Room 40

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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.

Developer: Silhouette Valley Games
Released: 31 Jul 2019 (2019)
Price: Free to play
Platforms
Followers: 270
Languages: English

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Players on Steam, last 48 hours

No player readings for Room 40 in the last 48 hours yet. We poll this game every 30 days.

How this is measured

Player counts over time, as we observed them.

Counts people running the game through Steam only. Players on other stores, consoles or launchers are not included.
We poll the busiest games every 15 minutes and quiet ones as rarely as once a month, so a short spike between polls can be missed. Each game shows how often it is polled.
Our player history starts on 19 October 2026. Earlier peaks, including launch peaks, are not in our data.

Source: Steam Web API, ISteamUserStats/GetNumberOfCurrentPlayers. Full methodology

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Room 40

Players on Steam, last 48 hours

Room 40

Players on Steam, last 48 hours

Players By Month

Players By Month