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About
Layton's Mystery Journey: Katrielle and the Millionaires’ Conspiracy revamped as Deluxe Edition with multiple improved features! The game centers on Katrielle Layton, the daughter of famous archaeologist and puzzle-solver Professor Hershel Layton. With the help of her assistant Ernest Greeves, she solves cases in and around London, alongside a talking dog that, for reasons unknown, only the two of them can understand.
Storyline
Layton's Mystery Journey follows Professor Hershel Layton's daughter, Katrielle "Kat" Layton, who solves puzzles in her father's place alongside her talking dog Sherl and her friends Emiliana Perfetti and Ernest Greeves. When her father vanishes, Katrielle goes off in search of him, coming across various puzzles and mysteries along the way.
Where to buy
Prices for US · Updated 8/28/2026
News
Poll: Box Art Brawl - Duel: Layton's Mystery Journey: Katrielle And The Millionaires' Conspiracy (Switch) - Nintendo Life
Nintendo Life · 9/28/2025
Need a cosy gaming fix? Try the 10 best relaxing games - Radio Times
Radio Times · 10/2/2024
Talking Point: Professor Layton And The Lost Franchise: Where Did The Beloved Puzzle Series Go? - Nintendo Life
Nintendo Life · 1/2/2023
Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy Critic Reviews - OpenCritic
OpenCritic · 3/3/2022
Layton's Mystery Journey: Katrielle and the Millionaires' Conspiracy Critic Reviews - opencritic.com
opencritic.com · 3/3/2022
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Videos
Screenshots
More in this Series
Professor Layton and the Curious Village
Professor Layton and the Diabolical Box
Professor Layton and the Unwound Future
Professor Layton and the Last Specter
Professor Layton vs. Phoenix Wright: Ace Attorney
Professor Layton and the Miracle Mask
Professor Layton and the Azran Legacy
Layton's Mystery Journey: Katrielle and the Millionaire's Conspiracy
Layton Brothers: Mystery Room
Professor Layton and the Unwound Future HD for Mobile
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