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Full The Mermaid Mask update
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We’re thrilled to announce that The Mermaid Mask launches on Steam on July 16, 2026.
All aboard the world’s strangest submarine
Summoned by the mysterious Captain Seafoam, Detective Grimoire and Sally arrive with only a cryptic letter, two photographs, and the growing sense that all is not right aboard the Mortuga Submarine.
You’ll explore a hand-crafted submarine, interrogate a fully voiced cast of oddballs, gather evidence, solve puzzles, and slowly assemble the murky truth lying beneath all the surface.
Expect:
An impossible locked-room murder
A strange submarine full of secrets
Eccentric suspects with plenty to say
Clues, contradictions, and satisfying “aha!” moments
Cozy-creepy mystery vibes
Sally being extra Sally
Voices, faces, and suspicious behaviour
We’ve been sharing more about the game’s cast and performances in our recent Steam posts, so have a look there if you’d like to meet some of the voices behind the suspects before accusing them of murder.
Play the demo
You don’t have to wait until launch to start snooping. The demo for The Mermaid Mask is still available on Steam, giving you an early look at the case, the characters, and the extremely normal murder submarine.
Wishlist The Mermaid Mask on Steam, play the demo, and prepare to take the plunge on July 16, 2026.
Look out for previews of the rest of The Mermaid Mask's characters on SFB Games' social channels, and news on the game.
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