
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 →
Media

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
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
Engagement
Hours played at review time, across 240 reviews with recorded playtime.
Reviews
Themes across 240 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
Each entry in this series just gets better!! The character design in this game is truly outstanding
this game is such perfect sequel to the already amazing tangle tower !! the ui is so much better, the art has improved, the puzzles were SO fun, the story was intriguing and the ending was so cool & also unexpected like wow!!! if you want a beautiful game with fun characters & just a great story its def worth a play!!! i also love the tangle tower references!! my only nitpick is that sometimes it can be confusing to figure out what to do next to progress but there is a hint button which helps!
Absolutely beautiful game. The right level of challenge of puzzles, amazing art, music, story, beginning and ending. A masterpiece in the puzzle and story genre. Thank you devs for all the work!
If you are looking for a puzzle game with a good mystery this is PERFECT. The case is detailed and gives you enough so you never feel too stuck, but also never feel like it is just walking you through the whole thing. Wide variety of puzzles and logic, the characters were all so unique and fleshed out, and the 3D elements really added a fun surprise. The set up and payoff of every detail was worth it
I loved Tangled Tower, and I LOVED the mermaid mask! Its truly a testament to what this studio can do! BUY IT AND PLAY IT!!!!!!!
One of the best Detective stories I've experienced.
才玩了没多久我就开始期待下一部了
Amazing follow up to a fantastic game! I adore the 3d models and the story was so good
I started my journey with the Detective Grimoire series with *Tangle Tower*, and I really enjoyed it; I highly recommend it—especially if you’ve never played "point-and-click" games before, as it’s a fantastic introduction to the genre. I liked this new Detective Grimoire adventure even more than the first one, and you can really tell the environments were drawn with a lot of love. All in all, I’m eagerly looking forward to the next case for Detective Grimoire and his partner, Sally.
внезапно обнаружила что вышла еще одна часть полюбившейся мне серии все супер круто, 8 часов за один присест
Related
Related
Trends
Steam followers (game-group members) tracked daily from when we started recording.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Audience
Games most often reviewed by the same players — an audience-affinity signal from our review sample, not full ownership data.
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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