soundtrack. Memorable and fun characters still retaining a layer of melancholy behind their hidden complexities. A charismatic setting that include just a touch of supernatural and wonder. And for long term fans, lore and references to previous entrees making the world feel connected. About Tangle Tower : [spoiler]There is a common disappointment about the culprit of that game. I understand what it was going for, the feeling of "futility" of the crime, its motives. An empty feeling being the symptom of the rot of Tangle Tower, of a dysfunctional family. But I also understand how some players were left on a sour, unsatisfactory note.[/spoiler]. If that was your feelings about Tangle Tower, I'm happy to say that Mermaid Mask doesn't not have the same issues - so, don't be afraid to delve into this new installment. In quality of life, the game offers multiple subtitle languages, and much to my appreciation the unlockable gallery of concept arts of the characters, locations and clues is still present. This is the type of game by a small studio where the layer of presentation and polish makes you scared there won't be a follow-up. I suppose it's not a worry if the game is a great financial success. So, to avoid this delightful franchise to dive into unknown depths like a submarine, never to be seen again, please play the Mermaid Mask. And Tangle Tower if you haven't already.
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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
Отличное продолжение!! В Tangle Tower главным недостатком являлась абсурдная концовка, здесь же всё максимально стройно - у убийцы понятная и даже драматичная мотивация. Очень нравится, что у на первый взгляд карикатурных персонажей довольно тяжёлый бэкграунд, что делает их очень живыми. Антураж потрясающий, озвучка и анимации на высоте. Одна из любимых серий игр. Готова ждать следующую часть столько, сколько потребуется!
一切由人鱼而起……her……her……好绝妙的收束,那个东西既是开启,又是结束……
great characters! great voice acting! great music! great atmosphere! great game!
They somehow made a snarky, egotistical writer that I still cared about, and that deserves a medal What a follow-up! This is easily the best Detective Grimoire game and makes a lot of small but critical improvements that make it a certified classic in its field. Easily the biggest improvement is in the writing. The dynamic between Grimoire and Sally is wonderfully developed, each suspect is quirky yet filled with intrigue and depth, and the mystery is absolutely stellar. Aside from having a slightly forgettable cast, the biggest issue with 'Tangle Tower' was the abrupt and somewhat nonsensical ending, which both had significant plot holes and left things largely unresolved. This game doesn't seem to fall into any of those traps. Presentation is genuinely incredible. The setting is so well realized, the characters are animated with so much kookiness and fluidity, and the voice acting is great! Also, every single object is fully modelled in 3D, and they often contain numerous details that are relevant to the story. I just wish we could interact with the objects in puzzles like in the Ace Attorney games. The puzzles are still fun, if a bit obtuse at times, and the deductive elements are always a treat. The deductive gameplay takes a backseat until the second half and could probably have been fleshed out a bit more and sprinkled more evenly throughout the experience, but what's there is good. Nitpicks aside, I'm so unbelievably impressed with what SFB Games have delivered. It feels like they've fully realized the series' identity and are now just refining/tweaking things. And they're able to balance comedy and drama extremely well, which deserves special mention. I cannot wait to see where the next entry takes us, because at this point, the sky's the limit with this series. I'd score it 9/10.
it's good. play the other two first
i may be incredibly bad at puzzles but i enjoyed this game very very much! 11/10 on all fronts, animation and voice acting AND THE ENDING AAGHHHHH I WAS SO HAPPY!!!! good game!!! also madam tadpole are you free 2nite ahhaaaaaaaaaaaaa
As always, another game from the Grimoire team that lives up to the series going as far back as the flash game that started it all. I will never have anything but praise for this series, and Mermaid Mask is amazing. I really thought i was figuring it out only to be switched up again and again. Such a great game, highly recommend the full series!
After testing games that were not my cup of tea, I needed to find a new inspiring game that would weaken the sensation of dullness. The Mermaid Mask was exactly what I needed. Having played Tangle Tower and putting this new game high on my wishlist since I discovered its announcement, you could say I was quite thrilled when it came. All the waiting was rewarded with this jewel of a detective game. Everything is perfect in the game: the usual game elements (gameplay, story, music, etc.), how every clue fits like a glove in the narrative, the orientation of the sense of mystery and the mixture of cozy investigating with sharp deductional insight and uncanny elements. Tangle Tower was already high on my detective and general top games list but The Mermaid Mask is a striking example of how near perfectness can attain a higher level. Easily one of my favorite 2026 games! Many thanks for SFB games for this exquisite release.
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Players by region
Where this game's players are, estimated from review languages.
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