
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 1483 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Truly a masterpiece
It was a long wait, but the game was worth it. I played the previous installments with my 10yo kid and he insisted on putting The Mermaid Mask on the wishlist. So we did, and regularly checked on the release date. At last we had a free weekend together, and cracked the game (3 achievements missing...) in 16 hours. The story was really great, everything logically connected, every character with unique quirks and traits. There was a stage where we had to ask everyone about everything, because sometimes the comments pushing the story forward were a bit unexpected. But once all clues were unlocked, in the endgame, all started to fall into place in the most satisfying and logical way, leaving no loose ends. Really wholesome and touching experience, for something disguised as a "detective game". My kid already asks about the next part!
Media

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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
进度只到 33%, 目前感觉案件要比前作 TANGLE TOWER 要稍微复杂些,搜到的物品也更多。谜题稍微需要想一下但也不难。如果喜欢这个系列的可以闭眼入。
Que barbaridad de juego, tercero en la saga del detective Grimoire y, sin lugar a dudas, el mejor de los 3. Al principio era reacio a la ambientación debajo del mar y pensé que no me gustaría por encima de Tangle Tower, pero es que lo supera en todo. El arte es una pasada, el doblaje es probablemente de lo mejor del título, todos los entornos tienen mil cosas por investigar, hay puzzles en cada habitación, los sospechosos dicen algo distinto y útil con cada pista, la música es increíble también... Y lo más importante, el juego consta de una historia súper interesante y original y de unos personajes estrambóticos y carismáticos como suele ser en esta saga. El juego dura unas 14 horas explorándolo todo y tomándoselo con calma, y por el precio que vale es un regalo. Absolutamente satisfecho y ansioso por esa posible 4ª entrega. Nota personal: 9.5/10 (no le doy el 10 porque hay tres logros que son perdibles y este tipo de experiencias no son entretenidas de rejugar a gran velocidad, además de que uno de ellos te pide equivocarte, algo contraintuitivo. No le resta calidad al título, pero resulta en una progresión insatisfactoria en lo que a logros se refiere, aún así es una tontería, el juego es un 10)
An absolutely thrilling story from start to finish. I absolutely ADORED the dialogue, and all the characters were so incredibly fun. Absolutely an amazing addition to the Grimoire series of games.
I loved this game. I'm recommending it to everyone I know, whether they like puzzle / detective / mystery games or not. What a fun story! Amazing art and voice acting as always! I know the creators said they're taking a break, which is very well deserved, but I cannot wait for them to release another game. Mermaid Mask was so well done, I'll be talking about it to anyone who stays near me long enough to listen.
Moja ulubiona para detektywów powraca w nowej grze! Wyczekiwałąm niecierpliwie na premierę gry i zdecydowanie mnie ona nie zawiodła. Aniamcje, rysunki, postaci i ich charaktery są jeszcze lepsze niż w poprzednich częsciach. Zakończenie jest satysfakcjonujące, a ostatni rozdział gry trzymał w napięciu. Polecam każdemu!
I wanted to write a whole essay of a review, but I had to stop myself. This is downright one of the best written and best made adventure games of the last decade. I am not kidding. The characters are amazing, the writing is absolutely top notch, with a level of depth and content I have rarely seen before. The whole game is constantly intriguing without being filled with pointless red herrings or false leads. I've played the previous two games in the series as well, and each one has been better than the last. Huge congratulations to the dev team!
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!
THE ENDING DIDN'T SUCK LETS GOOOOOOOOOO!!!!!!!! Godrick Gripp is my favorite guy. Godrick Gripp more like Gotta GET a gripp amiright (iykyk)
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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
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