
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
I loved how indepth they got in this game, including 3d models and allowing you to thoroughly inspect the items. Being able to read what was on them was fun as well, I played with hints on but I felt I didn't often need them and that it was a pretty intuitive game (this is a good thing in my book!) I had some problems with some puzzles, but more or less I eventually got the hang of them. The only exception was the Typewriter puzzle which I needed to look for a guide on. My favorite was probably the piggy bank puzzle. I initially played this game, simply because I had played Tangle Tower, and absolutely loved it. Playing this game as well has cemented my love for this game developing team, and I hope to see more from them in the future. But as a loving fan, to everyone that helped create and develop this game, take your time and take care of yourselves.
Love the characters and the beautiful animations really add something to such a point & click advanture.
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
개재밌어서 7시간 내리하고 엔딩봄 탱글 타워도 재밌었는데 이번껀 좀더 몰입됨 이번에도 개성넘치는 인물 구성에 스토리는 더 견고해짐 매번 후속작이 나올때마다 발전하는게 느껴져서 다음 후속작도 기대됨 그리고 선장님 매력적으로 생겨서 제발다시 살려내고싶엇음 [spoiler]그리고 믿음소망사랑 중 제일이라는 망사랑 맛있다ㅠ 엔딩본다음에 다른분 리뷰 보고 샐리 일어난 자리 바닥에 FS♡MM 써있는거 보고 가슴팍찢어짐[/spoiler] 다만 자동저장 시스템이라그런지 챕터별 선택이 안되는게 너무 슬픔... 하... 도전과제 다 깨고 싶은데 중간에 놓친거 몇개 있어서 처음부터 플레이해야되는게 눈물남
마치 10시간짜리 엄청 재밌는 영화를 본 기분 스토리도 범인도 예상이 안되는 정말 흥미진진한 영화
Truly a piece of art that surpasses the already amazing, pervious game in this series. Deep story, interesting puzzles, great art, fun & creative characters, & a mystery that make you think & gasp when you finally understand. It's clear how much time, effort, & artistry the studio gave to make such an amazing game. I hope they continue to create such great work & feel proud for what they have made.
Banger
An incredible point and click mystery adventure. Stellar art direction, excellent voice acting, and a story that had me hooked from start to finish. Another amazing Detective Grimoire game, can't wait to see what comes next from this team!
Fantastic mystery game! Really great animation and voice performance
An incredible Point n Click Adventure. It's beautiful, it's funny, it's cozy and the story is a superb detective adventure. 10/10
The superb writing, level of detail, and actors' performances really carry Mermaid Mask from a decent enough puzzle game up to a gripping story with some great humor and a steady drip of intrigue to keep someone going from start to finish in a single day. (Or two days if you don't have a full day of free time.) I can't wait to see what comes next, but I shall wait as best I can nonetheless!
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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