
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 1510 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
A great follow-up to Tangle Tower as the newest installment in the detective Grimoire series. Great atmosphere, decent puzzles and a mystery that's both gripping and enough twists to keep you wondering until the end.
Can't go wrong with Grimoire
A wonderful mystery with wonderful characters and puzzles.
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
Un jeu de haute qualité comme ses 2 prédécesseurs, qui fait toujours la balance idéale entre humour, enquête, personnages attachants et mystère, et finit en belle note poétique, ouverte et mystérieuse comme à l'accoutumée. Certains passages concernant la discussion des indices et portraits avec les suspects peuvent être un poil longs mais le jeu en vaut la chandelle.
Another excellent game in the Detective Grimoire series. Fantastic writing, art, music direction. Love the puzzles. Love the detective work. I had a few guesses about who the murderer was, and I was delighted to be wrong on all accounts. I don't think you need to have played the previous entries in the series in order to follow this one. There's a few call-backs , but if you're that interested, you won't spoil anything by going back to play the previous games after the fact. The game is MUCH longer than it would seem. I thought I'd be wrapping up around the three hour mark, but that's only about a third of the way through the game. The game doesn't open up a lot more after that. It's just that there's so many more puzzles to solve and conversations to have. The only negatives I can say about the game are that the clues don't always make sense unless you're paying a lot of detail to every one of them. This isn't a big deal at first, but by the end of the game, you have literally dozens of clues. It's hard to remember all the details from all of the pieces. You can go back and check them, but it's tedious. The hint system does help some here, but I still found myself blindly clicking through clues on more than one occasion to find the one that worked. Most of the puzzles were just challenging enough to make me think, but easy enough that I could solve them on my own. There's only one where I had to look up the answer, and then only because I had a hard time comparing the puzzle with information found elsewhere in the game. A lot of love and care went into this game. I'd say give it a shot even if you're not usually into point-and-click adventure games. You won't be disappointed.
好玩!!配音和作画一流!!!推理使我大脑旋转!!
phenomenal, cornelius cane is my fave character
This game is very good.
mermaid mask is well written and beautifully executed!! not only would i recommend this game but i would also recommend other games from SFB!! if you enjoy great writing, story, characters, art, and (to me at least) light puzzle game play, then don't hesitate! PLUS i love this franchise! i really love the references to prior games and lore!! makes me want to go replay the other games to connect everything!
第一次接触,游戏解谜难度适中,也有提示。不用提示的话,费点功夫每个尝试也可以,就是浪费时间。剧情代入感比较强,尤其喜欢Mortuga和她女友(应该是女友吧)的关系,我自己体会很深
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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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