About the Game
Sudoku Mansion is a story-driven puzzle adventure where you explore a mysterious mansion and solve increasingly challenging Sudoku puzzles.
From the Puzzle Creator Nurator
Sudoku Mansion is created by Nurator, a puzzle setter known for his Sudoku variants.
Nurator's puzzles have been featured multiple times on Cracking the Cryptic, one of the world's best-known Sudoku and logic puzzle channels. Check out the Youtube Link on the right side for an example.
If you've encountered Nurator's puzzles before, you'll find that same love of unusual logic and elegant mechanics throughout the mansion.
Enter Sudoku Mansion
The invitation arrives without warning.
No name, no seal.
Only rushed references to missing servants, unstable rooms and a strange invention.
Two sentences have been underlined twice:
"I have found a way to reach beyond the grid. I no longer know whether that is our salvation or our ruin."
Step inside a mysterious mansion where every room is a handcrafted Sudoku variant. Uncover forgotten inventions as you unravel a mystery hidden deep inside the mansion.
Every Room Teaches Something New
Sudoku Mansion is built around one simple idea:
Every room introduces exactly one new concept.
What begins with familiar Sudoku principles gradually evolves into increasingly sophisticated puzzles. New mechanics are introduced one at a time, allowing every discovery to feel earned while constantly expanding the possibilities.
Every puzzle has been handcrafted. There are no randomly generated levels.
Built for Comfortable Play
Logic should be the challenge, not the interface.
Sudoku Mansion includes a variety of accessibility options to help you focus on solving puzzles your way. Adjust text sizes for comfortable reading, choose alternative color themes, enable colorblind-friendly visuals and customize the appearance of puzzle elements to suit your preferences.
The game is fully playable with only a mouse or only a keyboard and you can freely rebind all hotkeys in the game.
Whether you're settling in for a quick puzzle or an evening of exploration, the mansion is designed to be comfortable to play in.

Knowledge Changes the Mansion
As you explore, you'll unlock powerful puzzle classes that completely change how you interpret familiar rooms.
A puzzle once solved as a German Whisperer may later reveal an entirely different solution as a Region Sum Ambassador. The layout remains unchanged. But the rules and the logic transform completely.
And those are only two of the disciplines waiting to be discovered.
Each new class unlocks another perspective, rewarding players who revisit earlier rooms with fresh eyes.
Secrets Hide Behind Every Door
The mansion rewards curiosity.
Closed Vaults.
Traps you better be very careful around.
Some puzzles exist only for those willing to question what they've already learned.
The greatest mysteries are never placed on the main path.
A Mystery Beyond the Grid
The mansions servants have vanished.
Piece together what actually happened as you uncover the truth behind Sudoku Mansion.

Features
Over 50 handcrafted logic puzzles
Explore a mysterious interconnected mansion
Unlock multiple puzzle classes that transform familiar challenges into entirely new experiences
Discover secret rooms and hidden vaults
Solve unforgettable boss encounters that test your mastery
Atmospheric soundtrack
The invitation is waiting.
Screenshots
5 imagesVersion Information
Steam Patch Notes
Official update history
- Added buttons to switch between different phases of a boss
Content
- Unfogges more cells in Phase 2 of the Threefold Vault
- Added another hint for Phase 2
- Reworded hints for Killer cages
- Fixed more typos
Bugfix
- Disabled fading for rooms without full solutions
- Fix conflict checking and check digits for rooms without full solutions
- Disabled fading for outside rooms
- Remade Threefold Vault into a proper multi phase boss
- Turned off spellcheck in player notes
- Add more guiding markers
- Fade digits when completed in a puzzle (or not applicable at all like a 9 in a 8x8 grid)
Content
- Fixed typos in hints
- Added examples to fractured prison and improved hints
- Improved house of chance rules
Bugfix
- Fixed all hover tooltips
- Fixed wrong rule unlock in Vault
- Improved save files against corruption
- Fix colors hiding cages
- Allow clicking on a rule to open the rule hints
Content
- Differentiated tutorials into Steamdeck and not Steamdeck to always show only relevant commands
- Reworded House of Chance rules
- Reworded Untamed Cave rules
- Added example to Fractured Constellation rules
- Fixed typo in Guest Room
Bugfix
- Fixed diverged story texts in demo to be equal to the main game
- Double clicking a cell still has the original cell selected, when moving away with arrow keys or controller
- Fix controller scrolling in Rule hints and Tutorials menu
- Increased text sizes of the main welcome screen
- Increased default text size on Steamdeck
- Allow trackpads on Steamdeck
- Allow more scroll bars to be scrolled with the controller
- Increase Undo limit to 1000
- Allow easier line drawing of longer lines on controller
- Allow backtracking of lines
Content
- Added hint after chapel boss
- Reworded line drawing on controller hint
Bugfix
- Delete/Backspace correctly erase digits in all cases
- Fix visual selection bug on edge case selection types
- Fix color and line mode not working when switching to letters on a controller
- Added Reset View Button on PC
- Clamp maximum pan and zoom to never get the mansion completely offscreen
- Added line drawing with the controller
- Moving the column selection on the controller between columns can now be also done with the arrow keys
- Added M as hotkey for muting
- Added / as hotkey for switching between digits and letters
- Added Shift+Space for reverse cycling through the entering modes
- Option to auto open tutorials on unlock (default on for Steamdeck)
- Increase font size of main menu buttons
Content
- Added epilogue to trapdoor 1
- Reworded first tutorial
- Reworded Killer Cage hint
- Reworded Cave lore
- Reworded endgame help item
- Reworded final puzzle rules
- Added line drawing on controller hint
- Added hint to CoC epilogue
- Added hint to new clues on old cells
- Added controller line drawing tutorial on Steamdeck
Bugfix
- Popup Triggers now fire correctly in all cases
- Fix allowing arrow keys to move the selection to unknown rooms
- Fix save not transferring from the demo on Linux
- Fix cage conflicts in all cases
- Fix the puzzle timer not running when not visible
- Fix onboarding screen not scrolling on high text sizes and small devices
- Remove windows style hover texts
- Fix patch notes scrolling with the controller
- Fix options scrolling with the controller
- Fix controller not working anymore after importing a save file on Steamdeck
- Reworded final puzzle rules
- Reworded Fractured Constellations rules
- Fixed library fog
Bugfix
- Fix display preferences not persisting
- Added more Actions (Undo, Check Conflicts, Check Correct Digits, Restart) to default Steamdeck Template on back buttons
- Controller glyphs now show as soon as a controller is connected
- Help items are only shown when applicable to the current hardware
- The Controls options screen reacts to the current hardware
- Added support for external XBox controller on Steamdeck
- Room pictograms, popup animations and ambient animation are now remembered per device
- Reduced save and export file size
Content
- Clarified Hitpoint Arrow rules
- Clarified Region Sum Line rules
- Added note to Threefold Vault regarding the Solution Checker
- Added colorblind rule clarification to chapel boss text
- Fixed some typos
Bugfix
- Fix Controller after save import
- Fix Conflict Checker now removing pencilmarks higher than the grid size
- Guiding marker points to the next relevant overlap you should explore
- Added option to hide tutorial popups
Content
- Reworded more rules
- Made room spelling more consistent
- Fixed more typos
Bugfix
- Replay newly added popups for old saves
- Fix inconsistent longpress behavior
- Fix some preferences not staying on New Game
- Fix Popup triggers only firing in their room in all cases
- Added hotkeys and Steam Input Actions for all useful puzzle controls
- Undo History is stored in save
Content
- Added Example Puzzle Images for hard to understand rules
- Reworded rules to be clearer
Bugfix
- Suppress Alt for Default Events
- Fix Undo undoing progress in other rooms in special cases
- Proper Controller support
- Reduced battery consumption
- Controls screen and in-game prompts now show controller button glyphs when active
- Display settings are now stored per device
- Shift+Ctrl for color mode
- Long press for selecting all digits/pencilmarks of the same time in room mode
- Allow a small dead zone around cell edges to not select them by holding the mouse
- Rule hint for current boss unlock added to rule hints
- Mark digits as conflicting when higher than grid size (e.g. 9 in an 8x8 grid)
- Add option to highlight region/row/column
- Reworded some hints
- Added option to show solving times
- Added option to customize color muting over fog
- Split animation options into "Popup animations" and "Ambient animation" toggles
- Seperated objectives and rules into two tabs on small devices
- Made margins smaller in left column
- Allow adding line markings on mansion overview
Content
- Made adressing the main character gender-neutral
- Reworded Forbidden Planetarium rules
- Fixed some typos
- Added help item for overlapping lines
Bugfix
- Fix deleting pencilmarks in overlaps with the backspace key
- Ctrl+A adds a pencilmark in letter mode
- Improved save backup recovery
- Fix removing conflicting clues in overlaps
- Region lines are drawn above puzzle overlaps for better visibility
- Fix rare crashes on startup
- Undo only undoes digits and not options or notes
- Fix counting crosses unlock message
Current Release
Build 24908517
Uploaded Aug 24, 2026
Update already requested
Uploaders have been notified
A newer version is available but not yet uploaded
Help keep this updated
Login Required
You need to be logged in to request game updates. Would you like to go to the login page?
Request Update
Request an update for Sudoku Mansion? This will notify uploaders that this game has an available update.
Request Submitted
Your update request has been submitted successfully! Uploaders will be notified.
Request Failed
Failed to submit update request:
System Requirements
How to Install
Sudoku Mansion.exe to play
Troubleshooting tips
• Run Redist/_CommonRedist installers if game won't start
• Add folder to Windows Defender exclusions
• Run as administrator
Download
Direct link available
Needed when extracting (WinRAR / 7-Zip) — not a site login.
93A96D26
b9348b1f0aa3fa6ce0c0843fe36b037ef2c26e6d236f2a0ff546f1de9696f9eb
You May Also Like
View AllDownload Sudoku Mansion for PC with a direct link or via torrent. Get the full version of Sudoku Mansion for free. Sudoku Mansion is a Casual released by Vault Door Studios.