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Game · Vault Door Studios

Sudoku Mansion

SteamEurope and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.
  • Steam Deck Verified

A story-driven Sudoku adventure by puzzle setter Nurator, featured on Cracking the Cryptic. Explore a mysterious mansion of handcrafted Sudoku variants, master increasingly intricate puzzles, and uncover the secret hidden beyond the grid.

Before you buy

Redeem on
Steam clientPC: Windows. Needs a free Steam account.
Activates in
Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom.Activates on accounts registered in the EU, EEA, Switzerland and the United Kingdom.Will not activate on accounts registered in North America, Asia, Latin America or Oceania.
You get
A digital activation keyStandard edition. No disc, no box.
Delivery
To your account and by emailDelivered to your account and by email once it is ready. Some orders get a short manual check first.

Trailers and screenshots

01 / 06 Trailer

Sudoku Mansion

Trailer 1 of 1

About this 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.

Description, images and details are taken from this product's Steam page.

Details

Developer
Vault Door Studios
Publisher
Vault Door Studios
Released
19 Aug, 2026
Genres
Adventure, Puzzle, Indie, Casual
Runs on
Windows
Activates on
Steam client, Europe and UK
Interface
English
Full audio
English
Controller
Full controller support
  • Single-player
  • Steam Achievements
  • Full controller support
  • Adjustable Text Size
  • Color Alternatives
  • #category_contrast_controls
  • Custom Volume Controls
  • Adjustable Difficulty
  • Keyboard Only Option
  • Mouse Only Option
  • #category_playable_at_your_own_pace
  • Playable without Timed Input
  • Save Anytime
  • Steam Input API Support
  • Subtitle Options
  • Touch Only Option
  • Steam Cloud
  • Family Sharing

System requirements

Windows

Sudoku Mansion system requirements on Windows
ComponentMinimumRecommended
OSWindows 10 (64-bit)Windows 10 or Windows 11 (64-bit)
ProcessorIntel Core i3-6100 / AMD Ryzen 3 1200Intel Core i5-8400 / AMD Ryzen 5 2600
Memory4 GB RAM8 GB RAM
GraphicsIntel UHD Graphics 620 or equivalentNVIDIA GTX 1050 / AMD RX 560 or better
DirectXVersion 11Version 11
Storage1 GB available space2 GB available space

Activating it on Steam client

  1. Open the Steam client and sign in.
  2. Choose Games in the top menu, then Activate a Product on Steam.
  3. Paste the key and confirm. It appears in your library.

The key is listed for the Europe and UK. Activates on accounts registered in 32 countries: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, United Kingdom. region. Read how regions work before you buy.

Sudoku Mansion€16.04