
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
I've been waiting YEARRSSSS for this ♥♥♥♥♥♥♥♥ game and I am SO GLAD to finally have it.. THEY HAVE TRULY OUTDONE THEMSELVES WITH THIS.. tho I'm only 40% / 8 hours in.. the story? the characters?? ITS SO GOOD ALREADY. ITS SO GOOD. I do love that they're adding more creepy stuff into these games tho!I wish more detective games did that!
Me encanto la historia, la banda sonora y obviamiente los diseños de cuartos como tambien de personajes. mi personaje Fav es simetrica la amo. Me agrada que sigan agregando mas lore acerca de las familias.
缠结塔新作,挺喜欢这个系列的 悬疑推理解谜,收回画风,人物都很有特色,动画配音非常生动,有超自然要素但不涉及核心诡计 这次是潜水艇上的密室杀人案,主要调查方式是解谜+点击+对话,解谜基本上都是独立的 推理部分主要使用完形填空,和指认证据 解谜可能略微有点难要对脑电波,但设计挺有意思的 推理如果说想直接推出事件全貌比较难,基本上是故事引导你进行的推理,不过各种小推理节奏挺好的玩得比较舒适
Absolutely beautiful game. The right level of challenge of puzzles, amazing art, music, story, beginning and ending. A masterpiece in the puzzle and story genre. Thank you devs for all the work!
[h2]Fantastic Murder Mystery[/h2] SFB Games already crafted phenomenal detective games with Detective Grimiore and Tingle Tower. The main characters were lovable, as they are now. Decteive Grimour and Sally spears are the main detectives in the game. As the player adventures with them and discovers mysteries with twists and turns, the storry becomes more and more intriging. The protagonists are lovable, sympathetic and witty. This helped me ease from the eerie atmosphere of the deep sea, that this game is set in. A lot of things you discover throughout are uncanny, yet interesting. What should you expect from this game? The characters are more expressive than ever. All characters are distinct, relevant and have their own flair. You progress through rooms and unravel the interwoven stories until it becomes a whole. Nothing becomes overbearing. All clues are neatly organized. This facilitates deduction you have to make throughout the game and keep track of the entirety of the story. What is new? The developers implemented 3D-Elements. The flaschbacks are now in adorable 3D-animations. More importantly, you can inspect everything in 3D. You rotate objects and find clues, which deepens the immersive experience. Puzzle are fun, yet simple. Gameplay-wise this is more laid-back. It is an enjoyable detective thriller that progresses into gratifying conclusions. The voice actors did a phenomenal job, they give the game life. I love to see the characters banther, while still meaning business. Thus, I can whole-heartedly recommend this game to everyone, since this is a well-made interactable storybook with puzzle elements. [h3]Graphics[/h3] ☑ [b]Beautiful[/b] ☐ Good ☐ Decent ☐ Bad ☐ Don‘t look too long at it [h3]Gameplay[/h3] ☐ Very good ☑ [b]Good[/b] ☐ Meh ☐ Watch paint dry instead ☐ Just don't [h3]Difficulty[/h3] ☑ [b]Easy[/b] ☐ Normal ☐ Hard ☐ Difficult ☐ Dark souls [h3]Character design[/h3] ☑ [b]Beautiful[/b] ☐ Good ☐ Meh ☐ Bland ☐ Bad [h3]Story[/h3] ☐ Lovely ☐ Some lore ☐ Good ☐ Meh ☐ Bad [h3]Audio[/h3] ☑ [b]Very good[/b] ☐ Good ☐ Meh ☐ Bad ☐ Just don't [h3]Music[/h3] ☐ Very good ☑ [b]Good[/b] ☐ Meh ☐ Bad ☐ Forgot [h3]Audience[/h3] ☑ [b]Kids[/b] ☑ [b]Teens[/b] ☑ [b]Adults[/b] ☑ [b]Grandma[/b] [h3]PC Requirements[/h3] ☐ Check if you can run paint ☑ [b]Potato[/b] ☐ Decent ☐ High ☐ Fast ☐ Ask NASA if they have a spare computer [h3]Performance[/h3] ☐ Perfect ☐ Great ☑ [b]Good[/b] ☐ Meh ☐ Terrible [h3]Game Size[/h3] ☑ [b]Floppy Disk[/b] ☐ Old Fashioned ☐ Workable ☐ Big ☐ Will eat 15% of your 1TB hard drive ☐ You will want an entire hard drive to hold it ☐ You will need to invest in a black hole to hold all the data [h3]Grind[/h3] ☑ [b]Nothing to grind[/b] ☐ Only if u care about leaderboards/ranks ☐ Isn't necessary to progress ☐ Average Grind Gold And SP or materials ☐ Too much Grind Gold And SP or materials (If you want all the achievements) ☐ You'll need a second life for grinding [h3]Price[/h3] ☐ It's free! ☑ [b]Worth the price[/b] ☐ wait for sale ☐ Not recommended ☐ You could also just burn your money [h3]Bugs[/h3] ☑ [b]Never see any Bug[/b] ☐ Minor bugs ☐ Can get annoying ☐ ARK: Survival Evolved ☐ Big rigs over the road racing ☐ The game itself is a big terrarium for bugs [h3]? / 10[/h3] ☐ 1 ☐ 2 ☐ 3 ☐ 4 ☐ 5 ☐ 6 ☐ 7 ☑ [b]8[/b] ☐ 9 ☐ 10
this game is such perfect sequel to the already amazing tangle tower !! the ui is so much better, the art has improved, the puzzles were SO fun, the story was intriguing and the ending was so cool & also unexpected like wow!!! if you want a beautiful game with fun characters & just a great story its def worth a play!!! i also love the tangle tower references!! my only nitpick is that sometimes it can be confusing to figure out what to do next to progress but there is a hint button which helps!
Each entry in this series just gets better!! The character design in this game is truly outstanding
还是tangle tower熟悉的配料,侦探双簧组,诗歌判词,奇奇怪怪的人物。 虽然气氛灵异,但基本上都是科学解释。过程充满张力和悬念,很吸引人,解谜没有任何难为人的地方,案子也比前作更有说服力。但有些一直困惑我的问题始终没得到解答,以至于最后通关还以为自己漏了什么线索,没打出真结局…
An excellent follow-up to Tangle Tower. The mystery is engaging, and the developers trust you to tackle the mystery at your own pace and at your own direction. Puzzles are fun head-scratchers, I definitely needed hints here and there. (Also, you can play with zero hints, which I did until I would cave on the occasional puzzle I couldn't wrap my head around!) The real heart of the game is the unique oddball characters. Beautiful animation and fantastic voice acting for every character in the game. I love that the devs included a gallery with all of the concept art and various notes about the game's development. The series continues to be a gem. SFB will continue to be an instant buy for me!
Her.
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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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