
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
Absolutely WONDERFUL game, rocketed up to one of my top ten favourites for sure. Thoroughly enjoyed it from beginning to end! I LOVE all the delightfully nuanced and complex characters, all of them brilliantly written, with incredible dialogue that had me laughing one moment, and gasping with horror the next. The game had fun and unique puzzles that were just the perfect level of head scratchingly difficult, as well just as incredibly satisfying to answer! Not to mention, the visuals in this game were just SUPERB!! I constantly found myself studying all of the delightful little details included in each character animation. The mystery of the story was SO well done- had me guessing right up until the end! Absolutely fantastic (and haunting) reveal. Tangle Tower was already one of my most favourite games ever- perfectly satisfying that Professor Layton esque craving I've always sought for. But Mermaid Mask takes everything that Tangle Tower did well and surpasses it!! I can absolutely see myself replaying this game for years to come. I'm STILL floored from that ending!! The team did truly an amazing job. Bravo!
one of if not the best puzzle game I have played!
一如既往的优秀!美术、配乐和配音都很有细节。叼烟斗的人的配音听着很像是叼着烟斗配的
เกือบ 7 ปีแห่งการรอคอย กับการกลับมาอีกครั้งของกริมมัวร์และซัลลี่ ทางผู้พัฒนายังคงรักษาข้อดีของภาคก่อนๆไว้และนำมาต่อยอดได้ดียิ่งขึ้น แต่ละตัวละครเสียงพากย์และอนิเมชั่นดีมาก อุปนิสัยและลักษณะตัวละครชัดเจนน่าจดจำสุดๆ เพลงประกอบเนี่ยบอกเลยว่าไปยืนฟังเฉยๆในห้องจนผู้ต้องสงสัยอึดอัดก็คุ้มแล้ว และที่สำคัญเหมือนว่าพวก Puzzle ต่างๆในเกมจะได้รับการขัดเกลามากยิ่งขึ้นซับซ้อนขึ้นจนสงสัยว่าทำไมคนในจักรวาลนี้มันทำกลอนประตูประหลาดจังแต่ก็นะ สำหรับคนที่สนใจสามารถกระโดดมาเล่นภาคนี้ได้เลยถึงแม้จะมีการพูดถึงตัวละครจากภาคก่อนๆแต่ก็ไม่ได้ส่งผลต่อเนื้อหาในเกม
12小时通关,收获了:足量的前作彩蛋;依旧有趣的新角色(尤其是女角色们依旧设计得很有意思!)、更精致的场景互动、丰富谜题。 结论是它是一款非常富有诚意的系列作品,一定程度上补足了前作的缺陷;没玩过前作可能会对里面提及的少量角色和彩蛋感到疑惑(又或者它们刚好可以成为你去游玩前作的契机),但也会收获非常有趣的12个小时。 以下是一些详细感受(应该不算剧透): 从宣发时就看到里面会有缠结塔彩蛋,再到下载游戏后看见有一个成就叫缠结塔,我不禁带着无比期待的心情打开了新作……点击【开始游戏】的几秒钟后,制作组就成功让我惊喜尖叫了。总之这一作里添加了足量的缠结塔彩蛋,从叙事上进一步补全了世界观(我全程都在因为捋两作的角色关系而感到快乐),还补充了前作部分角色的后日谈。总之诚意很足。(哦还有几个Detective Grimoire的彩蛋来着!) 前作的仓促结尾饱受吐槽,这一作则有所改善。最后的揭秘环节相较前作更加完整,来龙去脉作案动机都解释得很清楚没有当谜语人。结尾给每个角色都加上了告别对话和去向说明,真正做到有始有终。流程指引与谜题提示也都做得更加清晰。 而且必须要说,玩到某个节点时我一直在想“接下来会看到xx吧,如果不出现也太遗憾了!”然后就见到了wwww这简直很爽。 这一作的角色和场景设计依然独具特色(儿童房的设计我最喜欢,引擎室的动画效果也很有特色,像老式动画片),后半段流程相较前作更加精细,很喜欢第三章前后的流程设计,第三章的连续解谜完全让我爽到,刚爽完又被第四章的标题笑死,咋这样!从第三章开始也增加了几个“所有角色待在同一个房间”的场景,弥补了前作在这方面的空缺。 最后要说,结尾从某个点开始我就猜测接下来会出现又一个前作彩蛋,吊了我一会儿还以为没有,不过最终还是看到了!(想看到就看到again)甚至比我想象中的还要好!我一直在哭……总之作为前作爱好者,我度过了幸福的12个小时,新作的有趣角色与谜题则让我快乐且富有成就感地度过了这12个小时。 从制作组访谈和最后的主角对话来看,这个系列不一定还会有续作,他们可能会优先开发新的系列游戏(甚至感觉有点把这一作当暂时告别来做了)。其实还是很期待能看到新作,想看世界观被继续补全,想看到新的有趣角色,但如果遗憾没有,本作里的内容也足以让我满足(我开玩笑的Sally我不要离开你😭) 其它碎碎念: Sally和魔法书互动依旧萌啊,台词里添加了巨量冷幽默我非常满意(就是不理解翻译为什么总想着替制作组解释笑话/反话,不要把玩家当傻子) 感觉制作组的稳定取向是否是豆豆眼肌肉型男、忧郁善良幽灵女孩和活泼理工科女孩() 上一作有Poppy为大家写诗(判词),这一作有人解牌,不过选完解牌答案之后,我还以为后面会有callback什么的,结果就没有了…… 摄入了新的女孩友谊感觉幸福!
The ideal follow-up to Tangle Tower - worth the wait!
Amazing and Beautiful Mystery game, somehow topping Tangle Tower. I will recommend this to everyone from now on.
My sister and I have been waiting for this game since we played Tangle Tower and it did not disappoint. We stayed up late because we had to finish. The puzzles were great, the clues were just enough, and the twists kept us on our toes. The graphics, music, and humor of this series are unmatched. We can't wait for the next one!
I love the audiovisuals, atmosphere, and ambience of SFB's Grimoire series. If you've played Tangle Tower, I found this entry to be a major improvement on the motivation/identity of the killer, which I strongly disliked in TT. Even though a long monologue is still present, I found the story of the perpetrator really interesting. I recommend checking out the other Grimoire games if you want to scratch that Ace Attorney itch.
Absolutely INCREDIBLE blend of murder mystery and supernatural horror, with just the right amount of silliness to keep things from ever feeling to bleak. The art's amazing, the characters are just as charming as Tangle Tower's if not more so, wonderful music and fun puzzles, just an all around great game and definitely my favorite in the series so far. SFB doesn't miss
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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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