
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 →
Media

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
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
Engagement
Hours played at review time, across 200 reviews with recorded playtime.
Reviews
Themes across 200 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
positive critical· bar length = how often the theme comes up
Reviews
This game is one of few point and click games that I could play over and over again without growing tired of it; the art is impeccable and the sound design and music to accompany it creates such an immersive world and adds to the depth of it's characters. Speaking of the characters, I simply couldn't get enough of them; each one was so jam packed with personality it made listening to all of their dialogue so worthwhile and borderline addicting. To put it simply there is no way you could hate this game, the arcs are too tight, each chapter leads to the next - beginning, middle, end - and bang. Not a line wasted.
[h2]日本語対応状況[/h2] 翻訳及び使用フォント共に良好。
A Fantastic edition to the detective grimoire series and triumphant return for sfb games after lots of waiting i am totally satisfied with the depth of puzzles and balanced difficulty just enough i could eventually firgure out most everything without help. The story is well written with nice call backs to the previous game and an at least for me satisfying ending.
The perfect cap on this amazing trilogy. The wait was worth it
中文翻譯有點爛 在關鍵處會影響解謎 除此之外很好玩
The charm, the dialogs, the characters, the soundtrack, the mystery all have been great, the game has been truly lived up to its predecessor.
2.7 hours in and it's just great so far. Excellent puzzles right off the bat, not too hard but they're interesting and reward intuition and experimentation. The same great voice acting and writing as Tangle Tower. I've been dying for more banter between characters in this world. More of the same fun weird art style that goes hard. the music is great too. I was a little disappointed in the end of the previous game but am still so excited to get another detective grimoire game. I will update this as I play more but for now I definitely recommend playing it. It's so good to be back.
An absolute delight in my eyes! Beautiful art style, music, characters, and gameplay! And the voice acting is fantastic! I bought the game on launch, and it was worth every cent. I was thoroughly entertained from start to finish. You can really tell how much effort, care, and love went into making this game, and I genuinely hope the developers are proud of what they achieved. ❤️ I hope lots of people give this game a chance. It's not overly difficult and should appeal to a broad audience. I'll definitely be recommending it to anyone I know who enjoys detective games. [spoiler]Thank you, SFB Games, for giving us Muscle Mommy Tadpole.[/spoiler] [spoiler]There were a couple of narrative loose ends/ open questions for me where I would've loved a bit more information. They stood out to me a bit, but considering how long this game was in development and that time and budget aren't infinite, they're easy enough to forgive.[/spoiler] Gonna go and replay Tangle Tower now!
답답하거나 너무막힐 때마다 친절한 가이드가 있어 매우 친절한 추리게임입니다 짧고 아쉽다고 느껴질 정도로 좋았어요 후속작이 더 많이 빨리 나오면 좋겠네요
예전에 전작인 탱글 타워를 했었는데 이번작이 분량도 더 길고 재밌어요! 탱글 타워에 대한 언급이랑 연결되어있는 부분이 있어서 탱글 타워를 먼저 하는 걸 추천합니다 개인적으로 좋았던 점 - 매력적인 등장인물들 - 등장인물들이 증거품 하나하나에 전부 반응해줌 - 퍼즐이 다양함 - 적당히 즐길 수 있는 난이도 (힌트 사용 선택 가능) 그리고 마지막에 해금되는 아트워크를 보고 제작진이 이 게임에 얼마나 애정을 들였는지 느껴졌어요 추리게임 좋아하시면 한 번 해보세요!!
Related
Related
Trends
Steam followers (game-group members) tracked daily from when we started recording.
Momentum
Pace estimated from the game's recent review growth (our daily snapshots) at its own sales-per-review ratio — a momentum signal, not booked sales.
Audience
Audience
Games most often reviewed by the same players — an audience-affinity signal from our review sample, not full ownership data.
Estimated from the language of this game's reviews — a proxy for where players are, not official Steam demographics.
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