
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 1529 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
9/10 really amazing. I first played Tangle Tower ages ago, originally on mobile and later on a PS5, I bought it on the console after learning this game was being made and wanting to experience it again. I was incredibly excited when it was announced and now that this game is out it does not disappoint, it has all the charm of the original (I guess it's fairer to say sequel) game and is honestly, in my opinion an even better experience in terms of story, character, and even gameplay with great additions like all the clues being 3D (which is both visually very fun and also a cool way to hide hidden information), I'm honestly so happy it's this good :) In any case I'm probably going to purchase/re-purchase both 'Detective Grimoire', and 'Tangle Tower' on steam, so that I can properly play the whole franchise at least up until this point, (I'd be very happy for another game in the series, at least eventually). I'll probably wait to do that though, I've already bought Tangle Tower twice now and as much as I want to support the creators, I really cannot bring myself to pay full price for the same game three times. Anyway it's incredible, if you like this type of game then you should get it, if you don't have enough money just wait until a sale and pick it up then, it's genuinely so good and well worth the price.
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
This was so fun, with so many fascinating and fantastical elements that made unravelling the mystery all the more exciting and fulfilling. The characters and their relationships are so interesting and make it really easy to connect with the story. A perfect addition to the Detective Grimoire series!
Even better than the prequel, which I didn't think even possible..
ABSOLUTE BANGER. Waiting was 100000% worth it. Thank you to everyone who put in the time and effort to make such a masterpiece. :3
Loved it! I just hope we don't have to wait 7 years for another...
I loved chatting with all the characters, they were all really fun and interesting. The puzzles were creative and never repeat an idea twice. And the animations were very well done!
Huge fan of these games and this one lived up to the hype!
An over all improvement to a very good game. 10/10. A a game with a delightful cast and a mystery worthy of comparison to Agatha Christie, which is some of the highest praise I can give.
I been waiting for a while for this game to come out and i can honestly say that it was worth the wait! Everything from the music to the visuals was top notch, i adored the characters and their interactions and the mystery kept me hooked the whole way. I LOVED it, really i can't recommend it enough, even the puzzles themselves were so unique and fun, really a must play 10/10
delightful in every possible way and an essential game for any detective-genre enjoyer
Selling now
See how fast this game is selling right now — estimated copies and revenue per day from recent review growth.
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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| $1M | 1K | 87% | $34.99 | |
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