
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 1527 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
Just as good as the first, and largely more refined. Maybe it was just familiarity with Tangle Tower, but I didn't feel like I stumbled nearly as often in either puzzles or investigation. An excellent sequel by every measure.
one of my most anticipated games :D it was amazing just like the others
Media

Related
Related
Price dynamics, follower growth, revenue and sales trajectories with interactive tooltips
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Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1.1M | 3.6K | 81% | $9.99 | |
| $1.1M | 1.3K | 90% | $19.99 | |
| $1M | 1.7K | 63% | $19.99 | |
| $1M | 2.9K | 89% | $14.99 | |
| $1.1M | 7.7K | 94% | $12.99 | |
| $1M | 2.6K | 96% | $11.99 |
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 | 291 | 87% | $15.99 | |
| $37.1K | 256 | 89% | $9.99 | |
| $13.2K | 80 | 95% | $8.99 | |
| $3.7K | 15 | 67% | $14.99 |
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
As a huge fan of the previous Grimoire games, I could not have been more excited for the release of The Mermaid Mask. In fact, I downloaded Steam for the first time a couple of years ago just so that I could get updated when it came out! So trust me when I say that The Mermaid Mask is everything its predecessors were, and much more. To be clear, I think that you can easily enjoy this game as a standalone experience as well, as long as you are ok with some references going over your head. As for my review, I would give The Mermaid Mask an enthusiastic 11/10. The writing is witty, with many moments that genuinely made me laugh out loud. The story is the perfect balance of making you feel smart when you notice a little detail that turns out to be important or make a correct prediction, while also throwing you plenty of great twists that you feel like you could've seen coming if only you'd payed more attention. The puzzles all feel unique and aren't too easy or too hard. The art is incredible, and full of so much care and personality. Everything, from the characters, to the backgrounds, to the clues, is perfection. I also really enjoyed getting a glimpse of how these were designed in the gallery that you can explore once you've reached the end. If you are on the fence about getting the game, just do it. You won't regret it! If anyone at SFB games is reading this, I know that a fourth Grimoire game would be a huge undertaking and that you probably need a break from the series after spending years working on this one game alone. But still, I sincerely hope that Grimoire and Sally's adventures will continue on!
Estava muito tempo esperando por esse jogo ,gostei muito de tangle tower e queria mais ,arte tá muito maneira, os puzzles muito legais ,mas teve dois que eu sofri tive que procurar na internet kkk ,após finalizar o jogo sinto que eu achei o mundo de tangle tower mais interessante mas foi o primeiro jogo da serie que joguei ,alias tem muitas referencias ,não só ao jogo anterior mas como o dective grimore, pelo que parece o jogo é mais longo tambem isso é muito bom. No final eu recomendo se gostou do anterior vai gostar desse, os objetos 3d estão muito bem encaixados.
This was absolutely amazing. I loved all the characters so much that I didn't want anyone to be the murderer, haha. And you know what Grimoire? There better be another game or...or...I dunno, I'll be very sad.
A major improvement from Tangle Tower! Better puzzles, better characters, and a finale that doesn't come out of nowhere! I need another game RIGHT NOW
Loved it!
Sinthia Seafoam Mariana Moon Symmetry Silkmoth Dr. Zephyr and Godrik Gripp Madam Tadpole Magnus Mortuga J.D. Wirman Dirk Dansom on Seafoam Submarine
买就完事了兄弟们 JUST BUY IT BRO
My favorite of the Detective Grimoire games and an absolute wonderful time. Madame Tadpole is my favorite
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Active players
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Players by region
Where this game's players are, estimated from review languages.
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