
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 1498 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Another great point n click locked room murder mystery! Thoughtful dialog on every item you could want to click, kinda makes up for the fact you will probably have to click on everything and everyone and get everyone's opinion of everything and everyone. The game is very engrossing though, I was very excited to play it all the way through as soon as it came out.
Desde que jugué el primer juego de detective grimoire, se volvió uno de mis juegos favoritos de este genero, esta entrega no decepciona en nada, tiene una historia y personajes increíbles. Sin dudarlo vale cada centavo, es una saga increíble y ojala sigan haciendo juegos así de buenos
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
I'm only halfway through at time of review and already I have to say this may be one of the best detective games I've ever played (and I've played a lot!). Marvelous characters, an intriguing locked-room murder mystery, and lets you figure things out on your own with a minimum of hand-holding. Like the rest of the series, it makes you feel smart without making you feel dumb (if that makes sense).
SFB Games have done it again. A brilliant and ever-so-charming continuation of the Detective Grimoire series, filled with the witty dialogue and tight cohesive narrative that has come to be expected of the series. I love exploring the new characters and interconnected ties of each entry, and I hope it continues forever! P.S. I absolutely adored the animation work in this game!
it's peak
A game so nice I played it twice. It's best to play Tangle Tower to enjoy all the little throwback references even more, but it also stands on its own as a great entry to the series, certainly the best so far in my opinion.
extremely worth the wait
Great Game
A great game like the previous ones for sure! Can be played as a standalone without having played the previous games, though if you've played the previous games then there's a lot of connections to be found which is interesting The story and plot is good, not too long but too short either, [spoiler]i just wish there was more lore and story about the mermaid and how the mask came to be but that's just curiosity on my part, the story is still great even without knowing them[/spoiler] Characters are unique, likeable and the animations are so fluid and fun to watch. Voices and music are amazing of course The designs and artwork is gorgeous as always, everything is so in tune with each other The price is pretty reasonable, and you get a free digital artbook inside the game so it's a plus Totally worth the wait all this time, and hey I got to learn a lot of submarine/ ship words! 10/10!
IS GOOD!!
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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