
Help Detective Grimoire and Sally explain an impossible crime aboard the Mortuga submarine.
















Here's an excerpt from The Mermaid Mask's Steam description:
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...
Discuss this game with fellow thinky fans on our Discord
Please note: This is not an official server for this game.
Harness magical tools and deduction to investigate the summoning of a disastrous creature.
Identify the traits of collectible monsters from a series of letters.
Solve four tempestuous cases that bridge the gap between both Golden Idol games.
Glimpse events from the past to deduce the fates of a party of adventurers.
Browse through articles and photos to establish historical facts and contradict confused spirits.
Translate the cultural terms within reports, decrees and letters to untangle a complex royal family tree.
Get a free thinky game to play and discuss, plus the latest thinky news and reviews, directly to your inbox every 2 weeks!