
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
Merci Ayant maintenant fait les Tangle Tower et celui ci, je me sens vraiment admiratif du travail fait sur ces oeuvres que ce soit par la narration, le gameplay, le design, l'art, les musiques etc, tout est parfait. Merci pour cette experience que je n'oublierai pas de si tôt.
I would play 100 of these games
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
This and every other Pro feature is free until October 20, 2026. A free account is all it takes.
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
Zo meeslepend dat je het achter elkaar wil spelen!
Holy guacamole this game is truly incredible. The character design is so diverse, interesting to look at and memorable. It fits so well with both their roles in the story as well as their personalities, both hidden and shown aspects thereof. The art style and direction is absolutely mersmerizing, I have no idea how they manage to make this game look so damn gorgeous. The music is very fun, playful and just great to listen to. Very atmospheric at times or just a bop whenever feels fitting, mostly for character themes. I would also praise the story, but I shan't in fear of spoilers. This mystery is so enticing. I was swallowed whole by this game. And now that I have been spit out I am a person changed for the better. Please, please buy this. Try it out as a demo first, obviously. And then buy it because you will be sold on it. This game should be more expensive. The quality is simply too great to justify such a price.
An absolute masterpiece of the genre, if not the best point & click detective adventure ever made. Everything from Tangle Tower was iterated upon flawlessly. The art is incredible, as are the voices and characterizations. The puzzles are very good, just difficult enough usually. Being able to deduce the culprit from small breadcrumbs along the path while also not being quite sure until the very last moment, just perfect. Thank you for your work SFB games. Once we finished it, we immediately wanted to see more of this world, but we absolutely understand the undertaking these games take. Looking forward to whatever comes next from SFB!
an amazing detective game, SFB Games has a really tight grasp on what makes a great detective game, the art is phenomenal, the story is engaging, the characters have so much life, the puzzles are just the right combination of sometimes challenging but rewarding when figured out, they keep the it fresh between games trying to keep moving forward. for instance they have added 3d animations to expand upon the already beautiful artstyle and finally the comedy is just perfect, the little comments that sally and grimoire make about different enviroment features really makes them feel more dimensional instead of caricatures, a 10/10 game for me
I have been looking forward to this game since I played Tangle Tower in 2024. I checked X religiously to see if there had been any updates or news pretty much every week. The wait was totally worth it. It took what I loved about Tangle Tower (as well as Detective Grimoire) and expanded and improved upon it. Each character, puzzle, and even small detail in the background is ridiculously charming and engaging. I sincerely hope they make fifty more and I will happily (but maybe not patiently) wait for each one.
The third installment in the Detective Grimoire series and SFB Games deliver yet again. Everything about these games are so well thought-out and executed; the plot, the music, the character design, the mystery, the puzzles, etc. A lot of small and hidden details are added in the clues and interrogations with the suspects that it's easy to sometimes miss out on a few that end up revealing who the culprit turns out to be, but once the reveal happens you piece all the things together and you end up feeling mind blown (at least I know I did.) I also liked how easily you get attached to the characters and end up wanting more. They do reference the last two games quite often here, so it is better to start from the beginning if you do decide to play it. There's also more world building in this one than the previous two games, which I absolutely loved and appreciated because everything feels more fleshed out here. I did read the developers wanting to take a break after The Mermaid Mask, so do yourself a favor and catch up on these games before they put out the next one (whenever it is, I'll be there *insha'Allah*)
Amazing from start to finish. Great characters, dialogue, puzzles, everything! 10/10 for me!
1000
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.
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1.8M | 6.8K | 95% | $19.99 | |
| $607.9K | 1.8K | 92% | $14.44 | |
| $83.2K | 222 | 84% | $15.99 | |
| $37.1K | 256 | 89% | $9.99 | |
| $13.2K | 109 | 95% | $8.99 | |
| $3.7K | 15 | 67% | $14.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1M | 992 | 87% | $34.99 | |
| $1M | 2K | 58% | $19.99 | |
| $1M | 493 | 83% | $49.99 | |
| $1M | 1.3K | 40% | $19.99 | |
| $1M | 1.5K | 73% | $19.99 | |
| $1M | 3.1K | 92% | $13.99 |