The Devil's 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

Developer: Christopher Cinq-Mars Jarvis. Publisher: Cinq-Mars Media.

Tags: Solo, Puzzle, Indie, Logic.

Steam reviews: Very Positive (95% of 92).

Price: $2.99.

Released 2019-02-18.

Last updated 2025-09-29.

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