LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy
Nintendo 3DS · 2017
About this game
Join Katrielle Layton, our new hero, as she becomes embroiled in a casual, quizzical quest, which has its roots in our hero’s search for her missing father, Professor Hershel Layton.
You'll be whisked around London's famous landmarks, from the Houses of Parliament to Tower Bridge, following Kat, solving case after unlikely case, until she unwittingly uncovers the Millionaires' Conspiracy.
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The story begins with Katrielle setting up the Layton Detective Agency, determined to prove her worth and hoping the exposure will uncover clues about the missing professor's whereabouts.
Help Kat discover clues, solve mysteries and original puzzles! Fashion-conscious players can also redecorate the agency and dress Katrielle in various outfits to suit the case at hand.
With the most puzzles ever included in a Layton game, a colorful new cast, and an intriguing storyline that includes seven millionaires and one whopper of a conspiracy, will she ever be able to find her missing father?
About Nintendo 3DS
The Nintendo 3DS (2011) added glasses-free stereoscopic 3D and a second analog input to Nintendo's handheld line, eventually building a library that rivaled the DS in size and quality. Because the eShop for digital purchases has since closed, physical 3DS cartridges are the only way to preserve access to many titles — a dynamic that's pushing more collectors toward cartridge-based copies even for games that were originally digital-first.
Gamevaro tracks LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy for Nintendo 3DS with separate market values for loose, complete-in-box (CIB) and factory-sealed copies, sourced from real eBay sales. Prices also vary by region — PAL, NTSC-U and NTSC-J releases of the same game often sell for different amounts due to print run sizes and regional collector demand.
Adding LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy to a Gamevaro collection takes seconds — search by title or scan the box barcode, and the app fills in cover art, release details and current pricing automatically. This 3DS release dates back to 2017.
Price history
Market values by condition
PAL
NTSC-U
Recent sales
| Date | Type | Region | Price |
|---|---|---|---|
| 2026-07-12 | Complete in Box | NTSC-U | €25.77 |
| 2026-07-12 | Box Only | PAL | €6.05 |
| 2026-07-12 | Graded New | NTSC-U | €38.47 |
| 2026-07-12 | Box Only | NTSC-U | €10.38 |
| 2026-07-12 | Item only | NTSC-U | €24.93 |
| 2026-07-12 | Item only | PAL | €12.46 |
| 2026-07-12 | Graded New | PAL | €16.64 |
| 2026-07-12 | New (sealed) | PAL | €15.13 |
| 2026-07-12 | New (sealed) | NTSC-U | €34.97 |
| 2026-07-12 | Complete in Box | PAL | €15.24 |
| 2026-07-12 | Manual Only | PAL | €3.79 |
| 2026-07-12 | Manual Only | NTSC-U | €6.48 |
| 2026-07-11 | Item only | NTSC-U | €43.74 |
| 2026-07-11 | Item only | PAL | €45.17 |
| 2026-07-10 | New (sealed) | PAL | €15.12 |
| 2026-07-10 | New (sealed) | NTSC-U | €35.16 |
| 2026-07-10 | Box Only | PAL | €6.05 |
| 2026-07-10 | Item only | PAL | €12.45 |
| 2026-07-10 | Manual Only | PAL | €3.79 |
| 2026-07-10 | Graded New | NTSC-U | €38.67 |
| 2026-07-10 | Item only | NTSC-U | €24.92 |
| 2026-07-10 | Graded New | PAL | €16.63 |
| 2026-07-10 | Box Only | NTSC-U | €11.19 |
| 2026-07-10 | Manual Only | NTSC-U | €7.00 |
| 2026-07-10 | Complete in Box | PAL | €15.23 |
| 2026-07-10 | Complete in Box | NTSC-U | €25.93 |
| 2026-06-18 | New (sealed) | NTSC-U | €34.28 |
| 2026-06-18 | Box Only | NTSC-U | €11.56 |
| 2026-06-18 | Item only | PAL | €12.28 |
| 2026-06-18 | Manual Only | NTSC-U | €7.22 |
Market insights
Rarity & condition
LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy has a steady sales history on the tracked marketplaces, meaning enough copies circulate to establish a reliable market price.
Complete-in-box (CIB) copies typically command a premium over loose cartridges/discs because the original box and manual are more fragile and get discarded or damaged over time — fewer complete sets survive.
Frequently asked questions
How much is LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy worth?
LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy for Nintendo 3DS is currently worth €45.17 loose, €15.24 complete in box, and €15.13 factory sealed. Prices are based on real sales and update regularly on Gamevaro.
Is LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy rare?
LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy has a steady sales history on the tracked marketplaces, meaning it trades hands regularly and isn't considered particularly rare.
What's the difference between loose, CIB and sealed for LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy?
Loose means cartridge or disc only, CIB (complete in box) includes the original box and manual, and sealed means factory-sealed and never opened. For LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy, loose is €45.17 and CIB is €15.24 — CIB commands a premium because original boxes and manuals are fragile and often don't survive.
Is LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy worth more in PAL or NTSC?
The PAL version of LAYTON'S MYSTERY JOURNEY: Katrielle and the Millionaires' Conspiracy is currently worth €45.17 loose, versus €43.74 for NTSC-U. Regional price differences usually come down to print run size and regional collector demand.
Ratings & Reviews
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