
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
A well acted and intriguing story the entire time. A lot of great puzzles too!
Awesome voice acting. Incredible art. Deep story. There is a lot of talking, so if you're not into visual novels you might want to try the demo first, but this game is well worth the money. This is where the passion in video games still shines bright.
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
somehow an even better continuation of a great series of games! A lot of my praise stems from what the series already has a lot of: great character design, and a really cool mystery to solve. But they've stepped it up a notch, and improved what they do best by adding 3D clues and cool new puzzles, but they also improved how the game ended DRASTICALLY (in comparison to tangle tower). In short, I HIGHLY recommend anyone even slightly interested in a fun murder mystery to play this! It's well worth full price!
After the first two games I came in with extremely high expectations, and the game didn’t only meet them but exceeded them greatly This was an outstanding detective game from start to finish - the writing, art, music, story, puzzles, voice acting and more. Make more of these, SFB, and more often! Extremely highly recommended.
Best-in-class visual design, spectacular writing, superb voice acting, and delightful animation. I love adventure/detective games and this series (Detective Grimoire and Tangle Tower) is the best around. Absolute labor of love top to bottom. Would recommend to anyone.
令人愉悅的旅程
YESSSSSSSS! I have been waiting for more Grimoire and Sally what feels like forever! Glad we get more of them and the rest of the ridiculous beautifully animated and voiced characters! SBF you’ve done it again! Can’t wait for what is next!
One of the best detective games out there. Somehow gentle, endearing, and captivating all at once.
damn!七年了终于出续作了!只要活得久什么都能有T T 太好玩了!!!!
아 이 쉐끼덜 예전부터 알았지만 게임 ㅈㄴ 잘만드네
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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| $1.8M | 6.8K | 95% | $19.99 | |
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Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1M | 1K | 87% | $34.99 | |
| $1.1M | 1.3K | 90% | $19.99 | |
| $1M | 2.9K | 89% | $14.99 | |
| $1.1M | 7.7K | 94% | $12.99 | |
| $1M | 2.6K | 96% | $11.99 | |
| $1.1M | 3.1K | 80% | $14.99 |