
Room 40
Room 40 is a puzzle game about learning to decipher and decode secret messages. Learn to break various methods of encryption used throughout history. Starting with basic methods used in ancient Greece and the advancement of these methods all the way through to complex ciphers used in WWII.
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About Room 40
About the game
Room 40 is a puzzle game for PC about learning to decipher and decode secret messages. Learn to break various methods of encryption used throughout history. Starting with basic methods used in ancient Greece and the advancement of these methods all the way through to complex ciphers used in WWII.You play as Amy, who has just graduated from college and is struggling to find a job. She comes across a mysterious letter containing a secret message. She responds to the letter and is enlisted in a government agency as a code breaker. Hidden away in an undisclosed location, Room 40, is where the code breakers reside—spending their days trying to uncover the meaning behind secret messages.
Features
- 16 unique and challenging secret messages to solve.
- 4 bonus secret messages to challenge the hardcore code breakers.
- Included are analytical tools and techniques to use for revealing the true meaning of secret messages.
- Learn about different types of secret messages and all the various forms they come in.
- Become a master codebreaker one step at a time - It is not beyond anyone to figure out what a secret message says armed with the right knowledge and tools.
Why free?
I won’t be able to get as much user experience testing done as I would like. It won’t be as refined as my last game Future Proof. So I don’t feel like I can justify charging for the game. Bugs will be minimal and should've hopefully been all ironed out.If you enjoy it, considering supporting our other game Future Proof or donate on our website.
Game details
Game details
Game modes
Languages
Features
Room 40 player count & reviews
75% positive reviews all-time · 2 peak players in the last 30 days.
Room 40 — frequently asked questions
How many people play Room 40?
Room 40 peaked at 2 concurrent players on Steam in the last 30 days (highest on Jul 13, 2026). The player chart on this page updates daily.
How can I get Room 40 at a discount?
Create a free price alert on this page and KingsPrice will email you when Room 40 drops below your chosen price. The biggest discounts usually appear during seasonal Steam sales and publisher promotions — the sale calendar on this page shows the next confirmed event.
System requirements
Minimum
- OS *: Windows 7/8/8.1/10 (32bit/64bit)
- Processor: Intel Core 2 Duo or equivalent or greater
- Memory: 4 GB RAM
- Graphics: One with OpenGL support
- DirectX: Version 9.0
- Storage: 400 MB available space
- Additional Notes: Resolution of 1280×768 or greater



