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75% positive of 107 · Mostly Positive · Live from Steam
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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.
Live data from Steam, tracked by SteamPlayerBase.
What changed on Steam for this game since we started following it: prices and sales, builds, name, release date and review score.
Review score: 75% on 2026-11-01 → 75% today (107 reviews)
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Not tested by Valve yet. Results from Valve's own testing.
Valve hasn't published test details for this game.
Every build released on Steam for this game since we started tracking it, with the developer's patch notes. Updated within minutes of each new build.
-Typo and punctuation fixes -Minor fixes for ciphers 2, 6, 12 and 14
Fixes: - Error with input on answer on Cipher 17 - Spoiler for puzzle solution in game cutscene
Fixes: - Issues with freezing on "you solved it" when completing puzzles - Incorrect enciphering of Cipher #3
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