
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 | 2.8Kreviews | 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 1520 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
This series is just the best. There will always be a place in my heart for this game. With that being said, I'm madly in love with Gripp
Everything that was amazing about Tangle Tower has been transferred over to Mermaid Mask and improved upon 10 fold! A++ game! Loved every minute! Gathering the clues and listening to the characters to puzzle out the murder was very satisfying. I think there were about two puzzles that I got super stumped on, but nothing to make me incredibly frustrated. Just sometimes wished they would let me know what piece I had right. Otherwise, A beautiful and fun murder mystery. I am making my friends play this >:)
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 |
|---|---|---|---|---|
| $1M | 2.7K | 60% | $16.99 | |
| $1M | 584 | 87% | $49.99 | |
| $1M | 1.6K | 87% | $19.99 | |
| $1M | 2.9K | 79% | $9.99 | |
| $1M | 832 | 81% | $44.99 | |
| $1M | 1.1K | 67% | $29.99 |
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 | 109 | 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
Every Detective Grimoire game is a quality experience made with a passion for adventure. The art style and animation is so unique and full of character, voice acting is top class and the puzzles make sense! Point & click at its finest!
great writing, love all the dialogue. cool art style and fun puzzles.
Same formula with new characters, that are even more fun to interact with and uncover their secrets. Main case hooks right away and the soundtrack is a vibe. Really good sequel, hope there will be more installments in the future.
I had the pleasure of playing Tangle Tower and Detective Grimoire in the past, so I wishlisted this game the moment it was announced. After finishing the game, all I can say is "wow." The writing, art design, characters, voice acting, story flow, and ending make this a masterpiece. Years of hard work from the team are profusely apparent; it is clear they loved their story and were excited to share it with the world. I fully recommend this game.
AHHHHHHHHHHHHHHH! It's finally here and just like Tangle Tower it upholds a high level of quality. In many ways surpassing it. For one the voice actors in this game are top-notch; each one fitting their character perfectly. And the clues being 3D was such an enjoyable change making them fun to interact with, and adding more depth to solving each mystery. Furthermore I can't get enough of the music in this game. It pulled me in and wouldn't let go. I am in love with the Detective Grimoire series, and whether or not [i] SFB [/i] decides to make more. I'll still continue to support and play whatever they make, just for the love of the quality and care they put into each of their games.
I played this right after finishing Tangle Tower (which I do reccomend playing first as it's shorter and there's references to it in this game). Once again, loved it and played it until 4 am multiple times! I don't know which I liked better, I loved both games (haven't played the very first one). Loved that there were some new features, such as being able to open, rotate, and read the clues. The story was very good, I enjoyed it all the way through. All the characters were, like the last game, extremely charming. I loved all of them and it kept me guessing about who the murderer was for a while, as I really liked EVERYONE. The voice actors were great too, once again. They really breathe so much life into the characters. I love the quirks some have while speaking and it all sounds so natural. Props to the va's and devs!! :)
A follow-up game just as good as the last one (Tangle Tower).
Spectacular game! I absolutely adore the characters, the art style, the voice acting, the story and the mystery! I've been waiting (im)patiently ever since I finished Tangle Tower, and this game does not disappoint. I'm not done with the game yet, but am too excited about it, not to share. I had one hiccup so far, where the game stopped reacting. Had to close the game buy no grogress was lost, the autosave feature is very diligent.
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.