
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% | — | $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 1498 recent reviews and how positive each mention is. A keyword signal, not full sentiment analysis.
Reviews
我现在就要玩第三部,别逼我跪下来求你们呜呜呜,咋能这么好玩
Oh, my green glowing eyes! This is a fantastic addition to the Grimoire and Sally saga. I had countless moments where I was wide-eyed or exclaiming," nooooo wayyyy." No spoilers, but I would 1000% recommend playing Tangle Tower as well. My gears are still excitedly turning. 10/10 recommend.
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
还是一样的风味 超级喜欢画风和推理模式 两个主角时不时爆梗也好喜欢 什么时候出续作啊我真的很需要求求了 (ps:为什么有人四个手指有人五个手指啊我一直在思考……)
Perfectly executed. One of my new favourites of all time
Absoultely amazing game, great addition to the detective grimoire game series, I've been waiting years for this game and it is truly amazing, all of the refrences to the past games are wonderful, and I absoultely loved the story, it wasn't at all where I expected it to go, and I would of never guessed who did it. I would defintely recommend this game, it is so so good
Another successful instalment in the Detective Grimoire story. Manages to tell a story while locked on a submarine without feeling claustrophobic, and the addition of 3D modeling in both clues and recounting of certain events blends another skill into this artful collage.
This was such a fun little game. The art style and voice work are so vibrant and fluid that it's captivating. The story is charming and engaging. All of the characters are memorable and unique and I felt like were all equally suspicious and interesting. I found Symmetry, Sinthia, JD, and Gripp to be the most memorable of the cast but that's like picking your favorite child. For the actual mystery, I felt like a bloody genius for figuring out who the culprit is before the game spells it out. I would note that the music can be a bit overwhelming at times (particularly in the engine room) and some of the puzzles are just beyond esoteric or insane. But that's a minor thing especially with the
能从细节里感知到制作组对作品的溢出来的爱,所以我在游玩过程中也感到十分幸福。感谢赛万味超人的实况,我在观看缠结塔的时候一直在想这个作品如果是我自己游玩的就好了,于是看到续作就立刻买来玩了,特别喜欢。
优秀之作,一个有趣的故事
SFB Games outdid themselves yet again. This was an absolute delight from start to finish!
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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