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Play the award-winning challenge The Devil's Calculator! Rather than the typical scenario of solving for x in an algebraic expression, imagine the operators themselves were unknown... In this challenging math game, an e…
Steam
The Devil's Calculator
Also known as The Devil's Calculator, dc, devils calculator
The Devil's Calculator is a new, non-profit math game by the creator of Synonymy that proves a sophisticated, challenging and educational indie puzzler for numberphiles and lovers of logic and brain teasers
Last update
21 Jun 2026
Players now
0
Original sources
1
Latest update
Latest updates
Update history
Browse past updates and patch notes for this game.
- June 2025
- Steam Summer SaleThe Devil's Calculator provides a sophisticated, challenging indie puzzler for lovers of logic and brain teasers. You don't have to be a math whiz to succeed, but it might turn you into a numberphile after all! Play a d…
- December 2024
- Steam Winter SaleDuring the Steam Winter Sale, try Cinq-Mars Media's games and take advantage of the discounts! Also check out our newest game, CrossAbout, at 20% off. The Devil's Calculator as presented at the MoMath conference:
- November 2024
- The Devil's Calculator discounted in the Steam Autumn Sale!You don't have to be a math whiz to enjoy playing our award-winning puzzle game, The Devil's Calculator! The total will always be 666. Can you find the equation?
- June 2024
- Steam Summer SaleFind a new favorite and save now! The Devil's Calculator Trade Bots Copy Editor Lazy Chess Synonymy
- March 2024
- Steam Spring SaleIncluding The Devil's Calculator, Trade Bots, Copy Editor, Lazy Chess, and Synonymy Play demos, find your new favorite, and buy it at a low price! Proceeds benefit the Cinq-Mars Media Nonprofit mission of developing edu…
- December 2023
- The Devil's Calculator and other games from Cinq-Mars Media non-profit are all on sale! Try a demo and find a new favorite! https://store.steampowered.com/cmmStore
- November 2023
- The Devil's Calculator and other Cinq-Mars Media games discountedGet our award-winning math game, The Devil's Calculator, at a special price! You don't have to be a math whiz to love this puzzle game! Cinq-Mars Media games are always free to educators and students who contact us.
- June 2023
- Steam Summer SaleAll Cinq-Mars Media games are 20-40% off during the Steam summer event! Try a demo and find a new favorite!
- Seamless Discord and Wolfram Integration, UI + Speed Improvements and Podcasts!Our team has made a long overdue update to the game in celebration of our non-profit's latest release, Trade Bots! Along with several bug fixes, performance improvements and upgrades to modern frameworks, we've added se…
- April 2023
- The Devil's Calculator is 50% off in the Steam Puzzle FestThe Devil's Calculator is a captivating math puzzle game based on a narrative in which an evil calculator has had its normal arithmetic operators replaced with sadistically obscure functions. Using logic and a bit of al…
- March 2023
- Cinq-Mars Media games discounted 33-75% in the Steam Spring Sale! Copy Editor The Devil's Calculator Lazy Chess Synonymy While you're browsing, you can also download our new demo, Trade Bots!Patch notes
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