The 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 demo and then buy at a Summer Sale special price!
Also try our newest math puzzle, Equate 8! All proceeds from game sales benefit the mission of Cinq-Mars Media non-profit in developing educational games, which are always provided free to teachers and students.
