
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
the game is good (great actually!) but what makes me feel like i have to write a review singing praises for this game is the amount of thought and skill that went into the character designs, environment designs, and animation. its phenomenal. the art here is wicked inspiring.
Awesome. Loved It. We need more games like this. You can tell the heart that went into making it.
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
5 stars. Love everything about it: plot, characters, callbacks to Tangle Tower, puzzles, art, dialogue, soundtrack. A lot of love went into making this. I never would have imagined that the 2007 flash game on Armor Games would be such a feat of artistry some 19 years later.
I've been so excited for this game to come out and it has lived up to everything I wished for as a sequel for Tangle Tower. The story is amazing and the voice acting makes this game better. Highly recommended for anyone who loves puzzles and a story.
The Mermaid Mask is an absolutely fantastic game. If the demo or trailers are intriguing to you, do yourself the favor and pick up the full game. I loved playing the predecessor game Tangle Tower so much on Switch, I replayed it on Steam a while later. I did not expect The Mermaid Mask to be significantly different gameplay-wise, but I am happy to report that it is [i]even better.[/i] A few notes: - Incredible character animations, silly writing, and impeccable voice acting - Fun puzzles (some more engaging than others, but overall really enjoyable) - Compared to the 2D clues in Tangle Tower, clues are now 3D and contain more hidden info - Art Gallery with fun developer comments Small critique: It would be nice if this game had a chapter select or rewind type feature once the story is finished. Some achievements are missable once you start the final chapter, and it can take a bit of time replaying the game simply to choose a different dialogue option.
Another rousing smash in the Detective Grimoire series. It retains the same charming artstyle and music as Tangle Tower, while offering some great new characters (shout out to my boys Dirk and JD). Offers enough puzzles to be head-scratching but not unsolvable.
Great mystery game with memorable characters. Love this series.
The Mermaid Mask is a 8.5/10 game for me. The writing is great from the humour to the murder mystery itself. The game kept me guessing about multiple things all the way to the end. The voice acting, music, visuals, character designs and animation are all excellent. Compared to The first detective grimoire and tangle tower it's the largest in terms of scope, I clocked in 18 hours for a single exhaustive playthrough, where as tangle tower is roughly 8 hours long. The scale and depth of the story worked well for this however there were drops in the "action" for me during my playthrough. With so many characters to talk to, about so many items and suspects, I had about a 7 hour section where there were no puzzles or interactions, at one point I even believed I was somehow soft locked as I couldn't find how to advance despite exhausting all the dialogue,[spoiler] I eventually realised that I had failed to ask every character about each other [/spoiler] Eventually working it out the game was smooth sailing afterwards with a few more puzzles and a satisfying ending. That's pretty much my review, here's a rant about one thing I didn't like that I hope is fixed/updated. Completion percentage: The first 5 hours of the game had me reaching 35% completion but then my next 6 hours I only made it to 50% completion Using the completion percentage as a guide made me really believe I was encountering a bug, Interrogating each suspect only seemed to add 1% to the %'age despite being a major element in the game. I found that the final 3 hours of the game, I went from 70% completion to 100%, it's so off that it really gives you no indication of how long the game really is and in my case it tricked me into thinking I was completely stagnating when I wasn't. It just needs adjusted to reflect the players actual position in the story imo.
2 hours in. wonderful game building off tangle tower, seems to have a similar paranormal touch to it. Great art, writing, voice acting, everything.
apaixonado meu deus queremos o proximo
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 | 291 | 87% | $15.99 | |
| $37.1K | 256 | 89% | $9.99 | |
| $13.2K | 80 | 95% | $8.99 | |
| $3.7K | 15 | 67% | $14.99 |
Related
| Game | Estimated lifetime revenue | Reviews | Review score | Price |
|---|---|---|---|---|
| $1M | 2.7K | 60% | $16.99 | |
| $1M | 1.6K | 87% | $19.99 | |
| $1M | 2.9K | 79% | $9.99 | |
| $1M | 777 | 81% | $44.99 | |
| $1M | 2.6K | 88% | $16.99 | |
| $1M | 1.1K | 67% | $29.99 |