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Play Sherlock Holmes and the Mystery of Osborne House (US edition · English / French / Spanish) Online
Sherlock Holmes and the Mystery of Osborne House
Play Sherlock Holmes and the Mystery of Osborne House online. Follow Holmes and Watson through a royal mystery punctuated by compact puzzles. See the Nintendo DS starting guide and controls.
Browser play

Nintendo DS (NDS) — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / X / Y | Z / X / A / S |
| L / R | Q / E |
| START / SELECT | Enter / V |
| Microphone | Not assigned |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Sherlock Holmes and the Mystery of Osborne House
Quick start
Start the investigation, read the first conversation and inspect the available clue points. Open the first puzzle, understand its goal and submit only when its condition is met.
Controls
Use the stylus to choose locations, clues, dialogue and puzzle pieces. Each logic puzzle has its own movement or selection rules; read the help before confirming a solution.
Sherlock Holmes and the Mystery of Osborne House — About this game
Investigate the disappearance of royal information through conversations, scene searches and separate logic challenges. Holmes and Watson move the case forward as you find clues, inspect suspect accounts and solve the puzzle attached to the next obstacle. A blocked doorway or a document can turn into a self-contained challenge rather than an inventory combination. Begin by examining the current scene and reading the instruction fully before moving pieces. Completed puzzles can be revisited in the puzzle section, so return to one later to improve your solution without replaying every conversation.
Sherlock Holmes and the Mystery of Osborne House Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · nds
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.