The Devil's Calculator

The Devil's Calculator icon

The Devil's Calculator

Cinq-Mars Media

4.8

235 ratings

Free

In this puzzle game, you analyze and decode obscure functions to solve algebraic challenges. Includes levels authored by mathematicians and tools to create custom puzzles.

AppRecs review analysis

AppRecs rating 4.4. Trustworthiness 69 out of 100. Review manipulation risk 27 out of 100. Based on a review sample analyzed.

★★★★

4.4

AppRecs Rating

Ratings breakdown

5 star

92%

4 star

4%

3 star

0%

2 star

1%

1 star

2%

What to know

Low review manipulation risk

27% review manipulation risk

High user satisfaction

92% of sampled ratings are 5 stars

Authentic reviews

No red flags detected

About The Devil's Calculator

An evil calculator has its normal arithmetic operators replaced with sadistically obscure functions. Using logic and algebraic puzzle solving, you must work backwards to interpolate them and purge the calculator of its demons.

Non-profit and open-source, The Devil's Calculator is a highly original indie game that's as addicting as it is educational. Accessible to numberphiles and math novices alike, the first 20+ levels are 100% free to play and enjoy along with several DLC levels, authored by famous mathematicians like Alex Bellos, Grant Sanderson, James Grime, Tony Padilla and James Tanton! The game was named a fan favorite of GDWC, and one of the top 10 indie games of 2019 by PAX.

Each level has you decipher the function of a mysterious operator and use it to calculate the number of the beast to progress. Advanced graphing mechanics, countless features and simple, yet innovative level design provide considerable depth to the gameplay. Players unlock the ability to create their own levels and play challenges others have created - including free DLC levels crafted by the game's creators, educators and mathematicians. With hand drawn artwork and a charming story, the Devil's Calculator is a genuinely fun and gratifying puzzle experience. The game was celebrated at the MOVES conference by the National Museum of Mathematics in New York City.

Cinq-Mars Media is a 501(c)(3) non-profit organization developing technology to support scientific research related to human safety and education, and to make such technology and research available on a charitable basis.
The Devil's Calculator Screenshots
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