
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
WOW! This game was soooo GOOD! The Grimoire games keep getting better and better with every new game. A lot of the things I liked less about Tangle Tower got improved in this one: A more believable story of the murder and better reasoning of the culprit, a more elaborate ending + a brief look to the future of the remaining characters (after the events) + the time it takes to finish the game went up quite a lot (basically doubled) which was fun! I'm very happy the developers went in a slightly different direction with the story this time as the last two games both had the 'searching for mystids/cryptids' storyline which felt a little too similiar. This time they went with an object rather than an animal/creature as the main thing, which felt refreshing! The artstyle, location- and character design were truly GORGEOUS, as to be expected from this incredible team! + The voice acting was so GOOD as well, they truly made the characters come to life! This game and its story felt the most complete and real out of all the Grimoire games so far! I also prefer how this game had very subtle mentions of characters from the earlier games, the ending was so sweet as well! As mentioned earlier the Secrets of the swamp and Tangle tower were a LOT of FUN, but they did feel a little too similiar. This game felt very refreshing! I also really liked the new characters and prefer the characters not all having the same 3 last names haha (Fellow etc.). My only complaint would be that the talking to the characters went on a little too long at times. Asking them about all the suspects, clues and asking the questions was fun, but seemed to take just a bit too long as I felt my attention slither away every now and then and found myself clicking through some of the dialogue to get through everything. I prefer puzzles and looking around the locations for clues over dialogue, so this felt just a bit unbalanced. It would have been even more fun with a few extra clues or puzzles and a little less lenghty dialogue parts here and there. Still I am incredibly excited to see more!!! I'll be patiently waiting for the next game, whatever it may be!
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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
재미있다 라는 말로는 표현할 수 없는 훌륭한 게임성, 감각적인 비쥬얼, 매력적인 캐릭터들. 게임이 끝나고도 오래 그 장면에 남아있게되는 명작입니다. 범인이 전혀 예상되지 않고, 엔딩 부분에 이르러서야 추리를 진행하며 조금씩 깨닫게 되는데 그 과정이 너무나 재밌습니다. 엔딩도 저는 너무나 마음에 들었습니다. 감사합니다.
Stellar voice acting, beautiful art and animation, and a gripping story
What a game! Even better than the last one! A compelling mystery, a creepy and iconic location, absolutely wonderful characters, voice acting and animations... Really, the only thing I wasn't so thrilled about were the puzzles, but they weren't so difficult you couldn't just find the solution with time and patience. 9/10, definitely recommended!
The perfect cap on this amazing trilogy. The wait was worth it
답답하거나 너무막힐 때마다 친절한 가이드가 있어 매우 친절한 추리게임입니다 짧고 아쉽다고 느껴질 정도로 좋았어요 후속작이 더 많이 빨리 나오면 좋겠네요
10/10 game, one of the best indie games ive ever played
Playing Tangle Tower before The Mermaid Mask is highly recommended, even if I begrudgingly have to admit it's not necessary. You do risk a spoiler or two, but not a major one. The art style is as charming as ever, and while I initially disliked the 3D models, they have a wonderful simplicity that I find adorable, and quite fitting. P.S. The music is fantastic, I could listen to Mr. Gripp's soundtrack all day.
THE ENDING DIDN'T SUCK LETS GOOOOOOOOOO!!!!!!!! Godrick Gripp is my favorite guy. Godrick Gripp more like Gotta GET a gripp amiright (iykyk)
The charm, the dialogs, the characters, the soundtrack, the mystery all have been great, the game has been truly lived up to its predecessor.
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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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